F10˙˙Powertrain
BMW˙˙Service
General˙˙information
Symbols˙˙used
The˙˙following˙˙symbol˙˙/˙˙sign˙˙is˙˙used˙˙in˙˙this˙˙document˙˙to˙˙facilitate˙˙better˙˙comprehension˙˙and˙˙to˙˙draw
attention˙˙to˙˙particularly˙˙important˙˙information:
Contains˙˙important˙˙safety˙˙guidance˙˙and˙˙information˙˙that˙˙is˙˙necessary˙˙for˙˙proper˙˙system˙˙functioning
and˙˙which˙˙it˙˙is˙˙imperative˙˙to˙˙follow.
Information˙˙status˙˙and˙˙national-market˙˙versions
The˙˙BMW˙˙Group˙˙produces˙˙vehicles˙˙to˙˙meet˙˙the˙˙very˙˙highest˙˙standards˙˙of˙˙safety˙˙and˙˙quality.˙˙Changes
in˙˙terms˙˙of˙˙environmental˙˙protection,˙˙customer˙˙benefits˙˙and˙˙design˙˙make˙˙it˙˙necessary˙˙to˙˙develop
systems˙˙and˙˙components˙˙on˙˙a˙˙continuous˙˙basis.˙˙Consequently,˙˙this˙˙may˙˙result˙˙in˙˙differences˙˙between
the˙˙content˙˙of˙˙this˙˙document˙˙and˙˙the˙˙vehicles˙˙available˙˙in˙˙the˙˙training˙˙course.
As˙˙a˙˙general˙˙principle,˙˙this˙˙document˙˙describes˙˙left-hand˙˙drive˙˙vehicles˙˙in˙˙the˙˙European˙˙version.˙˙Some
controls˙˙or˙˙components˙˙are˙˙arranged˙˙differently˙˙in˙˙right-hand˙˙drive˙˙vehicles˙˙than˙˙those˙˙shown˙˙on˙˙the
graphics˙˙in˙˙this˙˙document.˙˙Further˙˙discrepancies˙˙may˙˙arise˙˙from˙˙market specific˙˙or˙˙country-specific
equipment˙˙specifications.
Additional˙˙sources˙˙of˙˙information
Further˙˙information˙˙on˙˙the˙˙individual˙˙topics˙˙can˙˙be˙˙found˙˙in˙˙the˙˙following:
" in˙˙the˙˙Owner's˙˙Handbook
" in˙˙the˙˙integrated˙˙service˙˙technical˙˙application
Contact:˙˙conceptinfo@bmw.de
İ2009˙˙BMW˙˙AG,˙˙Munich,˙˙Germany
Reprints˙˙of˙˙this˙˙publication˙˙or˙˙its˙˙parts˙˙require˙˙the˙˙written˙˙approval˙˙of˙˙BMW˙˙AG,˙˙Munich
The˙˙information˙˙in˙˙the˙˙document˙˙is˙˙part˙˙of˙˙the˙˙BMW˙˙Group˙˙technical˙˙training˙˙course˙˙and˙˙is˙˙intended
for˙˙its˙˙trainers˙˙and˙˙participants.˙˙Refer˙˙to˙˙the˙˙latest˙˙relevant˙˙BMW˙˙Group˙˙information˙˙systems˙˙for˙˙any
changes/supplements˙˙to˙˙the˙˙technical˙˙data.
Information˙˙status:˙˙December˙˙2009
F10˙˙Powertrain
Contents
1. Drive˙˙Train˙˙Variants..................................................................................................................................................................................................................1
1.1. Models.....................................................................................................................................................................................................................................1
1.1.1. gasoline˙˙engines....................................................................................................................................................................1
1.2. Additional˙˙information....................................................................................................................................................................................1
2. Engines............................................................................................................................................................................................................................................................3
2.1. N52˙˙engine......................................................................................................................................................................................................................3
2.1.1. Technical˙˙data............................................................................................................................................................................3
2.1.2. Full˙˙load˙˙diagram...................................................................................................................................................................5
2.2. N55˙˙engine......................................................................................................................................................................................................................6
2.2.1. Technical˙˙data............................................................................................................................................................................7
2.2.2. Full˙˙load˙˙diagram...................................................................................................................................................................7
2.3. N63˙˙engine......................................................................................................................................................................................................................9
2.3.1. Technical˙˙data........................................................................................................................................................................10
2.3.2. Full˙˙load˙˙diagram..............................................................................................................................................................10
2.4. Engine˙˙type˙˙and˙˙engine˙˙identification..............................................................................................................................11
2.4.1. Engine˙˙type...............................................................................................................................................................................11
2.4.2. Engine˙˙identification....................................................................................................................................................12
3. Manual˙˙Transmission........................................................................................................................................................................................................14
3.1. Description...................................................................................................................................................................................................................14
3.2. Variants...............................................................................................................................................................................................................................14
3.3. K˙˙manual˙˙transmission.............................................................................................................................................................................14
3.3.1. Intermediate˙˙mounting............................................................................................................................................16
3.3.2. Dry˙˙sump˙˙lubrication..................................................................................................................................................17
3.3.3. Synchronization..................................................................................................................................................................17
3.3.4. Connection˙˙dimensions.........................................................................................................................................17
3.3.5. Technical˙˙data........................................................................................................................................................................17
3.4. G˙˙manual˙˙transmission.............................................................................................................................................................................18
3.4.1. Technical˙˙data........................................................................................................................................................................18
3.5. Gearshift˙˙mechanism..................................................................................................................................................................................19
4. Automatic˙˙Transmission.............................................................................................................................................................................................21
4.1. Description...................................................................................................................................................................................................................21
4.2. Variants...............................................................................................................................................................................................................................21
4.3. GA8HP˙˙transmission....................................................................................................................................................................................21
4.3.1. Technical˙˙data........................................................................................................................................................................23
4.4. Gear˙˙selector˙˙switch.....................................................................................................................................................................................23
5. Rear˙˙Axle˙˙Differential.......................................................................................................................................................................................................25
5.1. Description...................................................................................................................................................................................................................25
F10˙˙Powertrain
Contents
5.2. Versions.............................................................................................................................................................................................................................25
5.3. Rear˙˙axle˙˙final˙˙drive˙˙lightweight˙˙construction.......................................................................................................25
6. Driveshaft˙˙and˙˙Axle˙˙Shafts....................................................................................................................................................................................27
6.1. Driveshaft........................................................................................................................................................................................................................27
6.1.1. Overview.........................................................................................................................................................................................27
6.1.2. Crash˙˙function.......................................................................................................................................................................28
6.2. Axle˙˙Shafts...................................................................................................................................................................................................................28
6.2.1. Description.................................................................................................................................................................................28
6.2.2. Versions...........................................................................................................................................................................................28
6.2.3. Overview.........................................................................................................................................................................................29
F10˙˙Powertrain
1.˙˙Drive˙˙Train˙˙Variants
F10˙˙Drive.
1.1.˙˙Models
1.1.1.˙˙gasoline˙˙engines
535i 550i
Engine N55B30M0 N63B44O0
Power˙˙[kW]˙˙HP [225]˙˙300 [300]˙˙400
Torque˙˙[Nm]˙˙lb-ft [400]˙˙300 [600]˙˙450
US˙˙exhaust˙˙emission˙˙standard ULEVII ULEVII
Manual˙˙transmission GS6-45BZ GS6-53BZ
Automatic˙˙transmission GA8HP45Z GA8HP70Z
Rear˙˙axle˙˙differential Rear˙˙diff˙˙205AL HAG˙˙225AL
1.2.˙˙Additional˙˙information
For˙˙the˙˙descriptions˙˙of˙˙the˙˙engines˙˙and˙˙the˙˙eight-gear˙˙automatic˙˙transmission,˙˙refer˙˙to˙˙the˙˙following
information˙˙bulletins:
1
F10˙˙Powertrain
1.˙˙Drive˙˙Train˙˙Variants
" Information˙˙bulletin˙˙for˙˙N52˙˙engine
" Information˙˙bulletin˙˙for˙˙N55˙˙engine
" Information˙˙bulletin˙˙for˙˙N63˙˙engine
" Information˙˙bulletin˙˙for˙˙GA8HP˙˙automatic˙˙transmission.
2
F10˙˙Powertrain
2.˙˙Engines
2.1.˙˙N52˙˙engine
N52˙˙engine
Highlights
" Magnesium-aluminum˙˙composite˙˙crankcase
" Valvetronic˙˙II
" Volume˙˙controlled˙˙oil˙˙pump
" Electric˙˙coolant˙˙pump.
" Three-stage˙˙intake˙˙manifold˙˙(DISA)
" Magnesium˙˙cylinder˙˙head˙˙cover
" Single-belt˙˙drive
" Exhaust˙˙manifold˙˙in˙˙lightweight˙˙construction.
2.1.1.˙˙Technical˙˙data
N52B30M1 N52B30O2
E60,˙˙528i F10,˙˙528i
Type R6 R6
Valves˙˙per˙˙cylinder 4 4
Engine˙˙control˙˙system MSV80 MSV90
Displacement 2996 2996
[cm3]
3
F10˙˙Powertrain
2.˙˙Engines
N52B30M1 N52B30O2
E60,˙˙528i F10,˙˙528i
Stroke/bore [mm] 88.0/85.0 88.0/85.0
Output˙˙at˙˙engine˙˙speed [kW]˙˙HP [170]˙˙230 [190]˙˙240
[rpm] 6500 6600
Torque˙˙at˙˙engine˙˙speed [Nm]˙˙lb-ft [270]˙˙200 [310]˙˙230
[rpm] 2750 2600˙˙ ˙˙3000
Compression˙˙ratio [µ] 10.7˙˙:˙˙1 10.7˙˙:˙˙1
Fuel˙˙grade ROZ˙˙91˙˙ ˙˙98 ROZ˙˙91˙˙ ˙˙98
Exhaust˙˙emission˙˙standard - ULEVII
Acceleration˙˙0 100˙˙km/h/62mph [s] 7.6 6.7
(Automatic˙˙transmission)
4
F10˙˙Powertrain
2.˙˙Engines
2.1.2.˙˙Full˙˙load˙˙diagram
Full˙˙load˙˙diagram,˙˙E60˙˙528i˙˙with˙˙N52B30M1˙˙engine˙˙compared˙˙to˙˙F10˙˙528i˙˙with˙˙N52B30O2˙˙engine.
5
F10˙˙Powertrain
2.˙˙Engines
2.2.˙˙N55˙˙engine
N55˙˙engine
The˙˙N55˙˙engine˙˙is˙˙the˙˙successor˙˙to˙˙the˙˙N54˙˙engine.˙˙Technical˙˙updates˙˙and˙˙modifications˙˙have˙˙made
it˙˙possible˙˙to˙˙use˙˙only˙˙one˙˙exhaust˙˙turbocharger.˙˙The˙˙technical˙˙data˙˙have˙˙remained˙˙nearly˙˙identical,
with˙˙reduced˙˙cost˙˙and˙˙improved˙˙quality.
Highlights
" Single˙˙turbocharger˙˙(TwinScroll)
" Air-gap-insulated˙˙exhaust˙˙manifold˙˙six˙˙in˙˙two;˙˙catalytic˙˙converter˙˙close˙˙to˙˙the˙˙engine
" Direct˙˙fuel˙˙injection˙˙with˙˙central˙˙injector˙˙position˙˙(solenoid˙˙valve˙˙injectors)
" Third˙˙generation˙˙Valvetronic
" Digital˙˙Motor˙˙Electronics˙˙(MEVD17.2˙˙Bosch)˙˙engine˙˙mounted,˙˙integrated˙˙into˙˙the˙˙intake
manifold,˙˙FlexRay-compatible
" Lightweight˙˙construction˙˙crankshaft
" Map-controlled˙˙oil˙˙pump˙˙(volume˙˙control)
" Standardized˙˙single-belt˙˙drive˙˙across˙˙all˙˙series
" Initial˙˙start-up˙˙in˙˙F07,˙˙afterwards˙˙use˙˙across˙˙all˙˙series.
6
F10˙˙Powertrain
2.˙˙Engines
2.2.1.˙˙Technical˙˙data
N54B30O0 N55B30M0
E60,˙˙535i F10,˙˙535i
Type R6 R6
Valves˙˙per˙˙cylinder 4 4
Engine˙˙control˙˙system MSD80 MEVD17.2
Displacement 2979 2979
[cm3]
Stroke/bore [mm] 89.6/84.0 89.6/84.0
Output˙˙at˙˙engine˙˙speed [kW]˙˙HP [220]˙˙300 [225]˙˙300
[rpm] 5800 5800
Torque˙˙at˙˙engine˙˙speed [Nm]˙˙lb-ft [407]˙˙300 [400]˙˙300
[rpm] 1400˙˙ ˙˙5000 1200˙˙ ˙˙5000
Compression˙˙ratio [µ] 10.2˙˙:˙˙1 10.2˙˙:˙˙1
Fuel˙˙grade ROZ˙˙95˙˙ ˙˙98 ROZ˙˙91˙˙ ˙˙98
Exhaust˙˙emission˙˙standard - ULEVII
Acceleration˙˙0 100˙˙km/h/62mph [s] 5.9/6.0 6.0/6.1
(Manual/automatic˙˙transmission)
2.2.2.˙˙Full˙˙load˙˙diagram
Compared˙˙to˙˙the˙˙predecessor,˙˙the˙˙outstanding˙˙feature˙˙of˙˙the˙˙N55˙˙engine˙˙is˙˙its˙˙lower˙˙fuel˙˙consumption
with˙˙equivalent˙˙power˙˙and˙˙torque˙˙data.
7
F10˙˙Powertrain
2.˙˙Engines
Full˙˙load˙˙diagram,˙˙E60˙˙535i˙˙with˙˙N54B30O0˙˙engine˙˙compared˙˙to˙˙F10˙˙535i˙˙with˙˙N55B30M0˙˙engine.
8
F10˙˙Powertrain
2.˙˙Engines
2.3.˙˙N63˙˙engine
N63˙˙engine
The˙˙N63˙˙engine˙˙is˙˙the˙˙successor˙˙of˙˙the˙˙N62˙˙engine˙˙and˙˙the˙˙world's˙˙first˙˙engine˙˙with˙˙optimized
package˙˙thanks˙˙to˙˙the˙˙placement˙˙of˙˙the˙˙turbochargers˙˙and˙˙the˙˙main˙˙catalytic˙˙converters.˙˙In˙˙order
to˙˙obtain˙˙performance˙˙goals˙˙with˙˙the˙˙optimum˙˙package˙˙and˙˙weight,˙˙the˙˙two˙˙turbochargers˙˙and˙˙the
catalytic˙˙converters˙˙have˙˙been˙˙placed˙˙in˙˙the˙˙engine˙˙V-space˙˙between˙˙the˙˙cylinder˙˙banks,˙˙which˙˙meant
reversing˙˙the˙˙positions˙˙of˙˙the˙˙intake˙˙and˙˙outlet˙˙ports.˙˙This˙˙arrangement˙˙allows˙˙short˙˙pipe˙˙lengths˙˙and
large˙˙cross-sections,˙˙which˙˙in˙˙turn˙˙minimizes˙˙the˙˙pressure˙˙losses˙˙on˙˙the˙˙intake˙˙and˙˙exhaust˙˙side.
Highlights
" Use˙˙across˙˙all˙˙series˙˙(E71/E72/F01/F02/F04/F07/F10)
" Twin˙˙turbochargers˙˙placed˙˙in˙˙the˙˙engine˙˙V-space
" Catalytic˙˙converters˙˙close˙˙to˙˙the˙˙engine
" Direct˙˙fuel˙˙injection˙˙piezo-electric˙˙injectors
" MSD85˙˙Digital˙˙Motor˙˙Electronics,˙˙liquid-cooled˙˙with˙˙FlexRay˙˙connection
" Indirect˙˙charge˙˙air˙˙cooling
9
F10˙˙Powertrain
2.˙˙Engines
2.3.1.˙˙Technical˙˙data
N62B48O1 N63B44O0
E60,˙˙550i F10,˙˙550i
Type V8 V8
Valves˙˙per˙˙cylinder 4 4
Engine˙˙control˙˙system ME9.2.3 MSD85
Displacement 4799 4395
[cm3]
Stroke/bore [mm] 88.3/93.0 88.3/89.0
Output˙˙at˙˙engine˙˙speed [kW]˙˙HP [270]˙˙367 [300]˙˙400
[rpm] 6300 5500˙˙ ˙˙6400
Torque˙˙at˙˙engine˙˙speed [Nm]˙˙lb-ft [490]˙˙361 [600]˙˙450
[rpm] 3400 1750˙˙ ˙˙4500
Compression˙˙ratio [µ] 10.5˙˙:˙˙1 10.0˙˙:˙˙1
Fuel˙˙grade ROZ˙˙91˙˙ ˙˙98 ROZ˙˙91˙˙ ˙˙98
Exhaust˙˙emission˙˙standard - ULEVII
Acceleration˙˙0 100˙˙km/h [s] 5.2/5.3 -/5.0
(Manual/automatic˙˙transmission)
2.3.2.˙˙Full˙˙load˙˙diagram
Compared˙˙to˙˙its˙˙naturally˙˙aspirated˙˙predecessor,˙˙the˙˙N62˙˙engine,˙˙an˙˙outstanding˙˙feature˙˙of˙˙the˙˙N63
engine˙˙is˙˙its˙˙significantly˙˙higher˙˙overall˙˙power˙˙and˙˙more˙˙ample˙˙torque˙˙curve˙˙due˙˙to˙˙twin˙˙turbocharging.
10
F10˙˙Powertrain
2.˙˙Engines
Full˙˙load˙˙diagram,˙˙E60˙˙550i˙˙with˙˙N62B48O1˙˙engine˙˙compared˙˙to˙˙F10˙˙550i˙˙with˙˙N63B44O0˙˙engine.
2.4.˙˙Engine˙˙type˙˙and˙˙engine˙˙identification
2.4.1.˙˙Engine˙˙type
In˙˙the˙˙technical˙˙documentation,˙˙the˙˙engine˙˙type˙˙is˙˙used˙˙to˙˙ensure˙˙the˙˙unambiguous˙˙identification˙˙of
engines.˙˙Frequently,˙˙however,˙˙only˙˙an˙˙abbreviation˙˙is˙˙used.˙˙This˙˙short˙˙form˙˙is˙˙used˙˙to˙˙assign˙˙an˙˙engine
to˙˙an˙˙engine˙˙family.
11
F10˙˙Powertrain
2.˙˙Engines
Position Meaning Index Explanation
1 Engine˙˙developer M,˙˙N BMW˙˙Group
P BMW˙˙Motorsport
S BMW˙˙M˙˙GmbH
W Third-party˙˙engines
2 Engine˙˙type 1 4-cylinder˙˙in-line˙˙engine˙˙(e.˙˙g.˙˙N12)
4 4-cylinder˙˙in-line˙˙engine˙˙(e.g.˙˙N43)
5 6-cylinder˙˙in-line˙˙engine˙˙(e.g.˙˙N55)
6 V8˙˙engine˙˙(e.g.˙˙N63)
7 V12˙˙engine˙˙(e.g.˙˙N74)
8 V10˙˙engine˙˙(e.g.˙˙S85)
3 Change˙˙of˙˙the˙˙engine 0 Engine˙˙block
block˙˙concept 1˙˙ ˙˙9 Changes,˙˙e.g.˙˙combustion˙˙process
4 Operating˙˙method B Gasoline,˙˙longitudinal˙˙installation
or˙˙fuel˙˙and, D Diesel,˙˙longitudinal˙˙installation
where˙˙applicable, H Hydrogen
installation˙˙position
5˙˙+˙˙6 Displacement˙˙in˙˙1/10 30 3.0˙˙liters
liter
7 Power˙˙class K Smallest
U Lower
M Center
O Upper˙˙(standard)
T Top
S Super
8 Revision˙˙relevant˙˙to 0 New˙˙development
approval 1˙˙ ˙˙9 Revision
2.4.2.˙˙Engine˙˙identification
To˙˙ensure˙˙clear˙˙identification˙˙and˙˙classification,˙˙the˙˙engines˙˙have˙˙an˙˙identification˙˙mark˙˙on˙˙the
crankcase.
This˙˙engine˙˙identification˙˙is˙˙also˙˙necessary˙˙for˙˙approval˙˙by˙˙authorities.˙˙The˙˙N55˙˙engine˙˙is
accompanied˙˙by˙˙a˙˙further˙˙development˙˙of˙˙this˙˙identification˙˙and˙˙a˙˙reduction˙˙from˙˙the˙˙former˙˙eight
characters˙˙to˙˙seven˙˙characters.˙˙The˙˙engine˙˙number˙˙is˙˙located˙˙on˙˙the˙˙engine˙˙below˙˙the˙˙engine
identification.˙˙This˙˙consecutive˙˙number,˙˙in˙˙conjunction˙˙with˙˙the˙˙engine˙˙identification,˙˙permits˙˙unique
identification˙˙of˙˙each˙˙individual˙˙engine.
12
F10˙˙Powertrain
2.˙˙Engines
Position Meaning Index Explanation
1 Engine˙˙developer M,˙˙N BMW˙˙Group
P BMW˙˙Motorsport
S BMW˙˙M˙˙GmbH
W Third-party˙˙engines
2 Engine˙˙type 1 4-cylinder˙˙in-line˙˙engine˙˙(e.˙˙g.˙˙N12)
4 4-cylinder˙˙in-line˙˙engine˙˙(e.g.˙˙N43)
5 6-cylinder˙˙in-line˙˙engine˙˙(e.g.˙˙N55)
6 V8˙˙engine˙˙(e.g.˙˙N63)
7 V12˙˙engine˙˙(e.g.˙˙N74)
8 V10˙˙engine˙˙(e.g.˙˙S85)
3 Change˙˙of˙˙the˙˙engine 0 Engine˙˙block
block˙˙concept 1˙˙ ˙˙9 Changes,˙˙e.g.˙˙combustion˙˙process
4 Operating˙˙method B Gasoline,˙˙longitudinal˙˙installation
or˙˙fuel˙˙and, D Diesel,˙˙longitudinal˙˙installation
where˙˙applicable, H Hydrogen
installation˙˙position
5˙˙+˙˙6 Displacement˙˙in˙˙1/10 30 3.0˙˙liters
liter
7 Type˙˙approval A Standard
requirements B˙˙ ˙˙Z Depending˙˙on˙˙requirements,˙˙e.g.˙˙ROZ87
(Changes˙˙that˙˙require
a˙˙new˙˙type˙˙approval)
13
F10˙˙Powertrain
3.˙˙Manual˙˙Transmission
3.1.˙˙Description
In˙˙the˙˙technical˙˙documentation,˙˙the˙˙transmission˙˙designation˙˙is˙˙used˙˙to˙˙ensure˙˙the˙˙clear˙˙identification
of˙˙transmissions.˙˙Frequently,˙˙however,˙˙only˙˙an˙˙abbreviations˙˙are˙˙used.˙˙Thus˙˙we˙˙frequently˙˙speak˙˙of˙˙the
K˙˙transmission˙˙or˙˙G˙˙transmission.˙˙For˙˙the˙˙correct˙˙designation,˙˙refer˙˙to˙˙the˙˙following˙˙table.
Position Meaning Index Explanation
1 Description G Transmission
2 Transmission˙˙type S Manual˙˙transmission
3 Number˙˙of˙˙gears 1˙˙ ˙˙9 Number˙˙of˙˙forward˙˙gears
4 Transmission˙˙type - Manual˙˙transmission
X Four-wheel˙˙drive˙˙with˙˙manual˙˙transmission
S Sequential˙˙manual˙˙transmission
W Four-wheel˙˙drive˙˙with˙˙sequential˙˙manual
D transmission
Y Twin-clutch˙˙gearbox
Four-wheel˙˙drive˙˙with˙˙twin-clutch˙˙gearbox
5˙˙+˙˙6 Transmission˙˙type 17 I˙˙transmission
26 D˙˙transmission
37 H˙˙transmission
45 K˙˙transmission
53 G˙˙transmission
7 Gear˙˙set B Gasoline˙˙engine˙˙gear˙˙ratio
D Diesel˙˙engine˙˙gear˙˙ratio˙˙(w)*
S Sport˙˙gear˙˙ratio
P Gasoline˙˙engine˙˙gear˙˙ratio˙˙overhauled
8 Manufacturer G Getrag
J Jatco
R GMPT
Z ZF
H In-house˙˙part
3.2.˙˙Variants
Model Engine Manual˙˙transmission
535i N55B30M0 K GS6-45BZ
550i N63B44O0 G GS6-53BZ
3.3.˙˙K˙˙manual˙˙transmission
The˙˙K˙˙manual˙˙transmission˙˙is˙˙a˙˙six-gear˙˙inline˙˙manual˙˙transmission˙˙in˙˙reduction˙˙gear˙˙design.
Highlights
14
F10˙˙Powertrain
3.˙˙Manual˙˙Transmission
" Six˙˙gears˙˙with˙˙optimized˙˙ratios
" Intermediate˙˙mounting
" Dry˙˙sump˙˙lubrication
" Fuel˙˙consumption˙˙reduction˙˙(-2 %˙˙compared˙˙to˙˙G˙˙manual˙˙transmission)
" Weight˙˙reduction˙˙(-11 kg˙˙compared˙˙to˙˙G˙˙manual˙˙transmission)
" Synchronization˙˙with˙˙carbon˙˙friction˙˙linings
" Use˙˙of˙˙life-time˙˙oil˙˙filling
" Zero-gear˙˙sensor˙˙for˙˙automatic˙˙engine˙˙start-stop˙˙function.
Instead˙˙of˙˙the˙˙G˙˙transmission˙˙used˙˙with˙˙the˙˙N63˙˙engine˙˙the˙˙smaller,˙˙lighter˙˙and˙˙more˙˙cost-efficient
K˙˙transmission˙˙is˙˙installed˙˙with˙˙the˙˙N55.˙˙The˙˙weight˙˙advantage˙˙is˙˙up˙˙to˙˙11˙˙kg.˙˙This˙˙transmission˙˙is
smaller˙˙and˙˙lighter˙˙due˙˙mainly˙˙to˙˙the˙˙intermediate˙˙mounting˙˙of˙˙the˙˙main˙˙shafts˙˙and˙˙a˙˙modified˙˙gear˙˙set
design.
Another˙˙advantage˙˙is˙˙the˙˙significantly˙˙improved˙˙shifting˙˙comfort˙˙and˙˙the˙˙low˙˙fuel˙˙consumption˙˙due˙˙to
low˙˙drag˙˙losses˙˙and˙˙high˙˙efficiency.
The˙˙shift˙˙quality˙˙is˙˙increased˙˙substantially˙˙by:
" Using˙˙a˙˙newly˙˙developed˙˙carbon˙˙friction˙˙lining˙˙in˙˙the˙˙synchronizer˙˙units
" A˙˙newly˙˙developed˙˙and˙˙very˙˙low-friction˙˙gearshift
" The˙˙low˙˙drag˙˙loss˙˙of˙˙the˙˙gear˙˙set
" Limiting˙˙excessive˙˙shift˙˙travel
15
F10˙˙Powertrain
3.˙˙Manual˙˙Transmission
K ˙˙6˙˙speed˙˙manual˙˙transmission˙˙(GS6-45BZ)
Index Explanation
1 Oil˙˙pump˙˙with˙˙pressure˙˙relief˙˙valve
2 Oil˙˙filter
3 Oil˙˙injector˙˙pipe
To˙˙keep˙˙the˙˙drag˙˙loss˙˙low,˙˙dry˙˙sump˙˙lubrication˙˙is˙˙used˙˙for˙˙the˙˙first˙˙time.˙˙Compared˙˙to˙˙conventional
splash˙˙lubrication,˙˙this˙˙prevents˙˙the˙˙gear˙˙set˙˙from˙˙splashing˙˙about˙˙in˙˙the˙˙oil˙˙sump,˙˙which˙˙causes
losses.˙˙An˙˙additional˙˙decrease˙˙in˙˙losses˙˙is˙˙attained˙˙with˙˙the˙˙use˙˙of˙˙redesigned˙˙radial˙˙shaft˙˙seals.
3.3.1.˙˙Intermediate˙˙mounting
In˙˙manual˙˙transmissions˙˙with˙˙reduction˙˙gear˙˙design,˙˙the˙˙main˙˙shaft˙˙is˙˙pushed˙˙away˙˙from˙˙the
counter˙˙shaft˙˙by˙˙the˙˙gearing˙˙forces.˙˙This˙˙causes˙˙a˙˙deviation˙˙of˙˙the˙˙ideal˙˙gear˙˙contact˙˙pattern,˙˙which
substantially˙˙impairs˙˙the˙˙strength˙˙of˙˙the˙˙gears˙˙and˙˙causes˙˙noise.
Therefore,˙˙in˙˙the˙˙K˙˙transmission,˙˙the˙˙location˙˙of˙˙the˙˙countershaft˙˙significantly˙˙restricts˙˙the˙˙shafts˙˙from
bending.˙˙In˙˙this˙˙way,˙˙higher˙˙torque˙˙can˙˙be˙˙transmitted,˙˙compared˙˙to˙˙conventional˙˙transmissions,˙˙while
at˙˙the˙˙same˙˙time˙˙reducing˙˙gear˙˙noise.
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3.˙˙Manual˙˙Transmission
3.3.2.˙˙Dry˙˙sump˙˙lubrication
Conventional˙˙manual˙˙transmissions˙˙normally˙˙use˙˙splash˙˙lubrication.˙˙During˙˙this˙˙process,˙˙the˙˙gears
on˙˙the˙˙countershaft˙˙dip˙˙into˙˙the˙˙transmission˙˙oil˙˙and˙˙distribute˙˙it˙˙throughout˙˙the˙˙transmission˙˙in˙˙a
disorderly˙˙manner˙˙as˙˙the˙˙gear˙˙set˙˙rotates.˙˙Often,˙˙additional˙˙equipment˙˙such˙˙as˙˙oil˙˙partition˙˙plates˙˙or˙˙oil
grooves˙˙are˙˙required˙˙to˙˙bring˙˙the˙˙oil˙˙to˙˙the˙˙gears,˙˙the˙˙bearings˙˙or˙˙to˙˙the˙˙synchronizers.
In˙˙the˙˙K˙˙transmission,˙˙a˙˙dry˙˙sump˙˙type˙˙lubrication˙˙system˙˙is˙˙used˙˙(for˙˙the˙˙first˙˙time˙˙on˙˙a˙˙BMW).
The˙˙dry˙˙sump˙˙system˙˙consists˙˙of:
" An˙˙oil˙˙filter
" An˙˙oil˙˙pump
" A˙˙fuel˙˙injection˙˙pipe
Using˙˙less˙˙energy˙˙than˙˙a˙˙splash˙˙lubrication˙˙system,˙˙the˙˙dry˙˙sump˙˙system˙˙lubricates˙˙the˙˙gears,˙˙the
bearings˙˙and˙˙the˙˙synchronizers˙˙in˙˙a˙˙more˙˙targeted˙˙manner.˙˙The˙˙controlled˙˙oil˙˙flow˙˙also˙˙results˙˙in˙˙an
improved˙˙temperature˙˙balance,˙˙as˙˙the˙˙cooling˙˙air˙˙is˙˙routed˙˙directly˙˙from˙˙the˙˙vehicle˙˙underbody˙˙to˙˙the
filter˙˙intake˙˙opening.˙˙This˙˙provides˙˙continuous˙˙cooling˙˙of˙˙the˙˙transmission˙˙oil.
The˙˙oil˙˙filter˙˙also˙˙improves˙˙the˙˙oil˙˙quality˙˙and˙˙thus˙˙the˙˙load-carrying˙˙capacity˙˙of˙˙the˙˙gear˙˙train.
3.3.3.˙˙Synchronization
In˙˙first˙˙and˙˙second˙˙gear,˙˙triple-cone˙˙synchronizers˙˙are˙˙used.˙˙In˙˙the˙˙other˙˙gears,˙˙single-cone
synchronizers˙˙are˙˙installed.˙˙To˙˙improve˙˙shift˙˙quality,˙˙these˙˙are˙˙equipped˙˙with˙˙a˙˙newly˙˙developed˙˙carbon
friction˙˙lining.
3.3.4.˙˙Connection˙˙dimensions
The˙˙connection˙˙dimensions˙˙for˙˙the˙˙transmission˙˙mounting˙˙have˙˙been˙˙taken˙˙over˙˙from˙˙previous˙˙series
applications.˙˙In˙˙this˙˙way,˙˙the˙˙integration˙˙into˙˙the˙˙vehicle˙˙environment˙˙has˙˙been˙˙simplified˙˙greatly,˙˙as˙˙it˙˙is
possible˙˙continue˙˙using˙˙existing˙˙peripherals.
3.3.5.˙˙Technical˙˙data
K˙˙transmission
GS6-45BZ
Engine˙˙applications˙˙in˙˙the˙˙F10 N55B30M0
Maximum˙˙drive˙˙torque [Nm] 470
Axle˙˙distance [mm] 80
Weight˙˙with˙˙oil [kg] 43.3
Transmission˙˙length [mm] 646
1st˙˙gear˙˙ratio 4.110
2nd˙˙gear˙˙ratio 2.315
3rd˙˙gear˙˙ratio 1.542
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F10˙˙Powertrain
3.˙˙Manual˙˙Transmission
K˙˙transmission
GS6-45BZ
4th˙˙gear˙˙ratio 1.179
5th˙˙gear˙˙ratio 1.000
6th˙˙gear˙˙ratio 0.846
Reverse˙˙gear˙˙ratio 3.727
Final˙˙drive˙˙ratio 3.231
3.4.˙˙G˙˙manual˙˙transmission
The˙˙G˙˙manual˙˙transmission˙˙is˙˙of˙˙the˙˙highest˙˙precision,˙˙operational˙˙smoothness˙˙and˙˙shifting˙˙comfort.
Due˙˙to˙˙the˙˙total˙˙spread,˙˙the˙˙transmission˙˙offers˙˙the˙˙best˙˙possible˙˙utilization˙˙of˙˙the˙˙engine˙˙performance.
The˙˙short˙˙shift˙˙travel˙˙of˙˙55˙˙mm˙˙contributes˙˙to˙˙the˙˙transmission˙˙shifting˙˙comfort.
Highlights
" Slip˙˙suppression˙˙to˙˙prevent˙˙clutch˙˙slipping
" Start-up˙˙speed˙˙limitation˙˙to˙˙minimize˙˙the˙˙friction˙˙work˙˙of˙˙the˙˙clutch˙˙(in˙˙conjunction˙˙with˙˙N63
engine)
" External˙˙transmission˙˙oil˙˙cooling˙˙(in˙˙conjunction˙˙with˙˙N63˙˙engine)
" Use˙˙of˙˙long-term˙˙oil.
To˙˙prevent˙˙potential˙˙overloading˙˙of˙˙the˙˙clutch˙˙a˙˙slip˙˙suppression˙˙system˙˙is˙˙used.˙˙This˙˙system˙˙enables
acceleration˙˙under˙˙full˙˙load˙˙without˙˙the˙˙possibility˙˙of˙˙the˙˙clutch˙˙slipping.˙˙A˙˙speed˙˙sensor˙˙on˙˙the
intermediate˙˙shaft˙˙and˙˙the˙˙crankshaft˙˙sensor˙˙calculate˙˙the˙˙clutch˙˙slip;˙˙if˙˙necessary,˙˙the˙˙engine˙˙torque
can˙˙be˙˙reduced˙˙to˙˙limit˙˙clutch˙˙slip.
A˙˙start-up˙˙speed˙˙limitation˙˙is˙˙used˙˙with˙˙the˙˙N63˙˙engine.˙˙This˙˙limits˙˙the˙˙engine˙˙speed˙˙while˙˙the˙˙vehicle
is˙˙at˙˙a˙˙standstill,˙˙depending˙˙on˙˙the˙˙mode˙˙of˙˙the˙˙Dynamic˙˙Stability˙˙Control˙˙DSC,˙˙to˙˙3500 5500˙˙rpm.
This˙˙prevents˙˙a˙˙overheating˙˙of˙˙the˙˙drive˙˙plate˙˙during˙˙the˙˙starting˙˙process.
The˙˙external˙˙transmission˙˙oil˙˙cooling˙˙is˙˙used˙˙with˙˙the˙˙N63˙˙engine,˙˙guarantees˙˙reliable˙˙operation,
even˙˙under˙˙extreme˙˙conditions.˙˙A˙˙transmission˙˙oil˙˙pump˙˙pumps˙˙the˙˙transmission˙˙oil˙˙through˙˙the
transmission˙˙oil˙˙cooler.˙˙A˙˙transmission˙˙oil˙˙temperature˙˙sensor˙˙is˙˙installed˙˙in˙˙the˙˙transmission,˙˙which
switches˙˙the˙˙transmission˙˙oil˙˙pump˙˙on˙˙(transmission˙˙oil˙˙temperature > 130 °C/266°F)˙˙and˙˙off
(transmission˙˙oil˙˙temperature < 110 °C/230°F).
3.4.1.˙˙Technical˙˙data
G˙˙transmission
GS6-53BZ
Engine˙˙applications˙˙in˙˙the˙˙F10 N63B44O0
Maximum˙˙drive˙˙torque [Nm] 600
Axle˙˙distance [mm] 94.96
Weight˙˙with˙˙oil [kg] 57.6
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F10˙˙Powertrain
3.˙˙Manual˙˙Transmission
G˙˙transmission
GS6-53BZ
Oil˙˙quantity [l] 2.2
Transmission˙˙length [mm] 669
1st˙˙gear˙˙ratio 4.055
2nd˙˙gear˙˙ratio 2.396
3rd˙˙gear˙˙ratio 1.582
4th˙˙gear˙˙ratio 1.192
5th˙˙gear˙˙ratio 1.000
6th˙˙gear˙˙ratio 0.872
Reverse˙˙gear˙˙ratio 3.677
Final˙˙drive˙˙ratio 3.08
3.5.˙˙Gearshift˙˙mechanism
F10˙˙Gear˙˙selector˙˙switch
Highlights
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F10˙˙Powertrain
3.˙˙Manual˙˙Transmission
" Further˙˙development˙˙of˙˙the˙˙typical˙˙BMW˙˙gearshift
" Improved˙˙shifting˙˙force˙˙curve˙˙and˙˙shifting˙˙precision
" New˙˙design˙˙of˙˙the˙˙gearshift˙˙arm,˙˙matched˙˙to˙˙the˙˙innovative˙˙center˙˙console˙˙design
" New,˙˙sporty˙˙design˙˙with˙˙one-piece˙˙gearshift˙˙lever˙˙knob˙˙with˙˙leather˙˙cover
" New˙˙leather˙˙material˙˙"Dakota"˙˙with˙˙improved˙˙durability˙˙and˙˙appearance
" Ergonomically˙˙matched˙˙center˙˙console˙˙and˙˙gearshift˙˙lever˙˙knob˙˙position
" Gearshift˙˙rod˙˙is˙˙orbital˙˙riveted˙˙rather˙˙than˙˙welded.
The˙˙gearshift˙˙rod˙˙direct˙˙connection˙˙to˙˙the˙˙transmission˙˙has˙˙been˙˙maintained.
20
F10˙˙Powertrain
4.˙˙Automatic˙˙Transmission
4.1.˙˙Description
In˙˙the˙˙technical˙˙documentation,˙˙the˙˙transmission˙˙designation˙˙is˙˙used˙˙to˙˙ensure˙˙the˙˙unambiguous
identification˙˙of˙˙the˙˙transmission.˙˙Frequently,˙˙however,˙˙only˙˙an˙˙abbreviation˙˙is˙˙used.˙˙This˙˙short˙˙form˙˙is
used˙˙to˙˙assign˙˙a˙˙transmission˙˙to˙˙a˙˙transmission˙˙family.˙˙For˙˙example,˙˙we˙˙often˙˙talk˙˙about˙˙the˙˙GA8HP
transmission˙˙family,˙˙which˙˙consists˙˙of˙˙several˙˙transmissions˙˙such˙˙as˙˙the˙˙GA8HP45Z,˙˙the˙˙GA8HP70Z
and˙˙the˙˙GA8HP90Z.
Position Meaning Index Explanation
1 Description G Transmission
2 Transmission˙˙type A Automatic˙˙transmission
3 Number˙˙of˙˙gears 6 Six˙˙forward˙˙gears
8 Eight˙˙forward˙˙gears
4 Transmission˙˙type HP Hydraulic˙˙planetary˙˙gear˙˙train
L Designation˙˙by˙˙GMPT
R Designation˙˙by˙˙GMPT
5˙˙+˙˙6 Transferable˙˙torque 19 300˙˙Nm˙˙gasoline˙˙engine
26 600˙˙Nm˙˙gasoline˙˙engine
32 720˙˙Nm˙˙gasoline˙˙engine
45˙˙(ZF) 450˙˙Nm˙˙gasoline˙˙engine,˙˙500˙˙Nm˙˙diesel
45˙˙(GMPT) engine
70 350˙˙Nm˙˙gasoline˙˙engine
90 700˙˙Nm˙˙gasoline˙˙engine˙˙and˙˙diesel˙˙engine
390 900˙˙Nm˙˙gasoline˙˙engine
390˙˙Nm,˙˙4th˙˙gear˙˙410 Nm˙˙gasoline˙˙engine
7 Manufacturer G Getrag
J Jatco
R GMPT
Z ZF
H In-house˙˙part
4.2.˙˙Variants
Model Engine Transmission Torque˙˙converter
528i N52B30O2 GA8HP45Z NW235TTD
535i N55B30M0 GA8HP45Z NW235TTD
550i N63B44O0 GA8HP70Z NW250TTD
4.3.˙˙GA8HP˙˙transmission
In˙˙the˙˙F10,˙˙the˙˙new˙˙automatic˙˙transmissions˙˙GA8HP45Z˙˙and˙˙GA8HP70Z˙˙with˙˙eight˙˙forward˙˙gears˙˙and
one˙˙reverse˙˙gear˙˙is˙˙used.
21
F10˙˙Powertrain
4.˙˙Automatic˙˙Transmission
Highlights
" Significantly˙˙enhanced˙˙gearshifts˙˙spontaneity
" Greater˙˙driving˙˙and˙˙shifting˙˙comfort˙˙as˙˙a˙˙result˙˙of˙˙a˙˙closer˙˙gear˙˙ratio
" Higher˙˙precision˙˙control˙˙of˙˙the˙˙converter˙˙lockup˙˙clutch˙˙at˙˙low˙˙engine˙˙loads
" High˙˙power˙˙transmission˙˙of˙˙the˙˙converter˙˙lock-up˙˙clutch
" Reduced˙˙fuel˙˙consumption˙˙(-5˙˙to˙˙-6˙˙%).
The˙˙GA8HP45Z˙˙and˙˙GA8HP70Z˙˙are˙˙new˙˙developments˙˙and˙˙will˙˙gradually˙˙replace˙˙the˙˙established
6-speed˙˙automatic˙˙transmissions˙˙GA6HP19Z˙˙TU˙˙and˙˙GA6HP26Z˙˙TU.˙˙The˙˙overall˙˙gear˙˙ratio˙˙has
been˙˙increased˙˙from˙˙6.04˙˙to˙˙7.07;˙˙the˙˙gear˙˙to˙˙gear˙˙ratios˙˙have˙˙are˙˙now˙˙closer,˙˙thus˙˙also˙˙reducing˙˙the
differences˙˙in˙˙speed˙˙when˙˙shifting˙˙gear.˙˙The˙˙weight˙˙of˙˙the˙˙transmission˙˙has˙˙been˙˙reduced˙˙significantly
using˙˙a˙˙plastic˙˙oil˙˙pan˙˙and˙˙other˙˙light˙˙weight˙˙components.
The˙˙Electronic˙˙Transmission˙˙Control˙˙(EGS)˙˙control˙˙unit˙˙is˙˙integrated˙˙in˙˙the˙˙control˙˙unit˙˙framework˙˙of
the˙˙electronic˙˙immobilizer˙˙EWS.˙˙This˙˙provides˙˙better˙˙protection˙˙against˙˙theft.
The˙˙operation˙˙takes˙˙place˙˙using˙˙the˙˙gear˙˙selector˙˙switch˙˙or˙˙the˙˙shift˙˙paddles˙˙(option˙˙2TB,˙˙sport
automatic˙˙transmission,˙˙via˙˙the˙˙steering˙˙column˙˙switch˙˙cluster SZL).
In˙˙the˙˙converter,˙˙second-generation˙˙mechanical˙˙torsional˙˙vibration˙˙dampers˙˙are˙˙used:
" Turbine˙˙torsional˙˙vibration˙˙damper˙˙(TTD)
" Double-damper˙˙converter˙˙(ZDW)˙˙(Used˙˙on˙˙diesel˙˙X5˙˙and˙˙E90˙˙models).
22
F10˙˙Powertrain
4.˙˙Automatic˙˙Transmission
The˙˙function˙˙and˙˙structure˙˙of˙˙the˙˙torque˙˙converter˙˙are˙˙described˙˙in˙˙the˙˙ E70˙˙Automatic˙˙transmission
training˙˙material˙˙available˙˙on˙˙TIS˙˙and˙˙ICP.
The˙˙vibration˙˙isolation˙˙reduces˙˙the˙˙proportion˙˙of˙˙slip˙˙on˙˙the˙˙converter˙˙lockup˙˙clutch˙˙and˙˙enables˙˙a
larger˙˙operating˙˙range˙˙with˙˙the˙˙converter˙˙lockup˙˙clutch˙˙closed.˙˙This˙˙reduces˙˙the˙˙fuel˙˙consumption˙˙by
5%˙˙to˙˙6%˙˙in˙˙the˙˙consumption˙˙cycle˙˙(KV01)˙˙compared˙˙to˙˙the˙˙TU˙˙6-speed˙˙automatic˙˙transmission˙˙used
until˙˙now.
4.3.1.˙˙Technical˙˙data
GA8HP45Z GA8HP70Z
Maximum˙˙power˙˙(with˙˙gasoline˙˙engines) [kW] 250 380
Maximum˙˙power˙˙(with˙˙diesel˙˙engines) [kW] 180 240
Maximum˙˙torque˙˙(with˙˙gasoline˙˙engines) [Nm] 450 700
Maximum˙˙torque˙˙(with˙˙diesel˙˙engines) [Nm] 500 700
Maximum˙˙permitted˙˙engine˙˙speed,˙˙1st˙˙-˙˙7th [rpm] 7200
gear
Maximum˙˙permitted˙˙engine˙˙speed,˙˙8th˙˙gear [rpm] 5700
Maximum˙˙permitted˙˙engine˙˙speed,˙˙reverse˙˙gear [rpm] 3500
1st˙˙gear˙˙ratio 4.714
2nd˙˙gear˙˙ratio 3.143
3rd˙˙gear˙˙ratio 2.106
4th˙˙gear˙˙ratio 1.667
5th˙˙gear˙˙ratio 1.258
6th˙˙gear˙˙ratio 1.000
7th˙˙gear˙˙ratio 0.839
8th˙˙gear˙˙ratio 0.667
Reverse˙˙gear˙˙ratio 3.295 3.317
4.4.˙˙Gear˙˙selector˙˙switch
The˙˙F10˙˙has˙˙the˙˙familiar˙˙gear˙˙selector˙˙switch˙˙from˙˙the˙˙F01.
23
F10˙˙Powertrain
4.˙˙Automatic˙˙Transmission
F10˙˙Gear˙˙selector˙˙switch
24
F10˙˙Powertrain
5.˙˙Rear˙˙Axle˙˙Differential
5.1.˙˙Description
Position Meaning Index Explanation
1˙˙ ˙˙3 Transmission˙˙type HAG Rear˙˙axle˙˙differential
4˙˙ ˙˙6 Size 205 Crown˙˙wheel˙˙pitch˙˙circle˙˙Ċ˙˙in˙˙mm
225
7 Housing A aluminum
8 Transmission˙˙type L Low˙˙friction
5.2.˙˙Versions
Model Transmission Rear˙˙axle˙˙differential Gear˙˙ratio˙˙i
528i GA8HP45Z Rear˙˙diff˙˙205AL 3.385
535i GS6-45BZ Rear˙˙diff˙˙205AL 3.231
535i GA8HP45Z Rear˙˙diff˙˙205AL 3.077
550i GS6-53BZ HAG˙˙225AL 3.08
550i GA8HP70Z HAG˙˙225AL 2.813
5.3.˙˙Rear˙˙axle˙˙final˙˙drive˙˙lightweight˙˙construction
Like˙˙the˙˙F01,˙˙the˙˙F07˙˙has˙˙the˙˙new˙˙HAG˙˙205AL˙˙and˙˙HAG˙˙225AL˙˙rear˙˙axle˙˙final˙˙drives˙˙with˙˙aluminum
housing.
F10˙˙Rear˙˙axle˙˙final˙˙drive˙˙lightweight˙˙construction
Highlights:
" Lower˙˙weight
Rear˙˙axle˙˙differential˙˙205AL:˙˙23.6˙˙kg˙˙(incl.˙˙oil)
25
F10˙˙Powertrain
5.˙˙Rear˙˙Axle˙˙Differential
Rear˙˙axle˙˙differential˙˙225AL:˙˙29.7˙˙kg˙˙(incl.˙˙oil)
" Greater˙˙power˙˙transmission
" Better˙˙efficiency
26
F10˙˙Powertrain
6.˙˙Driveshaft˙˙and˙˙Axle˙˙Shafts
6.1.˙˙Driveshaft
6.1.1.˙˙Overview
Each˙˙engine-transmission˙˙configuration˙˙uses˙˙a˙˙steel˙˙driveshaft˙˙that˙˙is˙˙specially˙˙adapted˙˙to˙˙the
individual˙˙torque˙˙requirement.
The˙˙main˙˙focal˙˙points˙˙in˙˙the˙˙design˙˙of˙˙the˙˙driveshaft˙˙of˙˙the˙˙F10˙˙were˙˙the˙˙torque˙˙transfer˙˙and˙˙comfort
requirements˙˙with˙˙minimal˙˙acoustics˙˙and˙˙vibrations.
The˙˙joints,˙˙shaft˙˙divisions˙˙and˙˙shaft˙˙diameters˙˙have˙˙been˙˙specified˙˙in˙˙such˙˙a˙˙way˙˙that˙˙they˙˙do˙˙not˙˙pass
on˙˙any˙˙disruptive˙˙noises˙˙or˙˙vibrations˙˙to˙˙the˙˙connection˙˙points˙˙at˙˙the˙˙body.
On˙˙the˙˙F10,˙˙the˙˙driveshafts˙˙are˙˙connected˙˙to˙˙the˙˙automatic˙˙transmission˙˙and˙˙rear˙˙differentials
exclusively˙˙by˙˙means˙˙of˙˙flexible˙˙discs.˙˙This˙˙minimizes˙˙the˙˙high-frequency˙˙tooth˙˙meshing˙˙noises˙˙on˙˙the
rear˙˙differential.
F10˙˙Propeller˙˙shaft
27
F10˙˙Powertrain
6.˙˙Driveshaft˙˙and˙˙Axle˙˙Shafts
Index Explanation
1 Flexible˙˙disc˙˙(on˙˙automatic˙˙or˙˙manual˙˙transmission)
2 Center˙˙bearing
3 Flexible˙˙disc˙˙(on˙˙rear˙˙axle˙˙differential)
4 Push-fit˙˙connection
5 Universal˙˙joint
6 Slide˙˙piece˙˙connection
7 Crash˙˙function
6.1.2.˙˙Crash˙˙function
The˙˙driveshaft˙˙absorbs˙˙some˙˙of˙˙the˙˙impact˙˙energy˙˙in˙˙the˙˙event˙˙of˙˙a˙˙head-on˙˙collision.˙˙Improvements
have˙˙been˙˙made˙˙to˙˙the˙˙properties˙˙of˙˙this˙˙crash˙˙function,˙˙which˙˙are˙˙integrated˙˙into˙˙the˙˙front˙˙driveshaft
tube.˙˙The˙˙compression˙˙force˙˙under˙˙which˙˙the˙˙front˙˙driveshaft˙˙tube˙˙is˙˙meant˙˙to˙˙deform˙˙has˙˙been
further˙˙reduced˙˙with˙˙no˙˙effect˙˙on˙˙torque˙˙transfer˙˙capability.
6.2.˙˙Axle˙˙Shafts
6.2.1.˙˙Description
Position Meaning Index Explanation
1˙˙+˙˙2 Joint˙˙type VL VL˙˙disc˙˙joint
3˙˙ ˙˙7 Description 2600i Identification˙˙of˙˙the˙˙size/power˙˙transmission
3300i
4100i
6.2.2.˙˙Versions
Model Transmission Rear˙˙axle˙˙differential Output˙˙shaft
528i GA8HP45Z Rear˙˙diff˙˙205AL VL-2600i
535i GS6-45BZ Rear˙˙diff˙˙205AL VL-3300i
535i GA8HP45Z Rear˙˙diff˙˙205AL VL-3300i
550i GS6-53BZ HAG˙˙225AL VL-4100i
550i GA8HP70Z HAG˙˙225AL VL-3300i
28
F10˙˙Powertrain
6.˙˙Driveshaft˙˙and˙˙Axle˙˙Shafts
6.2.3.˙˙Overview
F10˙˙Output˙˙shaft
The˙˙F10˙˙has˙˙output˙˙shafts˙˙inserted˙˙at˙˙the˙˙wheel˙˙and˙˙axle˙˙differential˙˙ends.
The˙˙design˙˙of˙˙the˙˙journal˙˙at˙˙the˙˙rear˙˙axle˙˙differential˙˙end˙˙depends˙˙on˙˙the˙˙size˙˙of˙˙the˙˙rear˙˙axle
differential.˙˙The˙˙journal˙˙at˙˙the˙˙wheel˙˙hub˙˙end˙˙comes˙˙in˙˙only˙˙the˙˙one˙˙size.
Due˙˙to˙˙the˙˙position˙˙of˙˙the˙˙rear˙˙axle˙˙differential,˙˙the˙˙axle˙˙shafts˙˙on˙˙the˙˙left˙˙and˙˙right˙˙have˙˙different˙˙overall
lengths.
The˙˙shaft˙˙between˙˙the˙˙two˙˙joints˙˙is˙˙designed˙˙as˙˙a˙˙torsionally˙˙rigid˙˙hollow˙˙shaft.
29
Bayerische˙˙Motorenwerke˙˙Aktiengesellschaft
Händlerqualifizierung˙˙und˙˙Training
Röntgenstraße˙˙7
85716˙˙Unterschleißheim,˙˙Germany
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