Initial Print Date: 03/06
Table of Contents
Subject
Page
E85 Life Cycle Impulse (LCI)
Revision Date:
2
E85 Life Cycle Impulse
E85 Life Cycle Impulse
Model: Z4
Production: from March 2006
After completion of this module you will be able to:
• Understand the changes made to the E85 starting March production
The E85 LCI (Life Cycle Impulse) represents a redesigned E85 (Z4). This vehicle will be
introduced to the market in March 2006.
2 model variants will be available:
• Z4 3.0i with the N52B30 UL engine, 215 bhp
• Z4 3.0si with the N52B30 OL engine, 255 bhp
On the outside, the redesigning measures are noticeable by the modified front and rear
as well as the new light assemblies.
On the inside, new upholstery colors (Montego blue, black and saddle brown) as well as
the higher-grade decorative trim (brushed aluminium, aluminium cirrus and dark poplar
grain) keep in line with the new design.
A higher-grade interior finish such as the rollbar and air conditioning controls are also new.
3
E85 Life Cycle Impulse
Introduction
4
E85 Life Cycle Impulse
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Automatic transmission
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Weight distribution, front/rear, %:
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magnesium/aluminum composite
construction, Valvetronic variable intake-valve lift
& Double
VANOS
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steplessly variable intake-& exhaust-valve timing
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Compression ratio
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Power @ rpm, hp
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Torque @ rpm, lb-ft.
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Engine-management system
MSV70
with knock control (2 sensors);
Valvetronic
, variable valve
timing, electronic throttle system, engine cooling & other functions
included in control strategy
1
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Manual transmission
Getrag I, 6-speed
Getrag H, 6-speed
Ratios: 1st
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2nd
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Technical Data
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Final drive ratio
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Automatic transmission
ZF 6 HP 19, 6-speed
1
Ratios: 1st
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2nd
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3rd
1.52:1
1
4th
1.14:1
1
5th
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6th
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Reverse
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Final drive ratio
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cushions, coil springs, twin-tube gas-pressure shock absorbers,
anti-roll bar; aluminum thrust plate & strut-dome braces
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link of cast aluminum), coil springs, twin-tube gas-pressure shock
absorbers, anti-roll, steel thrust plate & V-brace
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Turning circle, ft.
32.2
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4-wheel disc brakes, vacuum-assisted:
Diameter, front, mm/in.
300/11.8
(ventilated)
325/12.8
(ventilated)
Diameter, rear, mm/in.
294/11.6 (ventilated)
294/11.6 (ventilated)
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17 x 8.0 front/17 x 8.5 rear
(ZSP)
18 x 8.0 front/18 x 8.5 rear (ZSP)
Run-flat tires (standard)
225/45R-17 W-rated
4
225/45R-17 W-rated
4
Run-flat tires (optional)
225/45R-17 front/
225/40R-18 front/
245/40R-17 rear
4
255/35R-18 rear
4
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Dynamic Traction Control, electronic brake proportioning, antilock
braking (ABS), cornering/braking stability enhancement, Dynamic
Brake Control,
Brake Fade Compensation, Brake Standby, Brake
Drying & Start-up Assistant
Performance data
Acceleration, 0-60 mph, sec.
5
:
Manual transmission
6
.
5
2
.
6
Automatic transmission
7
.
5
6
.
6
Top speed, mph
6
Manual transmission
5
5
1
9
4
1
Automatic transmission
5
5
1
9
4
1
Fuel economy, EPA est. MPG, city/highway:
/
0
2
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9
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2
1 - Specification applies to both models.
2 - Softtop lowered/raised.
3 - VANOS =
VAriable NOckenwellen
Steuerung = variable camshaft control,
or variable valve timing.
4 - Due to low-profile tires, please note:
Wheels, tires and suspension parts
are more susceptible to road hazard
and consequential damages. Z4
models are not equipped with a spare
tire and wheel. Performance tires are
not recommended for driving in snow
and ice conditions.
5 - BMW AG test results. Actual acceler-
ation results may vary depending on
specification of vehicle; road and
environmental conditions; testing
procedures and driving style. These
results should be used for comparison
only, and verification should not be
attempted on public roads. BMW urges
you to obey all posted speed limits
and to please wear your safety belt
at all times.
6 - Electronically limited.
ZSP – Sport Package
5
E85 Life Cycle Impulse
6
E85 Life Cycle Impulse
Body
The outer skin panel components of the body have been redesigned. As a result, the
vehicle features a new front apron with black moulding and more accentuated edges.
The mounting arrangement of the front bumper cover, however, remains the same.
Likewise, the kidney grills have also been modified but with the same mounting arrange-
ment.
The horizontally integrated fog lights are a new development for the LCI.
The front headlights are completely new and integrate corona rings and white direction
indicator lamps.
Geometrically, the halogen headlight remains unchanged. However, on the inner of the
front direction indicator lamps is dimmed as the marker light in the same way as the
outer direction indicator lamp was previously used.
The xenon headlamp has been modified. The halogen high beam light has been elimi-
nated. The flash to pass feature as well as high beam illumination is the responsibility of
the bi-xenon lamp/shutter.
Close-up of Front
7
E85 Life Cycle Impulse
Index
Explanation
1
Light Source for Corona Ring
2
Reflector
3
Headlight Housing
4
Light Filter for Corona Ring(Blue Tint)
5
Cover
6
Lens
NOTES
The headlight features a corona ring. There is a blue filter between the light source and
the corona ring. This filter only allows blue light to pass through, thus giving the corona
ring a similar color to the bi-xenon headlight.
The rear bumper cover now has a second integrated lip (design).
The tail light cluster has been modified and features a new design. There is only one rear
fog light.
The complete tail light cluster must be removed in order to replace a defective bulb in the
rear fog light.
The area illuminated by the brake lights increases as the braking force increases (brake
force display).
The modifications in this area are further enhanced by additional features such as larger
diameter exhaust tail pipes (chrome-plated on the Z4 3.0si) and new rim design.
8
E85 Life Cycle Impulse
Index
Explanation
1
Rear fog light/brake force display
2
Reversing light
3
Reflector
4
Brake force display/tail light LED
5
Brake light
6
Direction indicator light
9
E85 Life Cycle Impulse
The E85 LCI will be available with the two new generation six cylinder engines already in
production and use on our vehicles. The two vehicle variants are known as:
• Z4 3.0i 215 bhp (N52B30 UL))
• Z4 3.0si 255 bhp (N52B30 OL)
With the noticeable power boost provided by all 6-cylinder engines, the performance val-
ues of the E85 LCI are distinctly above those of the competition while fuel consumption
figures remain lower.
All E85 LCI are equipped with a 6-speed gearbox. The 3.0si and the 2.5si are optionally
available with an automatic gearbox and gearshift paddles on the steering wheel.
Engine Management
The N52 engine features the familiar engine management MSV70. The N46 engine is
equipped with the engine management ME9.
N52 Engine
Drivetrain
As its predecessor, the E85 LCI has a sporty tuned chassis. The standard run-flat tires
have been specially developed for the sports characteristics of the vehicle. They are now
a little more comfortable without changing the vehicle's agility.
Otherwise, the well-proven chassis of the Z4 has been retained. This lightweight chassis
with single-joint spring strut front axle and central link rear axle with aluminium control
arms still ensures safe and reliable handling as well as high cornering speeds.
DSC and DTC as well as the 50:50 axle weight distribution are further characteristic fea-
tures of the E85 LCI chassis.
10
E85 Life Cycle Impulse
Chassis
11
E85 Life Cycle Impulse
Bus Systems
New or updated control units in the bus system include:
• ACSM (Advanced crash and safety management)
• MFL (Multifunction steering wheel)
• SES (Voice recognition system)
• DSP-Carver = Top-HiFi
• ULF (Universal charging and hands-free facility)
• Controlled fuel pump (only in connection with N52 engine)
Passive Safety System
The E85 LCI is equipped with the advanced crash and safety management system
(ACSM). The ACSM system is fully described in the training material ST403 Passive
Safety Systems course.
Information & Communication Systems
The cable between the CD changer and amplifier has been eliminated if the option for
E85 Bus overview as from 01/2006
Electrical System