Radiator fan control - 350W, 400W or 600W (petrol engines)

●

1.6 litre, 75 kW, engine code ALZ

●

1.8 litre, 120 kW, engine code BFB

●

1.8 litre, 125 kW, engine code AMB

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1.8 litre, 140 kW, engine code BEX

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2.0 litre, 96 kW, engine code ALT

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2.0 litre, 110 kW, engine code AWA

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3.0 litre, 160 kW, engine code BBJ

●

3.0 litre, 162 kW, engine codes ASN, AVK, BGN

From model year 2003

Audi A4

Current Flow Diagram

No. 15 / 1

Edition 05.2003

Main fuse

On battery

Fuse box

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Dash panel, driver's side

Fuse colours

30 A - green
25 A - white
20 A - yellow
15 A - blue
10 A - red

7.5 A - brown

5 A - beige

Note:

From fuse number 23 upwards the fuses in the fuse box are designated as 223 etc. in the Current Flow Diagram.

Connector point with screw connection

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In electronics box, plenum chamber

3 - 17-pin connector, red (T17d)
6 - 17-pin connector, white (T17e)

Connector point, A pillar

On left-hand side, bottom, behind side trim

14 - 10-pin connector, grey (T10d)

4-point relay carrier

In electronics box, plenum chamber

3 - Motronic current supply relay (J271)
3 - Current supply relay for Simos control unit (J363)

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4-point relay carrier with screw connection

Dash panel, driver's side

G - Radiator fan single fuse (S42)

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Audi A4

Current Flow Diagram

No. 15 / 2

ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li

= purple

ge = yellow
or = orange
rs = pink

Radiator fan control
A

- Battery

J...

-

Engine management system relay (see applicable engine
Current Flow Diagram)

J220

- Motronic control unit

J293

- Radiator fan control unit

J361

- Simos control unit

S4

- Fuse in fuse box/relay plate

S42

- Radiator fan single fuse

S88

- Strip fuse

T10d

- 10-pin connector, grey, connector point, A pillar, left

T17d

-

17-pin connector, red, connector point, electronics box,
plenum chamber

T17e

-

17-pin connector, white, connector point, electronics box,
plenum chamber

11

- Earth point, in battery box

26

- Earth point, on front apron

500

- Screw connection -1- (30), on relay plate

D50

-

Positive (+) connection (30), in engine compartment wiring
harness

D173

- Connection (87), in engine wiring harness

*

- 1.6 litre Simos

**

- 1.8 litre/2.0 litre Motronic

***

- 3.0 litre Motronic

****

- 2.0 litre FSI-Motronic

*****

- Not fitted on all models

#

-

60 A for radiator fan control - 600W (countries with hot
climate, automatic gearbox or trailer operation)

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