Procedures

Replacing Wiring Harnesses




1 Cable duct
2 Ground point
3 DME control unit
4 EGS control unit
5 Plug-in connection, ignition coil
6 Ground point
7 Battery-positive terminal (on fuse box)
8 Battery-positive terminal (battery in trunk / luggage compartment)
9 Positive battery terminal (battery in engine compartment)
10 Temp. sensor, secondary air
11 Valve, secondary air pump
12 Tank venting valve
13 Air-mass sensor
14 Tank venting valve
15 Air pump connection
16 ZKE distributor
17 DME relay
18 EKP relay
19 Secondary air injection pump relay
20 Diagnosis connector
21 Engine connector I
22 Engine connector II
23 Engine connector III

Remove or disconnect the following parts:
- Front underbody protection.
- Rear underbody protection (splash guard)
- Battery where applicable
- Battery trim panel where applicable
- Right cover on control module (with noise insulation)
- Cable channel on separating wall
- Heater separating wall
- Upper section of manifold.
- Plug connection to DISA
- Plug connection from camshaft sensor
- Plug connector on crankshaft sensor
- Cable on alternator
- Screw connection on engine wiring harness
- Cable on starter
- Plug connection on coolant sensor
- Plug connection on oil pressure switch
- Disconnect cable
- Plug connection on injection valves
- Plug connection on knock sensors
- Engine wiring harness, right (positive terminal, control unit, diagnosis receptacle)
- Engine wiring harness, left (where applicable, positive terminal, engine connector, on fuse box)

Installation:
Route new wiring harness roughly in engine compartment. Connect all plug
connections shown in wiring harness drawings and perform a function check.




1 Cable duct
24 Starter, term. 30
25 Cable distributor
26 Idle speed actuator (straight connector)
27 DME throttle valve potentiometer (angled connector)
28 Injection valve connectors
29 Oxygen sensor (behind cat')
30 Fuel changeover
31 Reversing light switch
32 Transmission rpm sensor
33 Transmission shift unit
34 Transmission shift unit
35 Oxygen sensor (before cat')
36 Oxygen sensor (before cat')
37 Knock sensor




25 Cable distributor
38 Starter, term. 30h
39 Starter, term. 50
40 Starter, term. 50
41 Alternator B +
42 Alternator D +
43 Remote thermometer sensor
44 Oil-pressure switch
45 Changeover valve
46 Crankshaft sensor
47 Hall sensor