Ignition System: Locations
Component Locations, Overview
Components A to I are not shown in the exploded drawing.
A - Brake Light Switch -F- and Brake Pedal Switch -F47-
- In footwell on pedal bracket near brake pedal
B - Diagnostic connector
- In front knee protection, driver side
C - Fuel Pump (FP) relay -J17-
- Relay position 4 of central electrics left side under dash panel
D - Clutch Vacuum Vent Switch - F36
- In footwell on pedal frame
E - Throttle Position (TP) Sensor -G79- and Sender -2- for accelerator pedal position -G185
- In footwell on accelerator pedal (both senders are installed in one housing)
F - Electronic Power Control (EPC) warning light
- In instrument cluster
G - Leak Detection Pump (LDP) - V144
- Below left rear wheelhousing liner
H - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130 with Heater for Lambda-probe 1 -Z29
- This oxygen sensor is accessible from below when vehicle is lifted
I - Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) -G131 with Heater for Lambda-probe 2 -Z30
- This oxygen sensor is accessible from below when vehicle is lifted
Fuel Injection System Components:
1 - Harness connector for oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130 and Heater for Lambda-probe 1 -Z29
- 4-pin green
2 - Harness connector for Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) -G131 and Heater for Lambda-probe 2 -Z30
- 4-pin brown
3 - Harness connector for Heated Oxygen Sensor (HO2S) and Oxygen Sensor (O2S) Heater
- 4-pin black
4 - 3-pin harness connector
- For Knock sensor (KS) 1 -G61
5 - Engine - Coolant Temperature (ECT) Sensor -G62
- On cooling pipe behind cylinder bank 1
6 - Wastegate Bypass Regulator Valve -N75
7 - EVAP Canister Purge Regulator Valve -N80
8 - Sensor -1- for exhaust temperature -G235
- At rear of intake manifold on the left-hand side (looking from the front of the engine compartment) On vehicles with automatic transmission the Sensor -2- for exhaust temperature -G236 is located at this position.
9 - Secondary Air Injection (AIR) Solenoid Valve -N112
- Only on vehicles with automatic transmission
10 - Secondary Air Injection (AIR) Pump Motor - V101
- Only on vehicles with automatic transmission
11 - Sensor -2- for exhaust temperature -G236
- On vehicles with automatic transmission the sensor is located with Sensor -1- for exhaust temperature -G235 at Position -8-. Both sensors are located behind each other.
12 - Recirculating - valve for turbocharger -N249
13 - Fuel pressure regulator
14 - Camshaft Position (CMP) Sensor 2 -G163
- Cylinder bank 2
- Previously identified as Camshaft Position (CMP) Sensor 2 -G40
15 - Secondary Air Injection (AIR) Pump Relay -J299
- Only on vehicles with automatic transmission
16 - Motronic Engine Control Module (ECM) -J220
17 - 3-pin harness connector
- For Engine Speed (RPM) Sensor -G28
- grey
18 - 3-pin harness connector
- For Knock Sensor (KS) 2 -G66
19 - Harness connector for Heated Oxygen Sensor (HO2S) 2 -G108 and Oxygen Sensor (O2S) Heater -Z28
- 4-pin black
20 - Valve -2- - for camshaft adjustment -N208
21 - Throttle Valve Control Module -J338
- With Throttle drive (power accelerator actuation) -G186, Angle sensor -1- for throttle drive (power accelerator actuation) -G187 and Angle sensor -2- for throttle drive (power accelerator actuation) -G188
22 - Charge Air Pressure Sensor -G31
- In rubber below before Throttle Valve Control Module
23 - Camshaft Position (CMP) Sensor 1 -G40
- Cylinder bank 1
- Previously identified as Camshaft Position (CMP) Sensor 1 -G163
24 - Power output stage -N192
- For ignition coils cylinder bank 2
25 - Power output stage -N122
- For ignition coils cylinder bank 1
26 - Valve -1- for camshaft adjustment -N205
27 - Heated Oxygen Sensor (HO2S) -G39 with Oxygen Sensor (O2S) Heater -Z19
28 - Knock Sensor (KS) 1 -G61
29 - Knock Sensor (KS) 2 -G66
30 - Engine Speed (RPM) Sensor -G28
- In transmission above sensor wheel
31 - Heated Oxygen Sensor (HO2S) 2 -G108 and Oxygen Sensor (O2S) Heater -Z28
32 - Ignition coils cylinder bank 2
- Ignition Coil 4 -N163
- Ignition Coil 5 -N164
- Ignition Coil 6 -N189
33 - Fuel Injectors
- Cylinder bank 2
- Cylinder 4 Fuel Injector -N33
- Cylinder 5 Fuel Injector -N83
- Cylinder 6 Fuel Injector -N84
34 - Intake Air Temperature (IAT) Sensor -G42
- Under intake manifold at the front, near the throttle valve control module
35 - 2-pin harness connector
- For intake air temperature sensor (Measurements must be carried out at this connection)
36 - Fuel Injectors
- Cylinder bank 1
- Cylinder 1 Fuel Injector -N30
- Cylinder 2 Fuel Injector -N31
- Cylinder 3 Fuel Injector -N32
37 - Ignition coils cylinder bank 1
- Ignition Coil -N
- Ignition Coil 2 -N128
- Ignition Coil 3 -N158
38 - Mass Air Flow (MAF) Sensor -G70