Operation CHARM: Car repair manuals for everyone.

Overview of Component Locations




Fuel Injection, Servicing (Component Locations Overview)


Component Location, Overview:






Components A, B and C are not depicted in the illustration.

A - Brake pedal switch -F47- and brake light switch -F-
- Together in one housing, in footwell
B - Throttle Position (TP) sensor- G79- and sender -2- for accelerator pedal position - G185-*
- In footwell, at accelerator pedal
C - Clutch vacuum vent valve switch - F36-
- In footwell

1 - Evaporative Emission (EVAP) canister purge regulator valve -N80- */**
- EVAP canister system
2 - Camshaft position (CMP) sensor - G40-*
- Below the upper toothed belt guard
3 - Intake manifold
Upper part.
Lower part.
4 - Throttle valve control module -J338-*
- When replacing, adapt Engine Control Module (ECM).
- Display group 61 - RPM regulation- e-gas system
- 6-pin connector
- Terminals are gold-plated
5 - Connector, 81-pin
- Before disconnecting or connecting connector, switch off ignition
- disengage to pull off
6 - Engine Control Module (ECM)*
(control module for Motronic -J220-)
- Checking voltage supply
- Procedure to follow after open circuit in voltage supply
- When replacing, perform basic setting.
7 - Connector, 40-pin
- Before disconnecting or connecting connector, switch off ignition
8 - Heated Oxygen Sensor (HO2S) -G39-* before catalytic converter, 50 Nm
- Installation location: In exhaust manifold
- Grease only threads with Part No. G 052 112 A3 hot bolt paste (anti-seize compound). Grease must not get into slots on sensor body
- Check oxygen sensor heater for Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC).
- Check Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC).


CAUTION!
Part numbers are for reference only. Always check with your Parts Dept. for the latest parts information.



9 - 6-pin harness connector
- Terminals are gold-plated
- For Heated Oxygen Sensor (HO2S) 1 before Three Way Catalytic Converter (TWC) -G39- and Oxygen Sensor (O2S) heater -Z19-
- At vehicle underbody
10 - Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) -G130-*, 50 Nm
- Installation location: In rear catalytic converter
- Grease only threads with Part No. G 052 112 A3 hot bolt paste (anti-seize compound). Grease must not get into slots on sensor body
- Check oxygen sensor heater for Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC).
- Check Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC).


CAUTION!
Part numbers are for reference only. Always check with your Parts Dept. for the latest parts information.



11 - 4-pin harness connector
- Terminals 3 and 4 gold-plated
- For Heated Oxygen Sensor (HO2S) 2 behind Three Way Catalytic Converter (TWC) -G130- and Oxygen sensor heater 1 -Z29-
- At vehicle underbody
12 - Mass Air Flow (MAF) sensor -G70-* with Intake Air Temperature (IAT) sensor -G42-*
- Terminals are gold-plated
- Check Mass Air Flow (MAF) sensor
- Check Intake Air Temperature (IAT) sensor
13 - Secondary Air Injection (AIR) pump relay -J299-*/**
- Secondary Air Injection system
14 - Air cleaner housing
15 - Protective housing
- For additional fuses
16 - Engine Coolant Temperature (ECT) sensor -G62-*
- If necessary, release pressure in cooling system before removing
17 - Positive Crankcase Ventilation (PCV) heating element -N79-
18 - Fuel injectors (-N30- through -N33-) */**
- Air cleaned
19 - 10 Nm
20 - Engine speed sensor -G28-*
21 - O-ring
- Always replace
22 - Ignition coil with power output stage (-N70-, -N127-, -N291-, -N292-)
23 - 20 Nm
- Tightening torque affects function of Knock Sensor (KS)
24 - Knock Sensor (KS) 2 -G66-*
- Black, 2-pin
- Terminals are gold-plated
25 - 2-way connector
- For Knock Sensor (KS) 2 -G66-
- Black
- Mark connector before removing
26 - Secondary Air Injection (AIR) pump motor -V101-*
- Secondary Air Injection system
27 - Knock Sensor (KS) 1 (G61)*
- Terminals are gold-plated
28 - 2-way connector
- For knock Sensor (KS) 1 -G61-
- Black
- Mark connector before removing
29 - Fuel pressure regulator