Component Locations Overview
Component Location Overview
Components A through V are not shown in the exploded view illustration.
1 - Camshaft adjustment valve 1 N205
2 - Wastegate bypass regulator valve N75
- Installed directly on turbocharger
3 - Turbocharger recalculating valve N249
- Installed directly on turbocharger
4 - Ignition coils with power output stages
- Ignition coil 1 with power output stage N70
- Ignition coil 2 with power output stage N127
- Ignition coil 3 with power output stage N291
- Ignition coil 4 with power output stage N292
- The ignition coils must be pulled out of the cylinder head using ignition coil puller T40039
5 - Engine control module J623
6 - Mechanical single-piston high-pressure pump
7 - Fuel pressure regulator valve N276
8 - Engine Coolant Temperature (ECT) sensor (on radiator) G83
9 - Vacuum diaphragm for the channel separating plate
10 - Intake Manifold Runner Control (IMRC) valve N316
11 - Engine speed (RPM) sensor G28
12 - Charge air pressure sensor G31
13 - Electrical connector from Knock Sensor (KS) 1 G61
14 - Electrical connector from Camshaft Position (CMP) sensor 2 G40
15 - 8 pin harness connector for fuel injectors
16 - Throttle valve control module J338, throttle drive (for Electronic Power Control (EPC)) G186,
- Throttle drive angle sensor 1 (for Electronic Power Control (EPC)) G187 and throttle drive angle sensor 2 (for Electronic Power Control (EPC)) G188
- After replacing throttle valve control module J338, it must be adapted to engine control module J623 ; see vehicle diagnosis, testing and information system VAS 5051B
17 - Evaporative Emission (EVAP) canister purge regulator valve N80
18 - Intake Air Temperature (IAT) sensor G42
- 11 Nm
19 - Knock Sensor (KS) 1 G61
- Knock Sensor (KS) 1 G61 tightening specification: 20 Nm
20 - Engine Coolant Temperature (ECT) sensor G62
21 - Camshaft Position (CMP) sensor G40
- Installation location below cover with oil separator
22 - Fuel pressure sensor G247
- 27 Nm
23 - Intake manifold runner position sensor G336
24 - Oil pressure switch F1
A - Data Link Connector (DLC)
- In knee bolster on drivers side
B - Mass Air Flow (MAF) sensor G70 and Intake Air Temperature (IAT) sensor 2 G29
C - Fuel Pump (FP) control module J538
D - "EPC" indicator lamp
- In instrument cluster
E - Exhaust Malfunction Indicator Lamp "MIL"
- In instrument cluster
F - Heated Oxygen Sensor (HO2S) G39 and Oxygen Sensor (O2S) Heater Z19
- Installation location, engine code CCTA
- Installation location, engine code CBFA
- Oxygen sensors assembly overview
G - Electrical connect or from heated oxygen sensor G39 and oxygen sensor heater Z19
- Installation location, engine codes CCTA and CBFA
H - Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) G130 and Oxygen Sensor (O2S) heater 1 (behind Three Way Catalytic Converter (TWC)) Z29
- Installation location, engine code CCTA
- Installation location, engine code CBFA
- Oxygen sensors assembly overview
I - Electrical connector from oxygen sensor after three way catalytic converter G130 and Oxygen Sensor (O2S) 1 (after Three Way Catalytic Converter (TWC)) heater Z29
- Installation location, engine code CCTA
- Installation location, engine code CBFA
J - Oxygen Sensor 3 (O2S) after Three Way Catalytic Converter (TWC) G287 and Oxygen Sensor (O2S) heater 3 (after Three Way Catalytic Converter (TWC)) Z64
- Only installed with engine code CBFA
- Installation location, engine code CBFA
- Oxygen sensors assembly overview
K - Electrical connector from Oxygen Sensor (O2S) 3 after Three W ay Catalytic Converter (TWC) G287
- Only installed with engine code CBFA
- Installation location, engine code CBFA
L - Brake light switch F and brake pedal switch F63
M - Throttle Position (TP) sensor G79 and accelerator pedal position sensor 2 G185
- On accelerator pedal (both sensors are stored in one housing)
- If accelerator pedal module or Engine Control Module (ECM) is replaced in vehicles with automatic transmission, the kick-down function must be adapted.
N - Clutch position sensor G476
- Only for vehicles with manual transmission
O - Relay and fuse carrier in E-box
- Relay and fuse assignment
P - Coolant Fan Control (FC) control module J293
Q - Fuel injector
- In fuel rail pipe
- Cylinder 1 fuel injector N30
- Cylinder 2 fuel injector N31
- Cylinder 3 fuel injector N32
- Cylinder 4 fuel injector N33
Fuel injectors referred to here are high pressure fuel injectors. They inject fuel directly into the cylinder under high pressure (max. approximately 150 bar).
R - After-run coolant pump V51
S - Secondary Air Injection (AIR) pump motor V101
- Only installed with engine code CBFA
T - Secondary Air Injection (AIR) solenoid valve N112
- Only installed with engine code CBFA
V - Secondary Air Injection sensor 1 G609
- Only installed with engine code CBFA
Throttle Position (TP) Sensor G79 and Accelerator Pedal Position Sensor 2 G185
2 - Accelerator pedal module, electrical connector
High Pressure Fuel Pump - 1 -
2 - Fuel pressure regulator valve N276
Intake Manifold Runner Control (IMRC) Valve N316 - 2 -
1 - Intake manifold flap vacuum diaphragm
NOTE: The intake manifold flaps are the same as the channel separating plates.
Fuel Pressure Sensor G247 - 1 -
Intake Manifold Runner Position Sensor G336 - 1 -.
Camshaft Adjustment Valve 1 N205 - arrow -
Mass Air Flow (MAF) Sensor G70 and Intake Air Temperature (IAT) Sensor 2 G299 - 1 -.
Fuel Pump (FP) Control Module J538 - 2 -
1 - Fuel pump control module J538 connector
2 - Fuel Pump (FP) Control Module J538
3 - Transfer Fuel Pump (FP) G6.
Clutch Position Sensor G476
Brake Light Switch F and Brake Pedal Switch F63
Engine Speed (RPM) Sensor G28 - 1 -
Camshaft Position (CMP) Sensor G40 - 1 -
Electrical Harness Connectors
1 - From camshaft position sensor G40 and intake manifold runner position sensor G336
2 - From Knock Sensor (KS) 1 G61
3 - 8 pin harness connector for fuel injectors.
Engine Coolant Temperature (ECT) Sensor G62 - 1 -
NOTE: Under intake manifold (the intake manifold is not shown in the illustration).
Engine Coolant Temperature (ECT) Sensor (on Radiator) G83 - 1 -
Charge Air Pressure Sensor G31 - 1 -
Coolant Fan Control (FC) Control Module J293
1 - Coolant Fan Control (FC) control module J293, connector
NOTE: The Coolant Fan Control (FC) control module J293 is integrated in coolant fan V7.
Installation Location, Engine Codes CCTA and CBFA
1 - Electrical connector for heated oxygen sensor G39 and oxygen sensor heater Z19.
Installation Location, Engine Code CCTA
1 - Heated Oxygen Sensor (HO2S) G39 and Oxygen Sensor (O2S) heater Z19
Installation Location, Engine Code CBFA
1 - Heated Oxygen Sensor (HO2S) G39 and Oxygen Sensor (O2S) heater Z19.
Installation Location, Engine Code CCTA
- Arrow - electrical connector for Oxygen sensor (O2S) behind Three Way Catalytic Converter (TWC) G130 and Oxygen Sensor (O2S) 1 (after Three Way Catalytic Converter (TWC)) heater Z29.
Installation Location, Engine Code CCTA
1 - Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) G130 with Oxygen Sensor (O2S) 1 (behind Three Way Catalytic Converter (TWC)) heater Z29
NOTE: The arrow in the illustration points in the direction of travel.
Installation Location, Engine Code CBFA
1 - Electrical connector for Oxygen sensor after three way catalytic converter G287 and Oxygen Sensor (O2S) 3 (after Three Way Catalytic Converter (TWC)) heater Z64.
2 - Electrical connector for Oxygen sensor 3 after three way catalytic converter G130 and Oxygen Sensor (O2S) 1 (after Three Way Catalytic Converter (TWC)) heater Z29.
Installation Location, Engine Code CBFA
1 - Oxygen Sensor 3 (O2S) after Three Way Catalytic Converter (TWC) G287 and Oxygen Sensor (O2S) heater 3 (after Three Way Catalytic Converter (TWC)) Z64.
2 - Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) G130 and Oxygen Sensor (O2S) heater 1 (behind Three Way Catalytic Converter (TWC)) Z29.
NOTE: The arrow in the illustration points in the direction of travel.
Components on Turbocharger
1 - Turbocharger, removing and installing.
2 - Tighten wastegate bypass regulator valve N75 to 3 Nm.
3 - Tighten turbocharger recirculating valve N249 to 7 Nm (observe installation location, next illustration).
Observe Installed location of Turbocharger Recirculating Valve N249.
After-Run Coolant Pump V51 - 1 -
Secondary Air Injection (only Engine Code CBFA)
1 - Electrical connector from secondary air injection solenoid valve N112
2 - Secondary air injection sensor 1 G609
3 - Secondary Air Injection (AIR) solenoid valve N112