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Engine Code CDMA






Component Location Overview

Components A through L are not shown in the exploded view illustration.






1 - Wastegate Bypass Regulator Valve (N75)

• Installed directly on turbocharger => [ Turbocharger Components, Engine Codes BWA and
BPY ]

2 - Ignition Coils with Power Output Stages

• Removing and installing, refer to => [ Ignition Coils with Power Output Stages ] Service and Repair

• 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 the ignition coil puller (T40039)

3 - Heated Oxygen Sensor (G39) and Oxygen Sensor Heater (Z19)

• Removing and installing, refer to => [ Heated Oxygen Sensor and Oxygen Sensor Heater before Catalytic Converter ] Heated Oxygen Sensor and Oxygen Sensor Heater Before Catalytic Converter

4 - Engine Control Module (J623)

• Removing and installing, refer to => [ Engine Control Module ] Service and Repair

5 - Low Fuel Pressure Sensor (G410)

• 15 Nm

6 - Single Piston High Pressure Pump

• Removing and installing, refer to => [ High Pressure Pump ] High Pressure Pump

7 - Fuel Pressure Regulator Valve (N276)

8 - Camshaft Adjustment Valve 1 (N205)

9 - 6-Pin Harness Connector

• For Heated Oxygen Sensor (HO2S) (G39) and Oxygen Sensor (O2S) Heater (Z19) (black) => [ Electrical Connector ]

10 - Mass Air Flow Sensor (G70)

• Removing and installing, refer to => [ Mass Air Flow Sensor ] Service and Repair

11 - Engine Coolant Temperature Sensor (G62)

12 - Engine Speed Sensor (G28)

• Electrical connectors on Knock Sensor (KS) 1 (G61) and Knock Sensor (KS) 2 (G66)

• Component location => [ Electrical Harness Connectors ]

13 - Intake Flap Motor (V157) with Intake Manifold Runner Position Sensor (G336)

• The intake manifold runner position sensor (G336) must be adapted to the engine control module (J623) after removing or replacing the fuel rail vehicle diagnosis, testing and information system (VAS 5052) "Guided Function".

• Removing and installing, refer to => [ Intake Flap Motor and Intake Manifold Runner Position Sensor ] Service and Repair

14 - Charge Air Pressure Sensor (G31)

15 - Electrical Harness Connectors

• For the fuel injectors, camshaft position sensor (G40) and fuel pressure sensor (G247)

• Component location => [ Component Locations Under Intake Manifold ]

16 - EVAP Canister Purge Regulator Valve (N80)

• Component location => [ Engine Code CDMA ]

17 - Turbocharger Recirculating Valve (N249)

• Component location => [ Engine Code CDMA ]

18 - Throttle Valve Control Module (J338) and Throttle Drive for 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 the throttle valve control module (J338), it must be adapted to the engine control module (J623) see vehicle diagnosis and service system (VAS 5052) "Guided Function".

19 - Intake Air Temperature Sensor (G42)

20 - After-Run Coolant Pump (V51)

21 - Engine Coolant Temperature Sensor (on Radiator) (G83)

22 - Fuel Pressure Sensor (G247)

• 22 Nm

• Removing and installing, refer to => [ Fuel Pressure Sensor ] Service and Repair

23 - Camshaft Position Sensor (G40)

A - Fuel Pump Control Module (J538)

• If Fuel Pump (FP) Control Module (J538) is replaced, a fuel pump adaptation must be performed. Basic setting measured values block 103.

B - Brake Light Switch (F) and Brake Pedal Switch (F63)

C - Throttle Position Sensor (G79) and Accelerator Pedal Position Sensor 2 (G185)

• On accelerator pedal (both sensors are stored in one housing)

• If the accelerator pedal module or engine control module is replaced in vehicles with automatic transmission, the kick-down function must be adapted.

D - Clutch Position Sensor (G476)

E - E-Box Relay and Fuse Carrier

F - Coolant Fan Control Control Module (J293)

G - Fuel Injector

• In fuel rail pipe

• Removing and installing, refer to => [ Fuel Injectors ] Fuel Injectors

• 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 110 bar).

H - Oxygen Sensor After Catalytic Converter (G130) and Oxygen Sensor Heater 1 After Catalytic Converter (Z29)

• Component location => [ Oxygen Sensor Behind Catalytic Converter ]

• Removing and installing, refer to => [ Oxygen Sensor after Catalytic Converter and Oxygen Sensor 1 Heater ] Oxygen Sensor After Catalytic Converter and Oxygen Sensor 1 Heater

I - Knock Sensor I (G61)

• For cylinder 1 and 2

• 20 Nm

• Component location => [ Component Locations Under Intake Manifold ]

J - Knock Sensor 2 (G66)

• For cylinder 3 and 4

• 20 Nm

• Component location => [ Component Locations Under Intake Manifold ]

K - Oil Pressure Switch (F1)

• Component location => [ Component Locations Under Intake Manifold ]

L - Exhaust Flap Valve 1 (N321)

Throttle Position Sensor (G79) and Accelerator Pedal Position Sensor 2 (G185)





2 Accelerator pedal module, electrical connector

Engine Coolant Temperature Sensor (G62) - 1 -





Engine Coolant Temperature Sensor (on Radiator) (G83) - 1 -





Fuel Pressure Sensor (G247) - 1 -





• Removing and installing, refer to => [ Fuel Pressure Sensor ] Service and Repair

Camshaft Position Sensor (G40) - 1 -





Mass Air Flow Sensor (G70) - 1 - Engine Codes BWA and BPY





Mass Air Flow Sensor (G70) - 1 - Engine Code CDMA





Fuel Pump Control Module (J538) - 1 -





• If Fuel Pump Control Module (J538) is replaced, a fuel pump adaptation must be performed. Basic setting, measuring value block 103.

Clutch Position Sensor (G476)





Removing and installing.

Brake Light Switch (F) and Brake Pedal Switch (F63)





Electrical Harness Connectors





1 3-pin harness connector (green) for Knock Sensor (KS) 1 (G61)
2 3-pin harness connector (brown) for Knock Sensor (KS) 2 (G66)
3 Oil pressure switch (F1)
4 Engine speed (RPM) sensor (G28)
5 3-pin connector (gray) for Engine Speed (RPM) Sensor (G28)

Component Locations Under Intake Manifold





1 Knock Sensor (KS) I (G61)
2 Knock Sensor (KS) II (G66)
3 Oil pressure switch (F1)
4 3-pin harness connector (brown) for Knock Sensor (KS) 2 (G66)
5 3-pin connector (gray) for Engine Speed (RPM) Sensor (G28)
6 Electrical connector for Camshaft Position (CMP) Sensor (G40) and Fuel Pressure Sensor (G247)
7 8-pin harness connector for fuel injectors

Charge Air Pressure Sensor (G31) - 2 -





Coolant Fan Control Module (J293)





1 Coolant Fan Control Module (J293), connector

• The Coolant Fan Control Module (J293) is integrated in the Coolant Fan (V7).

After-Run Coolant Pump (V51)





Electrical Connector - arrow -





Heated Oxygen Sensor (HO2S) (G39) and Oxygen Sensor (O2S) Heater (Z19)

Heated Oxygen Sensor (G39) - arrow -





Electrical Connector - arrow -





Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) and Oxygen Sensor (O2S) Heater 1 (behind Three Way Catalytic Converter (TWC)) (Z29) on right of vehicle floor

Oxygen Sensor Behind Catalytic Converter - arrow -





Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) and Oxygen Sensor (O2S) Heater 1 (behind Three Way Catalytic Converter (TWC)) (Z29)

Turbocharger Components, Engine Codes BWA and BPY





2 Tighten wastegate bypass regulator valve (N75) to 3 Nm.
3 Tighten turbocharger recirculating valve (N249) to 7 Nm (observe installation location, next illustration)

Note Installation Position of Turbocharger Recirculating Valve.





Turbocharger Components, Engine Code CDMA





2 Tighten wastegate bypass regulator valve (N75) to 3 Nm.

Turbocharger Recirculating Valve (N249) - 2 - Engine Code CDMA





1 Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80)
2 Turbocharger Recirculating Valve (N249)

Note Installation Position of Turbocharger Recirculating Valve





Markings - arrows - must align.

Exhaust Flap Valve 1 (N321)





1 Exhaust flap valve 1 (N321) connector

Check vacuum diaphragm for the exhaust flap.
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