Component locations, overview Audi A6 С6

Component locations, overview

Components A through G are not depicted in the illustration

Scheme 1242

1 - Engine Control Module (ECM) J623

1. Component location: in E-box in right plenum chamber.
2. Removing and installing --> «Engine Control Module (ECM) J623 , removing and installing»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__engine-control-module-ecm-j623) .
3. Replacing --> «Engine Control Module (ECM) J623 , replacing»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__engine-control-module-ecm-j623) .

2 - Mass air flow (MAF) sensor G70 with intake air temperature (IAT) sensor G42

1. Checking --> «Mass Air Flow (MAF) Sensor G70 , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__mass-air-flow-maf-sensor-g70) .

3 - Valve 1 for camshaft adjustment N205

1. Checking --> «Camshaft Adjustment Valve , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__camshaft-adjustment-valve-checking) .

4 - Connector strip

1. Connector assignment «Connector strip on right side of bulkhead»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk)

5 - Camshaft Position (CMP) sensor G40

1. Cylinder bank 1
2. Checking --> «Camshaft Position (CMP) Sensors , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__camshaft-position-cmp-sensors-checking) .

6 - Engine coolant temperature (ECT) sensor G62

1. Checking --> «Engine Coolant Temperature (ECT) Sensor G62 , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__engine-coolant-temperature-ect-sensor-g62) .

7 - Throttle valve control module J338

1. With 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.
2. Checking --> «Throttle Valve Control Module J338 , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__throttle-valve-control-module-j338) .

8 - Evaporative emission (EVAP) canister purge regulator valve N80

1. Checking --> «Evaporative Emission (EVAP) Canister Purge Regulator Valve N80 , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__evaporative-emission-evap-canister-purge-regulator) .

9 - Oil pressure switch F1

1. «Engine viewed from rear»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk)

10 - Camshaft position (CMP) sensor 2 G163

1. Cylinder bank 2
2. Checking --> «Camshaft Position (CMP) Sensors , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__camshaft-position-cmp-sensors-checking) .

11 - Connector strip

1. Connector assignment
2. «Connector strip beneath coolant reservoir»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk)

12 - Valve 2 for camshaft adjustment N208

1. Checking --> «Camshaft Adjustment Valve , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__camshaft-adjustment-valve-checking) .

13 - Ignition coils with power output stages

1. Cylinder bank 2
2. To remove, use puller for ignition coil T10094.
3. Checking --> «Ignition Coil with Power Output Stage N70, N127, N291, N292, N323, N324, N325, N326 , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__ignition-coil-with-power-output-stage) .

14 - 3-pin harness connector

1. For knock sensor (KS) 3 G198.
2. For knock sensor (KS) 4 G199.

15 - Secondary Air Injection (AIR) Solenoid Valve N112

1. «Engine viewed from front»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk)
2. Checking --> «Secondary Air Injection (AIR) Solenoid Valve -N112- , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__secondary-air-injection-air-solenoid-valve) .

16 - Intake Manifold Change-Over Valve N156

1. «Engine viewed from front»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk)

17 - 3-pin harness connector

1. For knock sensor (KS) 1 G61.
2. For knock sensor (KS) 2 G66.
3. «Engine viewed from front»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk)

18 - Ignition coils with power output stages

1. Cylinder bank 1
2. To remove, use puller for ignition coil T10094.
3. Checking --> «Ignition Coil with Power Output Stage N70, N127, N291, N292, N323, N324, N325, N326 , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__ignition-coil-with-power-output-stage) .

19 - Intake air switch-over valve N335

1. For controlling a flap in air filter housing
2. The intake air switch-over valve N335 is located behind air filter housing. The air filter housing must be completely removed to test the valve.

20 - Secondary air injection (AIR) pump motor V101

1. Front bottom in driving direction.
2. Refer to --> «Secondary air injection (AIR) pump motor V101»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk)
3. Checking --> «Voltage supply for Secondary Air Injection (AIR) Pump Motor -V101- , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__voltage-supply-for-secondary-air-injection) .

A - Throttle position (TP) sensor G79 and Accelerator Pedal Position Sensor 2 G185

1. In footwell on accelerator pedal (both sensors are integrated into one housing).
2. Checking --> «Throttle Position (TP) Sensor G79/Accelerator Pedal Position Sensor 2 G185 , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__throttle-position-tp-sensor-g79accelerator-pedal) .

B - Brake light switch F

1. In footwell on pedal mount near brake pedal.

C - Fuel pump (FP) relay J17

1. In 3-pin relay carrier in plenum chamber, left side, relay position 2.
2. «Component located on 3-pin relay carrier in left plenum chamber»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk)
3. Checking --> «Fuel Pump (FP) Relay J17 , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__fuel-pump-fp-relay-j17) .

D - Motronic engine control module (ECM) power supply relay J271

1. In 3-pin relay carrier in plenum chamber, left side, relay position 3.
2. «Component located on 3-pin relay carrier in left plenum chamber»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk)
3. Checking --> «Motronic Engine Control Module (ECM) Power Supply Relay J271 , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__motronic-engine-control-module-ecm-power) .

E - Secondary air injection (AIR) pump relay J299

1. In 4-pin relay carrier in E-box, in right side of plenum chamber, relay position 3.
2. «Component located on 4-pin relay carrier in E-box of right plenum chamber»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk)
3. Checking --> «Secondary Air Injection (AIR) Pump Relay -J299- , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__secondary-air-injection-air-pump-relay) .

F - Data Link Connector (DLC)

1. Located in knee bolster on drivers side.

G - Engine speed (RPM) sensor G28

1. In transmission housing over ring gear.
2. Checking --> «Engine Speed (RPM) Sensor G28 , checking»(/audi/a6/6-2004-2008/remont/cooling-fan/#42l-v8-5v-generic-scan-tool-engine-codes-bnk__engine-speed-rpm-sensor-g28) .

Scheme 1243

2 - Fuel pump (FP) relay J17.

3 - Motronic engine control module (ECM) power supply relay J271.

Scheme 1244

3 - Secondary air injection (AIR) pump relay J299.

Scheme 1245

1 - 6-pin connection for heated oxygen sensor (HO2S) G39 and oxygen sensor (O2S) heater Z19 before catalytic converter of bank 1.

2 - 2-pin connection for bank 1 valve 1 for camshaft adjustment N205.

3 - 4-pin connection for oxygen sensor (O2S) behind three way catalytic converter (TWC) G130 and oxygen sensor (O2S) heater 1 (behind three way catalytic converter (TWC)) Z29 of bank 1.

Scheme 1246

1 - 6-pin connection for heated oxygen sensor (HO2S) 2 G108 and oxygen sensor (O2S) heater 2 Z28 before catalytic converter of bank 2.

2 - 3-pin connection (gray) for engine speed (RPM) sensor G28.

3 - 2-pin connection for bank 2 valve 2 for camshaft adjustment N208.

4 - 4-pin connection for oxygen sensor (O2S) 2 behind three way catalytic converter (TWC) G131 and oxygen sensor (O2S) heater 2 (behind three way catalytic converter (TWC)) Z30 of bank 2.

Scheme 1247

1 - Vacuum diaphragm for intake manifold change-over.

2 - Knock sensor (KS) 1 G61.

3 - Knock sensor (KS) 2 G66.

4 - Intake Manifold Change-Over Valve N156.

5 - Secondary Air Injection (AIR) Solenoid Valve N112.

6 - Knock sensor (KS) 3 G198.

7 - Knock sensor (KS) 4 G199.

Scheme 1248

1 - Valve 2 for camshaft adjustment N208.

2 - Camshaft position (CMP) sensor 2 G163 cylinder bank 2.

3 - Oil pressure switch F1.

4 - Throttle valve control module J338.

5 - Engine coolant temperature (ECT) sensor G62.

6 - Camshaft position (CMP) sensor G40 cylinder bank 1.

7 - Valve 1 for camshaft adjustment N205.

Scheme 1249

1. Lower right, in driving direction.

Scheme 1250

1 - Vent hose

2 - Intake air switch-over valve N335

3 - Lower part of air filter housing

1. Clean air filter housing of salt residue, dirt and leaves.

4 - Rubber grommet

5 - Air duct

1. Check air duct for dirt and leaves.

6 - 1.5 Nm

7 - Air duct

1. Check air duct for dirt and leaves.

8 - Connection

9 - Air duct hose to Throttle Valve Control Module J338

1. With resonator.

10 - Wiring router

11 - O-ring

1. Always replace.

12 - 1.5 Nm

1. For securing air filter element.

13 - Upper part of air filter housing

1. Clean air filter housing of salt residue, dirt and leaves.

14 - Air duct

1. Clipped into upper part of air filter housing.

15 - Air filter element

1. Always use a genuine air filter element.

16 - O-ring

1. Always replace.

17 - Spreader clip

18 - Grommet

Scheme 1251

1 - Intake manifold

2 - O-rings

1. For fuel injectors.
2. Always replace.

3 - 10 Nm

4 - Fuel supply line

1. Tighten union nut to 25 Nm.

5 - Fuel rail

6 - Pressure regulator valve

1. For crankcase ventilation.

7 - 10 Nm

1. Fasten diagonally in steps.

8 - Lifting eye

9 - 23 Nm

10 - Gasket

1. For intake manifold.
2. Always replace.

11 - Locking pin - 0.6 Nm