Technical data Audi TT 8N рестайлинг

Technical data

Scheme 394

1 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- with Oxygen Sensor (O2S) Heater 1 -Z29

1. Component location. See «Location of oxygen sensor behind catalytic converter and protective cover for harness connector»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea)
2. Check Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC). Refer to «Checking Heated Oxygen Sensor (HO2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC)»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__checking-heated-oxygen-sensor-ho2s-and)
3. Check oxygen sensor heater for Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC). Refer to «Oxygen sensor heating of Oxygen Sensor (O2S) Heater 1 behind Three Way Catalytic Converter (TWC) -Z29-, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__oxygen-sensor-heating-of-oxygen-sensor)
4. Removing and installing. Refer to «Oxygen sensor, removing and installing»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__oxygen-sensor-removing-and-installing)

2 - 4-pin harness connector

1. For Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) -G130- and Oxygen Sensor (O2S) Heater 1 -Z29- (brown)
2. Component location. See «Location of oxygen sensor behind catalytic converter and protective cover for harness connector»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea)

3 - Heated Oxygen Sensor (HO2S) -G39- before catalytic converter with Oxygen Sensor (O2S) Heater -Z19

1. Constant oxygen sensor
2. Check Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC). Refer to «Oxygen sensor and oxygen sensor control before catalytic converter, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__oxygen-sensor-and-oxygen-sensor-control)
3. Check oxygen sensor aging of oxygen sensor before catalytic converter. Refer to «Oxygen sensor aging, oxygen sensor before catalytic converter, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__oxygen-sensor-aging-oxygen-sensor-before)
4. Check oxygen sensor heater for Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC). Refer to «Oxygen sensor heating of Oxygen Sensor (O2S) Heater -Z19-, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea)

1. Removing and installing. Refer to «Oxygen sensor, removing and installing»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__oxygen-sensor-removing-and-installing)

4 - 6-pin harness connector

1. For Heated Oxygen Sensor (HO2S) -G39- before catalytic converter and Oxygen Sensor (O2S) Heater -Z19- (black)

5 - Motronic Engine Control Module (ECM) -J220

1. Check voltage supply of Engine Control Module (ECM). Refer to «Voltage supply for control module, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__voltage-supply-for-control-module-checking)
2. Procedure to follow after open circuit in voltage supply. Refer to «Procedure following interruption of voltage supply»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__procedure-following-interruption-of-voltage-supply)
3. Replace. Refer to «Engine Control Module (ECM), replacing»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__engine-control-module-ecm-replacing)

6 - Ignition coils

1. Cylinder 1 Ignition Coil -N
2. Cylinder 2 Ignition Coil 2 -N128
3. Cylinder 3 Ignition Coil 3 -N158
4. Cylinder 4 Ignition Coil 4 -N163

1. Checking. Refer to «Ignition coils with power output stages, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__ignition-coils-with-power-output-stages)

7 - Recirculating valve for turbocharger -N249

1. Component location. See «Location of Recirculating valve for turbocharger -N249»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea)
2. Checking

Refer to 21 TURBOCHARGER, G-CHARGER ; Charge air system with turbocharger, checking

8 - Combination valve for secondary air injection (AIR)

1. Checking, removing and installing

Refer to 26 EXHAUST SYSTEM, EMISSION CONTROLS ; Secondary Air Injection (AIR) system components, removing and installing

9 - Throttle Position (TP) sensor -G79- and Sender -2- for accelerator pedal position -G185

1. Component location. See «Installed position, Throttle Position (TP) sensor -G79- and Sender -2- for accelerator pedal position -G185»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea)
2. Checking. Refer to «Throttle Position (TP) sensor, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__throttle-position-tp-sensor-checking)

10 - Brake light switch -F- and Brake pedal switch -F47

1. Component location. See «Location of Brake light switch -F- and Brake pedal switch -F47»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea)

11 - Clutch vacuum vent valve switch -F36

1. Component location. See «Location of Clutch vacuum vent valve switch -F36»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea)

12 - Instrument cluster

1. With Electronic Power Control (EPC) warning lamp -K132
2. With Malfunction Indicator Lamp (MIL) -K83

13 - Motronic Engine Control Module (ECM) voltage supply relay -J271

1. Component location. See «Location of Motronic Engine Control Module (ECM) power supply relay -J271»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea)
2. Checking. Refer to «Motronic Engine Control Module (ECM) power supply relay -J271-, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__motronic-engine-control-module-ecm-power)

14 - Mass Air Flow (MAF) Sensor -G70

1. Checking. Refer to «Mass Air Flow (MAF) sensor -G70-, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__mass-air-flow-maf-sensor-g70)

15 - Wastegate Bypass Regulator Valve -N75

1. Checking

Refer to 21 TURBOCHARGER, G-CHARGER ; Charge air system with turbocharger, checking

16 - Engine Coolant Temperature (ECT) Sensor -G62

1. Checking. Refer to «Engine Coolant Temperature (ECT) sensor -G62-, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__engine-coolant-temperature-ect-sensor-g62)
2. If necessary, release pressure in cooling system before removing

17 - Valve -1- for camshaft adjustment -N205

Refer to 15 ENGINE - CYLINDER HEAD, VALVETRAIN ; Camshaft adjustment, checking

18 - Fuel pressure regulator

1. Checking. Refer to «System pressure, fuel pressure regulator and residual pressure, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__system-pressure-fuel-pressure-regulator-and)

19 - Knock Sensor (KS) 2 -G66

20 - Charge Air Pressure Sensor -G31

1. Screwed in, above in charge air cooler
2. Checking

Refer to 21 TURBOCHARGER, G-CHARGER ; Charge air system with turbocharger, checking

21 - Engine Speed (RPM) Sensor -G28

1. Checking. Refer to «Engine Speed (RPM) sensor -G28-, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__engine-speed-rpm-sensor-g28-checking)

22 - Throttle Valve Control Module -J338

1. 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
2. Checking. Refer to «Throttle Valve Control Module -J338-, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__throttle-valve-control-module-j338-checking)
3. When replacing, perform adaptation. Refer to «Throttle valve control module, adapting»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__throttle-valve-control-module-adapting)

23 - Intake Air Temperature (IAT) Sensor -G42

1. Checking. Refer to «Intake Air Temperature (IAT) sensor -G42-, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__intake-air-temperature-iat-sensor-g42)

24 - 3-pin harness connector

1. For Engine speed (RPM) sensor -G28

25 - Sensor -1- for exhaust temperature -G235

1. Location: in turbocharger

26 - Fuel injectors

1. Cylinder 1 Fuel Injector -N30
2. Cylinder 2 fuel injector -N31
3. Cylinder 3 fuel injector -N32
4. Cylinder 4 fuel injector -N33

1. Checking. Refer to «Fuel injectors, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea)
2. Removing and installing. Refer to «Fuel injectors, removing and installing»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea)

27 - Secondary Air Injection (AIR) pump motor-V101

1. Checking

Refer to 26 EXHAUST SYSTEM, EMISSION CONTROLS ; Secondary Air Injection (AIR) system components, removing and installing

28 - Knock Sensor (KS) 1 -G61

29 - Pressure switch/power steering -F88

1. Component location. See «Installed position of Pressure switch/power steering -F88»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea)

30 - Camshaft Position (CMP) Sensor -G40

1. Checking. Refer to «Camshaft Position (CMP) Sensor -G40-, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__camshaft-position-cmp-sensor-g40-checking)

31 - Evaporative Emission (EVAP) canister purge regulator valve -N80

1. Checking. Refer to «Evaporative Emission (EVAP) canister purge regulator valve -N80-, checking»(/audi/tt/8n-2003-2006/remont/fuel-system/#18l-4-cyl-5v-turbo-fuel-injection-ignition-engine-codes-bea__evaporative-emission-evap-canister-purge-regulator)

Scheme 395

1. On cylinder head cover

1 - To connection at intake manifold

2 - Vacuum reservoir

3 - To mechanical recirculating valve

4 - Recirculating valve for turbocharger -N249

Scheme 396

Note. Illustration depicts allocation for left-hand drive.

Scheme 397

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

2 - Protective cover for harness connector

The harness connector for the oxygen sensor and oxygen sensor heater is accessible at the vehicle floor, right side, after unscrewing the protective cover (arrows).

Scheme 398

1. Below cover, on left at bulkhead

Note. To remove the protective hood for vehicles with a dome brace, disengage relay carrier at the bulkhead and swing downward. Disconnect additional harness connectors at Mass Air Flow (MAF) sensor, if necessary.

Scheme 399

Scheme 400

Scheme 401

Scheme 402

1 - Seal

2 - Mass Air Flow (MAF) Sensor -G70

3 - Phillips-head screw

4 - Air guide

5 - 5-pin harness connector

6 - Phillips-head screw

7 - Upper part of air filter

8 - Filter element

9 - Nut, 10 Nm

10 - Air intake connection

11 - Lower part of air filter

12 - Hex-bolt, 10 Nm