Jetta V6-2.8L (BDF) (2002)
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10 -
Connector.
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For Motronic Engine Control Module (ECM) - J220 -.
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Disconnect or connect only with ignition switched off.
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Release to disconnect.
11 -
Retaining clip.
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Check seated securely.
12 -
Thermostat housing.
13 -
O-ring.
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Replace if damaged.
14 -
Engine Coolant Temperature (ECT) sensor -G62-*.
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For Motronic Engine Control Module (ECM) - J220 -.
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With Engine Coolant Temperature (ECT) sensor - G2 -.
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Gold plated terminals.
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Release pressure in cooling system if necessary before removing components.
15 -
10 Nm.
16 -
Engine Speed (RPM) Sensor -G28-*.
17 -
Connector.
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Black, 4-pin.
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Terminals 3 and 4 are gold plated.
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For Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) - G130 - and Oxygen Sensor (O2S) Heater 1 - Z29 -.
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Component location: Right on underside of vehicle.
18 -
Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-*, 50 Nm.
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Component location: In rear of Three Way Catalytic Converter.
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Remove and install with ring wrench 3337.
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Grease the threads only with G 052 112 A3 ; G 052 112 A3 must not get into the slots on the sensor body.
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If seal is leaking, replace seal.
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Oxygen Sensor (O2S) heating voltage supply via fuel pump relay.
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Check Oxygen Sensor (O2S) heating for Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) - G130 -.
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Check Oxygen Sensor (O2S) and Oxygen Sensor control after Three Way Catalytic Converter (TWC).
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Check aging of Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) - G130 -.
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When replacing, erase learned values and adapt Motronic Engine Control Module (ECM) - J220 - to Throttle Valve Control Module -
J338 -.
19 -
Connector.
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Gold plated terminals.
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Black, 6-pin.
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For Heated Oxygen Sensor (HO2S) - G39 - and Oxygen Sensor (O2S) Heater - Z19 -.
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Component location: Right on underside of vehicle.
20 -
Oxygen Sensor (O2S) 1 bank 1 before catalyst -G39-*, 50 Nm.
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Component location: In front exhaust pipe.
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Remove and install with Oxygen Sensor (O2S) ring wrench 3337.
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Grease the threads only with G 052 112 A3"; "G 052 112 A3 must not get into the slots on the sensor body.
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If seal is leaking, remove and replace seal.
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Check Oxygen Sensor (O2S) heating for Heated Oxygen Sensor (HO2S). Refer to "Computers and Control Systems/Oxygen Sensor".
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Check Oxygen Sensor (O2S) and Oxygen Sensor control before Three Way Catalytic Converter (TWC).
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Check aging of Heated Oxygen Sensor (HO2S). Refer to "Computers and Control Systems/Oxygen Sensor".
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When replacing, erase learned values and adapt Motronic Engine Control Module (ECM) - J220 - to Throttle Valve Control Module -
J338 -.
21 -
Junction piece.
22 -
Non-return valve.
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Observe installation position.
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White connector faces towards Secondary Air Injection (AIR) Solenoid Valve - N112 - / Intake Manifold Change-Over Valve - N156 -.
23 -
Vacuum line.
