Left Front Exhaust Pipe With Catalytic Converter, Multitronic Transmission 01J
Left Front Exhaust Pipe with Catalytic Converter, Multitronic Transmission 01J
Special tools, testers and auxiliary items required
• Ring Spanner 7-Piece Set (3337)
• Engine/Transmission Jack (VAG1383A)
Removing
- Pull rear engine cover off - arrows -.
- Remove cover - 1 - in engine compartment (right side).
- Remove solenoid valve retaining plate - 3 - - arrows -.
- Disconnect air duct hose - 1 - at Mass Air Flow (MAF) Sensor (G70).
- Disconnect crankshaft housing ventilation hose - 4 - from air duct - 2 -.
- Remove screw - arrow - and remove air duct - 2 - from Throttle Valve Control Module (J338).
- If equipped, disconnect hose - 1 - from air duct.
• To improve clarity, shown from the rear with the engine removed.
- Remove cover - 1 - in engine compartment (left side).
- Remove coolant expansion tank - arrow -.
- Disconnect electrical connection to Engine Coolant Level (ECL) Warning Switch (F66) at bottom of coolant reservoir and tie aside coolant reservoir with coolant hoses - 1 to 3 - connected.
- Remove vacuum hose to brake booster - arrows -.
- If equipped, remove heat shield for left connectors at bulkhead.
- Remove harness connectors - 1...4 - from bracket at left of bulkhead.
- Disconnect the electrical connectors - 1 - and - 4 -.
- Free up electrical wiring to oxygen sensors.
- Remove Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131) - arrow - using oxygen sensor ring spanner (3337/7).
• To improve clarity, shown with the engine removed.
- Remove nut - 2 - accessible from top from exhaust pipe/exhaust manifold threaded connection.
• To improve clarity, shown with the engine removed.
- Remove left front wheel.
- Loosen screws or quick-release fasteners - 1 - and - 2 - and remove front noise insulation.
- Remove quick-release fasteners - 3 - and remove rear noise insulation, if installed.
- Remove front crossmember by removing screws - 1 to 4 -.
• Flex joint in front exhaust pipe must not be bent more than 10 °, otherwise it may be damaged.
- Disconnect exhaust system at both clamping sleeves - arrows -.
- Place plunger of Engine/Transmission Jack (VAG1383A ) with a block of wood inserted in between - 1 - beneath rear crossmember.
- First unscrew bolts - 1 - and - 2 -, then bolts - 3 - and - 4 -.
- Slowly lower rear crossmember using Engine-/Gearbox Jack (VAG1383A).
- Roll out Engine/Transmission Jack (VAG1383A).
- Remove nuts - arrows - and remove rear crossmember.
- Remove heat shield - 1 - for left drive axle.
- Remove exhaust pipe mounting strap - arrows -.
- Free up oxygen sensor wire.
- Remove nuts - 1 - and - 3 - accessible from below from exhaust pipe/exhaust manifold threaded connection.
• To improve clarity, shown with the engine removed.
- Loosen lower nuts - 1 - at left and right engine mounts a few turns.
- Push transmission to right.
- Remove front exhaust pipe with catalytic converter.
Installing
Installation is performed in reverse order of removal, noting the following:
• Replace gaskets and self-locking nuts.
• The threads of new oxygen sensors are coated with assembly paste; the paste must not get into slots of oxygen sensor body.
• When re-using the old oxygen sensor, grease the threads with hot bolt paste; the paste must not get into slots of oxygen sensor body; hot bolt paste.
• During installation, all cable ties must be re-installed at the same location.
• Oxygen sensor wires must always be secured in the same position when installing so that contact with the exhaust pipe is avoided.
- Install subframe.
- Align engine free of tension.
- Align exhaust system free of tension. Refer to => [ Exhaust System, Aligning ] Procedures.
• Individual exhaust system mounting parts on transmission for vehicles with multitronic transmission 01J => [ Individual components of left mount for vehicles
with 01J automatic transmission ] Exhaust System Component Overview
Tightening Specifications
