Left Front Exhaust Pipe With Catalytic Converter, Removing and Installing (Vehicles With Automatic Transmission 01J)
Left Front Exhaust Pipe With Catalytic Converter, Removing And Installing (Vehicles With Automatic Transmission 01J)
Special tools and equipment
- 3337 Wrench, 7-piece set
- Engine/transmission hoist
- Locking compound G 052 112 A3
Removing
- Remove rear engine cover (arrows).
- Remove cover -1- in engine compartment (right side).
- Remove bolts for holding plate -3- for solenoid valves (arrows).
- Disconnect intake air hose -1- at Mass Air Flow (MAF) sensor.
- Remove hose -4- from air duct -2-.
- Remove bolt (arrow) and disconnect air duct -2- at throttle valve control module.
- Disconnect hose -1- from air duct.
NOTE: Illustration shows the air guide from rear with the engine removed.
- Remove cover -1- in engine compartment (left side).
- Remove coolant reservoir (arrow)
- Disconnect electrical wiring to Engine Coolant Level (ECL) warning switch -F66- at bottom of coolant reservoir.
- Tie coolant reservoir with connected coolant hoses -1 to 3- to side.
- Disconnect vacuum hose to brake booster (arrows).
- Remove heat shield for harness connectors at left of bulkhead, if installed.
- Remove harness connectors -1 to 4- from bracket at left of bulkhead.
- Disconnect electrical harness connectors -1- and -4-.
- Move wires to oxygen sensors clear.
- Unscrew oxygen sensor behind catalytic converter (arrow) using special tool 3337/7.
NOTE: Illustration is shown with engine removed.
- Remove nut -2- for exhaust pipe/exhaust manifold which is accessible from top.
NOTE: Illustration is shown with engine removed.
- Remove left front wheel.
- For vehicles with auxiliary heater, remove bolts (arrows) for exhaust pipe of auxiliary heater on sound insulation.
- Remove bolts or release quick-release screws -1- and -2- and remove front sound insulation.
- Remove quick-release screws -3- and remove rear sound insulation, if present.
- Remove bolts -1- through -4- and remove crossmember.
NOTE: Flex joint in front exhaust pipe must not be bent more than 10 degrees, otherwise it may be damaged.
- Disconnect exhaust system at both double clamps (arrows).
- Remove VAG1359/2 universal mount from VAG1383A engine/transmission jack and insert a piece of wood -1- instead.
- Support rear crossmember using VAG1383A engine/transmission jack.
- Remove bolts -1- and -2-, then bolts -3- and -4-.
- Slowly release rear crossmember using VAG1383A engine/transmission jack.
- Set aside VAG1383A engine/transmission jack.
- Remove nuts (arrows) and rear crossmember.
- Remove heat shield -1- for left drive axle.
- Remove bracket for front exhaust pipe (arrows).
- Expose oxygen sensor wire.
- Remove nuts -1- and -3- for front exhaust pipe/exhaust manifold which are accessible from bottom.
NOTE: Illustration is shown with engine removed.
- Loosen lower nuts -1- several turns on left and right of engine mount.
- Press transmission to right.
- Remove front exhaust pipe with catalytic converter.
Installing
- Installation is reverse of removal, noting the following:
NOTE:
- All cable ties opened or cut during engine removal must be reinstalled at the same locations during installation.
- Oxygen sensor threads are coated with an assembly paste. This paste must not contact sensor openings.
- Oxygen sensor wiring must always be secured in the same position when installing so that contact with the exhaust pipe is avoided.
- Replace gaskets and self-locking nuts.
Install subframe:
- Install engine free of stress.
- Install exhaust system free of stress.
NOTE: Individual mounting components for exhaust system to transmission on vehicles with automatic transmission 01J, see fig. 7.
Tightening torques
Component Nm
Front exhaust pipe with catalytic converter to
exhaust manifold 27
Front exhaust pipe with catalytic converter to
hanging strap 25
Mounting straps to transmission 25
Drive axle protection to transmission 23
Oxygen sensor to catalytic converter 55
Engine mount to console 23