Left Front Exhaust Pipe With Primary and Main Catalytic Converter, Vehicles With Automatic Transmission

Left Front Exhaust Pipe with Primary and Main Catalytic Converter, Vehicles with Automatic Transmission

Special tools, testers and auxiliary items required

• Hose clamps up to 25 mm diameter (3094)

• Engine/transmission jack (V.A.G 1383 A)

Removing

• All heat insulation sleeves removed during engine removal must be reinstalled at the same locations during installation.

• All cable ties opened or cut during engine removal must be reinstalled at the same locations during installation.

- Remove rear engine cover - arrows -.





- Remove cover - 1 - in engine compartment (right side).





- Remove air guide hose - arrows -.





- Remove cover - 1 - in engine compartment (left side).





- Clamp off coolant hose - 2 - using Hose Clamps Up to 25 mm dia. (3094) and disconnect from coolant expansion tank.





- Seal connection using a plug that fits.

- Remove coolant expansion tank - arrow -.

- Disconnect electrical wire to Engine Coolant Level (ECL) Warning Switch (F66) at bottom on expansion tank and set aside coolant expansion tank with coolant hose - 1 - connected.

- Remove electrical harness connectors - 1 to 4 - from bracket at left of bulkhead.





- Disconnect connectors - 1 - and - 4 -.

- Remove bracket from bulkhead.

- Remove heat insulation sleeve on wiring harness and lay open wiring harness.

- Free up oxygen sensor wires downward.

- Remove left front wheel.

- Remove quick-release fasteners - 1 -, remove screws - 2 - and remove noise insulation.





• Decoupling elements in front exhaust pipes must not be bent more than 10° - danger of damage.

- Disconnect exhaust system at double clamps - arrows -.





- Remove heat shield - A - for driveshaft - arrows -.





- Remove bolts at transmission/driveshaft flange.

- Push driveshaft together with rear final drive. The constant velocity (CV) joints can move axially.

- Tie up driveshaft to body.

- Place lifting surface of Engine/Transmission Jack (V.A.G 1383 A) centrally on housing casing - arrow - and support transmission from below.





CAUTION!
The lock carrier must be installed.

- First remove bolts - 2 - and - 3 - and then mounting bolts - 1 - and - 4 - of subframe.





- Lower transmission and subframe using engine/transmission jack (V.A.G 1383 A) to dimension - a -.





• Dimension - a - = 50 mm.

- Remove heat shield - 1 - for left drive axle.





- Free up oxygen sensor wires at areas indicated by - arrows - on transmission.





• Illustration shows engine/transmission assembly removed.

- Remove bolt - arrow - at strap for left front exhaust pipe.





- Remove nuts - 1 to 3 - for left front exhaust pipe/exhaust manifold.





• Illustration shows engine/transmission assembly removed.

- Remove front exhaust pipe with pre and main catalytic converters.

Installing

Installation is in reverse order of removal, note the following:

• Replace self-locking nuts.

• During installation, re-install all heat insulation sleeves at the same locations.

• Secure all hose connections using hose clamps appropriate for the model type.

• During installation, all cable ties must be re-installed at the same location.

- Tighten nuts - 1 to 3 - of front exhaust pipe/exhaust manifold bolts uniformly in stages, align catalytic converter horizontally.





- Install subframe.

• Individual mounting components of exhaust system on transmission => [ Individual left mounting components - vehicles
with automatic transmission ] Exhaust System Component Overview

- Align exhaust system free of tension. Refer to => [ Exhaust System, Installing ] Exhaust System, Installing.

Tightening Specifications