Volkswagen Golf Service & Repair Manual: Removing and installing catalytic converter

Volkswagen Golf Service & Repair Manual / 4- cylinder injection engine(1.4 1 direct inction. turbocharger) / Exhaus system / Emission control / Removing and installing catalytic converter

Note

The catalytic converter is removed together with the front exhaust pipe.

Special tools and workshop equipment required

High-temperature paste → Electronic Parts Catalogue.

Removing

Note

Reinstall all cable ties in the same locations when installing.

–	Detach electrical connectors -1- and -2- from bracket, unplug connectors and move electrical wiring clear.

Removing and installing catalytic converter

–	Unscrew bolt -2- and remove screw-type clip.

–	Remove bolt -1- and nuts -arrows-.

Vehicles with engine preheater heater element -Z97-

–	Unclip locking mechanism -arrow-.

Removing and installing catalytic converter

–	Pull off wiring -1- on engine preheater heater element -Z97--2-.

Removing and installing catalytic converter

–	Unscrew nuts -arrows- and remove engine preheating element -Z97- with bracket.

Continuation for all vehicles

Removing and installing catalytic converter

–	Unscrew bolts -arrows- of bracket.

Removing and installing catalytic converter

–	Unscrew right nut -arrow- of bracket.

Removing and installing catalytic converter

–	Unscrew nut -arrow- to the left of the bracket.

–	Remove tunnel cross-piece → General body repairs, exterior; Rep. gr.66.

Removing and installing catalytic converter

–	Remove bolts -arrows-.

–	Detach connector from retainer and lay wire leading to lambda probe to one side.

Removing and installing catalytic converter

–	Loosen clamp -arrow- and push it to rear.

Vehicles with four-wheel drive

Removing and installing catalytic converter

–	Unbolt flexible coupling of propshaft -1- from bevel box → Final drive, differential; Rep. gr.39.

–	Remove bolts -arrows-.

Removing and installing catalytic converter

–	Push propshaft -1- as far as stop in direction of -arrow-.

–	Remove catalytic converter with front exhaust pipe -2- downwards.

Continuation for all vehicles

Removing and installing catalytic converter

–	Fit screwdriver -2- in recess -arrow- on turbocharger and lever out seal -1-.

Installing

Installation is carried out in the reverse order; note the following:

Note

Renew seal and self-locking nuts.

Coat studs and bolts of catalytic converter with high-temperature paste; high-temperature paste → Electronic Parts Catalogue.

–	Aligning exhaust system free of tension → Chapter.

Specified torques

→ Fig. „“Installing catalytic converter - tightening torque and sequence”“

→ Chapter „Assembly overview - emission control“

→ General body repairs, exterior; Rep. gr.66

Removing and installing catalytic converter

Assembly overview - emission control

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