Friday, 10 January 2020

VW Golf TDI Rusted Catalytic Converter Pipe Repair

A common fault on VW Golfs is that the exhaust pipe from the catalyst can corrode and rust leading to it falling apart. One option is to buy a new catalytic converter but with prices quoted starting at £280 I found an alternative at my local exhaust fitters, Maidstone Exhaust Centre, who have done hundreds of these repairs.

The exhaust side of the catalytic converter is rusted through and you can see straight through from side to side.

VW Golf Catalytic converter exhaust pipe rusted through
VW Golf Catalytic converter exhaust pipe rusted through
The old pipe is cut out at the catalytic converter, unbolted from the connector to the exhaust. You can see the cat in the right of the picture and the remaining exhaust clamp to the left at the rear of the car.

VW Golf rusted exhaust pipe cut out from catalytic converter
VW Golf rusted exhaust pipe cut out from catalytic converter
A new piece of stainless steel pipe is cut and enlarged to fit the hole in the cat. This new section is fitted in and welded onto the cat and clamped back on to the rear exhaust section.

New pipe welded on to corroded catalytic converter VW Golf
New pipe welded on to corroded catalytic converter on VW Golf

The total cost for the repair was £48 which seems like a bargain to get the car back to running normally and saves the cost of a brand new catalytic converter of hundreds of pounds.

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