What's causing our Volkswagen Sharan to lose power?

We bought a 2005 Volkswagen Sharan automatic. It has done 121,000 miles on the clock, whilst we have only had it around one month and have had a service on it. The problem we are experiencing is that when the car is doing 40 or 50 mph it starts slowing down as if it uses up all it energy. We went on the motorway for the first time and it wouldn't go over 50 or 60. What could the problem be?

Asked on 17 July 2010 by ahmad raza

Answered by Honest John

Possibly a stuffed oxygenating catalytic converter blocking the exhaust system, so the car cannot exhale properly.

Tags: loss of power catalytic converters

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