Hi everyone, please help!

I went to look at a Audi A3 TDI and when i took it for a spin i got to 80mph and i couldnt go any faster. When i got back the owner said this happens when its cold to protect the engine. Ive never heard of this, so is the true?

Hey,

I haven't heard this before but it could be possible. When you say 'it didn't got faster than 80' did the car still feel comfortable or was it clearly struggling and shaking about?

Blocked cat-converters can results in big loss of power though this is at less speed. Normally 40phm and when you put your foot day the car feels like it's choaking and shutters back and forth violently while moving until you remove your foot from the pedal. Ask at an Sufi garage to see if the 'protecting the engine' is true. That's what I'd do.