Hi there, I am a girl and don't really know much about cars so please bear with me. We have just purchased an Audi A4 1.8T, 2013 Model. I have it for 3 weeks now and this is my 3rd Audi. The problem : it has an intermittent jerk. It occurs at low (70KMPH) and high speed (130KMPH). I took it back to Audi and had the branch manager test drive it......it didn't happen! He did however tell me that he drives the same car and he knows what I am talking about but that it happens when it senses a change in pressure. I have never experienced this with my previous cars and they were both A4's which were2009 and 2011 models. I am afraid that it might be an indication of an underlying problem and it is being overlooked because its a brand new car that has obviously passed its tests.

Does anybody know what it could be or has anybody else experienced it?

 

it could be several things

try unpluging your mas airflow sensor and see if that solves the problem, if it does it means your maf is dying. its really easy to do takes about 2 seconds. drive it on the freeway and see if it helps.