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audi shaking on drive

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Old Sep 17, 2013 | 02:37 PM
  #1  
sharabm's Avatar
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Post audi shaking on drive

I have a 2007 Audi A4 2.0 turbo quattro. It shakes on drive and is smooth on park. I can't feel much with driving. The audi dealer told me this is normal for this car. The did a computer diagnosis and told me nothing is wrong. The engine mounts was not leaking and states that that's ok. It drives me crazy. You can see it shaking like a wave. Can anyone help?
 
Old Sep 19, 2013 | 05:41 PM
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From: Kitchener, Ontario, Canada
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is it shaking at certain speeds or does it shake all the time when you are driving no matter the speed you are going at. Where is it shaking from? Steering wheel? Pedals? is it shaking from the front only? rear only? or whole car?
 
Old Sep 21, 2013 | 07:15 AM
  #3  
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Default audi shaking

Thanks for the reply.
The whole body frame shakes/vibrates when you shift from park to drive..It is not noticible with driving. It's smooth on neutral or park. No probs with braking, driving or other conditions. Yesterday I took it to a private mercedes mechanic who replaced the transmission mounts. It made no difference. It cost me $600.
 
Old Sep 21, 2013 | 01:16 PM
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These 2.0t engines are not the smoothest idling engines. Matter of fact the 09 TFSI revision changed the balance shafts to help with the problem. I came from a Jetta GLX with the VR6 which was smooth as butter to this engine and was suprised. Even Consumer Reports in their 2006 review of the car commented on the engine vibration not being in character with this caliber/price point of car. They even went as far to say that the same engine in a Passat or Jetta was smoother. I don't know what your idle speed is, I have the manual, and mine is about 750 rpm's when the engine is warm. That's really low for a 4 cylinder engine. Most 4's idle around 900 rpm. Some guys on the forum have has success with getting a vag/com and upping the rpm in small increments to the point at which the vibration was much reduced. Its possible by putting your car in drive, you are loading the engine, which drops its rpm just enough to hit the resonance frequency of the engine making the vibration really noticable.
 
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