Hi guys,
So I have a 2004 A4 1.8T. I have recently noticed that my car has pretty strong vibration when I have my foot on the accelerator. It doesn't really begin to shake until I get up to speed (55-60) and is even worse when I'm on the interstate going 75-80. It seems to be coming mainly from the left front. I know that it isn't due to being unbalanced or out of alignment. I recently had this done. It does not vibrate if I am at idol, or in neutral. Any ideas what this could be?

 

Could be a bad tire, swap your wheels front to back and see if things change. Also, make sure all front end components are in good shape: struts, ball joints, tie rod ends, etc..

 

yea i had the same issue. I bought all 4 new tires and then BAM! no more vibrations the car accelerated better.

 

I actually just bought all new tires this past weekend. The vibration is still there. It's so weird.

 

sounds like you might have a bad drive shaft

 

LOL this guy^ either they did a bad job at balancing or sounds to me like its more on the tires are they balanced ? any dirt on the inside rims can cause that too

 

I would be checking your tie rods and control arms. If anyone of those is bad you'll notice play in the steering wheel and experience vibrations as speed. Bumps on the highway will also agitate the vibrations as well.

Jason