well i have this problem with my audi a4 1.8t 04 it vibrates like a crazy, only when i press the gas but when i let it go, the vibration stops if any one can help me by telling me what's the problem thank you ,, ooh this doesn't happen when the car is cold on when it heats up

 

Where are the vibrations coming from?

 

does it have power loss? does the check engine light come on or flash? coil packs are common troublemakers

 

well the thing is the vibration is only when is moving, but if you accelerate when the car is in parking it doesn't vibrate or anything and yes engine light is on does not flash

 

check for fault codes and check engine mounts

 

 

it wont misfire unless under load, and often times when the car is cold, they will be fine. get your codes pulled, i bet you have a misfire

 

it's not misfiring it only vibrates i don't lose any kind of power is the same it only vibrates when is moving

 

go get your codes read.... im sick of you already....

 

the reason for engine mounts is to prevent this happening ( when the car is under load the engine is forced to tilt ) a weak mount will cause vibration, a weak mount could be simply aged rubber or its bad