2007 530i , Iv'e replaced motor mounts and tranny mounts but still have a vibration under my car. Really only happens under a load starting from slow speeds, my shop is suggesting possible torque converter issues, they are checking to see if the fluid is low. Does this sound correct ?
Have you checked the guibo and center support bearing?
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Yes ,I replaced it the same day as the tranny mounts
Is your car RWD or AWD?
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Is it a studdering vibration that only happens under light throttle when driving slightly uphill? If you accelerate quickly through the gears does it not occur? If so maybe you should look at getting the transmission oil changed. It costs quite a bit to do properly though. The best way is to change the oil pan as it has a built-in filter that you cannot replace separately. There are aftermarket oil pans that you can buy for about $100, the genuine oem pan costs a few hundred dollars depending where you buy it from. I didn't want to risk a leak so I had only the genuine BMW/ZF gaskets and oil pan installed. There is also transmission oil additives that you could try, I have never used any before though. If you Google "transmission additives ZF" there is more information on the Jaguar forum (Jaguars also use ZF transmissions).
Last edited by BMWFRM; 04-27-2018 at 11:56 PM.
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