The transmission mounts don’t often go bad but here is an article since I had remove them in an unrelated job.This article just for share how to replace the transmission mount on a VW Passat TDI. It also applies to the Audi A4.
What tools you need for replace transmission mounts?
1.Sockets/wrenchs 13,15,16mm.
2.various extensions and u-joints
Procedure of Transmission mount replacement:
First loosen the front wheel lug bolts. It’s much easier to get access to the bolts with the wheels off.
Raise the car and rest it on jack stands at the factory jack points, making sure the car is safe and securely raised before getting under the car. Chock the rear wheels and double check all safety and jack equipment. Then finish removing the front wheel lug bolts and remove the wheel.
The passenger side mount bolt is covered by a heat shield. The driver’s side mount is the same except there’s no heat shield.
First remove the T-25 torx screw holding the plastic shields on each side around the driveaxles. Ignore the yellow arrow, the pic is from another writeup.
Once it’s off you can see the CV boot heat shield. You’ll probably have to remove it (3x 6mm allen bolts) for access.
Remove the heat shield (3x 10mm bolts) on the passenger side. Here it is removed. You can now see the 16mm bolt holding the transmission mount.
Here is another view with the transmission out of the car. The bolts are indicated by the yellow arrows below. You might be able to bend the heatshield to get access to the bolt but I didn’t want to.
The driver’s side is the same but there’s no heatshield.
Loosen all the 13 and 16mm mount bolts on both sides before removing any of them. This will hold the mount and transmission steady while you loosen the other bolts.
Counterhold the 16mm bolt on top of the mount while loosening the 15mm nut on the bottom. If you don’t counterhold it the bolt will just spin. Remove the 2x 13mm bolts holding the transmission mount to the subframe.
Place a wide, flat piece of wood under the steel transmission fluid pan and use a jack to support it. Don’t put the jack pad directly on the pan because it can dent the pan, changing the fluid level inside the transmission.
Use the jack to slightly lift the rear of the transmission to slip the mounts out.
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