Engine mount

[jtvang125]

Can't believe I'm having to replace these already and the car is only 8 yrs old. Passenger side has totally collapsed and the bracket has been rubbing against the mount. Getting horrible shaking during cold starts. Driver side will probably go out soon too. Fortunately they are only $50 each and I'm going to try and tackle the replacement myself this weekend. Never had any issues with the engine mounts on the handful of cars I've own in the past and all of them had atleast 10 years on them before getting rid of.

*update* Just got it done. Took me 3 hrs following online guides and using just jack stands to hold the car up and a hydraulic jack to lift the engine. Passenger side was pretty easy but for the driver side I couldn't figure out how to get the mount out after loosen cause there was no wiggle room. Almost gave up and have the shop finish it but luckily found a great tip online that suggested to remove a metal plate first. Had to look twice before realizing that it was removable.

Car feels like new now. Even the clunking when shifting from P to D is almost gone. I think if I did the trans mounts too it'll likely be eliminated. Saved myself $260, not bad.

 

[DaTT]

What car is this?

 

[jlee]

I've had engine mount failure on my '86 MR2, '91 MR2, and '04 CTS-V. I think the rear mount in my '06 Speed6 may be on the edge (or it's just really soft from the factory).

The more it's driven with a bad mount, the faster the other mounts will wear.

 

[Raizinman]

Many things can cause an engine mount to go out. Here are a few.
1) Contamination - such as engine oil when doing an oil change or oil leakage
2) Manufacture defect
3) Vehicle abuse - such as hard shifting

Certain makes and models of cars due to inherent design, create much more wear on the motor mounts. That is why it is necessary to know what make, model and year vehicle you have.

 

[jlee]

Many things can cause an engine mount to go out. Here are a few.
1) Contamination - such as engine oil when doing an oil change or oil leakage
2) Manufacture defect
3) Vehicle abuse - such as hard shifting

Certain makes and models of cars due to inherent design, create much more wear on the motor mounts. That is why it is necessary to know what make, model and year vehicle you have.

I find it hard to believe that motor mount rubber would not be oil-resistant.

 

[RLGL]

What has been ignored that is causing the failure?

 

[jtvang125]

It's a bmw 328. I found out that instead of using rubber BMW used some kind of gel. While vibrations are much reduced over rubber they fail much sooner too. I've seen some youtube videos where the mount has totally failed and the engine actually lifts up and hits the hood when given gas. There are other reports of the engine hitting the fan shroud too. Yikes!

 

[HarryLui]

Motor mounts are just rubber, rubber oxidized.