[skipndallas]

Told that I need replace both my engine mounts, which have "collapsed." How much should this reasonably cost. Also, if I'm not noticing any major driving problems, do I have to replace them? What's the danger if I don't?

 

['91 300CE]

Replace them... it will mess up your transmission as the engine is not perfectly lined up with it.

I just had mine done... both the engine mounts and the transmission mounts... total at the dealer was 550.00.

I don't understand why people try to not do maintenance... especially when something needs to be replaced. If they weren't needed, would they be there?

 

[skipndallas]

Thanks

Thanks for the input. The dealer didn't mention anything about the transmission line-up and made it sound like it only affected the "ride." Cost quoted was $635 ONLY for engine mounts, not the transmission mount, which sounds expensive to me after searching parts prices of between $80-$100 per mount. Part of my cost calculus also is the value of the car--a C220 with 100,000 miles with residual value of only $4,000 to $5,000. Of course, if it's absolutely necessary for continued performance of the car, then it makes sense, which otherwise has been great.

 

[Mercedes Benz of Florida]

Told that I need replace both my engine mounts, which have "collapsed." How much should this reasonably cost. Also, if I'm not noticing any major driving problems, do I have to replace them? What's the danger if I don't?

Do the Mounts Yourself and Save a Bundle of Money.
It's really not that hard. Laborious Yes. Hard? No.
Expect to spend the Weekend to do it; but that's because you
may not have ever done it before.

Did you check with an Independent/Indy Mechanic yet? Price $$$-wise?

 

[xvvvz]

Usually the big reason for changing the engine or tranny mounts is that it will cut down on the vibration at idle which usually becomes very noticable when the mounts collapse with age.

 

[juxtamit]

Told that I need replace both my engine mounts, which have "collapsed." How much should this reasonably cost. Also, if I'm not noticing any major driving problems, do I have to replace them? What's the danger if I don't?

If your going to have your engine mounts done you might as well get the trans mount done too. Replace the entire system if you will, so everything will be fresh. A broken motor mount will result in a minimal 20% loss of horse power. Your gas mileage will also be effected.

 

[Benzonline]

Im contemplating in doing this aswell. I noticed more vibration recently.

Around what mileage do they usually go on the W202? Im at 75,000 miles.

 

[xvvvz]

I don't know, but this point, I think it is as much an issue about age as mileage in many cases.

 

[Metafly]

I did a search for DIY mount replacement (Engine and Tranny) to no avail. Anyone know where to find instructions on how to? I have a 1994 C280. Thanks. Michael

 

[spaniasc]

Front and rear engine mount replacement with the engine in the vehicle is covered well in the Haynes series manual for my vehicle and is in the Engine chapter. If it is not covered in yours you might try the 123 chasis and see if it is similar.

 

[W321]

Usually the big reason for changing the engine or tranny mounts is that it will cut down on the vibration at idle which usually becomes very noticable when the mounts collapse with age.

Indeed!

The mounts on my car are in the initial phase of giving up.

Will replace them today.

 

[W321]

I did a search for DIY mount replacement (Engine and Tranny) to no avail. Anyone know where to find instructions on how to? I have a 1994 C280. Thanks. Michael

Just in case you still need a "how to", you may be interested in this: Howto: Change engine mounts - MBClub Forums

 

[cobragt50]

E500 Engine Mounts

I replaced my 2003 E500 Engine Mounts last friday. I found that removing the exhaust on both sides makes getting them out alot easier. Its not a bad job, took me about 2 hours with the car on ramps and using a floor jack and 2 x 6 to raise the engine. The driver side was broken in two pieces and the passanger side was cracked. Got my mounts on E-Bay 2 for $119.

 

[liquidusculade]

in my c220 there is no need to remove the exhaust. just simply undo the bolts top and bottom while removing just a little interferance such as the windshield washer resevior and maybe the intake manifold support, then jack the engine up, slide the old ones out, and put the new ones in. i did one side at a time. the hardest part was breaking free the stuck bolts.

 

[M275]

I'm in the process of doing my motor mounts in a week. I just did the tyranny mount 3 weeks ago. If the tranny and engine align with the mount, if changing the tranny mount and not the engine mount at the same time put extra stress on the tranny mount?

 

[swampmonkey]

A broken motor mount will result in a minimal 20% loss of horse power. Your gas mileage will also be effected.

minimum 20% loss of horsepower? how come?

---
looking to replace the enginemount of a 604.910 220diesel w202.
the car probably isnt worth the cost of a new enginemount..

could i fit a mount from a om603 or something like that? are they different other than the hardness/strength? different geometry?

 

[CopperDeer]

It isnt a loss of horsepower but a loss of the drivetrain's ability to put that power to the road. You'll notice a much better throttle response and handling with new motor mounts.

 

[jc1kz]

Google is your friend....
Here are the videos for replacing the motor mounts left and right sides....

https://www.youtube.com/watch?v=6bxPK1VcKOo

https://www.youtube.com/watch?v=y5owJViMvc8

 

[Olly84]

Try to find a shop that will install parts that you purchase yourself and bring in.

For my 1999 C230K, I purchased (2) engine mounts for $160 and a (1) transmission mount for $40.00. That's a total of $200 in parts. The shop I brought them to installed all 3 mounts for $250 labor for 2.5 hours.

That's a total of $450 since I brought my own parts in.

Every other shop denied my request of bringing in my own parts citing warranty issues even though the parts that I brought in were going to be nicer than the shit parts they were going to purchase. I got quoted $700 by most shops to do everything for me.

The car ran much more smoother after installation of new mounts.

 

[CopperDeer]

^^^ That is your best bet.

It seems that your engine still uses the same mounts as other w202s so I don't think you'll be able to use anything else. The OEM brand is Lemforder, that would be my first choice if you can find those for a reasonable price. I was lucky because RockAuto carried all 3 for about $130 shipped at the time but I'm not seeing the motor mounts listed anymore, just the tranny mount. You should replace all 3 at the same time.

I'm pretty good with a wrench and it took me close to 2 hours to change all 3 mounts, just from having to finangle the new mounts thru tight spaces and removing a few things that are in the way. But I would highly reccommend you go for the investment, it really is like a new car with new mounts.