Bad engine mounts?
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Member
Joined: Aug 2009
Posts: 151
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1994 e320 sedan
Bad engine mounts?
Hi,
I can feel slight vibration while idling, but if I depressed accel and hold around 1000 rpm or 2000 rpm, no vibration at all.
Can this be bad engine mounts?
It has 167k miles and I believe that both of them have never been changed.
A new belt, a guide pulley, and a tensioning shock absorber.
Thanks.
I can feel slight vibration while idling, but if I depressed accel and hold around 1000 rpm or 2000 rpm, no vibration at all.
Can this be bad engine mounts?
It has 167k miles and I believe that both of them have never been changed.
A new belt, a guide pulley, and a tensioning shock absorber.
Thanks.
MBWorld Fanatic!
Joined: Apr 2007
Posts: 2,381
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E
Could be. Only real way to tell is to pull them off and see visually what they are like. W124 mounts are hydraulic so you should be able to hear fluid in them. Any cracks or dents, just replace them. IIRC they are like $40/each
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Joined: Dec 2006
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From: So Cal
92 500e, 95 E34 525I Touring
Replacing the engine mounts was one of the most rewarding repairs I ever did on my 300e. The symptoms point to them. Swap em out! I believe there is a decent writeup on here for it. Just be careful not to drop the bolt holding the mount on thr driver side into the crossmember like I and a few other guys ended up doing. Plus you will want to remove the air filter assembly completely. It's possible to do without removing it, but muuuccchh easier to do the driver side if u just take it off. Good luck!
Junior Member
Joined: Dec 2006
Posts: 45
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From: Stockholm Sweden
A190 500E C43 CLK430
Replacing the engine mounts was one of the most rewarding repairs I ever did on my 300e. The symptoms point to them. Swap em out! I believe there is a decent writeup on here for it. Just be careful not to drop the bolt holding the mount on thr driver side into the crossmember like I and a few other guys ended up doing. Plus you will want to remove the air filter assembly completely. It's possible to do without removing it, but muuuccchh easier to do the driver side if u just take it off. Good luck!
another Mercedes then first service surely would be eng/gearb. mounts.
BTW do you have a nice picture of your 500E for a change? Roger
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Joined: Feb 2007
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From: Connecticut, New Haven
95' AMG SeeThreeSix
This is the ONLY thing I have not done and I've been suffering with that vibration since day 1. Is it a basic procedure, loosen the mount bolt, jack the engine up via the mount bracket, pry out, put new one in and bolt up?
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^ Yep! Use a 2x4 on the jack so not to damage the oil pan. The right side one is a little fiddly to get to because its not a straight shot. If you want to make it easy...you can pull off the fuel distributor assembly (the whole thing air flap and all) as one unit. After its removed the throttle plate underneath is exposed, you can see and access the bolt very easy. No need to go crawling under the car trying to feel the top of the bolt. More time consuming though.
It may be a good excuse to pull it off so you can check for cracks in the distributor boot and the vacuum hoses underneath and clean everything all up.
It may be a good excuse to pull it off so you can check for cracks in the distributor boot and the vacuum hoses underneath and clean everything all up.
Last edited by ps2cho; Sep 16, 2009 at 08:28 PM.
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Member
Joined: Jul 2008
Posts: 103
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From: San Bernardino County, CA
04 Mercedes Benz C230K
Same thing happened to my dads W124 300E.
I was driving his car and was on a stop light all of a sudden when idling the steering wheel was shaking. We changed motor mounts.
I was driving his car and was on a stop light all of a sudden when idling the steering wheel was shaking. We changed motor mounts.
Senior Member
Joined: Jun 2008
Posts: 281
Likes: 4
From: IL / WI
Depends on the day
Senior Member
Joined: Jun 2008
Posts: 281
Likes: 4
From: IL / WI
Depends on the day
Well, I changed mine last night. Passenger side was cakewalk. After not being done for 103,000 on my car, those bolts were STUCK in there. Had to put all my 210lb body into breaking them loose. Drivers side was tricky. Other's went down by removing the air flow meter/fuel distributor and going down through the intake manifold. I tried something similar, but it didn't work out and I don't want to mess around with stuff I don't have to remove. I opted to take a tighter route, I removed the ignition coil put and put it to the side. Then just wiggle your arm in where the motor mounts sit and feel around for that 17mm bolt on top. Drivers side was WAY more difficult to break free than the passenger side. PB blast, let it sit for 5 minutes, add some more PB blast, then wait 10 minutes. Broke free easily.
Engine sits noticeably higher in the engine bay. ALL shaking is gone gone gone! My steering wheel went from jackhammer to "is the car on?" The difference is completely worth my bruised knuckles and stripped skin.
So if y'all are having some vibrations, it's time to do those engine mounts.
Engine sits noticeably higher in the engine bay. ALL shaking is gone gone gone! My steering wheel went from jackhammer to "is the car on?" The difference is completely worth my bruised knuckles and stripped skin.
So if y'all are having some vibrations, it's time to do those engine mounts.
MBWorld Fanatic!
Joined: Apr 2007
Posts: 2,381
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E
Well, I changed mine last night. Passenger side was cakewalk. After not being done for 103,000 on my car, those bolts were STUCK in there. Had to put all my 210lb body into breaking them loose. Drivers side was tricky. Other's went down by removing the air flow meter/fuel distributor and going down through the intake manifold. I tried something similar, but it didn't work out and I don't want to mess around with stuff I don't have to remove. I opted to take a tighter route, I removed the ignition coil put and put it to the side. Then just wiggle your arm in where the motor mounts sit and feel around for that 17mm bolt on top. Drivers side was WAY more difficult to break free than the passenger side. PB blast, let it sit for 5 minutes, add some more PB blast, then wait 10 minutes. Broke free easily.
Engine sits noticeably higher in the engine bay. ALL shaking is gone gone gone! My steering wheel went from jackhammer to "is the car on?" The difference is completely worth my bruised knuckles and stripped skin. So if y'all are having some vibrations, it's time to do those engine mounts.
Engine sits noticeably higher in the engine bay. ALL shaking is gone gone gone! My steering wheel went from jackhammer to "is the car on?" The difference is completely worth my bruised knuckles and stripped skin.
So if y'all are having some vibrations, it's time to do those engine mounts.
MBWorld Fanatic!
Joined: Feb 2007
Posts: 1,297
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From: Connecticut, New Haven
95' AMG SeeThreeSix
Bah! I guess I'll waste away some more green, it's only because I love her.....
would you guys go for aftermarket OE or strongly suggest that this is one of those rare "get it from the dealership OEM" parts??
would you guys go for aftermarket OE or strongly suggest that this is one of those rare "get it from the dealership OEM" parts??
Senior Member
Joined: Jun 2008
Posts: 281
Likes: 4
From: IL / WI
Depends on the day
Get your mounts at the dealership. Aftermarket cost half as much, but they'll only last half as long. That's the trade. The one's I put in were genuine Mercedes parts and you can feel it.
Senior Member
Joined: Jun 2008
Posts: 281
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From: IL / WI
Depends on the day
I'll still be buying rubber parts from the dealer. Some things are just worth to get at a dealership.
MBWorld Fanatic!
Joined: Feb 2007
Posts: 1,297
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From: Connecticut, New Haven
95' AMG SeeThreeSix
If I had a beautiful CE Sportline I think I'd take my butt to the dealership. I think autohausaz will suffice for now if its decent compared to the OEM stuff. Thanks for your suggestions guys!
. I think autohausaz will suffice for now if its decent compared to the OEM stuff. Thanks for your suggestions guys!
Senior Member
Joined: Jun 2008
Posts: 281
Likes: 4
From: IL / WI
Depends on the day
She's not THAT beautiful. lol
I don't think the dealership mounts are that much more expensive than the Autohaus ones. I'll give my local dealership a call tomorrow and see how much they are.
Newbie
Joined: Jan 2010
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'87 Merc 300E
Late to the party here but so grateful for all the comments and or concerns with the swap out of the motor mounts. Parts resourcing has changed so much since '14 with vast amounts Chineses investment in German auto part cos. Even venerable OEM German co's like Lemfoerder have gone the Asian investment route while equally iconic brands like BEHR are now making their radiators in S. Africa. "Times they are a changin" indeed....
