This is why you should change your motor mounts
Thread Starter
MBWorld Fanatic!
Joined: Apr 2006
Posts: 3,062
Likes: 0
From: Houston, Texas
Dora the Explorer
This is why you should change your motor mounts
OK, so lately my car has rattled like crazy at idle. My belt tensioner had busted the bushing on it's shock absorber and that was rattling, so I thought that was the problem. After all of my recent repairs (belt tensioner and shock included), it rattled less, but was still horrible. It sounded like I was running with no oil in my car or something.
So I decide to replace the motor mounts. Man were they shot! this pic shows one of the old ones on the left and one of the new ones on the right. The old one had collapsed about 3/4" (2cm, eh). No wonder it was rattling. I got the new ones on ebay for $65+$10 for shipping. It took about 3 hours to do the job.
The rattling is now gone. I almost need to roll down the window in order to hear the engine. If you have 100,000+ miles on your car and haven't done this, I suggest you do - your W124 will drive like new again!
So I decide to replace the motor mounts. Man were they shot! this pic shows one of the old ones on the left and one of the new ones on the right. The old one had collapsed about 3/4" (2cm, eh). No wonder it was rattling. I got the new ones on ebay for $65+$10 for shipping. It took about 3 hours to do the job.
The rattling is now gone. I almost need to roll down the window in order to hear the engine. If you have 100,000+ miles on your car and haven't done this, I suggest you do - your W124 will drive like new again!
Member
Joined: Jan 2007
Posts: 76
Likes: 0
From: UK
W124 280E and a Mini R50
matt, before you chabged the mounts, when revved hard at idle, did the engine feel like it was going to drop out of the car? I heard it's the easiest way of checking the engine mounts.... My car shakes on idle (but only when it's warm) but when I reev the engine even to the red line, the car doesn't shake at all..so I guess it's not the mounts in my case..or am I wrong?
Thread Starter
MBWorld Fanatic!
Joined: Apr 2006
Posts: 3,062
Likes: 0
From: Houston, Texas
Dora the Explorer
Nope, mine only shook at idle and in drive. I was shifting into neutral at stop lights so that it would be less embarassing. It still rattled in neutral, but WAY less.
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,094
Likes: 0
From: Boston
is a German Tank
I can't feel my motor...the only reason I know it's running is when I pull up to local fast food order windows, the lifters make a beuatiful tapping sound
LOL does anyone else have the lifter melody going on??
MBWorld Fanatic!
Joined: Oct 2004
Posts: 5,816
Likes: 0
From: Orange County, CA
W124's
I use to have one once in awhile when I had the 300E. I always seemed to be low on oil when the valve lifters would tick. I added Oil and it went away.
Trending Topics
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,094
Likes: 0
From: Boston
is a German Tank
IT's not as bad as my ford probe's though, so it doesn't really bother me.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Oct 2004
Posts: 5,816
Likes: 0
From: Orange County, CA
W124's
Yikes, How did you manage to do it yourself? did you borrow an engine life or something? I imagine it would be a b*tch to do it in my car, but upon inspection recently, the motor mounts seem to be fine and also I'm not having any rough idling either.
MBWorld Fanatic!
Joined: Oct 2004
Posts: 5,816
Likes: 0
From: Orange County, CA
W124's
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,094
Likes: 0
From: Boston
is a German Tank
MBWorld Fanatic!
Joined: Oct 2004
Posts: 5,816
Likes: 0
From: Orange County, CA
W124's
It's been a year and I still haven't changed the oil on my car. LOL
Then again... I just got the car and the owner didnt drive it until I bought it from Feb-August. I think it's time for a change now... At least I know I'm not leaking oil since its always at the right level.
Then again... I just got the car and the owner didnt drive it until I bought it from Feb-August. I think it's time for a change now... At least I know I'm not leaking oil since its always at the right level.
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,094
Likes: 0
From: Boston
is a German Tank
It's been a year and I still haven't changed the oil on my car. LOL
Then again... I just got the car and the owner didnt drive it until I bought it from Feb-August. I think it's time for a change now... At least I know I'm not leaking oil since its always at the right level.
Then again... I just got the car and the owner didnt drive it until I bought it from Feb-August. I think it's time for a change now... At least I know I'm not leaking oil since its always at the right level.
wow...you must not drive often/long.
Thread Starter
MBWorld Fanatic!
Joined: Apr 2006
Posts: 3,062
Likes: 0
From: Houston, Texas
Dora the Explorer
I made an "engine adapter" for my jack (a 12" chunk of 4"x4" wood). I just did one mount at a time. There is a big crossmember that prevents the engine from falling out, unlike my previous cars with their transverse mounted engines that actually hang from the mounts, rather than sit on them.
Thread Starter
MBWorld Fanatic!
Joined: Apr 2006
Posts: 3,062
Likes: 0
From: Houston, Texas
Dora the Explorer
Oil changes can be done every 5k miles or so, but you need to top off around 3k.
MBWorld Fanatic!
Joined: Jul 2005
Posts: 3,094
Likes: 0
From: Boston
is a German Tank
