One of the better reasons to change your motor mounts (pics) - PeachParts Mercedes-Benz Forum

#1 08-31-2004, 06:25 PM

Here are some pictures. Its pretty self explanatory
*tear* off to get new oil lines at Halsey Import...
AND motor mounts.
I drove it about 4 miles with this oil leak...watching the oil pressure drop. I heard the inital hiss but figured I missed dodging some crap in the road. I knew the motor mounts were BAD but sheesh. Guess they and the seeping oil likes creeped up on me. THe trusty bug comes back into service :-D

Please no slaps on the wrists...yesterday, when this happened, I was coming home from my birthday dinner :-/
Time to get dirty.

Old300D · #2 08-31-2004, 07:44 PM

Good luck with that mess!

#3 08-31-2004, 07:47 PM

And it was all so spotless just a day ago
*sigh*
I plan on upgrading that pump too...probably most the reason that motor mount ate itself.

psfred · #4 09-01-2004, 01:28 AM

Yeah, that mount was well and truely squashed. Eliminate the oil dripping on it (power steering fluid?) or the new one will look like that pretty fast.

Bet it idles a lot smoother when you are done, too!

Peter

gsxr · #5 09-01-2004, 01:55 AM

Aaargh. Oil cooler lines are one of the worst jobs on a 617. (Actually there are a lot of really annoying jobs on a 617... like the starter, and alternator, and motor mounts... I'll stop there.)

BTW, the later OM602/603 turbo engines with oil coolers route the lines in such a way that this cannot happen. One more reason to move up to the newer chassis when funds permit! :p :p

Repair tip: Degrease engine first. Pull the old motor mount out. Replace both oil cooler lines (not just one). Then install the new motor mount. Might wanna consider doing the other motor mount too, it's probably shot as well. Having the mount out of the car makes the oil cooler line job a lot easier, IMO...

Hatterasguy · #6 09-01-2004, 05:02 PM

Wow what a mess, at least you stopped before you lost all of the oil! I would check that belt to, the heat from cutting into the hose might have messes it up. Also make sure to get the OE oil cooler hoses.

Look at it this way gsxr at least their oil cooler lines don't cost $351!. Not to mention they usually take out the threads on a $256 oil cooler as well.

#7 09-03-2004, 01:55 AM

Quote:

Originally Posted by Brandon314159

... I drove it about 4 miles with this oil leak....

I'm just curious to why you did not call a Tow Truck and save yourself a whole lot of clean-up and more...?

#8 09-03-2004, 01:58 AM

I heard the inital "hiss" but didn't know what it was...
in retrospect I figured out how far I drove after the leak began to where I stopped to see if anything was wrong...
wasn't in a location where I could just pull off and easily get a tow anywho.
Had I know what went wrong the instant it happened, I would have stopped somewhere sooner....but alas...

Hatterasguy · #9 09-03-2004, 09:04 AM

Brandon314159 does your SD have engine shocks? If so replace those and enjoy the smooth idle.

Eric Eliel · #10 09-03-2004, 01:45 PM

I'm kind of torn as to whether the oil cooler lines are worse than changing the half shafts. I've done both twice (2 different 300's). A shower is inorder after either operation. If I had a lift, I'd rather do the half shafts.

Hatterasguy · #11 09-03-2004, 07:26 PM

If I had a lift I wouldn't mind working on anything!

#12 11-24-2004, 12:41 AM

Quote:

Originally Posted by Hatterasguy

Brandon314159 does your SD have engine shocks? If so replace those and enjoy the smooth idle.

Engine shocks actually weren't bad...(had them disconnected for awhile while doing mounts)
I think it is the rack dampner bolt becuase my idle speed surges a little when the engine is cold and sometimes when it is warm it rocks and rolls in there
But others is just dandy swell..

Figured I would bump this for some newbies forgetting to check their motor mounts

whunter · #13 08-15-2010, 07:08 PM

to look at your engine mounts.