Would you repair or replace?
Member
Joined: Apr 2019
Posts: 158
Likes: 44
From: San Francisco
2011 E350 4MATIC Estate Wagon
W & S 212 motor mounts
- replace 4x CPS leaky sensors
- replace 2x chain tensioners
- (check missing check-valves?)
The regulars :
- (spark plugs & boots)
- (tranny ATF service)
- (engine oil service)
- (air filter)
the 212 Engine Mounts are oil filled bags which are prone to leaks from 70 - 100K miles, depending on driving style.
The Transmission Mount is of Rubber.
MBWorld Fanatic!
Joined: Oct 2002
Posts: 4,975
Likes: 1,343
From: Cincinnati
2010 E350 4Matic
Banned
Joined: May 2023
Posts: 209
Likes: 3
just looking
Dealer just said I needed motor mounts. I had bought one new one a while back, never installed because measuring the gap between the rubber and mount body was only a difference of 2mm, the mounts are the same today. In investigation, the rubber touching the mount body is when you change them, now my trans mount is very close to the limit, takes about 15min to change.
Resealing upper cam covers. It can be the covers, Cam Magnets, or just residue. I use Liquid-Moly Molygen oil with UV dye. They told me the same about mine. After cleaning and periodically checking with a UV light, I have had zero leaks for over a year. It still might be seeping or the tech simply didn’t clean it properly during or after the repair, something I’ve seen happen even with fixd customer service, but either way, I have no leaks.
The dealer just did my camshaft adjuster, and upon disassembly, oil from valve cover or vacuum pump had drained down onto the rear splash shield, at least 2 or 3 oz. of it in the shield. I cleaned it up and informed the SA. So, the dealer is expensive, but far from perfect.
Resealing upper cam covers. It can be the covers, Cam Magnets, or just residue. I use Liquid-Moly Molygen oil with UV dye. They told me the same about mine. After cleaning and periodically checking with a UV light, I have had zero leaks for over a year. It still might be seeping or the tech simply didn’t clean it properly during or after the repair, something I’ve seen happen even with fixd customer service, but either way, I have no leaks.
The dealer just did my camshaft adjuster, and upon disassembly, oil from valve cover or vacuum pump had drained down onto the rear splash shield, at least 2 or 3 oz. of it in the shield. I cleaned it up and informed the SA. So, the dealer is expensive, but far from perfect.
Member
Joined: Apr 2019
Posts: 158
Likes: 44
From: San Francisco
2011 E350 4MATIC Estate Wagon
212 Series Engine Mounts
Took my 2014 e350 sport in for a 70k mile service. Shop is telling me I need new engine and transmission mounts ($1400) and to reseal my upper timing cover ($1200). I like my car and would love to keep it for awhile longer, but don’t want to throw good money after bad. Given the vintage and value of the car at present, would you do these repairs or just buy a new car?
- replace 4x CPS leaky sensors
- replace 2x chain tensioners
- (check missing check-valves?)
The regulars :
- (spark plugs & boots)
- (tranny ATF service)
- (engine oil service)
- (air filter)
FROM JAXVIEW (S212 E350 Owner 2011 Wagon)
The 212 Engine Mounts are NOT rubber. These
2 mounts are oil filled bags which can leak over time. These need replacing if leaking, & the rubber trans mount should be replaced at same time.
$1400 is a good price.
my local SF Shop quoted $2000 for my 4Matic Wagon mounts several years ago because the engine has to be lifted out to get to right side mount due to the 4Matic mechanics.
I suggest that you follow Shop's advice on timing cover, assuming the shop is well regarded & capable, & you're not a do-it-yourselfer.
Last edited by Jack McCarty; Aug 13, 2025 at 05:25 PM. Reason: Grammer
Member
Joined: Apr 2019
Posts: 158
Likes: 44
From: San Francisco
2011 E350 4MATIC Estate Wagon
Replace Motor Mount oil bags
Thanks to everyone for the advice here. Just to add one detail here, this quote is from the most reputable indy shop I could find in the area. Stopped going to the dealer a couple of years back. I’m going to call another shop today just to check their prices, however if I’m going to invest this, I definitely want it done right. Sadly, aside from refilling wiper fluid, I’ve never done much of myself and am a bit wary of starting here.
The transmission mount is rubber & should also
be replaced.
