togaclk55

Drivers side motor mount started leaking last week so I replaced both motor mounts and tranny mount. Both motor mounts were collapsed and tranny mount had a small crack. I used E55 motor mounts because I heard they were stronger. We dropped the sway bar and lifted the engine from the bottom to wiggle the mounts in and out.

NardoNZ

so E55 mounts are definitely a 100% direct fit to the w209 55?

togaclk55

Yeah...betreza has them on his car also

NardoNZ

so would that cause more vibrations?

elijah

I think its the other way around, no?

NardoNZ

I have no idea tbh... I was thinking like with suspension, the softer, the smoother the ride... It might be completely different with these mounts... please enlighten me!

togaclk55

I think they are just stronger than the stock ones

Clkboi

Are they a fit only for the 55 engines or they fit all w209?

M-bENZ

yea...are they fit all W209 ( 350,500,550)?

discoduck

I'd imagine they only fit the V8s

Rudeney

The part numbers for the CLK320 vs. CLK350 vs CLK500 vs. E55 are all different. Here are some motor mounts:

CLK320 = A2032411113 (L&R)
CLK350 and E350 = A2112402617 left, A2112402717 right
CLK500, CLK550, CLK55 and CLK63 = A2202400617 (L&R)
E55 = A2202402717 (L&R)
E63 = A2112403117 (L&R)
E320 = A2302400117 (L&R)

The E500/550 is more complicated - they have four different mounts based on chassis numbers. Also, the mounts on the W211 are different for 4MATIC models. Anyhow, I just found this interesting. My guess is that the actual mounts will fit across all of these engine/model combinations, but they are just tuned differently. I am not sure I'd use different mounts. The science of vibration isolation is not as simple as "softer = smoother". You have to consider harmonics, and how much you want the engine to move before stopping it.

M-bENZ

I will stick w the w209 mounts then lol

Louie D

^Ditto^ Hey Andy hope all is well

M-bENZ

What's up Louis? Is that a C63 Rims Rep on ur sig pics? I just ordered a set of C63 Rep . Will post pics when I have them installed . I'm sure it will looks good on my car because my color.

Louie D

Andy.

They are OEM AMG wheels came off a 2007CLK63 Cab had them for a few months now. They are pretty nice I love they look. Sorry about the thread hijacking back to the regular programing

chrono12

Rudney, maybe you can enlighten me a bit. On the Parts.com diagram for the CLK350 they have left and right Front mounts, but they also list a single part for a Rear mount. I just need one of those correct?

I'm planning to update most all the rubber under my hood soon, seeing as I'm just breaking 90k miles. Also in my service it is recommending I do all my spark plugs at 91k. Do you recommend I go ahead and hit anything else under my hood?

Thanks in advance, you guys!

Rudeney

That's correct - there are three mounts, left, right and a single one for the rear.

chrono12

Thanks!

waveterrorist

do you think it is possible with jack stands and floor jack to r&r the mounts?

Rudeney

You should be able to do this without a lift. One thing about the W203/W209 chassis is that it has front rear center jack points. There is a large rubber block under the engine on the front that can be used as a jack point, then you place jack stands behind the front wheels on the front side jacking blocks. On the rear, you can jack against the main differential housing (use a block of wood or rubber to protect the housing) and then place jack stands in front of the rear wheels on the rear side jacking blocks. You should now be able to do the job. Keep in mind that you need to lift the engine, which requires removing the exhaust. The engine is to be raised from the top - not jacked from the bottom or you may damage the oil pan.