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Have you guys used the CLK Black engine and trans mounts?
Note: This was on my C55 but it uses the same mounts as the E55. I thought you guys might find it interesting.
A buddy and I ran up to the shop yesterday to install the new motor mounts. Mine had really let go and the engine was flopping like a fish on dry land. It didn't take long to discover that the problem with my mounts was a missing bolt under the driver's side. It turns out that engines don't like sitting still when they're not bolted down.Who woulda thunk it?
Despite that discovery, we threw the new mounts in anyway. The passenger side was sitting a touch low (rubber skirt covering the lower body) and likely took a beating without the driver's side being bolted down. Yes, I torqued down the driver's side bolt.
Anyway, the mounts slid right in with no issues other than the typical fussing you get when changing these mounts. I expected the fat rubber blocks on the wider transmission mount to be a tight fit into the transmission mount bracket but there is still a gap on each side. That allows freedom of movement and does not transfer vibration.
I noticed that the engine didn't seem to move about quite as much when brake torqued. There does not appear to be any unwelcome vibration from the engine making it's way into the chassis. Strangely, though, the engine note under heavy throttle has changed a bit. It just sounds a touch different. I imagine that's from a bit of harmonics previously absorbed by the stock squishy mounts.
The CLK63 Black mounts are 240-240-08-17 and have a dealer cost $30 lower than the standard 220 engine mounts used in our cars. The transmission mount is 171-240-01-18 and is about $80 more than the standard 212-240-08-12 mount used in most applications.
I like them. They make a good foundation for additional performance mods.
The pics show the CLK63 Black mount on the left and the standard 220 part number on the right. The pics are wee bit misleading. The top bolt hole only looks bigger on the Black mount. It uses the same bolts as the stock piece.
CLK63 Black on left 220 on right. CLK63 Black on left. 220 on right.
I will post pics of W211 E55, W204 C63, and W212 E63S. None of them are interchangeable. They are physically different.
Yes, the M157 mounts are different. I was thinking M156 when I posted that.
No need to post pics of the E55 mounts. I have them in stock and on the counter next to me. Yes, they have different part numbers. However, speaking as a machinist, they are dimensionally the same.
Regardless, the transmission mount in those cars is the same old floppy piece that went in almost everything, including G-wagons. The Black trans mount goes a long ways towards reducing engine flop.
Yes, the M157 mounts are different. I was thinking M156 when I posted that.
No need to post pics of the E55 mounts. I have them in stock and on the counter next to me. Yes, they have different part numbers. However, speaking as a machinist, they are dimensionally the same.
Regardless, the transmission mount in those cars is the same old floppy piece that went in almost everything, including G-wagons. The Black trans mount goes a long ways towards reducing engine flop.
The W204 C63 mounts are not dimensionally the same. There C63 has ears on it and straight up and down. W211 E55 etc are round without ears and angled. I have both at home and will take pics
The W204 C63 mounts are not dimensionally the same. There C63 has ears on it and straight up and down. W211 E55 etc are round without ears and angled. I have both at home and will take pics
Okay, let's try this again. There is no need for photos. I have two brand new engine mounts sitting beside me. After all, I'm working the parts counter as I type this.
I was wrong (and not at work) when I said 204 and 212 mounts were the same. The engine mounts are different. The transmission mount is the same.
The CLK63 Black mounts will fit the 211 cars, including the E55.
Interesting, the 240 part # means it's for a Maybach? that's unusual as they are V12 and the mounts are different. Strange also that the black series trans mount is a 171 part, but maybe it's stiffer from factory. Normally the SLK trans mount is a very common failure item.
Interesting, the 240 part # means it's for a Maybach? that's unusual as they are V12 and the mounts are different. Strange also that the black series trans mount is a 171 part, but maybe it's stiffer from factory. Normally the SLK trans mount is a very common failure item.
Yes, these are Maybach mounts used for the M285 and CLK Black.
The failure prone 171 mount is the same one used in tons of cars.
This 171 mount was designed for the SLK Black that was not available in the US. It was also used in the CLK Black.
Now go back and reread what I posted today.[/QUOTE
Have a little appreciation for blackbenzz. He is just giving accurate information. He is also one of the longtime and most frequent contributors to this forum. He knows his ****.
Have a little appreciation for blackbenzz. He is just giving accurate information. He is also one of the longtime and most frequent contributors to this forum. He knows his ****.
I have no doubt.
I said that I was wrong and corrected the info. Why keep going down that path? Let it go and move on.
The engine mounts work well. I thought I'd share with the hot rodders in the E55 community. It seemed appropriate and I did not know if others had tried it.
There is no doubt that the transmission mount will fit.That part alone will go a long way towards reducing slop without the vibration and stress of a solid or thick poly mount.
I can make those, too. That's a fairly simple job. In fact, I made a set for my old twin turbocharged distributorless fuel injected 440 that powered my 1965 Plymouth Belvedere. Yes, a machine shop at home is a beautiful thing.
Since this car is a daily driver that sees 60+ miles per day I opted for something that would absorb a bit more vibration than polyurethane.
09-30-2018, 03:28 PM
