Tag: riem

Mercedes CLS55 AMG W219, Original Gates Serpentine Belt 1139970292 6K2449

Replaced the Contitech 6K2445 serpentine belt with an original Gates belt and was very surprised to see the actual difference. The ribs of the OE Gates belt are significantly thicker than the Contitech (Continental), something I did not expect to see.

Even though it’s way more expensive than the Contitech (about 70 euro vs 20 euro), I’m happy that I have chosen the Original OE option.

Partnr: 1139970292 6K2449




Mercedes CLS55 AMG W219, Upgrading To The Gates HD Fleetrunner Micro-V K080510HD 8PK1294 Supercharger Belt

It was apparent that the best in Supercharger belt would be the very popular green “Gates HD” belt, but it seems there is an even better one (more on that later).

When I ordered this belt, at the moment I thought this was the best that Gates had to offer. Its very popular as an upgrade belt and you will see it being used on many M113k engines (stock & tuned).

This belt should prevent slippage (meaning lost power) and will last a long time.

Partnr: Gates HD Fleetrunner Micro-V K080510HD 8PK1294

I have a stock supercharger pulley, so 1294mm is the correct belt length.




Mercedes CLS55 AMG W219, Replacing The Serpentine Belt

Replaced the serpentine belt, under the guise of “while I am in there”. It was quite a hassle, but unfortunately, I will do it again as this belt seems a little short to my liking. The tensioner has ample room to move this way, which is not how I like to see it.

I replaced it with a Dayco 6PK2440 belt if I am not mistaken.

New and old belt
Dayco belt in place