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-   -   ML 350 bad camshaft balancer (http://www.peachparts.com/shopforum/showthread.php?t=415724)

Zig Freed 03-12-2022 10:39 PM
ML 350 bad camshaft balancer
 
Can anyone tell me if my 2007 ML350 is outside the range of bad camshaft balancers? My engine number is: 27296730 612083.

Thanks

Paulwho 03-13-2022 04:40 PM
Mercedes-Benz with the improved parts have engine serial numbers that are higher than:

M272 Engine Serial No. 2729..30 468993
M273 Engine Serial No. 2739..30 088611

Zig Freed 03-13-2022 10:54 PM
Thank you!

Zig Freed 03-14-2022 10:40 PM
I really believe the lightweight oil used in engines today is not sufficient for the heat. There is no way a base stock oil of 0 or 5w can change to a 30 or 40. I think a straight weight 30 synthetic is best. I had a German engineer tell me that a base of 10 cannot ever act like a 30 or 40 when it gets hot.

ILUVMILS 03-15-2022 12:01 PM
The oil has nothing to do with the balance shaft issue. The root cause was insufficient hardening of the sprocket resulting in premature wear....

Paulwho 03-15-2022 07:18 PM
Quote:
Originally Posted by Zig Freed (Post 4224112)
I really believe the lightweight oil used in engines today is not sufficient for the heat. There is no way a base stock oil of 0 or 5w can change to a 30 or 40. I think a straight weight 30 synthetic is best. I had a German engineer tell me that a base of 10 cannot ever act like a 30 or 40 when it gets hot.

Spend some time and educate yourself

https://bobistheoilguy.com/motor-oil-101/


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