Talked with a MB mechanic recently and he said the lines (seals) leading to the oil cooler start leaking around 400k. Not a fun repair to go through. Because it's a 8-10 hr job. If you want his number let me know. He does it on the weekend at his house
I heard that the oil filter housing cracks very easy and will cause leaking. It is because of a over zealous mechanic cranking it back one. Had mine replaced a while back.
So the cooler leak was more or less not to bad? How did it show, or where did the leak appear?
Would like his number, Thanks
Driver side of engine. If you have oil build up on starter then it's a good sign that those seals are leaking. They will leak more in the colder temps than warm.
Not bad in the beginning but like stated it gets worse in the cold. The oil collects on the cross members under the engine and will drip off that to the ground. Usually a row of small drip spots maybe 3 or 4 towards the rear of the motor.
Only one I know had 300,000 before the famous DEF sensor problems but it's not fixed
