How tight do you tighten the oil filter?
How tight do you tighten the oil filter on a C300.
I think I must have overtightened mine causing the gasket to shift and leak.
I didn't have any problems on my first oil change last year. I think I kept turning it with a rachet wrench till you could tell that it had gone as far as it was going to go.
I must not have tightened it enough this time. I'm off to get a torque wrench.
Thanks
I now have a corner of my garage painted with mobile1 by hand tightening plus 1/3 turn.
You might want to hold off on the hand tightening till I get this resolved.
In another thread I asked the same question and someone suggested that I had the o ring in the wrong grove. I was certain their car was different until I looked at the instructions that came with the filter and sure enough, it goes in the second grove. I put it where intuitively it seems that it would go but that's wrong.
As for hand tightening, I don't know. I put the torque wrench on it to 25Nm and ran the engine for a while to see if it would leak. Didn't leak.
I'd like to thank vic and jog who joined in this discussion.
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But that wasn't the problem. I had put the big o ring on the top grove instead of the next one down like you're suppose to.
Ouch!
I use Automotive Wolf to track things. It would not let me forget.

There is a printed guide with the filter that shows you where to place the top O ring, its not at the top most positions, its one "level" down from there.
Did you drive very far, did you get much of an oil leak? That could really be a mess or could even cause an oil fire.
There is a printed guide with the filter that shows you where to place the top O ring, its not at the top most positions, its one "level" down from there.
Did you drive very far, did you get much of an oil leak? That could really be a mess or could even cause an oil fire.



