after few things that I have been dealing with, I figure it's time fro the diffy oil.
Any particular brand of oil or the mercedes oil will do?
Can somebody please tell me the torques for the fill and drain plugs and if there is anything important before I give it a go?

thanks for your time

ACM

make sure you take the fill plug out FIRST! if you can't get the fill plug out theres no reasont to take the drain plug out. Spray the bolts with some penetrating oil multiple times a few days before you intend to change it and it will make the bolts much easier to get out. I used 80w90 even though it calls for 75w90 because I couldn't find 75w90 at the autoparts store. Mobile 1 synthetic is the best fluid IMO, i'm sure MB fluid is good too (but over priced)

A location filled in on your profile would help alot for a question like this. The weight you should use is climate dependent.

Have a great day,

thanks for your responses so far.
i live in New Orleans, but I do not see how is that related.
Do you mean that I should choose a higher viscosuty oil in a hot place such new orleans?
Thanks

Yes, it makes a difference just like engine oil weight is determined by climate.

In your case 80W90 or 85W90 will be best. Brand is not that important, but I would not use a store brand. I would use any of the oil company brands.

Good luck,

37 ft-lbs for both the fill and drain plugs.

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95 E320 Cabriolet, 169K