Which rear diff oil?

[Vader63]

I'm doing a full service on my 2015 S212 E63 and I'm not too sure which is the correct rear diff oil for my car. One dealer is telling me its MB 239.71 75W-85 for which there seems to be two different part numbers, A001989880312 and A000989730411PDNW. And a different dealer is telling me its Castrol limited slip 75W-140 A001989520310. I was under the impression that my car (non S model) for the UK market came with an open diff but I might be wrong there.

Is anyone with access to EPC able to check this for me? My VIN is WDD2122742B208067

Cheers guys

 

[ube63]

If your car has open diff then 75W-85 is the correct fluid. You can use the limited slip fluid if you want, I think it will not harm the car but will cost you more.
The snip below is from owners manual, recommending Fuchs fluid (75W-85) for open diff.

 

[Spider10]

It doesn't have an LSD unless it's after market