Which diff oil?

[ming666]

2016 C350e

I've just done a full service aside from the diff oil. The service sheet says:

Rear axle: Perform oil change (With code 471 ( Mechanical locking differential ) or with code 467 (Electronic locking differential)

I don't know which diff I have, is there a way to tell? I'm also not sure if it's telling me that there's a different oil for each or if it's the same oil and it just needs doing whichever diff I have?
Anyone enlighten me?
TIA

 

[W1ghty]

2016 C350e

I've just done a full service aside from the diff oil. The service sheet says:


I don't know which diff I have, is there a way to tell? I'm also not sure if it's telling me that there's a different oil for each or if it's the same oil and it just needs doing whichever diff I have?
Anyone enlighten me?
TIA

Use Opie oils website to search it .
It’s probably this one ??

FUCHS TITAN SINTOPOID FE 75W-85. 75W85 Fully Synthetic Gear Oil. Mercedes. 1 LTR | eBay

FUCHS TITAN SINTOPOID FE 75W-85. 75W85 Fully Synthetic Gear Oil. However, mixing with other gear oils should be avoided in order to fully utilize the product’s benefits. FUCHS TITAN SINTOPOID FE 75W-85 is sold in 1 litre plastic bottles.

www.ebay.co.uk

 

[ming666]

Brilliant thanks
Had online chat with them and they recommended same

reCAPTCHA Verification

Slightly cheaper from them although I'm not sure about shipping charges yet

For anyone else searching:
There are up to 4 different diffs, same oil for all of them, just the capacity changes (0.8-1.3lt)

Edit. Just phoned Mercedes as well. mine takes 1litre for which they want £42.24, although they didn't have stock (not that i was going to buy it) and it's on back order
Spec is 235.7 75w-80 in case that helps anyone else

 

[W1ghty]

Brilliant thanks
Had online chat with them and they recommended same

reCAPTCHA Verification

Slightly cheaper from them although I'm not sure about shipping charges yet

For anyone else searching:
There are up to 4 different diffs, same oil for all of them, just the capacity changes (0.8-1.3lt)

Edit. Just phoned Mercedes as well. mine takes 1litre for which they want £42.24, although they didn't have stock (not that i was going to buy it) and it's on back order
Spec is 235.7 75w-80 in case that helps anyone else

Fuchs is probably the factory fill oil anyway . I’ve used it in both my cars gearboxes and diffs . I can’t be paying the MB diff oil price when I change the diff oil every 35k

 

[190]

Edit. Just phoned Mercedes as well. mine takes 1litre for which they want £42.24, although they didn't have stock (not that i was going to buy it) and it's on back order
Spec is 235.7 75w-80 in case that helps anyone else

I think MB have given you the wrong information - no great surprise.

All of the approved 235.7 oils are 75w85 not 75w80. I doubt you would find a GL5 75w80 and I've never heard of that grade being suitable for a diff as it's too thin.

Assuming they got the 235.7 correct then the MB approved oil that I would use is Fuchs sintopoid FE 75w85 which shouldn't be too difficult to find.

 

[Trickythemerc]

When changing diff oil make sure you can get the fill plug out BEFORE you drop the oil out. Trying to fill it through the drain plug hole could be a tad difficult.

 

[ming666]

I think MB have given you the wrong information - no great surprise.

All of the approved 235.7 oils are 75w85 not 75w80. I doubt you would find a GL5 75w80 and I've never heard of that grade being suitable for a diff as it's too thin.

Assuming they got the 235.7 correct then the MB approved oil that I would use is Fuchs sintopoid FE 75w85 which shouldn't be too difficult to find.

Sorry my typo should read 75W-85. I'll correct the original
Oh. I can't any more! anyway you are correct.

 

[ming666]

When changing diff oil make sure you can get the fill plug out BEFORE you drop the oil out. Trying to fill it through the drain plug hole could be a tad difficult.

I have a a 57 year old VW, I'm familiar with the 'fill plug out first' procedure

 

[W1ghty]

When changing diff oil make sure you can get the fill plug out BEFORE you drop the oil out. Trying to fill it through the drain plug hole could be a tad difficult.

Just roll the car over onto some cardboard if that happens

 

[Spro368]

I have a a 57 year old VW, I'm familiar with the 'fill plug out first' procedure

I have put new oil in my engine only to see it run straight out. I was so keen to let every drop out over 20 minute period I forgot to put the drain plug back !!!