kvirikadzed

Hi , I have 2018 E63s with 65000 miles now ,
do far I’ve changed rear differential fluid about 4 times .

but I have never done front diff fluid change.

Do you have any information about how often front needs to be changed and how to change fluid?

I’m on my 3rd transmission fluid, I do it every 20K mile.

need help with front diff change instructions and some feedback if you have any for this car specifically.

bobblehead

https://www.benzworld.org/threads/di...erval.3020060/

see post #5

MB does not have maintenance intervals for front diff fluids change

i have only done the rear multiple times. Never the front.

Bigwinner95

I had the front differential fluid changed on my '18 w/90k miles right after I bought it. My indy shop said they use a pump tool to refill the diff through the drain hole.

I think it's tricky/finnicky though, cause I had to go back and have it redone as it leaked afterwards due to what they said was slight overfilling. I also read somewhere that it called for some type of sonogram tool to verify the correct level. My guys just went by ml measurments. Doesn't seem like it was meant to ever be changed-may want to leave well enough alone.

maxswede

don't flame me for my ignorance, but why are you changing fluids so often? I get that these aren't sealed for life, but 4x diff fluid change sounds like a lot...

bobblehead

I had changed mine (rear) about 4x as well (with 60,000 miles). I went by changing it at every 2 yrs. Did it at the same time when changing out brake fluids

maxswede

was that recommended by someone? dealer, mb indy, mb, forum?

bobblehead

just on my own. Same goes with oil changes (at every 5,000 miles), i did it more often than mb’s suggested intervals.