04 E55 AMG differential fluid change
Posted: Tue Apr 20, 2021 7:19 pm
This WOULD have been a normal job except I was like....those drain plugs are allen and they are huge. I don't have anything that big. Apparently it's a 14mm allen driver. I ALMOST jury rigged it with a 14mm head grade 8 bolt and some jamb nuts but decided I had to go to O'Reilly's in Warwick to get a set. I got a 12, 14 and 17mm. "They" say that I will end up with some new tools with this car. They were right. All sizes of E sockets on this thing, for example. I will need a bigger set eventually but not today. The rear calipers are held on by E18 and apparently they are SUPER tight. But I digress.
Back home the fill plug loosened pretty easily with just a 1/2" ratchet. Then the drain plug came out fine and I drained it.
To fill I screwed around with different options and ended up using my old (but unused until recently because I forgot I had it) large fluid syringe. Looks closest to this:
https://www.amazon.com/Lumax-LX-1185-Bl ... ve&sr=1-24
Anyway it worked reasonably well though the diff fluid is quite thick. Of course it's a Mercedes so it has to be different. It takes 85W-90. That's right. Not 75W-90. Not 80W-90. 85W-90. Which I've never heard of before.
Anyway, filled it up until it spilled, put fill plug back, done. Pretty easy. Nice, meaty cast iron diff, too.
Back home the fill plug loosened pretty easily with just a 1/2" ratchet. Then the drain plug came out fine and I drained it.
To fill I screwed around with different options and ended up using my old (but unused until recently because I forgot I had it) large fluid syringe. Looks closest to this:
https://www.amazon.com/Lumax-LX-1185-Bl ... ve&sr=1-24
Anyway it worked reasonably well though the diff fluid is quite thick. Of course it's a Mercedes so it has to be different. It takes 85W-90. That's right. Not 75W-90. Not 80W-90. 85W-90. Which I've never heard of before.
Anyway, filled it up until it spilled, put fill plug back, done. Pretty easy. Nice, meaty cast iron diff, too.