Differential Cooling




Bolt end cover to rear axle differential, so cover to diff (torque setting indicates bolts are stretched so you should use new bolts.
Stage 1 NM 30
Stage 2 45 degrees
Bolt Heat sink to end cover 35NM
Last edited by roadkillrob; Dec 12, 2020 at 12:33 PM.




Worth having if you like working on your vehicle
I am having trouble finding diff cover mounting bolts part number or for sale anywhere if anyone can help.
My new finned diff cover, rectifier and rectifier mounting bolts have arrived.
Thanks for the help
I just bought these items A2043510608 diff plate, A1713510108 rectifier , 2x N000000001536 bolts and turns out its already fitted. I really should have checked before ordering.
Too much time has elapsed for me to return them so I need to sell them.
Send me a message if you want them. I am based in the UK but can ship. Cost me £220 gbp.
Last edited by Dr.Speedfellow; Jun 7, 2021 at 03:27 PM.




I was going to try to fit mine this week, but think my new diff pump is now in the way.
The Best of Mercedes & AMG
I was going to try to fit mine this week, but think my new diff pump is now in the way.
Last edited by Dr.Speedfellow; Jun 11, 2021 at 12:48 PM.
I’ve checked with a few a couple shops in the greater Seattle area and they are quoting $1,200–$1,400 in labor, claiming the entire differential has to come out. Wobble64 and others mentioned this being a ~3-hour job ($400–$600).
For those who have done this: Did your shop manage to do the "partial lower" method, or is a full diff drop actually required? I want to make sure I’m not overpaying. Any advice on how to "guide" a shop on the shortcut would be huge. Thanks!
I’ve checked with a few a couple shops in the greater Seattle area and they are quoting $1,200–$1,400 in labor, claiming the entire differential has to come out. Wobble64 and others mentioned this being a ~3-hour job ($400–$600).
For those who have done this: Did your shop manage to do the "partial lower" method, or is a full diff drop actually required? I want to make sure I’m not overpaying. Any advice on how to "guide" a shop on the shortcut would be huge. Thanks!
Good luck, and let us know how it all shakes out!






