W211 whining differential
Thread Starter
Newbie
Joined: Apr 2023
Posts: 2
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W211 E800
W211 whining differential
Hi!
I have some probelm with my rear differential.. It makes humming sound (bearing fault) around 50-60km/h.
I already changed propellershaft bearing and bushing, rear wheel bearings, rear differential oil + XADO additive, but all the same.
The EPC only says that differential can only be changed as full unit, you cant buy bearings or parts for it.
Can anybody help me please with some informations about diff. reneval, and bearing part numbers?
Car: W211 facelift sedan, E200 CDi ( OM646.821 ), Manual 6 Trans, non 4matic.
Original part number for complete differential unit: A 219 350 14 14
Thanks a lot!
I have some probelm with my rear differential.. It makes humming sound (bearing fault) around 50-60km/h.
I already changed propellershaft bearing and bushing, rear wheel bearings, rear differential oil + XADO additive, but all the same.
The EPC only says that differential can only be changed as full unit, you cant buy bearings or parts for it.
Can anybody help me please with some informations about diff. reneval, and bearing part numbers?
Car: W211 facelift sedan, E200 CDi ( OM646.821 ), Manual 6 Trans, non 4matic.
Original part number for complete differential unit: A 219 350 14 14
Thanks a lot!
Out Of Control!!
Joined: Apr 2019
Posts: 12,250
Likes: 6,911
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
input bearings
Hi!
I have some probelm with my rear differential.. It makes humming sound (bearing fault) around 50-60km/h.
I already changed propellershaft bearing and bushing, rear wheel bearings, rear differential oil + XADO additive, but all the same.
The EPC only says that differential can only be changed as full unit, you cant buy bearings or parts for it.
Can anybody help me please with some informations about diff. reneval, and bearing part numbers?
Car: W211 facelift sedan, E200 CDi ( OM646.821 ), Manual 6 Trans, non 4matic.
Original part number for complete differential unit: A 219 350 14 14
Thanks a lot!
I have some probelm with my rear differential.. It makes humming sound (bearing fault) around 50-60km/h.
I already changed propellershaft bearing and bushing, rear wheel bearings, rear differential oil + XADO additive, but all the same.
The EPC only says that differential can only be changed as full unit, you cant buy bearings or parts for it.
Can anybody help me please with some informations about diff. reneval, and bearing part numbers?
Car: W211 facelift sedan, E200 CDi ( OM646.821 ), Manual 6 Trans, non 4matic.
Original part number for complete differential unit: A 219 350 14 14
Thanks a lot!
The preferred source of differential noise are the two roller bearings of the input pinion shaft.
Each roller bearing has manufacturer markings. Use that to cross reference an upgrade from your trusted brand.
Last edited by CaliBenzDriver; Apr 5, 2023 at 01:23 PM.
Thread Starter
Newbie
Joined: Apr 2023
Posts: 2
Likes: 0
W211 E800
Thanks, yes i thought it. I am arfraid of disassembly, because some peoples say the differential wheel gaps need to be adjusted
by specified Sieger rings with different thickness. Is it valid information?
by specified Sieger rings with different thickness. Is it valid information?
Super Member
Joined: Jul 2021
Posts: 530
Likes: 157
2006 E280
In general, yes, diff gear backlash is adjusted via shims. However, if you replace just the carrier bearings, and place the shims where they came from, usually there is no need for adjustment. But it's a good practice to check the tooth contact pattern with a marking compound.
Same goes with the pinion bearings, but you'll need to get proper preload to pinion.
Same goes with the pinion bearings, but you'll need to get proper preload to pinion.
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