w204 Facelift rear diff questions

Exp21

Senior Member
Joined
Dec 17, 2018
Messages
206
Reaction score
51
Your Mercedes
s204 C200 CDI Blue Efficiency MY2012, w245 B200 CDI Facelift
Hi everyone. I'm about to change the oil in my rear diff after 10 years and 90k miles. A question: I've read that the Omnifit 100H sealant recommended by WIS on the threads of the drain plug is equivalent to loctite 545 hydraulic sealant. Others say you can use any medium strength threadlocker. Does anyone know what to do exactly? Omnifit 100H is impossible to find online.

And also, does anyone know if for a 2012 C200 CDI B.E. (my car), a non-AMG model, a 235.7 gear oil is fine? From WIS it's a real mess to understand exactly the oil spec.

Thank you very much for help and good miles :)
 

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
10,893
Reaction score
8,230
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
Fuchs Titan sintopoid 75/85w from memory, capacity 1.2-1.3 L . Undo the fill plug first to check it works .
Dont use thread lock , or at least I don’t . 50nm torque on both my cars
 
OP
E

Exp21

Senior Member
Joined
Dec 17, 2018
Messages
206
Reaction score
51
Your Mercedes
s204 C200 CDI Blue Efficiency MY2012, w245 B200 CDI Facelift
  • Thread Starter
  • Thread starter
  • #3
Thank you! Yes, it should be Titan Sintopoid FE 75w85 (A0019893303), but in WIS it's a real mess to understand so I was in doubt.
Anyway for an availability issue I bought a Febi 75w85 spec 235.7. It should be good anyway :)
 
OP
E

Exp21

Senior Member
Joined
Dec 17, 2018
Messages
206
Reaction score
51
Your Mercedes
s204 C200 CDI Blue Efficiency MY2012, w245 B200 CDI Facelift
  • Thread Starter
  • Thread starter
  • #4
I'm looking for new filling/drain plugs. But in EPC I see only one of the two. Is it because they are identical?
Thank you for help :)
 

Attachments

  • 20210124_153824.jpg
    20210124_153824.jpg
    94.1 KB · Views: 8

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
10,893
Reaction score
8,230
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
I’m not sure , but what’s wrong with the old ones
 
OP
E

Exp21

Senior Member
Joined
Dec 17, 2018
Messages
206
Reaction score
51
Your Mercedes
s204 C200 CDI Blue Efficiency MY2012, w245 B200 CDI Facelift
  • Thread Starter
  • Thread starter
  • #6
I don't know. I've read quite everywhere that it's better replacing them to avoid leaks. I'd do it just to be peaceful :).
I think that also WIS recommends replacing them
 

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
10,893
Reaction score
8,230
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
I don't know. I've read quite everywhere that it's better replacing them to avoid leaks. I'd do it just to be peaceful :).
I think that also WIS recommends replacing them
I’ve done both my cars 3x each without changing them with no issues . But if you can get them easily , why not :)
 

Blobcat

Moderator
Joined
Feb 8, 2006
Messages
28,098
Reaction score
13,470
Location
Grange Moor
Your Mercedes
R171 SLK280, Smart R451, Land Rover 110 County SW, 997 C2S, R1250 GSA TE 40th, CBR600FP
I’ve done both my cars 3x each without changing them with no issues . But if you can get them easily , why not :)
You can probably get a replacement copper/crush washer for the existing plug
 
OP
E

Exp21

Senior Member
Joined
Dec 17, 2018
Messages
206
Reaction score
51
Your Mercedes
s204 C200 CDI Blue Efficiency MY2012, w245 B200 CDI Facelift
  • Thread Starter
  • Thread starter
  • #10
Thanks. I just don't get why in the EPC I don't see the other plug. But probably I don't know where to look properly. I'll ask at the dealer in this case
 

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
10,893
Reaction score
8,230
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
Thanks. I just don't get why in the EPC I don't see the other plug. But probably I don't know where to look properly. I'll ask at the dealer in this case
Let us know how you get on
 
OP
E

Exp21

Senior Member
Joined
Dec 17, 2018
Messages
206
Reaction score
51
Your Mercedes
s204 C200 CDI Blue Efficiency MY2012, w245 B200 CDI Facelift
  • Thread Starter
  • Thread starter
  • #12
At the dealer they told me MB doesn't provide the drain plug o_O. So I'll use again the one I have. It seems strange anyway
 

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
10,893
Reaction score
8,230
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
At the dealer they told me MB doesn't provide the drain plug o_O. So I'll use again the one I have. It seems strange anyway
Most MB’s that aren’t the 6.3’s or 4x4’s don’t have a schedule for diff oil change , maybe that’s why they don’t ?
 
OP
E

Exp21

Senior Member
Joined
Dec 17, 2018
Messages
206
Reaction score
51
Your Mercedes
s204 C200 CDI Blue Efficiency MY2012, w245 B200 CDI Facelift
  • Thread Starter
  • Thread starter
  • #14
I don't know :)
 
Gtechniq manufactures an ultra durable and comprehensive range of surface protection products for cars, boats, RV's and aircrafthttp://www.gtechniq.com
Top Bottom