Rear differential oil change
03-20-2020, 01:18 PM
#26
MBWorld Fanatic!
At least on my 2011 4M, there's nothing magic about the rear diff. Very easy to do a fluid change as there are separate drain and fill plugs. I used MB spec gear lube, but I think some dealers use M1.
The front diff is fiddly, as it only has a drain plug - fluid needs to be replaced by pumping it up through that same drain plug unless you love pulling axle shafts.
In my case my car has very low miles, less than 60k. I did the rear diff fluid at about 50k mostly out of curiousity and it looked great, so probably not needed at that time. No big deal.
Based on that fluid condition I figure the front diff has a long way to go before fluid change.
The front diff is fiddly, as it only has a drain plug - fluid needs to be replaced by pumping it up through that same drain plug unless you love pulling axle shafts.
In my case my car has very low miles, less than 60k. I did the rear diff fluid at about 50k mostly out of curiousity and it looked great, so probably not needed at that time. No big deal.
Based on that fluid condition I figure the front diff has a long way to go before fluid change.
03-20-2020, 07:17 PM
#27
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Location: Tremonton, Utah
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2014 E350 Sport 4Matic Sedan
yay, I've been recommended this service on my 2013 E350 4Matic. And it is due every 40k miles and was due at 80k miles - currently at 85k miles.
MB of South Charlotte. I've asked her if it is covered under the PPM where I had my 80k miles. She said, she couldn't see in detail what service was done.
Other ones are:
1. My tires are FL (4), FR(3), RL(3), RR(4). which are funky wear and the technician recommends:
When called, my SA said, he recommended it along with the replacement of the tires. Also, I reminded them my wheels are aligned twice (once in December 2019 and once in January 2020). As they replaced one strut at a time in the front.
2. Tires - mount and balance - 1350$
3. Technician recommends Fuel Service around 350$
Meaning: The FS is basically where the technician goes in and puts in a fuel injection cleaner to the fuel system, so that it cleans carbon build up out of the system. Especially out from around the injectors and the intake valves.
Recommendations
Perform 4-Wheel Alignment $179.95
Mount and balance 4 new tires $1,257.00
Perform fuel injection service $342.41
Remove and Replace rear differential fluid $244.95
MB of South Charlotte. I've asked her if it is covered under the PPM where I had my 80k miles. She said, she couldn't see in detail what service was done.
Other ones are:
1. My tires are FL (4), FR(3), RL(3), RR(4). which are funky wear and the technician recommends:
When called, my SA said, he recommended it along with the replacement of the tires. Also, I reminded them my wheels are aligned twice (once in December 2019 and once in January 2020). As they replaced one strut at a time in the front.
2. Tires - mount and balance - 1350$
3. Technician recommends Fuel Service around 350$
Meaning: The FS is basically where the technician goes in and puts in a fuel injection cleaner to the fuel system, so that it cleans carbon build up out of the system. Especially out from around the injectors and the intake valves.
Recommendations
Perform 4-Wheel Alignment $179.95
Mount and balance 4 new tires $1,257.00
Perform fuel injection service $342.41
Remove and Replace rear differential fluid $244.95
I wonder how much shop time they are charging.
03-20-2020, 07:33 PM
#28
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2008 E350 4Matic, 2011 E350 4matic
I used the factory fluid when doing the front. Had a bad axle seal so had to replace the seal and change the fluid.
03-20-2020, 10:09 PM
#29
MBWorld Fanatic!
During the warranty period I took my car to the dealer service for everything that was mentioned in the service schedule jut to keep it clean between them and me.
Last edited by Arrie; 03-20-2020 at 10:13 PM.
03-21-2020, 12:54 PM
#31
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2008 E350 4Matic, 2011 E350 4matic
I don't think it does anything different than using the injector cleaners mixed in the gas but if you don't have it done by the dealer service as mentioned in the service schedule the dealer can blame other issues to not having it done and then warranty would not cover the other fuel system issues or car not starting issues.
During the warranty period I took my car to the dealer service for everything that was mentioned in the service schedule jut to keep it clean between them and me.
During the warranty period I took my car to the dealer service for everything that was mentioned in the service schedule jut to keep it clean between them and me.
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