2000 mile diff oil change C43
Thread Starter
Senior Member
Joined: Jan 2014
Posts: 479
Likes: 122
From: Raleigh, NC
2021 C63S Coupe
2000 mile diff oil change C43
I read the owner manual & AMG supplement and it's exactly the same as my C63S -- likely a direct copy for both cars. I'm curious if new owners have been doing this differential service on their 43's?
We have a 2 yr service plan for both cars which covers this even though it's not an A or B service and I did have the rear diff service performed on my C63s; I'll be making an appointment when we get more miles on the 43 and see what they do.
Any other member experiences appreciated, thanks!
We have a 2 yr service plan for both cars which covers this even though it's not an A or B service and I did have the rear diff service performed on my C63s; I'll be making an appointment when we get more miles on the 43 and see what they do.
Any other member experiences appreciated, thanks!
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Joined: Nov 2017
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2018 Mercedes C43 AMG Coupe
It's not necessary. Some C43 owners who don't know better push their dealers for what they think is a mandatory rear diff fluid change like on the 63s. Sometimes they oblige...
Fyi, I have changed it myself at 95k km. For the most part, they are lifetime fluids.
Fyi, I have changed it myself at 95k km. For the most part, they are lifetime fluids.
Thread Starter
Senior Member
Joined: Jan 2014
Posts: 479
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From: Raleigh, NC
2021 C63S Coupe
I fall into the above category - and since I paid for it, and it's in the owner manual supplement (until MB changes it), it's a win.
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From: UK
2004 E55 K Wagon &. '96 SL500
C63S has an LSD which I guess can have a lot more friction and load internally as the torque is transferred across it, whereas the C43 is just a normal open diff.
I Can't see any benefit of doin this at 2K miles. Maybe 50,K miles especially if been used hard
I Can't see any benefit of doin this at 2K miles. Maybe 50,K miles especially if been used hard
Thread Starter
Senior Member
Joined: Jan 2014
Posts: 479
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From: Raleigh, NC
2021 C63S Coupe
(or maybe not, but you know I'm gonna do it!)
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Thread Starter
Senior Member
Joined: Jan 2014
Posts: 479
Likes: 122
From: Raleigh, NC
2021 C63S Coupe
I don't disagree that the vehicle will run beautifully for thousands of miles without doing it - however my point is that this service requirement is still in the AMG supplement, and if have pre-paid maintenance, it's included and you paid for it -- so might as well push for the service until MB updates their manuals.
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Joined: Dec 2016
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2018 C43
I don't disagree that the vehicle will run beautifully for thousands of miles without doing it - however my point is that this service requirement is still in the AMG supplement, and if have pre-paid maintenance, it's included and you paid for it -- so might as well push for the service until MB updates their manuals.
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From: San Francisco Bay Area
2019 C63CS
While the owner's manual is the same for the C43 and the C63 that note regarding the differential oil change as the title says is for the locking differential only. The C43 has open differentials front and rear. They could make it more clear, but only the C63 has a locking rear differential. It's an electronic locking rear differential on both the C63 and C63S for the FL. The PFL non-S had a mechanical limited slip differential.
However, this note is outdated now. The current C63/S no longer need this service. Some dealerships still don't have the latest information and the maintenance plans also haven't been updated from what I heard, neither has the English owner's manual. If the vehicle needs the differential service it will have a sticker on the windshield below the engine break-in instruction sticker. It appears they changed the friction material of the clutch pack in the locking differential which negates the requirement for this service. The change was made later in the MY2019 production. The first batch of cars still needed it. Mine is a Feb '19 build and it officially didn't need it anymore. I got it confirmed by AMG Germany while I was over there doing European Delivery. I ended up doing it anyway as a piece of mind and because of all the conflicting information that was going around. I did it a bit later than 2000 miles as I first had to find a dealership in Germany that could squeeze me in while I was driving through town, but they happily obliged and it wasn't very expensive. It's up to you if you wanna do it for your C63, but the C43 definitely doesn't need it at all. It has very basic differentials.
However, this note is outdated now. The current C63/S no longer need this service. Some dealerships still don't have the latest information and the maintenance plans also haven't been updated from what I heard, neither has the English owner's manual. If the vehicle needs the differential service it will have a sticker on the windshield below the engine break-in instruction sticker. It appears they changed the friction material of the clutch pack in the locking differential which negates the requirement for this service. The change was made later in the MY2019 production. The first batch of cars still needed it. Mine is a Feb '19 build and it officially didn't need it anymore. I got it confirmed by AMG Germany while I was over there doing European Delivery. I ended up doing it anyway as a piece of mind and because of all the conflicting information that was going around. I did it a bit later than 2000 miles as I first had to find a dealership in Germany that could squeeze me in while I was driving through town, but they happily obliged and it wasn't very expensive. It's up to you if you wanna do it for your C63, but the C43 definitely doesn't need it at all. It has very basic differentials.
Last edited by superswiss; Jun 3, 2021 at 09:54 PM.
Thread Starter
Senior Member
Joined: Jan 2014
Posts: 479
Likes: 122
From: Raleigh, NC
2021 C63S Coupe
While the owner's manual is the same for the C43 and the C63 that note regarding the differential oil change as the title says is for the locking differential only. The C43 has open differentials front and rear. They could make it more clear, but only the C63 has a locking rear differential. It's an electronic locking rear differential on both the C63 and C63S for the FL. The PFL non-S had a mechanical limited slip differential.
However, this note is outdated now. The current C63/S no longer need this service. Some dealerships still don't have the latest information and the maintenance plans also haven't been updated from what I heard, neither has the English owner's manual. If the vehicle needs the differential service it will have a sticker on the windshield below the engine break-in instruction sticker. It appears they changed the friction material of the clutch pack in the locking differential which negates the requirement for this service. The change was made later in the MY2019 production. The first batch of cars still needed it. Mine is a Feb '19 build and it officially didn't need it anymore. I got it confirmed by AMG Germany while I was over there doing European Delivery. I ended up doing it anyway as a piece of mind and because of all the conflicting information that was going around. I did it a bit later than 2000 miles as I first had to find a dealership in Germany that could squeeze me in while I was driving through town, but they happily obliged and it wasn't very expensive. It's up to you if you wanna do it for your C63, but the C43 definitely doesn't need it at all. It has very basic differentials.
However, this note is outdated now. The current C63/S no longer need this service. Some dealerships still don't have the latest information and the maintenance plans also haven't been updated from what I heard, neither has the English owner's manual. If the vehicle needs the differential service it will have a sticker on the windshield below the engine break-in instruction sticker. It appears they changed the friction material of the clutch pack in the locking differential which negates the requirement for this service. The change was made later in the MY2019 production. The first batch of cars still needed it. Mine is a Feb '19 build and it officially didn't need it anymore. I got it confirmed by AMG Germany while I was over there doing European Delivery. I ended up doing it anyway as a piece of mind and because of all the conflicting information that was going around. I did it a bit later than 2000 miles as I first had to find a dealership in Germany that could squeeze me in while I was driving through town, but they happily obliged and it wasn't very expensive. It's up to you if you wanna do it for your C63, but the C43 definitely doesn't need it at all. It has very basic differentials.
Last edited by djprov431; Jun 4, 2021 at 06:38 AM.
