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Hey guys wanted to start off introducing myself, my name is Mike from beautiful Orange County Ca.
Time has come to get into my first every MB AMG S63 its been a dream of mine forever...
Looking for feedback from real owners of S63 (looking at purchasing a 2018 S63 4matic)
How reliably are they? Any major issues any members experienced? Little bit concerned as im coming from owing Toyota (especially my loving collection of 80' series Land Cruisers) and Ford most of my life.
Any feedback is appreciated.
Last edited by mikeramso; Feb 12, 2025 at 02:42 PM.
My '19 S63 has been rock solid since I purchased it new in 2018 except the $7k repair to replace the rear main seal & the oil separators as mentioned. This has been the best MB and best S Class I have owned in the over 30 years I have been buying new Mercedes Benz S class cars. I have on order a '25 S63 and may just keep the '19 as well because I "love" the car so much. But disappointed at the rear main seal as that was an expensive fix for an oil leak!
A warning on the 2018 S63. When they were new the S63 and E63 cars were having lots of Check Engine Lights coming on. If I recall they had engine misses and many of those '18s were lemon lawed. Just an FYI.
Originally Posted by chassis
Read about oil vapor separator failure and rear main crankshaft oil seal failure for M177 engines.
My '19 S63 has been rock solid since I purchased it new in 2018 except the $7k repair to replace the rear main seal & the oil separators as mentioned. This has been the best MB and best S Class I have owned in the over 30 years I have been buying new Mercedes Benz S class cars. I have on order a '25 S63 and may just keep the '19 as well because I "love" the car so much. But disappointed at the rear main seal as that was an expensive fix for an oil leak!
A warning on the 2018 S63. When they were new the S63 and E63 cars were having lots of Check Engine Lights coming on. If I recall they had engine misses and many of those '18s were lemon lawed. Just an FYI.
Yes there was a Korean person that used a golf club to destroy his S 63 in front of an MB dealership in Korea, it was that bad, as the vehicle stalled multiple times and shut off on a busy road endangering his family, thankfully latter model years don't have that issue anymore. By the way, don't be this guy. You destroy the vehicle yet you still have to pay for it.
Anyways OP, to answer your question, the W222 is a relatively reliable vehicle it won't be as reliable as the Japanese vehicles you mentioned but that is because there is so much technology in a Mercedes S-Class, the aforementioned two issues is a big one and I am not sure if the RMS repair is permanent or it will come back, other than that solid vehicle.
Wait so was the reoccurrence using the old part numbers or the new part numbers shown here (linked from the sticky thread courtesy of forum member PeterUbers): https://mbworld.org/forums/w213-amg/...ml#post9012993
Last edited by W205C43PFL; Feb 12, 2025 at 09:31 PM.
Hey guys wanted to start off introducing myself, my name is Mike from beautiful Orange County Ca.
Time has come to get into my first every MB AMG S63 its been a dream of mine forever...
Looking for feedback from real owners of S63 (looking at purchasing a 2018 S63 4matic)
How reliably are they? Any major issues any members experienced? Little bit concerned as im coming from owing Toyota (especially my loving collection of 80' series Land Cruisers) and Ford most of my life.
Any feedback is appreciated.
Bought my 18 S63 in Septembr of 2023 with 37K miles on it. I did a lot of research on these before I bought it and to this point it has paid off. I haven't had a single problem wit the car, except one. The speaker behind the rear left passenger wasn't working. I fixed it by taking the amp out and spraying contact cleaner on the plug. The the point about rough idle problems with the 2018's; that was very real and affected 50% or more of the 18 model year cars. some people got frustrated an lemoned the cars, after replacing the spark plugs, coils, fuel injectors, and other parts, which didn't solve the problem. The fix was a software/firmware udpate to the ECU. The good thing about this is that of the cars that had this problem, most were given one or more extra oil changes and other services as a courtesy to the customers. So when you review Carfax reports you'll see a bunch of extra services on most of the MY18 S63's. That was the only model year it affected.
Yes, the RMS is an issue to be concerned about. When I first thought about buying this car I saw that people were paying $10K+ to replace it, but the replacement cost have reduced considerably. One shop in Pennsylvania did it for $1200.00, but that was with a 30% dealer discount, but they did NOT replace the OVS, which are the cause of the problem. A repair shop in central CA repalced the RMS and OVS for $5200, which was great for that part of the country. I anticipate around $5K-$7K if the RMS goes out on my car. Hard to say when it will happen and can't say for sure it will. But that's the big problem with these cars, 18-20 S63's, it's like someone lifting a piano above your head; you just hope the rope doesn't break. Otherwise, you don;t hear about a lot of problems.
Look for a car with great maintenance history.
Last edited by carlosinseattle; Feb 13, 2025 at 02:55 PM.
Yessir. Normally accompanied by a prior visit(s) with complaints of driveability issues. And with that you normally see spark plugs and/or ignition coils replaced. My car was one that had the problem ECU with the original owner going through the hassles, but it was 4+ years before I bought it. In my case, the car was originally leased and he bought it after the lease and drove it for almost 2 more years, which I considered to be a good sign. If he thought it was garbage, he would have walked away at the end of the lease. Excerpt from carfax
Thanks for the very informative response. In the model body style W222 did only the AMG get affected by the RMS and OVS? Meaning does this apply to the S560 as well would you know?
Yessir. Normally accompanied by a prior visit(s) with complaints of driveability issues. And with that you normally see spark plugs and/or ignition coils replaced. My car was one that had the problem ECU with the original owner going through the hassles, but it was 4+ years before I bought it. In my case, the car was originally leased and he bought it after the lease and drove it for almost 2 more years, which I considered to be a good sign. If he thought it was garbage, he would have walked away at the end of the lease. Excerpt from carfax
Ah that makes a lot of sense and I am glad you too are enjoying it right now .. a lot.
Thanks for the very informative response. In the model body style W222 did only the AMG get affected by the RMS and OVS? Meaning does this apply to the S560 as well would you know?
If I recalled correctly, It is also affecting E 63 S and basically any M176/M177/M178 engine. I love to be wrong though.
I have only heard of the RMS issue in the M177 and M178 motors. I have a 2019 S63 and at 44K miles it has been great. They are awsome cars, almost a 2 in one car. In comfort mode it is an awesome road trip car. In Sport+ it is a beast. I have done, brakes, tires, oil changes and services on mine. When I purchased mine used it had 9K miles on it and was 2 years old so it was still basically a new car. It did have a faulty rear radar sensor that would cause the brakes to randomly lock up and swerve the car so that was terrifying but the dealer fixed that under warranty. At 40K miles I decided to get a Fidelity warranty that will last through my ownership of the car just so I do not have any major surprises including the RMS and suspension issues that can arise this platform. I would not hesitate to buy another one though. I have had 3 S Classes in the past 10 years and I was a Toyota guy before that and every one of my S Classes has been as reliable as any Toyota or Lexus product I have owned.
I have only heard of the RMS issue in the M177 and M178 motors. I have a 2019 S63 and at 44K miles it has been great. They are awsome cars, almost a 2 in one car. In comfort mode it is an awesome road trip car. In Sport+ it is a beast. I have done, brakes, tires, oil changes and services on mine. When I purchased mine used it had 9K miles on it and was 2 years old so it was still basically a new car. It did have a faulty rear radar sensor that would cause the brakes to randomly lock up and swerve the car so that was terrifying but the dealer fixed that under warranty. At 40K miles I decided to get a Fidelity warranty that will last through my ownership of the car just so I do not have any major surprises including the RMS and suspension issues that can arise this platform. I would not hesitate to buy another one though. I have had 3 S Classes in the past 10 years and I was a Toyota guy before that and every one of my S Classes has been as reliable as any Toyota or Lexus product I have owned.
I see, so the M176 although the same family is not affected?
RMS issues are possible on all 4.0 liter bi-turbo V8 motors, however the E63 is by far the most common model to find it in. S-Class and G-Class I've seen it as well... but really nothing like the E-Class.
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