RMS Fail Club
Super Member
Joined: Jun 2014
Posts: 517
Likes: 71
From: Los Angeles, CA
2019 S63 AMG (Current), 2015 E63S, 2008 E63, 2005 E55
Joined: Jul 2006
Posts: 6,760
Likes: 594
From: Seattle
'19 E63S, ‘16 CLS63 RIP, '09 E63 Gone, '06 M5 Gone, '97 Supra TT Gone
Year: 2019
Model: E63S
RMS Failure Mileage: 39K miles
Style/Frequency of Driving: Daily
Original Owner: No
Failed Before or After Warranty: Just months after warranty expired
Has it re-leaked after repair: No
Cost to repair: $7k with separators.
Who repaired it: Indy Mercedes Master Tech
Model: E63S
RMS Failure Mileage: 39K miles
Style/Frequency of Driving: Daily
Original Owner: No
Failed Before or After Warranty: Just months after warranty expired
Has it re-leaked after repair: No
Cost to repair: $7k with separators.
Who repaired it: Indy Mercedes Master Tech
Newbie
Joined: Jan 2024
Posts: 1
Likes: 2
2019 AMG E63S
2019 AMG E63S RMS FAILURE
Year: 2019
Model: E63S
RMS Failure Mileage: 38.5K miles
Style/Frequency of Driving: Barley driven
Original Owner: No (2nd Owner)
Failed Before or After Warranty:-Fidelity Extended Warranty
Has it re-leaked after repair: Repair in process
Cost to repair: $12k with separators.
Who repaired it: Mercedes of new rochelle
Last edited by RECKLESS E63S; Apr 10, 2025 at 01:21 AM.
Thread Starter
Out Of Control!!
Joined: Jun 2004
Posts: 13,799
Likes: 3,228
2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Junior Member
Joined: Sep 2019
Posts: 50
Likes: 16
BMW M3 cabrio
Sorry for being lost 
Is there an equivalent thread for 2020 GT63 RMS failure? I've had 2 (at under 60K miles) - they did it the forst time with the corresponding oil separator replacement, but the seal failed immediately after that work, they have the engine and tranny out currently and are trying a new seal.
Is there an equivalent thread for 2020 GT63 RMS failure? I've had 2 (at under 60K miles) - they did it the forst time with the corresponding oil separator replacement, but the seal failed immediately after that work, they have the engine and tranny out currently and are trying a new seal.
Super Member
Joined: Jun 2014
Posts: 517
Likes: 71
From: Los Angeles, CA
2019 S63 AMG (Current), 2015 E63S, 2008 E63, 2005 E55
Sorry for being lost Is there an equivalent thread for 2020 GT63 RMS failure? I've had 2 (at under 60K miles) - they did it the forst time with the corresponding oil separator replacement, but the seal failed immediately after that work, they have the engine and tranny out currently and are trying a new seal.
Is there an equivalent thread for 2020 GT63 RMS failure? I've had 2 (at under 60K miles) - they did it the forst time with the corresponding oil separator replacement, but the seal failed immediately after that work, they have the engine and tranny out currently and are trying a new seal.
Junior Member
Joined: Sep 2019
Posts: 50
Likes: 16
BMW M3 cabrio
As I said, the previous repair included the separators and they felt pretty confident at the time that that would be that. It gets put back together tomorrow.
Thanks again for the reply!
To adhere to the format:
Year: 2020
Model: GT63
RMS Failure Mileage: 55K miles
Style/Frequency of Driving: daily/spirited occasionally, but no track or anything close
Original Owner: yes
Failed Before or After Warranty: after
Has it re-leaked after repair: yes
Cost to repair: warrantee covered and A LOT.
Who repaired it: dealership
Last edited by JonDiamond; Apr 10, 2025 at 10:15 PM.
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Super Member
Joined: Jun 2014
Posts: 517
Likes: 71
From: Los Angeles, CA
2019 S63 AMG (Current), 2015 E63S, 2008 E63, 2005 E55
Thans for the immediate reply! Yeah, the dealership seems like they aren't necessarily ducking responsibility for whatever failed during the first repair, and everything is being covered by extended warrantee and/or dealership. *IF* I understood correctly, it sounded like they were saying they actually were gonna use a different design seal (not quite saying "aftermarket" or whatever-- but certainly hinting at that, in my mind-- again assuming I understood at all,) and expected better result (certainly possible that that's all cover for "err, maybe we installed it wrong"- -but not the slightest idea.)
As I said, the previous repair included the separators and they felt pretty confident at the time that that would be that. It gets put back together tomorrow.
Thanks again for the reply!
To adhere to the format:
Year: 2020
Model: GT63
RMS Failure Mileage: 55K miles
Style/Frequency of Driving: daily/spirited occasionally, but no track or anything close
Original Owner: yes
Failed Before or After Warranty: after
Has it re-leaked after repair: yes
Cost to repair: warrantee covered and A LOT.
Who repaired it: dealership
As I said, the previous repair included the separators and they felt pretty confident at the time that that would be that. It gets put back together tomorrow.
Thanks again for the reply!
To adhere to the format:
Year: 2020
Model: GT63
RMS Failure Mileage: 55K miles
Style/Frequency of Driving: daily/spirited occasionally, but no track or anything close
Original Owner: yes
Failed Before or After Warranty: after
Has it re-leaked after repair: yes
Cost to repair: warrantee covered and A LOT.
Who repaired it: dealership
Out Of Control!!
Joined: Sep 2018
Posts: 14,666
Likes: 4,569
From: unbegrenzt
2017 GLE350 4MATIC
Thanks to @PeterUbers for this thread, it is well-supported and provides good information for current and prospective M177 owners.
Senior Member
Joined: Jan 2016
Posts: 337
Likes: 82
'15 E63S,'21 LCI M5
Haven't seen any 2021's yet on the rms list ? unless I missed it .. 212 owner ,have a lead on a 21 trade in with some miles (60k ish) awaiting a ppi
Last edited by SilverE5588; Apr 11, 2025 at 07:17 PM.
Thread Starter
Out Of Control!!
Joined: Jun 2004
Posts: 13,799
Likes: 3,228
2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
what years are affected for RMS? 2018-2022 reported:
https://mbworld.org/forums/w213-amg/...ml#post9118881
https://mbworld.org/forums/w213-amg/...ml#post9028868
Last edited by PeterUbers; Apr 11, 2025 at 07:48 PM.
Member
Joined: Sep 2018
Posts: 112
Likes: 58
From: Texas
E63s AMG
Year: 2018
Model: E63s
RMS Failure Mileage: 56K miles
Style/Frequency of Driving: daily/spirited occasionally, but no track or anything close
Original Owner: No
Failed Before or After Warranty: before CPO expired
Has it re-leaked after repair: N/A
Cost to repair: Unkn - under repair
Who repaired it: dealership
Dealership denied covering oil seperators, per CPO coverage policy. I appealed to the dealership, who asked regional MBNA to authorize coverage, which they did.
Other issues:
Replacing motor mounts again, after replacing them last year. weak design?
Leaking thermostat housing. Coolant smell.
Leaking high pressure fuel pump. Fuel smell.
Leaking front input shaft seal.
noisy front differential.
Got hit by an uninsured motorist in the dealership's $110k EQE loaner, who ran a stop sign. A am grateful for a great SA and a good dealership!
Model: E63s
RMS Failure Mileage: 56K miles
Style/Frequency of Driving: daily/spirited occasionally, but no track or anything close
Original Owner: No
Failed Before or After Warranty: before CPO expired
Has it re-leaked after repair: N/A
Cost to repair: Unkn - under repair
Who repaired it: dealership
Dealership denied covering oil seperators, per CPO coverage policy. I appealed to the dealership, who asked regional MBNA to authorize coverage, which they did.
Other issues:
Replacing motor mounts again, after replacing them last year. weak design?
Leaking thermostat housing. Coolant smell.
Leaking high pressure fuel pump. Fuel smell.
Leaking front input shaft seal.
noisy front differential.
Got hit by an uninsured motorist in the dealership's $110k EQE loaner, who ran a stop sign. A am grateful for a great SA and a good dealership!
MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,685
Likes: 820
From: Newcastle, WA
2019 S63 4Matic+, 2018 E400 Cabrio, wardens car.
Year: 2019
Model: S63
RMS Failure Mileage: 45K miles
Style/Frequency of Driving: Daily
Original Owner: No
Failed Before or After Warranty: During ELW Fidelity
Has it re-leaked after repair: No
Cost to repair: 8K
Who repaired it: Dealership
Model: S63
RMS Failure Mileage: 45K miles
Style/Frequency of Driving: Daily
Original Owner: No
Failed Before or After Warranty: During ELW Fidelity
Has it re-leaked after repair: No
Cost to repair: 8K
Who repaired it: Dealership
MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,685
Likes: 820
From: Newcastle, WA
2019 S63 4Matic+, 2018 E400 Cabrio, wardens car.
@superpop did the warranty cover the entire repair? and what dealership?
Have had a hard time getting dealers to accept warranty. Thanks!
Have had a hard time getting dealers to accept warranty. Thanks!
Member
Joined: Apr 2012
Posts: 97
Likes: 19
From: southern California
'21 AMG GLE63S, '17 BMW 340iGT
Year: 2021
Model: GLE63S
RMS Failure Mileage: 97,814 miles
Style/Frequency of Driving: daily
Original Owner: yes
Failed Before or After Warranty: Before
Has it re-leaked after repair: I do not yet have it back
Cost to repair: $0 (warranty)
Who repaired it: dealership
The alternator - starter motor was soaked with oil, so they are also replacing it under the extended warranty/
Model: GLE63S
RMS Failure Mileage: 97,814 miles
Style/Frequency of Driving: daily
Original Owner: yes
Failed Before or After Warranty: Before
Has it re-leaked after repair: I do not yet have it back
Cost to repair: $0 (warranty)
Who repaired it: dealership
The alternator - starter motor was soaked with oil, so they are also replacing it under the extended warranty/
Last edited by FStephenMasek; Jul 9, 2025 at 11:00 PM.
Member
Joined: Apr 2012
Posts: 97
Likes: 19
From: southern California
'21 AMG GLE63S, '17 BMW 340iGT
It is an emissions control gizmo, probably required due to the crazy California regulations. Just back-off a little on the emissions regulations, and the vehicles would be much less complex and much more reliable. I'm considering an older car with no emission controls, and no computers, unless it has fuel injection.
