RMS and Oil Pressure
Thread Starter
MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,693
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From: Newcastle, WA
2019 S63 4Matic+, 2018 E400 Cabrio, wardens car.
RMS and Oil Pressure
I have zero issues with my car but have heard of some horror stories of clogged oil catch can devices that clog and create crankcase pressure that can blow out the rear main seal on the M177 motors. Wondering of there is a way to see oil pressure or even crankcase oil pressure somewhere. Would be good to know if the pressure is running high and pre-emptively change the catch cans. Don't really want to change the catch can devices for no reason but coming up on 30K miles and don't want to risk the infamous RMS seal blowout and associated 10K repair bill.
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Joined: Apr 2016
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2014 S550 AMG, 2017 XT5
I have zero issues with my car but have heard of some horror stories of clogged oil catch can devices that clog and create crankcase pressure that can blow out the rear main seal on the M177 motors. Wondering of there is a way to see oil pressure or even crankcase oil pressure somewhere. Would be good to know if the pressure is running high and pre-emptively change the catch cans. Don't really want to change the catch can devices for no reason but coming up on 30K miles and don't want to risk the infamous RMS seal blowout and associated 10K repair bill.
MBWorld Fanatic!
Joined: Aug 2007
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From: Pacific Northwest
2001 S600 V12 Sold, 2011 Jaguar XFR Sold, 2017 S550 4-Matic, 2018 S63 AMG Sedan
You must have just read this thread: https://mbworld.org/forums/w213-amg/...il-leak-2.html
Scary to think about. Maybe it's time bite the bullet and get the aftermarket warranty.
Scary to think about. Maybe it's time bite the bullet and get the aftermarket warranty.
Thread Starter
MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,693
Likes: 827
From: Newcastle, WA
2019 S63 4Matic+, 2018 E400 Cabrio, wardens car.
It is not a catch can in the traditional sense but rather a Crankcase Ventilation Circuit that can become clogged and cause excess pressure to build up in the crankcase. I doubt this is an instantaneous failure but rather as the circuit accumulates oil, it slowly raises the pressure and eventually something has to give and unfortunately the RMS is the relief valve. @carlosinseattle I doubt that an aftermarket warranty would cover this as they typically do not cover failed seals that are simply leaking. Kind of like tires and brakes. I could see it becoming a big fight.
MBWorld Fanatic!
Joined: Aug 2007
Posts: 1,845
Likes: 798
From: Pacific Northwest
2001 S600 V12 Sold, 2011 Jaguar XFR Sold, 2017 S550 4-Matic, 2018 S63 AMG Sedan
It is not a catch can in the traditional sense but rather a Crankcase Ventilation Circuit that can become clogged and cause excess pressure to build up in the crankcase. I doubt this is an instantaneous failure but rather as the circuit accumulates oil, it slowly raises the pressure and eventually something has to give and unfortunately the RMS is the relief valve. @carlosinseattle I doubt that an aftermarket warranty would cover this as they typically do not cover failed seals that are simply leaking. Kind of like tires and brakes. I could see it becoming a big fight.
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Joined: Apr 2021
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From: Scottsdale, Arizona
2001 E55AMG
@carlosinseattle is correct, RMS repair/replacement is covered under our warranty provider's coverage, we've had the job performed in the past, zero issues. I think the E63's run into it the most actually.... especially 2016's. @superpop reach out at tgibson@highline-autos.com or (855) 924-1333 if you'd like to see coverage options and pricing on your S63.
