Bi-Turbo W221 Cars - High Mileage
MBWorld Fanatic!
Joined: Jan 2010
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NGL450 w/EORP, S550
I think the intent op is get a reasonable confidence interval on what a alusil lined M278 can be expected to deliver in terms of longevity. It would be very interesting to see if there are any unmodified examples pushing into the 150 thousand K mile range. 2015’and onwards got the steel cylinder liners and don’t have the scoring problem so they would not be relevant information,
so what is a 2012 through 2014 M278 mileage record?
so what is a 2012 through 2014 M278 mileage record?
MBWorld Fanatic!
Joined: Jan 2010
Posts: 3,116
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NGL450 w/EORP, S550
Super Member
Joined: Feb 2009
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From: Brooklyn, NY
2007 S550 4Matic 2013 S550 Base
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From: Texas
2015 ML350, 2020 BMW X7, 2005 LS430
MBWorld Fanatic!
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From: Phoenix
222 S-65
Tune is recent. oil changes every 8-10K. I live in the valley of the sun so it doesn't get cold here. Start up consists of push the button, drop in gear and go. I wait for coolant and oil temps to be up before abuse. I abuse her daily. Love it!! Get a 222 car. Sooo worth it.
MBWorld Fanatic!
Joined: Oct 2010
Posts: 5,141
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From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
Oil change 5000 miles interval, Mobil 0W-40 oil. Does not burn any oil. Engine is crazy strong. Slip control comes on every time I step on it from start. On wet road cannot even drive it without slip control. .
Knocking the wood that this continues.
MBWorld Fanatic!
Joined: Jan 2010
Posts: 3,116
Likes: 782
NGL450 w/EORP, S550
Tune is recent. oil changes every 8-10K. I live in the valley of the sun so it doesn't get cold here. Start up consists of push the button, drop in gear and go. I wait for coolant and oil temps to be up before abuse. I abuse her daily. Love it!! Get a 222 car. Sooo worth it.
Super Member
Joined: Dec 2018
Posts: 857
Likes: 501
From: Washington, DC
2007 S600, 2007 Chrysler 300 SRT8, 2000 C5 Corvette, 2017 Mustang GT, 2023 300C, and a 2019 Lincoln
My 2007 W221 S600 V12 TT now has 114,000 miles on it. I do Mobile One every oil change and usually at 8000 miles or one year intervals whichever comes first. Plan to have engine looked at for an overhaul in April. Will do engine and trans mounts, oil cooler, all the various tubes and hoses, and lots of while you are in there stuff. Planning to bore scope all 12. Will write up the results in a couple of months.
Car runs great.
Car runs great.
Member
Joined: Nov 2016
Posts: 160
Likes: 46
S-65 AMG
My 2010 S65 has 145,000 miles on it and is running fine.
My 2007 had 121,000 miles on it in 2020 when it was rear ended and totaled out by the insurance company. The accident happened 300 miles from home and it drove the 300 miles got me home after the accident with no tailights, dragging the exhaust and a bunch of airbag lights and other warnings dash ... but was driving ok those things aside.
My 2007 had 121,000 miles on it in 2020 when it was rear ended and totaled out by the insurance company. The accident happened 300 miles from home and it drove the 300 miles got me home after the accident with no tailights, dragging the exhaust and a bunch of airbag lights and other warnings dash ... but was driving ok those things aside.
Last edited by auburn2; Feb 8, 2026 at 12:51 PM.
Super Member
Joined: Aug 2017
Posts: 520
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From: Scottsdale AZ
2015 SL550 & 2012 S550 4matic
My 2012 S550 m279 has 139k miles, 45k are mine in 6 years. No issues whatsoever. Previous owner dealer maintained to schedule as I have done, 10k oil change. Doesn’t burn a drop. Rock solid car if they are maintained to schedule. Put 2 front struts on for $3k, plus motor and transmission mounts 1k, and I did the brakes, coils, plugs and filters myself, which was relatively easy. Because these cars are nearly fully depreciated the Total Cost of Ownership is cheap for such a luxury performer. Find one with good maintenance records and you will be pleased.
MBWorld Fanatic!
Joined: Feb 2012
Posts: 2,617
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From: Phoenix
222 S-65
My 2012 S550 m279 has 139k miles, 45k are mine in 6 years. No issues whatsoever. Previous owner dealer maintained to schedule as I have done, 10k oil change. Doesn’t burn a drop. Rock solid car if they are maintained to schedule. Put 2 front struts on for $3k, plus motor and transmission mounts 1k, and I did the brakes, coils, plugs and filters myself, which was relatively easy. Because these cars are nearly fully depreciated the Total Cost of Ownership is cheap for such a luxury performer. Find one with good maintenance records and you will be pleased.
Member
Joined: Mar 2020
Posts: 92
Likes: 43
2013 W221 S550 2016 C217 S550
2013 S550 4 matic. 103k miles. I bought it at 62 k miles. Doesn't burn oil. Lots of maintenance. NO OIL OR COOLANT LEAKS! Mechanically perfect.
Took some work to get it to this point. I am very picky though. Anything wrong and I am on it...
It's a third vehicle. I can pull it off the road for extended periods if required.
Took some work to get it to this point. I am very picky though. Anything wrong and I am on it...
It's a third vehicle. I can pull it off the road for extended periods if required.
Last edited by red996; Mar 12, 2026 at 01:31 PM.
