M157 Problems and Tune Up
Thread Starter
Newbie
Joined: Jan 2019
Posts: 6
Likes: 2
From: Arizona
CLS63 AMG
M157 Problems and Tune Up
Hi Guys! I'm new to MBWorld even though I've owned a CLS 550 for a while now. I've recently found a 2012 CLS63 AMG (W218) and a 2013 E63 AMG (W212, V8 Biturbo) both with a bit less than 72k miles on it. I heard that the M157 motor is great and pretty reliable. I know some people (not personally) still tune theirs with 100k+ miles on them. My knowledge on the M157 motor is very limited, I know that it's got forged internals and that it's very strong could easily handle 1000hp without a rebuild. But what are some common problems on it? Like for example the M156 with the head bolt issues. I'm also going to do I tune up for the vehicle after purchasing it. I'm thinking Pads & Rotors, Engine oil & filter, Transmission oil, Diff oil, and new Sparks Plugs. Anything else you guys could recommend replacing, such as seals, etc? Also the 2013 E63 AMG also comes with Carbon Ceramic Brakes, how many miles should I change the rotors on that? I heard you don't need to replace Carbon Ceramic rotors with in 100k miles.
Thank you guys and Happy New Years!!!!!!
Thank you guys and Happy New Years!!!!!!
MBWorld Fanatic!
Joined: Apr 2009
Posts: 1,433
Likes: 119
From: Behind the wheel
The best or nothing
CCB should last up to 300k miles.
The engine maintenance you are describing should be fine at 72k. Maybe decarbonising could be a good idea too. Other than that, the M157 is very reliable, there is only one small issue with the valve timing cover A2760150201 leak, it is in front so if you undo air intakes you'll see if there is some oil around the seal. The part no. A2760150201 is Mg and the block is Al, that may be the reason for the reseal need.
The engine maintenance you are describing should be fine at 72k. Maybe decarbonising could be a good idea too. Other than that, the M157 is very reliable, there is only one small issue with the valve timing cover A2760150201 leak, it is in front so if you undo air intakes you'll see if there is some oil around the seal. The part no. A2760150201 is Mg and the block is Al, that may be the reason for the reseal need.
Super Member
Joined: Nov 2010
Posts: 746
Likes: 48
From: Queens,NYC
2014 E63s 1993 mazda rx7 on Boost
2014 63s
Jan, can you reseal the cover with silicon. I did this on an X5 V8 simple and would think that the 63 design would be the same where you can pop off the cover reseal and install.
MBWorld Fanatic!
Joined: Jun 2006
Posts: 6,649
Likes: 207
'03 E55, Range Rover Sport Supercharged, Ducati 748R
The motor itself is pretty damn reliable but all the plastic coolant lines will start leaking shortly after 100k miles and keep an eye on injectors as they can start to go at that time as well.
MBWorld Fanatic!
Joined: Apr 2009
Posts: 1,433
Likes: 119
From: Behind the wheel
The best or nothing
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
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
Thread Starter
Newbie
Joined: Jan 2019
Posts: 6
Likes: 2
From: Arizona
CLS63 AMG
Cool thanks Peter! Since the car is private owned, a friend of a friend. So I'm taking it to a Mercedes Dealership for a Pre Purchase Inspection. They should pick up most of these problems right?
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
yeah.... NO. You'll be wise to walk through the car with them regarding these items
