14 E63 S Startup rattle....help?
Thread Starter
Junior Member
Joined: Jan 2023
Posts: 30
Likes: 8
2014 E63 AMG S
14 E63 S Startup rattle....help?
Hello,
I just bought this 14 E63 AMG S. M157 Engine. It is making a rattle on startup. I can only reproduce the noise when it has been run...sits for approximately 30 mins and then start again, it does it. I finally caught it on video. In the video it makes the noise for about 2 seconds. The longest I've heard it is maybe 4 seconds and it goes away.
I've looked around quite a bit and found some forums on it, but nothing specific besides cam chain tensioner or adjuster. Some forums say most of them do it and it is normal. Others say there's a remedy for it? Ideas? Cost?
https://youtube.com/shorts/cZODl29LtbI?feature=share
I just bought this 14 E63 AMG S. M157 Engine. It is making a rattle on startup. I can only reproduce the noise when it has been run...sits for approximately 30 mins and then start again, it does it. I finally caught it on video. In the video it makes the noise for about 2 seconds. The longest I've heard it is maybe 4 seconds and it goes away.
I've looked around quite a bit and found some forums on it, but nothing specific besides cam chain tensioner or adjuster. Some forums say most of them do it and it is normal. Others say there's a remedy for it? Ideas? Cost?
https://youtube.com/shorts/cZODl29LtbI?feature=share
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
Junior Member
Joined: Jan 2023
Posts: 30
Likes: 8
2014 E63 AMG S
Thanks for all your help. I'm going to take it in to have it looked at. I have a 3rd party warranty and I'm going to give it a shot...if they play games I'm still well within the 45 days to get a full refund. Any guesses on if this would be covered? Last question would be what is the time frame I have to fix this? Are cam tensioners a NOW issue or can this wait a week or two?
Super Member
Joined: Sep 2011
Posts: 878
Likes: 638
poop
Thanks for all your help. I'm going to take it in to have it looked at. I have a 3rd party warranty and I'm going to give it a shot...if they play games I'm still well within the 45 days to get a full refund. Any guesses on if this would be covered? Last question would be what is the time frame I have to fix this? Are cam tensioners a NOW issue or can this wait a week or two?
Thread Starter
Junior Member
Joined: Jan 2023
Posts: 30
Likes: 8
2014 E63 AMG S
Any link to this service bulletin? I guess it's my paranoia talking now 
. Annoyances I can live with, stupid repairs for lack of preventative maintenance I will kick myself forever. Thanks again Kenny.
. Annoyances I can live with, stupid repairs for lack of preventative maintenance I will kick myself forever. Thanks again Kenny.
Trending Topics
Super Member
Joined: Sep 2011
Posts: 878
Likes: 638
poop
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
MBWorld Fanatic!
Joined: Feb 2017
Posts: 2,297
Likes: 1,205
From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
Yes, get it fixed and if you are diy, it’s not a terrible job. My thoughts are that it’s worth it regardless of the level of annoyance because noise is due to lack of lubrication, creating wear, and wear means we think about all the other “ifs”. It’s my personal feeling that this issue is related to other issues such as cylinder scoring. Lack of immediate lubrication or slack in the chain when starting up have to play some part. Fwiw I have never had the sound come back after the updates to my 13 that did not have check valves or updated tensioners upon purchase. I waited a year, tried oils, additives, but noting helped for more than a few days. This procedure is an immediate fix. Fcp euro for the parts, and an Indy or dealer, and warranty. Diy I was about 600 all in. But once in there you’ll want to do turbo and coolant lines, imo. They are another five bills. Then cam magnets…. It’s all a matter of what you want to preventively fix, or wait and have warranty fix. I like to minimize my downtime and hate leaving my car at shops too long. For 1500 you can get a ton of diy done.
good luck.
Keep reading the posts and we are here to help.
good luck.
Keep reading the posts and we are here to help.
Super Member
Joined: Mar 2005
Posts: 653
Likes: 46
From: Twin Cities
Too many to list
Thread Starter
Junior Member
Joined: Jan 2023
Posts: 30
Likes: 8
2014 E63 AMG S
Yes, get it fixed and if you are diy, it’s not a terrible job. My thoughts are that it’s worth it regardless of the level of annoyance because noise is due to lack of lubrication, creating wear, and wear means we think about all the other “ifs”. It’s my personal feeling that this issue is related to other issues such as cylinder scoring. Lack of immediate lubrication or slack in the chain when starting up have to play some part. Fwiw I have never had the sound come back after the updates to my 13 that did not have check valves or updated tensioners upon purchase. I waited a year, tried oils, additives, but noting helped for more than a few days. This procedure is an immediate fix. Fcp euro for the parts, and an Indy or dealer, and warranty. Diy I was about 600 all in. But once in there you’ll want to do turbo and coolant lines, imo. They are another five bills. Then cam magnets…. It’s all a matter of what you want to preventively fix, or wait and have warranty fix. I like to minimize my downtime and hate leaving my car at shops too long. For 1500 you can get a ton of diy done.
good luck.
Keep reading the posts and we are here to help.
good luck.
Keep reading the posts and we are here to help.
MBWorld Fanatic!
Joined: Feb 2017
Posts: 2,297
Likes: 1,205
From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
It is assumed that by 2016 all of the engines had check valves installed in both sides of the engine. The timing chain was updated in 2013 (and in my 2013 produced in ‘12) The tensioners have likely been upgraded by mb since 16. If your m157 engine has this startup noise, documented elsewhere on the site as well, this is the suspected culprit. From 12-16, timing chain check valves and tensioners were all addressed in some way. You can check the part number and see when the last revision was and if after 16, you car will need them at some point.
Thread Starter
Junior Member
Joined: Jan 2023
Posts: 30
Likes: 8
2014 E63 AMG S
Car is fixed
This is my reply to the original post I made. I got the car back from my local MB dealer. The updated cam chain tensioners have been installed. Noise is GONE! I'm also glad I got it in because someone previously had replaced the turbo coolant lines and did a sloppy job. They found loose clamps and a few other missing brackets that were corrected as well. Overall they said the car is in great shape. My next project is brakes and paint correction. Thanks again for the help. All said and done I was out the door for $1966.00 of which I'm still waiting to hear if the warranty company will pick up some of the tab. I can now sleep at night.
Super Member
Joined: Oct 2015
Posts: 723
Likes: 115
From: Long Island
'16 CLS63S
This is my reply to the original post I made. I got the car back from my local MB dealer. The updated cam chain tensioners have been installed. Noise is GONE! I'm also glad I got it in because someone previously had replaced the turbo coolant lines and did a sloppy job. They found loose clamps and a few other missing brackets that were corrected as well. Overall they said the car is in great shape. My next project is brakes and paint correction. Thanks again for the help. All said and done I was out the door for $1966.00 of which I'm still waiting to hear if the warranty company will pick up some of the tab. I can now sleep at night.
Thread Starter
Junior Member
Joined: Jan 2023
Posts: 30
Likes: 8
2014 E63 AMG S
it's called Performance First through a company named Renascent Protection Services. They arent really impressing me with their lethargic response time and run around. I'm still within the 45 days of the vehicle purchase to get a full refund. My MB rep is still working on it so the jury is out. We'll see.
Thread Starter
Junior Member
Joined: Jan 2023
Posts: 30
Likes: 8
2014 E63 AMG S
I heard both sides of the argument. Some said annoyance some said fix it. I erred on the side of caution and did the repair at my local MB dealer. They did find some other things that were not right as far as brackets being put back correctly when the turbo coolant lines had been replaced at some point. Bout $2100 bucks for the updated cam chain tensioner. Haven't heard the noise since.
Senior Member
Joined: Jul 2022
Posts: 464
Likes: 99
2014 E63 / 2017 CLS 63 / 2015 G63
I heard both sides of the argument. Some said annoyance some said fix it. I erred on the side of caution and did the repair at my local MB dealer. They did find some other things that were not right as far as brackets being put back correctly when the turbo coolant lines had been replaced at some point. Bout $2100 bucks for the updated cam chain tensioner. Haven't heard the noise since.
