C63 AMG (W204) 2008 - 2015
Sponsored by:
Sponsored by:

Headbolts or Cold Weather?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Feb 29, 2020 | 12:55 AM
  #1  
non's Avatar
non
Thread Starter
Newbie
 
Joined: Sep 2019
Posts: 12
Likes: 0
'09 C63 AMG
Headbolts or Cold Weather?

Hello!
I've just had my Alternator & Oil replaced for my 2009 C63 - nothing out of the ordinary but when I went to pick it up two days ago the first start I got a Check Engine Light, and scanner shows Misfires on Cylinders 1,2,5 & Multiple/Random Misfire. [CEL Codes P0301, P0302, P0305 & P0300]
I left it down to the coils being bad, and drove it back home. However, yesterday, I went to go do an errand and the Misfire & CEL were gone, so I didn't think much of it. However, I just tried driving it today and I got a "Check Coolant Level" warning. (still no CEL)
It's been raining, and I don't have a garage, so I couldn't tell if I was leaking coolant or not, and I am starting to suspect the early signs of head bolt failure.

So I am wondering:
1) Are my head bolts going, or is it just the weather?
2) If so, how much would it cost in labor to get them replaced, as I'm struggling to find a recent estimate.
3) If so, can I keep driving it or do I run a massive risk of grenading everything?

Note : I tried to contact MB Canada & US about service history, but MB Canada refuses to give me any information outside of "work on the Cylinder" back in 2011, and MB USA has no access to the Canadian records. I assumed this was when the service bulletin was still active, and assumed the bolts were done ... probably a bad idea. I also have a third party warranty, but I doubt they'll cover head bolt replacement.

Thanks in advance!
Reply
Old Feb 29, 2020 | 12:56 AM
  #2  
BLKROKT's Avatar
MBWorld Fanatic!
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2008
Posts: 8,074
Likes: 2,867
From: Los Angeles
2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Stop driving
Reply
Old Feb 29, 2020 | 01:35 AM
  #3  
Crya's Avatar
Super Member
iTrader: (1)
 
Joined: Jan 2018
Posts: 959
Likes: 168
From: Napa
2009 C63 P30
When I was researching doing mine a few reputable places were around $3,000-$3,500 range. And here in the states I had no trouble getting actual redacted service records from when my bolts were done under warranty. So there’s a win for Team USA. Good luck.
Reply
Old Feb 29, 2020 | 01:55 AM
  #4  
non's Avatar
non
Thread Starter
Newbie
 
Joined: Sep 2019
Posts: 12
Likes: 0
'09 C63 AMG
Originally Posted by BLKROKT
Stop driving
Noted!
Originally Posted by Crya
When I was researching doing mine a few reputable places were around $3,000-$3,500 range. And here in the states I had no trouble getting actual redacted service records from when my bolts were done under warranty. So there’s a win for Team USA. Good luck.
$3000-$3500 USD for labor alone? How many hours would that equate to? Also, yeah, I've heard in the US they're quite friendly but I'm getting the "privacy" runaround even though I said I'd be fine with almost complete redaction or just telling me what was done to the car verbally. The only way I got them to tell me "cylinder work" was only because the rep's tongue slipped over the phone.
Reply
Old Feb 29, 2020 | 04:11 AM
  #5  
princemarko's Avatar
Member
 
Joined: Nov 2008
Posts: 221
Likes: 9
From: Florida
CL63, 2014 ML63, 2008 ML63, R500, GLK
A good Indy shop can change them out for far less by changing them one at a time. Takes precision but can be done in place
Reply
Old Feb 29, 2020 | 04:12 AM
  #6  
G_Money's Avatar
MBWorld Fanatic!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2013
Posts: 1,814
Likes: 152
From: 'Merica
'04 E55 (Gone but not forgotten), '13 C63 P31 (RIP), another '13 C63 PP
There is an internal service history that MB keeps on cars, but I can't for the life of me remember what it's called, but that would give you a very clear history of the car

MB doesn't give it out because it contains personal info of previous owners. However most dealerships will let you look it over so you can get that good history. Call the dealer!


ETA: VMI. It's called a VMI, Vehicle Master Inquiry. Go to the dealer and see if there's any way you could take a look or have them read it if to ya.

And yeah stop driving the car wtf! Why would you keep driving it!?

Last edited by G_Money; Feb 29, 2020 at 04:35 AM.
Reply
Old Feb 29, 2020 | 06:37 AM
  #7  
non's Avatar
non
Thread Starter
Newbie
 
Joined: Sep 2019
Posts: 12
Likes: 0
'09 C63 AMG
Originally Posted by princemarko
A good Indy shop can change them out for far less by changing them one at a time. Takes precision but can be done in place
What would be the difference in pricing, and I would assume that would mean just more downtime? Also, wouldn't the integrity of the head gaskets be compromised by now ((if)) coolant was seeping into the cylinder? I'm not too technically aware so sorry for the questions.
Reply
Old Feb 29, 2020 | 06:39 AM
  #8  
non's Avatar
non
Thread Starter
Newbie
 
Joined: Sep 2019
Posts: 12
Likes: 0
'09 C63 AMG
Originally Posted by G_Money
There is an internal service history that MB keeps on cars, but I can't for the life of me remember what it's called, but that would give you a very clear history of the car

MB doesn't give it out because it contains personal info of previous owners. However most dealerships will let you look it over so you can get that good history. Call the dealer!


ETA: VMI. It's called a VMI, Vehicle Master Inquiry. Go to the dealer and see if there's any way you could take a look or have them read it if to ya.

And yeah stop driving the car wtf! Why would you keep driving it!?
Yes, a VMI was what I was referring to, I just forgot the name so replaced it with "service records". MB Canada has refused to relay anything back, and as mentioned, the best I could get them to tell me was "cylinder work in 2011" over the phone when I was doing some digging after I bought the car, and [probably] falsely assumed that meant the bolts were done. I'm going to give a few more calls to MB in the morning and drop by later in the afternoon today if I can't get them to tell me if that work involved was related to the head bolts over the phone.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old Feb 29, 2020 | 09:21 AM
  #9  
Jasonoff's Avatar
MBWorld Fanatic!
10 Year Member
Liked
Community Favorite
Top Answer: 3
 
Joined: Aug 2011
Posts: 5,351
Likes: 1,677
From: Kitchener, ON
2010 C63 AMG
Originally Posted by princemarko
A good Indy shop can change them out for far less by changing them one at a time. Takes precision but can be done in place
In this case the HG is already compromised and this is no longer an option.

Heads need to be removed.
Reply
Old Feb 29, 2020 | 10:07 AM
  #10  
non's Avatar
non
Thread Starter
Newbie
 
Joined: Sep 2019
Posts: 12
Likes: 0
'09 C63 AMG
Originally Posted by Jasonoff
In this case the HG is already compromised and this is no longer an option.

Heads need to be removed.
Got it, that's gonna be a punch to the wallet lol

I have another concern - can I let the car sit without turning it on for a while or should I try to get the repair done ASAP?
Reply
Old Mar 2, 2020 | 06:28 AM
  #11  
EMTHED's Avatar
Junior Member
 
Joined: Jul 2018
Posts: 64
Likes: 5
09 C63 AMG
I also have a 09.. be prepared for replacing the cams and lifters! Find a indy shop to do the job. Dealer will rap you dry!! Have your motor sin# researched and they can tell you if yours has the soft cams/lifters.. indy shop I found will do the HBs for $1600 includes coolant and oil.. my quote was cams are $600 each X4 plus lifters extra...
Reply
Old Mar 2, 2020 | 07:54 AM
  #12  
Jasonoff's Avatar
MBWorld Fanatic!
10 Year Member
Liked
Community Favorite
Top Answer: 3
 
Joined: Aug 2011
Posts: 5,351
Likes: 1,677
From: Kitchener, ON
2010 C63 AMG
Originally Posted by EMTHED
indy shop I found will do the HBs for $1600 includes coolant and oil..
If they yanked the heads for that price. It's either a steal, or they cut some major corners...
Reply
Old Mar 2, 2020 | 10:12 AM
  #13  
EMTHED's Avatar
Junior Member
 
Joined: Jul 2018
Posts: 64
Likes: 5
09 C63 AMG
Originally Posted by Jasonoff
If they yanked the heads for that price. It's either a steal, or they cut some major corners...
1600 was for bolts only, again motor sin# will tell them what gaskets, cams etc are In your car.. and are all extras
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 07:04 PM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE