MBAdon

Just bought my AMG last week and this is the second time my check coolant warning came on. They are keeping my car, its the headbolt issue. Lucky me. So now Ive got a C250 efficiency model as a loner. I give them an AMG and they give me back half my cylinders. Awesome. Well fingers crossed. Hope my new engine lasts.

m a x i m u s

What year is your 63? I'm in mobile so I can't see your info that appears in the left column ...

And I hate when they give me crappy loaners. Seems like rental agencies love to lump our 63's into the pool of regular c classes. To be fair, they should at least give us a base e class.

CoolBDPhenom03

It's an '09.

Read up on coolant threads and head bolt threads. This is a known issue and they will replace several components in your engine (long story short).

jrcart

Headbolts

Dogtag114

How many miles on the car?

MBAdon

My AMG is an 09 with 36,000 miles on it. They confirmed it is the head bolt problem and they will be keeping my car all week doing the upgrades. I had 15 days left on the warranty. Talk about cutting it close.

jrcart

Go buy a Powerball ticket my friend, luck is on your side.

CoolBDPhenom03

Way to dodge the bullet! They'll take care of you and it'll be like new. With more of these issues popping up, I wonder if the class action will be reopened.

jrcart

There was a class action on the headbolt issue? I knew there was one for the cams wearing but never heard about the headbolt suit.

Point2Point

There's confusion between the cam wear class action suit and the head bolt problem. I don't there is any class action suit for the head bolts.

CoolBDPhenom03

Hmm, it might be time...

m a x i m u s

MBUSA is for sure cursing the timing on this one! Lol.

CoolBDPhenom03

As opposed to us cursing them for being out of warranty?

morganb

Was the car running OK? When mine went it started to run rough.

wawrecker

Curious, I see more of the head bolt issue on the C63 then the E 63, I thought they were basically the same engine, am I missing something? Thanks

cyberorth

I have asked that question from AMG people before and they confirmed that all m156 are the same. I do share this suspicion as well. The same engine went in a $140000 SL and $160000 CL so I kinda think that an invisible hand signs off the Monday and Friday engines to the Cs

morganb

Theres a CLK63 here in Australia that has had 3 motor replacements according to an independant Merc dealer who I will not name. Not only the C's are having this issue. Anyone know the relative number of C63 vs E63's sold. That could affect what we see.

Yamdan

Makes me bloody nervous about my 2009 C63 but at the same time not all of the 156 engines seems to have this issue.

From what Ive heard here in Sweden there has hardly been any cars with this. And still sold quite few over here.

So keeping my fingers crossed

From M to AMG

So when you say it has, "This issue," Are you saying that the headbolt head sheers off, or just warps and doesn't create a good seal?

If it's the former, i would say changing the headbolts as a preventative measure would be easier than tring to fix a headbolt without a head...

ShaneN.

It's probably the biggest thing holding me back from buying one as 09/10 is in my budget.

yazid

so what are the items that are being replaced in the engine?

MBAdon

Just to answer some of he questions. My car is coming back to me tomorrow with all new head bolts and the upgraded lifters that I requested to avoid the cam wear issue. They did not say what shape the head bolts where in. I'll have to ask tomorrow it any had been sheared off. I was loosing an inch of coolant a week. The first week they just refilled it but the second week I said this looks like the head bolt issue and left the car with them.

I was going to buy an extended warranty but this problem is what I wanted protection from and it's already taken care of so now I'm not sure.

Mike

MBAdon

I made sure to drive the ***** out of it the past few weeks. If something was going to blow I was making sure I happened before warranty was up!

CoolBDPhenom03

What's the warranty offer? There are some random things that might pop up, nothing as severe as the headbolt issue, of course.

MBAdon

There's an aftermarket warranty they offered me that's like 48mo 60k for a little under 3k. Not too bad and about $400 cheaper than the factory extended warranty.