No code + won’t start = Crankshaft position sensor?
That’s exactly the symptoms that my older E320 had. Replaced it and car started immediately. I would think something simple like that would be easy for a dealer service tech.
No code + won’t start + no compression sounds a lot like internal engine damage. I haven’t seen any posts about the cam adjusters causing that, but a timing chain that jumps a couple of teeth can.
Keep us posted.

 

Did you ever get any attorney to look at your case?

 

I have tried to reach out to this law firm with no success. Was anyone successful in reaching them?

 

Hello I found out that I have bent valves. My thought is that it was caused by the timing chain getting out of sync or being placed on wrong when they replaced the car. Should this all be covered under the warranty if this was a cause and effect situation?

 

That finding fits with the "no compression" diagnosis. If I understand your posts correctly, the car was not running when the dealer began the diagnosis. As far as I know, the cam shaft adjusters cannot cause enough of a timing error to cause internal interference in the engine. The timing chain would seem to have been the cause of the no start and that can cause valve/piston clearance problems.
What makes me curious is that they made the repair on the camshaft adjusters before noting the bent valves. That leaves it open for interpretation as to whether the valves were bent before the repair or as a resutl of improper assembly.
You may be successful arguing the point that they caused the bent valves, but it is probably going to be difficult. I suspect they are going to say that the camshaft adjusters will not cause a no start condition and it had to be the timing chain. But since they failed to diagnose the bent valve issue immediately, maybe you can get some compensation on the labor.
These are rather expensive repairs at a dealer. Good luck.

 

Just became a forum member, as I too have the camshaft issue. My 2012 C250 with 69,000 miles triggered a CEL about 2 weeks ago and has been sitting at a dealership for a week now, as Mercedes has denied the claim based on the date the car was initially sold. Since the car was initially sold in October 2011, the car is now past the 10 year extended warranty by 5 weeks. The dealership says they tried hard with Mercedes, but they are taking a hard-line approach to the date. I contacted Mercedes directly and they are "reviewing" my case. I argued that my car is a low mileage vehicle and since the pandemic hit in spring 2020, it has been driven even less. With the CEL being triggered at around 75K and Mercedes announcing the extended warranty in November 2020, it would have been hard for me to get my CEL triggered.

To add more salt to the wounds, I never received notice from Mercedes that a potential problem existed and that an extended warranty was available. I started exhibiting problems with the car for several months now, but I never put 2 and 2 together. For example, the car was smoking a bit more and there was black soot around my bumper. I thought it was the turbo banjo bolt issue and contacted the dealership to ask them about the banjo bolt. The service advisor said my car was not affected by the banjo bolt and didn't advise me of this extended warranty on the camshaft. If I had known this was the issue, the car would have been driven a hell of a lot more to try to get the CEL to turn on.

Hopefully Mercedes will make this right, but I am not counting on it., Dealership says it will cost $2900 to repair, which includes a new timing chain as mine has stretched.

 

so sorry to hear about your situation. Mercedes are basically buttholes. I pray they are able to resolve your issue.
when they consider it an extended warranty they are not required to notify consumers. It is only when its a recall is when they are liable to do so.

You should make sure they do a compression test before any auto place replaces the camshaft and timing chain yo have some sort of coverage. Some how my valves got bent and Mercedes doesn't want to accept fault. Even though the only way it seems to get bent valves are from the timing being off.

 

You're asking Mercedes to extend the warranty extension, they've already done enough. If you have service history with the dealership they may still help. If you take your car elsewhere for repairs and just want something for free, then probably not.

 

I don't think he was searching for anything free but just to gain an understanding on why he wasn't notified. Considering this is a known issue.

 

Sorry to hear about your problem, too. It looks like the later it gets, the less likely they are to make compensation. I got mine covered, but I would be really angry with them sticking to a technicality.
Kelly Blue Book gives about $9,000 for trade in and $11,000 for private sale. If MBUSA won’t cover it, one course would be to find an independent shop that would make the repair with aftermarket parts (some won’t), which are considerably cheaper, then trade the car in immediately on something else. Not optimum, but maybe the most economical route. Between now and 100k+ miles, these cars will need things like thermostats ($650), transmission fluid & filter ($500), brake system overhaul ($1400). Some cars that have been used in states with salted roads in winter are experiencing rear sub frame failures ($2000+).

 

MBUSA used the owner in their history at the time of the extended warranty notice for mailing. If the car was sold through outside dealers or privately, they probably would not have that information. They have good histories on CPO vehicles but I doubt that they follow state vehicle registrations. That’s why I started this thread. I hope it’s helping.

 

that was not true for me. I was never made aware of some camshaft issue. Mercedes-Benz definitely have my email and mailing address because I was getting information about the airbag issue faithfully.

 

I am the 2nd owner of the car and it was purchased privately, but Mercedes did have my information, as I too was getting all the airbag notices. In fact, when I called MB USA customer service, they already had my information in their system along with the year and model; this was the first time I had ever called them. A heads up from Mercedes should have happened, especially for 2012 owners whose extended warranty window was already narrow. I was already experiencing issues for several months that were probably related to the timing, but it was never severe enough to trigger a CEL. The start-up rattle began in September, then long starts started 4 weeks ago and finally a CEL 2 weeks ago.

 

RS250-
That’s about the same as mine. The dealer actually told me no trouble found on a multipoint inspection after the rattles started. Then the hard startups and finally the CEL. But mine was repaired before the notice came out and they compensated me completely. Why you didn’t get the notice is unexplainable.

 

As expected MB USA is not budging. They said the warranty extension is a result of a settlement to a lawsuit, thus they are bound to tight terms (which I call BS). 2 MB's, all dealer serviced for scheduled maintenance (with no mention of possible extension warranty for potential problem), but no goodwill.

 

IIRC - the extension is 100,000 miles or 10 years.

I'm at 39,455 miles - but the date of manufacture is November of 2011.............

Good luck with that I'm thinking......

In other news - the little coupe has no issues (except for ESL replacement in 2020).............


ez

 

The actual warranty extension is 120,000 miles or 10 years from the warranty start date.


Extended warranties on C250

 

Thanks for your quick and informative response amigo.

Now I wonder which warranty start date applied (Our C250 coupe was a CPO purchased 8/31/14).....

I tend to spook easily - but at under 40,000 miles - - - - - - - - my concern is probably not warranted.

Thanks again,




ez

 

I posted my experience on the matter just to give other owners some insight, especially 2012 owners, as we were given a really narrow window to correct a problem. If I were in your shoes, I would take the time to learn about the symptoms of a potential camshaft adjuster issue and be on the lookout. I think someone mentioned earlier that the extended warranty on CPO purchases starts on the day of the CPO purchase, but you will need to verify if that is correct. I had been experiencing mild issues for a while now, then it just kind of cascaded over the last few months. If I had known this was an issue, I would have taken a different path when I started experiencing problems earlier in the year.

Here's a link given to dealerships from MBUSA last year. As it shows at the bottom, they were supposed to inform all owners.....

https://static.nhtsa.gov/odi/tsbs/20...83259-9999.pdf

 

My car was a CPO but on my paperwork they used the in service date which was when the car was first sold in February 2013.
Interesting things:
They don’t all fail but it looks like a significant number.
The failure is not service related. My car got the exact lubricant recommended on the sticker under the hood at exactly the recommended intervals.
The two indie mechanics I know well say they have seen a few failures under the original warranty. That means at less than 50,000 miles.
The M271 engine may not be one of the forever engines MB has become famous for. Some like the M112 were so overbuilt that vehicles with 1,000,000 miles have been reported.
Not all dealers are created equal. We are lucky enough to have 2 within a 30 minute drive. Differences are obvious.

 

Thanks for your info Senor Piggy.

It's been a beautiful little coupe for - thru several warranties - factory, CPO and the current (expensive) extension.

Next August someone will get a ten year old coupe with 41,000 or so miles...........with no warranty.

My new wife will miss it.


Season's best,


ez

 

Hi - When you had yours fixed, was it before or after the extended warranty letter was mailed out?

I personally never received one, which is VERY sketchy since I have owned this vehicle since 10K miles and bought from a MB Dealer as a CPO in 2014 that was coming off of lease.

Additionally, I had mine repaired in August 2018 at 74K miles. I have work order / paperwork from the MB dealer stating that "Cam Gear Faulty" and "Trace Noise to Cam Gear"....but "No Codes are Present". This was late July 2018, so BEFORE the Extended Warranty and requirements for the DTC Code to be present.

The Dealer's Work Order also states "Provide Estimate. Client Declined at this time". This was because they told me it was going to cost $4400!! I didn't have that kind of money and wanted to check around. A local independent MB repair shop quoted $2800, so I had it performed there. I have all paperwork for that repair, proof of payment (original receipt and credit card statements).

Given the fact that the DTC code was NOT a requirement at that time, AND the fact that they state it was faulty and provided an estimate, I wonder if I would have luck getting reimbursed my $2800+ for the repair? The Warranty Letter (attached) has a section called "Reimbursement to Customers for Valid Repairs Performed Prior to the Warranty Extension". Under this it only states these requirements:

Customers who have already paid to have any of the included components replaced may be eligible to receive reimbursement. Requests for reimbursement may include parts, labor, fees and taxes. Reimbursement may be limited to the amount the repair would have cost if completed by an authorized Mercedes-Benz dealer. The following documentation must be presented to the servicing or closest Mercedes-Benz dealership for reimbursement:

Original or clear copy of all receipts, invoices and/or repair orders that show:
• The name and address of the person who paid for the repair.
• The Vehicle Identification Number (VIN) of the vehicle that was repaired.
• What problem occurred, what repair was done, when it was done and who repaired it.
• The total cost of the repair expense that is being claimed.
• Proof of payment of repair (copy of front and back of cancelled check, or copy of credit card receipt).
• Reimbursement will be paid by a check from an authorized Mercedes-Benz dealer.

I meet all of these requirements. Has anyone had luck getting reimbursed in this situation that you are aware of?

 

it doesn't hurt to try but Mercedes-Benz corporate are a holes. If they don't pay you you may be able to join this lawsuit through connlaw Google it. Mercedes-Benz camshaft adjuster failure.

Best of luck. Iiked the body style but after what I have been through with the dealer and corporation I would feel dumb getting another vehicle with them.

 

Mine was repaired before the letter was mailed out. Repairs were done at an independent shop. That shop does have a relationship with the dealer that did my reimbursement. They helped me prepare the documentation. I don’t know if that had any bearing on the outcome.

 

i happened to find this forum topic because of this particular issue. We’ve had our 2012 C250 since Dec 2011. My wife started to notice the same problems (long start - needing 3 tries) last December and finally had it serviced jst before the year ended. They then found out what the problem was & since our car is out of warranty we had to shell out $3600+ to get it replaced. Nobody at the dealership told us about the extended warranty but at the back of my mind i know i received it some time about the letters that they sent out for this particular problem. So I then rummaged through my files and true enough, there it was. So we immediately called the dealership & told them about the letter. But lo & behold, they have determined that since we bought the car Dec 20, 2012 & had it serviced for this particular problem on Dec 30, 2021 the warranty is all void. Imagine our disgust & frustration. They suggested calling corporate since and plead our case (we’re loyal to the MB brand, our car has inly 55k miles on it, etc) but they haven’t budged. We are desperate in finding new avenues to get this resolved without shelling that amount of money since this is basically a known issue w/ this particular car. Any help would be appreciated.