Can anyone tell me if my 07, S550 has the defective balance shaft gear?? I called Mercedes and they wouldn't tell me. My engine serial is 273 961 30 129 250. Thanks.

 

Affected range up to 30 088611, you're fine.

 

Thank you.

 

What's the symptoms

 

I'm not sure of the symptoms.

I brought my car in to get the conductor plate replaced and noticed two cars like mine with their engines all in pieces. When I asked why, the mechanic told me that many of the 273 engines have a defective balance shaft gear which requires opening up the engine to fix. A very expensive repair for another defective MB part!!!

Check your engines serial number, konigstiger has stated up to which #'s were affected.

Just hope yours doesn't have it.

 

Where is the engine serial # located? TIA

 

The engine serial is on the datacard which can be derived from the VIN.Provided you have not changed the engine..

 

You can subscribe to EPCnet online here :

http://epc.startekinfo.com/epc/

This will allow you to pull the datacard for your car which will include the engine number, transmission number, and a list of all of the installed options.

According to the TSB :

Equipped with M272 Engine Up to Serial No. 2729..30 468993 or M273 Engine Up to Serial No. 2739..30 088611.

The material for the balance shaft sprocket and the timing chain guide wheel (idler) was modified on engines past the serial numbers listed above.

Hope this helps,

Nick

 

Would this be covered under the warranty?

 

Yes however, MB will only approve repair if DTC (fault codes) 1200 and/or 1208 are stored – reference DTB S-B-03.30/08j. Check PM.

 

If your vehicle is still under the Warranty period. Note: that if you are out of this period, some dealers will goodwill it. Also the DTB mentioned by konigstiger has been superseded by a LI. Dealer staff are well aware of those DTC's and what the repair is.

 

LI.03.30-P-050027

 

sorry to bump an old thread. I'm looking at a 2007 S550 with engine # 273961 30 074354. It looks like it falls in the range of the affected engines. This vehicle is clearly out of warranty due to age/miles. Are there any recalls for this issue yet?

 

Recall??? Your'e on your own my friend. Mercedes makes us poor saps pay for repairs after the warranty expires, even if it is due to defective parts. Same goes for the transmission issues. I would stay away from cars within the affected serial number range.

 

Good afternoon. Would you tell me if my 07, S550 has the detective balance shaft gear…? My engine serial is 273 961 30 016084.
Sorry to bother you and thank you for your help….

 

I think if it were, that problem with have happened long ago, that car is 14 years old.

 

Yes your engine is within affected range. Defective parts were installed @ production some may offer a so-called educated guess as to when they should fail but it is inevitable they will eventually fail.

 

Of course only the V6 have a balance shaft, but the V8 I think has an idler gear in similar position.

 

can anyone

 

modern cars are all a risk - as it says in these posts above - if the vehicle you are concerned about came with the real chocolate parts, it would have failed years back

they had no idea which were really wrong - go to to merc specialist and ask - they have been fixing lots that were outside range and have had others in range that have never played up

but no doubt lots of the parts were cheap and nasty (and the replacements were only slightly better), add in abuse, cheap oils and a lack of servicing it will help any engine, by any brand, head in this direction

the last PDF is in this post

https://mbworld.org/forums/s-class-w...ml#post9226429