Traded a 2003 mustang on a 07 c230 sport upon test drive noticed cel on told salesman i would buy the car but asked him to have cel issue dealt with.Sent me to a MB dealership got the dreaded balance shaft news 5192.00 repair bill called salesman, and they told me to bring the car back and choose another vehicle. They gave me a scion xb as a loaner because they had nothing i wanted. A week goes by and they have decided to pay for the repair. My question is will the new balance shafts fix the problem for good? or are they still using the defective ones.And what other problems will this repair cause and are there any other issues affecting this model and make.I had no idea of this issue until i started researching this repair.The fact that this was not a recall is criminal very paranoid about owning this thanks for your feedback

Yes, MB found that the hardening process used was at fault & changed that process in 2008.

So a replacement shaft WILL fix that problem for good.

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MERCEDES Benz Master Guild Technician (6 TIMES)
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27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
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Wow
I just bought the same car,year 4 months ago.
After reading this i did some research, found this on Star Bulletin.

Applicable Models (Not Applicable to Model 164.156, 204 or 216.386)

: 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.

Procedure 1

Thank God it has engine# 27292030 596817. Not so lucky on the cam magnets already got CEL.

Thanks

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1995 E320
1998 E320
1999 E320 4Matic
2000 E320 4Matic
2000 ML320
2007 C230 Sport
2003 Cadillac CTS