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