It is good that you know when you are over your head. I think it is best to get the engine repaired correctly than to try to mask the problem. As for me, I am that 1 tech at the shop that does do involved diagnostic work. BE SURE OF WHO YOU TRUST WITH YOUR CAR!
ASE CERTIFIED MASTER AUTO TECHNICIAN
LEAD TECHNICIAN FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM