Brought car to dealer to have 2 rear tires replaced. The check engine light came on a day two ago and I did not think much of it as the car has been in the garage and it had just had a Serice B or A...
Dealer called to tell me that the check engine light was on due to a cracked intake manifold!! $2,100 thank you!
Mercedes M272/M273 [V6 and V8] intake manifold fault, flapper controlling arm breaks causing car to hesitate and malfunction. Throws numerous codes and check engine light
Mercedes dealer fix, replace the complete intake manifold. very expensive repair.
DIY fix replace the control arm only and not the complete intake manifold, available from alternate sources[non-Mercedes].