Engine will not turn over by hand?

2012 MERCEDES BENZ C300
100,000 MILES • 2.5L • 6 CYL • 4WD • AUTOMATIC
Avatar
GLEI_SHENAJ
  • MEMBER
  • 2 POSTS
Hello!
I have a W204 facelift C300 4 matic with a 2496 cc engine. My car had problems with the starter motor but after 2 months of the car sitting my car won’t turn on. I removed the belt and tried to turn on the engine by hand, but it wouldn’t move. When I tried to turn by hand the car was at P. Do I have to put my car on Neutral to turn on the engine by hand?
Oct 9, 2024 at 12:19 PM
Advertisement
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
No you do not, the parking action is handled by the transmission. I would remove the drive belt and then the starter motor, also try removing the spark plugs, and then try tuning it by hand again. You may have a blown head gasket.

This video may help:

https://youtu.be/oN42gZN6gOE?si=3JVGA-R5BHcb2xr6

Please go over this guide and get back to us.

Oct 10, 2024 at 12:08 PM