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Turn it off and it will not start again for an hour?

Tiny
DAVID COGAN
  • MEMBER
  • 2006 MERCEDES BENZ C230
  • 6 CYL
  • 2WD
  • 180,000 MILES
If I start the car, it runs fine. Turn it off and it will not start again for an hour or the next day. If I jumpstart the car it will start. Battery is brand new.
Key fob light comes on but infrared light I cannot see.

Sunday, July 10th, 2022 AT 8:43 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,877 POSTS
I have seen a weak crankshaft angle sensor cause this issue, but we should run the codes to see what comes up first. This guide can help you get started; also, I have left the location of the crankshaft angle sensor in the diagrams below just in case.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Check out the diagrams (below). Please let us know what happens.
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Monday, July 11th, 2022 AT 2:27 PM
Tiny
DAVID COGAN
  • MEMBER
  • 2 POSTS
So, I tried to start the car today. I left the negative connection off all night. Reconnected and the car wouldn’t start.
I tried jumping it from my truck and no luck.
I have the paperwork from the code read yesterday.

I have ordered the mass air flow sensor. Will install tomorrow.
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Monday, July 11th, 2022 AT 6:19 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,877 POSTS
Does the engine crank over? If so, you can try to unplug the MAF sensor to see if it starts, if so, get a new sensor.
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Tuesday, July 12th, 2022 AT 11:02 AM

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