Quote:
Originally Posted by bustedbenz
Once and for all lol -
Do they go off when you START cranking?
Or do they go off when you STOP cranking and the engine is running independently of the starter?
It's important  |
Good question - IIRC on my 300SD they went off when the starter was engaged. They probably do this so 100% of the power goes to the starter while it is cranking.
It is possible that different models did different things too but they definitely stay on after the light goes out though which was what I was trying to correct. The light is nothing more than a "guide" to help the driver know when to start cranking but if you read the manual I think it says something to the effect that in extra cold conditions you should do two cycles before attempting to crank.