[mzatz]

Hi guys

I have a W202 that is taking long to crank. I try to start the car and all i hear is dead silence, i have keep trying over and over then its cranks and starts. I took the car for diagnostics but the machine used didn't detect any fault. From mech experience he suspects replacement of the Overvoltage Protection Relay (OPR). Not sure whether this will resolve issue consisering the diagnostics machine didnt pick any errors with it......

Will appreciate your assistance.

 

[kristijan920]

I's not easy to tell you exact answer without more info.
Does lights on the dash goes dimmed when you turn to cranking position..?
What's your engine, car year..?

 

[mzatz]

Lights come on crack position then it followed by the silence.

C200 (W202),auto, 1997 with a 111 engine.....

Hope this helps

 

[bmeister]

Check the basics first such as the plugs, condition of wiring, fuel filter, and fuel pressure.
As mentioned, not much info given.
Might want to fill out your heading/profile such as year etc. B

 

[mzatz]

@bmeister , info has been provided on a later reply.

Done all those basics you had indicated, note that i mentioned that diag. wasn't able to detect any fault . Checking on wiring....

 

[georgebuhr]

If you turn it to start, and you hear nothing, then after a few second it starts to crank, are you sure its not a solenoid or relay thats stuck?

 

[kristijan920]

If all lights stay bright when you turn the key to crank position, there isn't any voltage drop, so starter doesn't work. Maybe a relay or ignition lock is faulty so it doesn't give any power to starter

 

[mzatz]

@ georgebuhr, kristijan920

Thanks for the tips, which relay in particular are you referring to. Replaced K38 & fuel pump but issue is still persistent. Want to check on starter as well as the ignition lock.

 

[DIYW202]

I have a vehicle doing similar to this 1996 c220 w202 what was the problem? I appreciate it