W169 Won't Start.

[Victor555]

Does the ECU have a fuse as can't seem to find it , ?

Reg: WN06WMK vin: WDD1690322J294702

Mercedes A class W169 A170 PETROL

The car will not start, had the AA and a mobile mechanic check fuses, relays, ran top spec autel scanner and Could not communicate with ECU ?

IS it worth sendin the ECU to a company or towing my car to a Mercedes garage ?

 

[mattkh]

The car will not start, had the AA

Did the AA check if the engine will turn over when supplying power direct to the starter motor..?

 

[Victor555]

Did the AA check if the engine will turn over when supplying power direct to the starter motor..?

Yes it does turn over when the purple wire was conected to battery .

 

[mattkh]

Yes it does turn over when the purple wire was conected to battery .

In that case I would suspect the ignition switch.

 

[Victor555]

In that case I would suspect the ignition switch.

Thanks, the key tunrns and all dash lights come one just the final turn does not start, also the dignostics scanner and Could not communicate with ECU ?

 

[Victor555]

Just found out there is no power volatge going to the ECU power pin. Have been told it could take 4-5hrs to diagnose wiring.

 

[mattkh]

Just found out there is no power volatge going to the ECU power pin. Have been told it could take 4-5hrs to diagnose wiring.

I do not have any wiring diagrams.
Push in all the relays you can see.
Check the relay chart that came with the car to look for a starter relay. If one is shown, then remove it, clean all the pins and reinsert and test.