Mercedes E200 1999 W210 2.0 Petrol Manual

[jimh]

Hi
I have a 1999 Petrol Manual E200, I turned the key 10 days ago and no starter, I followed forums that led to the K40 relay where we found a fuse kept blowing as soon as the ignition was turned on - We replaced the K40 but no joy - We disconnected the Fuel pump and the starter and still the fuse blows - we started disconnecting the connections in the K40 and found that when we disconnect the long thin connector that runs in a line with the bank of fuses then the fuse does not blow but we have no starter - though it is a long connector it only has two wires and both run into the same point in the connector - one is a pinky/red colour and the other is the same with a blue stripe running through it - We cannot trace what these are being fed from/are feeding - Somehow this problem cleared a few days afterwards and the car started a few times before the problem with the blown fuse reoccurred and we have not got it to turn over since

 

[jimh]

the relay type is OVP 0005400072 K40

 

[martyz]

Sounds like you have a short circuit in either the starter motor or solenoid.OVP stands for over voltage protection.

 

[jimh]

If we disconnect the starter then the fuse still blows so I don't think it is the starter but if we remove this connector then the fuse does not blow but still no starter but we know not what it feeds
Thanks

 

[shirleydrive]

Hi Jimh

Can you tell us which fuse is blowing. I have circuit diagram for E320 of a similar year. Wiring to K40 may be similar.
Mike

 

[jimh]

I think it is the 2nd one from the left I think it is a 20 amp but we have blown that many I cant remember if it was 15 or 20 when we started in the picturein the link below it is the 20 amp fuse

http://www.ebay.ie/itm/Fuse-Box-OEm...r_Truck_Parts_Accessories&hash=item41752a2c78

 

[shirleydrive]

Hi Jimh

The 20 amp fuse (fuse 5) supplies the fuel pump vi the fuel pump relay (k27) via the red/blue cable. The red cable goes to the ECU.
Mike

 

[jimh]

Thanks
Where is the Fuel pump relay located? -

 

[shirleydrive]

Jimh,

Haven't been able to locate position of k27 relay so far - still looking. I assume that you disconnected fuel pump at the fuel tank . If that is the case it would indicate the fault is in the cable or relay between k40 and fuel pump.
To prove this I would run a temporary cable between pump and relay. Do not disconnect the red cable. When I find k27 will be in touch. Best of luck,
Mike

 

[jimh]

I think it is in the battery compartment in a cradle beneath the rear seat -I can see the red/blue wire going under the relay and then out into the fuses No 6 is the Fuel Pump Fuse and that is ok but the wires at the fuel pump are a different colour and don't seem to run to the fuse box so we are lost again. Trying to get an auto-electrician to have a look but they seem to want the car to come to them rather than the other way around

 

[jimh]

Turned out to be a chafed wire in the wiring harness - €100 well spent on an auto electrician

 

[shirleydrive]

Hi Jimh,

That's really good news. As a matter of interest, which wire was it?
Mike