finchy

Hi wondered if anybody can help 2002 S500 won't start. Have supurb ignition spark and turns over perfectly just isn't getting any fuel to engine.

Please can anybody tell me

1 where the fuel relay is located
2 what colour is it ?
3 what is the part number
4 anyway to test it or to bypass it just for faultfinding purpose

p.s any photos of relay and location would be supurb

Finchy

finchy

Any ideas guys?

I am starting to think maybe something to do with the vehicle immobiliser as the car has had it's battery disconected for sometime.

finchy

Odviously not is the MB Tech on holiday i would have thought a relay location was not too much to ask.


Liam

Vader55

If the battery has been disconnected for some time the key needs to be re-programmed.. You can try leaving the key in the ignition for a day or so and see if that works.. This happened to my friend's S500 and he had to do something like I described. call a euro tuner repair shop.

Hightower

keys dont need reprogramming unless its very serious and they obviously dont if it spins the engine over, have look in the spare wheel well where the tools are there should be a relay list in there.

MBHustla858

check for power at the fuel pump, whe n ur cranking it.......

derffred

when you get to the relay... take a jumper wire and go from pin 30 to 87 in the fuse box... if you have power at one side of the relay, the wire will transfer it over (bypassing the relay) and go to the fuel pump.. if it starts.. you have a bad relay, if it doesn't... the relay is not the problem