my c180 is 'still dead'

[HEN]

The damn thing just stopped running,(no spark) prob cause 'CPS'. After removing it and testing,got a reading of '804'ohms,so it looks ok,(brand new one was '744'ohms) so re-fitted.Disconected the battery overnight,to reset system,still (no spark)! anyone gimme a clue ?

 

[HEN]

could it be the immobiliser ??

 

[bigasotonuk]

Hi,
What year C class are we talking about?

 

[HEN]

1996 'p' reg ,

 

[bigasotonuk]

Hi,
The red & green l.e.d.s in the mirror and the drivers door what are they doing?
Your key it is a single button, with key blade that flicks out from the side?

 

[HEN]

yup that's my key.the light's are behavin normal,(red flash when lockin,green when unlockin) they do not come on at any other time.

 

[bigasotonuk]

Your immobiliser could be one of two types at that age, its either built into the alarm immobilising the fuel pump i believe, or it is (more likely) done by a raised bevel around the ignition switch, which recognises a transponder chip inside the key fob.
This system is normally asscoiated with cars where the ECU is situated under the washer bottle.
Have you tried your spare key?

 

[HEN]

hi andy,i dont have a spare key,im not sure what you mean by 'raised bevel' ?

 

[HEN]

oh btw,someone in the garage where my car is said could be the 'ovp relay'.What is this relays function ? how do icheck it ?

 

[bigasotonuk]

Hi,
Yes the OVP relay could cause similar symptons, and i believe supplies the ECU and ABS i think, if your car has one it will be fitted on the passenger side under the bonnet, near the windscreen and can be recognised as it will have 1 or 2 fuses on it, these can fail, check the fuses and it might pay to run a soldering iron over the PCB inside the relay.

 

[HEN]

ye i remember seeing that one today,ill certainly give it a go,trying anthing a the moment.I need the car coz i work away from home,no car no job !. hada start monday gone,6 month contract =30k

 

[television]

This would not be the OVP relay I will see if it has a fuel pump relay

 

[HEN]

ye it does 'malcom' in the boot,i bypassed it last week to get the pump running,which ment it should fire up,but no go !

 

[HEN]

oh well ! me car has just been 'dumped' outside my house, complete with a few dent's n scratches' which wern't there before !!!.Anyways now the bloke is sayin ,it could be the 'ECU',he has checked power to the 'ECU' and cranking volts ect ,all ok but there dosn't seem to be anything commin from it ! He rulled out faulty immob (no flashin lights when turnin over)so it looks ok. does anyone have any ideas ??????

 

[HEN]

only me ! just had a call off me m8t,someone he know's break's 'MERC'S ,so looking at my probs im havin (no spark)etc im gettin (ECU, OVP RELAY, FUELPUMP RELAY) 'Can anyone think of owt else ???? which may 'fingers crossed' get me car running ???.P.S will a new ecu work instantly or doe's it need to be programmed for my car ?

 

[HEN]

well fitted new 'OVP & FP RELAY' no change still wont fire up ! But what i have noticed,when i used to turn off the ignition (when it was 'running') there was a sort of "CHIME" that used to sound 3 times. What is this SOUND ? and why aint it doing it now ?

 

[hardtop]

i get that but its the sony sterio

 

[HEN]

ahhhh your right mate,but the reason why i cant here it is (SOME THEIVIN GIT HAS HAD IT AWAY) i suppose that 'sums up' the luck im having lately ! 'or lack of it'

 

[dragon]

Don't mention dead, pls. It gives me a chill as my 97 W202 is back on the road. On reading your post all sorts of whatifs may happen to my W202.

What if the exhaust breaks while I am in central London?
What if I couldn't start the car because of the immobilier/security module kick out?

 

[HEN]

All i want is 'a spark', not much to ask for is it ?