1995 C280 Sport electrical probs help please...

[grchmason]

Hi peeps

First post here and sorry to be a negetive one lol

I have a 1995 c280 sport and i am getting a few probs my temp gauge works one min the it doesnt and i have no rear brake lights and yes cheaked the bulbs and all fuses fine

I know the c280 suffered eletric probs. Im really after some help on what to do next ?? and wondered if any others have had a similer prob??

Thanks in advance

Terry

 

[grober]

The brake lights are possibly due to a faulty brake light switch behind the brake pedal Cheap to renew and an easy DIY. Temperature gauge check the connection at the front of the engine under the black cover. Handle with care your car is in the faulty engine wiring loom age band. If the insulation is brittle/broken then you have problems that will require attention sooner or later. If not try carefully cleaning up the connection to the sensor to see if that helps. The sensor itself could be faulty of course.

 

[NW_Merc]

The brake lights are possibly due to a faulty brake light switch behind the brake pedal Cheap to renew and an easy DIY. Temperature gauge check the connection at the front of the engine under the black cover. Handle with care your car is in the faulty engine wiring loom age band. If the insulation is brittle/broken then you have problems that will require attention sooner or later. If not try carefully cleaning up the connection to the sensor to see if that helps. The sensor itself could be faulty of course.

When the wiring loom fault stop and where did it start from? I'm concerned as I've got a '94
C180

 

[grober]

1994-1995 plus or minus a few months are the main years affected AFAIK. I have heard several versions of the time interval quoted . Since the fault is related to under-bonnet temperatures the sixes and V8s are worst effected as are cars that are driven in hotter climates.

 

[Mark300SL]

93-95 as I understand it

All 1996 manufacured cars should have the new harnesses

 

[KillerHERTZ]

When the wiring loom fault stop and where did it start from? I'm concerned as I've got a '94
C180

IIRC, it only concerns W124 looms...

 

[Mark300SL]

IIRC, it only concerns W124 looms...

I thought it was all efi M104 engines
It certainly has affected my 3.2 in my 190E - and that came from a 1993 S320

 

[grchmason]

The brake lights are possibly due to a faulty brake light switch behind the brake pedal Cheap to renew and an easy DIY. Temperature gauge check the connection at the front of the engine under the black cover. Handle with care your car is in the faulty engine wiring loom age band. If the insulation is brittle/broken then you have problems that will require attention sooner or later. If not try carefully cleaning up the connection to the sensor to see if that helps. The sensor itself could be faulty of course.

Thanks for your help the brake lights are now fixed thanks to your advice it was indeed the switch it came unpluged a simple plug back in

fuse number 12 and 4 for the istrement cluster when some times wiggled the temp guage come on and off so i think there is a prob under fuse box gonna have a proper look at the weekend

Thanks for all your help

 

[grober]

Thanks for your help the brake lights are now fixed thanks to your advice it was indeed the switch it came unpluged a simple plug back in

fuse number 12 and 4 for the istrement cluster when some times wiggled the temp guage come on and off so i think there is a prob under fuse box gonna have a proper look at the weekend

Thanks for all your help

Sometimes the fuse holder contacts can corrode and make bad contacts with the ends of the fuses. Try cleaning up the contacts on the suspect fuses and see if things improve.