indicator problems

[paresh21272]

hello team, can you help i have bought a c180 95 on a m-plate and it is sweet. i have got this indicator fault that is making me tear my hair out.

i will be driving and all of a sudden both indicators will appear ON. this can happen when the car is locked at night aswell. the lights completley overide my indictors stalk so i cant tell others i am turning. they just stay on. i can press my hazard switch but because boths sides are ON the hazard relay does not click.

at times i can here it twitching near the steering wheel. and then the indicators flicker and either stay on or go off. they can do this indipendantly aswell

this especially happens when the cabin gets warm. so i genarally have to drive with the cold air blowing but this then causes the engine temp to hit 100'c. is this normal to

so far i have replaced my indicator mother board and full hazard switch from merc dealer.

any ideas where i can resolve or investigate would be fantastic thanks. thanks paresh if it helps
paresh21272@yahoo.co.uk

 

[jberks]

You don't have an after market alarm do you?
These are often wired into the leads coming off the switch and could short or be driven by a faulty alarm control unit.

 

[Parrot of Doom]

Have you tried changing the relay that controls the indicators?

 

[television]

Is your a 202 078 /035 or 203 235

Malcolm

 

[paresh21272]

not sure

hello television, your help is very appreicated you have an abundance of knowledge. can u tell me what you mean by those numbers. it is fitted with a factory alarm that sounds the horn and indicators when tripped. however it does not blink the indicators when set. it has those green and red lights on the mirror that everyone talks about.
if i install a new cobra alarm do you think it will solve so far i have spent £300+ and still not fixed the fault a new alarm is costing £220.

 

[television]

Your chassis number 202 78 or 35 or 203 235

Malcolm

 

[paresh21272]

re: chasis num

thanks malcolm i find out and let you know
paresh

 

[paresh21272]

indicator fault

hi malcolm i checked the vin plate and the second from top set of numbers on the left side starts with 202018 is this the type of chasis num you require

thanks for you help happy new year to you and all members
Paresh

 

[paresh21272]

indicator fault

hi malc any ideas for a 202

 

[Ash145]

Paresh, I Had a similar problem on 1996 C200, it turned out to be the battery on my remote keyfob. Sounds bizarre i know but it wasnt fully disarming the alarm and allowing the indicators to flash when they felt like it even though the car started and ran fine.

 

[paresh21272]

indicators

you know i thought of something like that, but thought i was silly, sounds like something KITT would do of knight rider, i was thinking could it be telling me to change the alarm battery, well i will give it a go as i would prefer to pay a fiver than £250. i ran a fault diagnostic and it didnt show anything.

thanks for your help

 

[television]

I have given your problem a lot of thought. We can ignore the hazard switch since that only operates the flasher units, and no direct connection to the indicators, this can be proved by taking out the flasher unit.It cant be on the stalk as also no direct connection. The only place on the car where this can happen is the instrument cluster or on the the alarm itself. With the instrument panel the flasher wires are on the end of the multi plug (black blue tracer for left and black with green tracer for the right) the only thing here is that it would take two faults to light up both sides at the same time. so this only leaves the alarm itself. The wires are the same colour as above and they go into the alarm. The alarm is under the dash. Electronc components seldom if ever go intermitant and the fault could be no more than a bad soldered joint.Maybe a sticky relay,I have never opened one up, it is nothing to do with the remote fob.

Malcolm

 

[paresh21272]

indicators

thanks malc my next operation will be on the alarm,
might even chuck a new one in,
after that its the two relays behind the temp controllers,
my merc is a dream car i waited for 15 years to get one, however much i hate the fault when it works it works and the recognition is something no bmw will give me.

i let u know how i get on
paresh

by the way ihave been pressing the alarm fob for longer whilst locking and unlocking, i havent seen it plague me could this be the problem or anything to do with it. but knowing me i prob speak to soon and on the way home it will happen again.

i think i hear them audi's knocking on my bank ballance

 

[television]

Could well be,I am so sure that it is on the alarm, being the only common place.

I do not know what is in the alarm but a dry joint or dirty relay can cause it.

Good luck

Malcolm

 

[paresh21272]

result

ha ha ha there is a mercedes god. right here it is my indicators is fixed yahoo.
it turned out to be a big block white relay that turns the indicators on and off relay -----thats the technical term, it sits in the boot with the other electrics and controls the indicator flasher with alarm link. the alarm still works if it is unplugged and the car starts up so if anyone has that problem of the indicators staying perm on whilst driving check that unit out.

i am getting a price to have it repaired or replaced and as soon as that comes back it will be on your screens.

cheers for all ya helps people

 

[television]

ha ha ha there is a mercedes god. right here it is my indicators is fixed yahoo.
it turned out to be a big block white relay that turns the indicators on and off relay -----thats the technical term, it sits in the boot with the other electrics and controls the indicator flasher with alarm link. the alarm still works if it is unplugged and the car starts up so if anyone has that problem of the indicators staying perm on whilst driving check that unit out.

i am getting a price to have it repaired or replaced and as soon as that comes back it will be on your screens.

cheers for all ya helps people

As it was intermitant it will only need to be re soldered, if you are not confident, look in your phone book for a TV guy who works from home.I was almost on the spot with this, it had to be where the two circuits meet.

Malcolm

 

[laika]

found this thread via a google search trying to solve the problem with my '02 sprinter 316cdi which has an intermittent "continuous near side indicator" problem ie the left side indicators stay on all the time, even when the ket is removed, i have a meta m999t alarm fitted if that is relevent or could it be the stalk or a relay.

any feedback would be greatfully received.

Alan.

 

[television]

Sounds very much like the same thing,the hazard lamps are the only ones that can be activated without the key, so I think you can forget the stalk, you could unplug the relay,and try, otherwise it should be the arlarm, try by giving it a thump.
'
Malcolm