Stop warning on c5 110 hdi

This is the Forum for all your Citroen Technical Questions, Problems or Advice.

Moderator: RichardW

Post Reply
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

Stop warning on c5 110 hdi

Post by boristhespie »

Hapened a couple of times a couple weeks apart. The stop sign and alarms come on when starting but then it goes off and is okay. Has had new head gasket last year. Hope its not that. Also suspension lights all light up at once with alarm occassionally when full beam is put on and airbag light is on all the time which i think resulted from stuffing stuff under the seats.

So what could the STOP sign indicate. I'm s**t it.
C'est pas possible!
User avatar
The Birdman
Posts: 182
Joined: 13 Mar 2011, 09:24
Location: Antrim,Northern Ireland.
My Cars:

Post by The Birdman »

Maybe temp sensor or oil sensor on the way out , any codes?
For what we are about to receive may we be truly thank full.

http://www.citroencodes.com" onclick="window.open(this.href);return false;

http://www.peugeotcodes.com" onclick="window.open(this.href);return false;
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

Post by boristhespie »

Hope if it is a prob thats all it is. Will try lexia on it to see codes
C'est pas possible!
RichardW
Forum Treasurer
Posts: 10814
Joined: 07 Aug 2002, 17:12
Location: United Kingdom
My Cars: MK2 '17 C4GP 1.6 BlueHDi 120
'13 3008 1.6 HDi GripControl
x 984

Post by RichardW »

Low water level brings the lights on like this on a Xantia - that's an easy check. Working out where the water went.... :?
Richard W
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

Post by boristhespie »

Water?!!!!

Are we talking coolant?!!!

Hope it's not my head gasket again.!!

Did the warning again.

Lexia is giving problems. Worked okay but now nope.

Hope it's not head gasket.
C'est pas possible!
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

Post by boristhespie »

Okay just went out in it. Has been aitting for a while. 5-6 hours.


Drove for about a mile around town and warning came on.

In all it came on for three beeps over 5 minutes three times.

At the same time the temperature warning light came on for the second or so and more weirdly the dial on the left of it shot up from resting to half way and then fell back again.

It did this each time. Went from resting to mid point and then fell back. Took a second or two in all.

Checked coolant reservoir. Was warm but nothing scorching and was up at the level.

The rubber pipes to and from it to the radiator for example was hot but not uncomfortably so.

Will have look in morning. Pouring of rain right now.


If it is headgasket then I will be getting rid. Not mucking about with citroen again had too many problems.
C'est pas possible!
wheeler
Posts: 6848
Joined: 21 Sep 2002, 19:07
Location: United Kingdom
My Cars:
x 717

Post by wheeler »

An instant jump up in temerature + all the other things suggests just a faulty coolant temperature sensor. The green one in the thermostat housing. Quite an easy fix to replace it.
dnsey
Posts: 1538
Joined: 20 Oct 2004, 01:39
Location:
My Cars:
x 19

Post by dnsey »

If you still have your other C5, just swap the sensors to check the diagnosis.
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

Post by boristhespie »

It does seem to be instant.

The car will go BEEP BEEP BEEP when these are aounding the STOP light comes on and the guage on left light comes on and the needle jumps from cool to midway. When the BEEPs finish the lights all go off and the needle falls back to cool. It is only one or two seconds.

Have to say there does seem to be a few electricla faults on this car.

All the suspension level lights will come on at same time and Three BEEPS will soynd.

And when driving three beeps sounds as te airnag light comes on permanently. This oxcured when i pill loads of aruff from under seats which is where the wires are I hears.

All i know is that I nees rhis latest sorted before ot tirns into somethong bad.
C'est pas possible!
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

Post by boristhespie »

Okay been to garage. I thunk he's fed up with seeing me. He wisnae there.

Anyway mechanic said it maybe air in the coolant. So run the car with resevoir off to bleed air out.

That was it.

Can't use Lexia so don't have code, although mechanic said the light is just a warning and there wouldn't be a code. This only comes if there's a engine management light?

What do you guys think re his advice???
C'est pas possible!
User avatar
Paul-R
Donor 2023
Posts: 6916
Joined: 07 May 2009, 16:24
Location: Wirral, NW England; Vaucluse 84, France
Lexia Available: Yes
My Cars: 2015 1.6 Blue HDi 120 Peugeot 308 Active SW
2013 2.0 HDi 163 C5 Exclusive Tourer
2003 2.0 HDi 110 C5 Exclusive Estate (Gone)
2001 2.0 HDi 90 Xsara Estate (Gone)
x 1369

Post by Paul-R »

It could be air and a Lexia certainly wouldn't throw up a code for that unles the engine became seriously mismanaged.

I can't remember for sure but there are two or three bleed points to take air out of the system if it gets in - just removing the header tank cap won't shift it. Have a look on the thermostat housing and where the heater hoses go into the bulkhead (they're like that on the Xsara so I'm just guessing).
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.

Inside every old person is a young person wondering what the hell happened.

"Trying is the first step towards failure" ~ Homer J Simpson​
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

Post by boristhespie »

Doe this sound like a fault that would lead to the symptoms above?
C'est pas possible!
User avatar
Paul-R
Donor 2023
Posts: 6916
Joined: 07 May 2009, 16:24
Location: Wirral, NW England; Vaucluse 84, France
Lexia Available: Yes
My Cars: 2015 1.6 Blue HDi 120 Peugeot 308 Active SW
2013 2.0 HDi 163 C5 Exclusive Tourer
2003 2.0 HDi 110 C5 Exclusive Estate (Gone)
2001 2.0 HDi 90 Xsara Estate (Gone)
x 1369

Post by Paul-R »

I have to say i don't think so but I could be wrong.

I think I would change the temp sender first, as suggested above, especially as you have a source of spares! With the right technique you can lose very little coolant indeed.
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.

Inside every old person is a young person wondering what the hell happened.

"Trying is the first step towards failure" ~ Homer J Simpson​
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

Post by boristhespie »

is that the thingie in the top of the reservoir the rectangluar thingie?

The mechanic unclipped and took out. I have some small amount of oil in the reservoir from my headgasket replacement and he wipes some off of the probe (it is a probe)

Wonder if the oil may have affected it?
C'est pas possible!
User avatar
Paul-R
Donor 2023
Posts: 6916
Joined: 07 May 2009, 16:24
Location: Wirral, NW England; Vaucluse 84, France
Lexia Available: Yes
My Cars: 2015 1.6 Blue HDi 120 Peugeot 308 Active SW
2013 2.0 HDi 163 C5 Exclusive Tourer
2003 2.0 HDi 110 C5 Exclusive Estate (Gone)
2001 2.0 HDi 90 Xsara Estate (Gone)
x 1369

Post by Paul-R »

No, that'll be the low coolant warning switch.

The temperature sensor is in the coolant outlet housing on the LH side of the cylinder head. Haynes says it can be either held in by a clip or screwed in - I think it's clipped in. Anyway, you should be able to find it on your donor car and check.

Assumimg you have the sensor from the old car first release any pressure by removing the cap from the expansion tank and replacing it. Then, after rmoving the clip, swiftly remove one sensor and, assumimg they're the same type (they should be), pop the other one in. You can put your thumb over the aperture if it helps.

Slide the clip back and you should be OK. I've not done this on my C5 but I have done exactly this technique on my daughter's VW Polo and I didn't even lose enough coolant to worry about topping up.
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.

Inside every old person is a young person wondering what the hell happened.

"Trying is the first step towards failure" ~ Homer J Simpson​
Post Reply