#1: Help with overheating please Author: Hogweed, Posted: Tue Jul 18, 2017 11:12 am ---- Read through a few threads on this, but can’t find anything which is exactly the same as my daughter’s… her 206 said it was overheating a couple of years ago, got a new sensor fitted, all fine since.
Yesterday it said it was overheating again, and this time she had to top it up with quite a lot of water. Went OK for over an hour – then started off again today, got about another hour down the M4, and it happened again.
Sadly I’m not with her, and she doesn't understand cars, but over the phone, I got her to take the cap off the header tank, whereupon the level started to drop, to the point where she now needs to top it up again.
So I’m trying to work out the likely cause till she can get it home and to a garage… no obvious water on the ground; no mayo on the oil cap.
Thoughts, anyone?
Thanks
#2: Re: Help with overheating please Author: cainw1, Posted: Tue Jul 18, 2017 4:47 pm ---- Hi there, when you said it was overheating again, did it have low water again?
#3: Re: Help with overheating please Author: xrblue, Location: cwmbranPosted: Tue Jul 18, 2017 7:31 pm ---- I had this problem a few years back. I never found out the exact cause.
#4: Re: Help with overheating please Author: Hogweed, Posted: Tue Jul 18, 2017 7:42 pm ----
cainw1 wrote:
Hi there, when you said it was overheating again, did it have low water again?
Trouble is, I’m relying on 2nd-hand accounts by a teenage girl… what happened, apparently, is the needle went up gradually; when it hits the red, the coolant overheating message comes up on the console.
First time, she foolishly pulled the cap off the header, and water naturally gushed out, so that MAY have been the cause of it seeming low in the header… 2nd time, she says she took the cap off very gradually as I explained to her, and the water slowly went down as she watched… but maybe that’s normal? So long since I worked on a car, I can’t remember how anything works
Then she filled it up a bit more again, and drove nearly all the way from London to Gloucestershire without incident.
I mean, this happened a couple of years ago, and the garage just replaced the temp sensor, and it’s been OK ever since, but it doesn't get a lot of use as she’s away at Uni most of the time, and the car’s just sitting here.
Worth replacing the sensor again do you think? Is it easy to get at/cheap to buy?
Thanks for your help
#5: Re: Help with overheating please Author: cube, Location: LeedsPosted: Tue Jul 18, 2017 7:42 pm ---- I had a problem with the wife's car going through water !!
It worked out to be the thin black hose from the expansion bottle to the radiator, it had a small crack in it on the bend.
Since I repaired it, no more constant filling up !!!
Might be worth checking that ??
#6: Re: Help with overheating please Author: Hogweed, Posted: Tue Jul 18, 2017 7:44 pm ----
cube wrote:
I had a problem with the wife's car going through water !!
It worked out to be the thin black hose from the expansion bottle to the radiator, it had a small crack in it on the bend.
Since I repaired it, no more constant filling up !!!
Might be worth checking that ??
That's useful, thanks
#7: Re: Help with overheating please Author: xrblue, Location: cwmbranPosted: Tue Jul 18, 2017 8:16 pm ---- What engine is it?
#8: Re: Help with overheating please Author: Hogweed, Posted: Tue Jul 18, 2017 8:20 pm ----
xrblue wrote:
What engine is it?
Sorry, it's the XSI model, so 1.6 16V petrol.
#9: Re: Help with overheating please Author: MrBSI, Location: What's it to you? ? ?Posted: Wed Jul 19, 2017 3:55 am ---- Sounds like it now has air in it.
Might be worth replacing the thermostat & also the coolant.
Thermostat should open at 89 deg C on the petrol 206.
If you have Peugeot Planet - go in to actuator test & make sure both the low & high speed cooling fan speeds are working.
#10: Re: Help with overheating please Author: xrblue, Location: cwmbranPosted: Wed Jul 19, 2017 4:25 am ---- On my 1.4 8v there are two points to bleed air from the cooling system. one on a pipe that goes into the bulk head that looks like a tyre valve... and another on the thermostat housing a hex bolt which is a bit tricky to see and get at. both work well.
#11: Re: Help with overheating please Author: VorTechS, Location: Gloucestershire, UKPosted: Wed Jul 19, 2017 11:42 am ----
MrBSI wrote:
Sounds like it now has air in it.
Might be worth replacing the thermostat & also the coolant.
Thermostat should open at 89 deg C on the petrol 206.
If you have Peugeot Planet - go in to actuator test & make sure both the low & high speed cooling fan speeds are working.
Also, have you checked the passenger footwell for dampness? There's a coolant pipe (in two parts) that runs behind the glovebox, and it's common for the seal between the two parts of this pipe to wear down and for coolant to end up in the cabin.
This and the fan relays (the issue to which MrBSI refers) are probably the two biggest failure points of the cooling system on the 206 that I've seen.
You mentioned Gloucestershire earlier, is that local for her/you?
#12: Re: Help with overheating please Author: Hogweed, Posted: Wed Jul 19, 2017 1:57 pm ----
VorTechS wrote:
MrBSI wrote:
Sounds like it now has air in it. Might be worth replacing the thermostat & also the coolant. Thermostat should open at 89 deg C on the petrol 206. If you have Peugeot Planet - go in to actuator test & make sure both the low & high speed cooling fan speeds are working.
Also, have you checked the passenger footwell for dampness? There's a coolant pipe (in two parts) that runs behind the glovebox, and it's common for the seal between the two parts of this pipe to wear down and for coolant to end up in the cabin.
This and the fan relays (the issue to which MrBSI refers) are probably the two biggest failure points of the cooling system on the 206 that I've seen.
You mentioned Gloucestershire earlier, is that local for her/you?
Thanks both – I live in Gloucestershire, and she’s home here from Uni most of the time at the moment, yes. But although I used to, I’m not really competent to “do things” to cars any more… shaky fingers, eyes not great close up etc. So I can’t really take things apart.
Haven't got the PP diag you mention – just a generic OBD2 thingy. I’ll certainly get her to check the carpets.
Would a competent garage (mine is) know about the relays which fail?
What’s the diag for hgf? Some kind of pressure test I guess?
Cheers
#13: Re: Help with overheating please Author: VorTechS, Location: Gloucestershire, UKPosted: Wed Jul 19, 2017 2:10 pm ---- If you'd like me to take a look some time, I have PP and also live in Gloucestershire (Berkeley). Happy to lend a hand!
#14: Re: Help with overheating please Author: Hogweed, Posted: Wed Jul 19, 2017 2:15 pm ----
VorTechS wrote:
If you'd like me to take a look some time, I have PP and also live in Gloucestershire (Berkeley). Happy to lend a hand!
Oooh, just down the road - we're in sunny Nailsworth
Yes I'd love to take you up on that... could you pm me your number please?
Thanks
Roger
#15: Re: Help with overheating please Author: Hogweed, Posted: Thu Jul 20, 2017 1:25 pm ---- Just a quickie guys - I still haven't been to the car myself, but it seems to be losing about a litre of coolant a day, doing a 14-mile round trip commute. Carpets are dry.
That being the case, can we discount electronic problems etc?
One thing - she reports today that the cap on the header tank "won't tighten" - sounds like it's stripped. Might a sizeable volume of water boil out of it if it wasn't maintaining pressure for that reason?
Thanks
#16: Re: Help with overheating please Author: VorTechS, Location: Gloucestershire, UKPosted: Thu Jul 20, 2017 4:03 pm ---- If it's leaking through the cap, there should be evidence of water around the engine bay, although you've said your daughter had a mishap undoing the cap... so there probably is still some of that which won't tell us much.
I've got a spare cap you can have anyway, so we can sort that if it is a problem!
#17: Re: Help with overheating please Author: Hogweed, Posted: Thu Jul 20, 2017 4:07 pm ----
VorTechS wrote:
If it's leaking through the cap, there should be evidence of water around the engine bay, although you've said your daughter had a mishap undoing the cap... so there probably is still some of that which won't tell us much.
I've got a spare cap you can have anyway, so we can sort that if it is a problem!
Is there no end to this man's helpfulness!
Thanks again
#18: Re: Help with overheating please Author: xrblue, Location: cwmbranPosted: Thu Jul 20, 2017 4:29 pm ---- Would it be worth trying some Radweld for a quick fix?
#19: Re: Help with overheating please Author: Hogweed, Posted: Thu Jul 20, 2017 4:41 pm ----
xrblue wrote:
Would it be worth trying some Radweld for a quick fix?
Or a raw egg oh, I was tempted. Trouble is with all these things, I never have the time to sit and do them slowly and carefully etc - daughter gets up at 4:00am for her work, so if the car's off the road for even a day, somebody will have to give her a lift
She can get to work and back on a litre of added water! That'll have to do for a few days, hopefully...
#20: Re: Help with overheating please Author: Steve206, Location: UKPosted: Fri Jul 21, 2017 4:53 pm ---- After allthe comments, has she checked the oil? Could be head gasket failure.
#21: Re: Help with overheating please Author: Hogweed, Posted: Fri Jul 21, 2017 5:00 pm ---- Right, update – sorry, thought I’d mentioned at the start that there was no sign of mayo under the oil cap… anyway, by a stroke of luck a local garage was able to squeeze it in this afternoon (normally have to book 2 weeks ahead – it’s as bad as the doctor’s… )
Radiator was pretty cold, and thermostat apparently stuck, so it wasn’t getting cooled properly. Also, it seems that the header tank caps have a safety release in them, so when they get too much pressure, they “pop”, which can only happen once, then they have to be replaced. I didn’t know that, but hers had definitely popped so that’s been replaced too.
Everything else seems to be in order – if it isn't OK now, it’s hgf I expect… the next few days should tell.
Thanks so much for everybody’s help here, especially VorTechS (who still might get a visit, depending on what happens…)
#22: Re: Help with overheating please Author: Hogweed, Posted: Wed Jul 26, 2017 7:58 am ---- Looking good so far... fluid loss and overheating haven't occurred for a few days
#23: Re: Help with overheating please Author: xrblue, Location: cwmbranPosted: Thu Jul 27, 2017 4:31 am ----
Hogweed wrote:
Looking good so far... fluid loss and overheating haven't occurred for a few days
#24: Re: Help with overheating please Author: Hogweed, Posted: Thu Jul 27, 2017 7:14 am ---- And of course… she drove about 150 miles yesterday, and the temperature went up to 100. She was able to bring it back down by putting the heater on and driving with the windows open, but looks like all isn't completely right yet.
Will investigate further when she gets back
#25: Re: Help with overheating please Author: xrblue, Location: cwmbranPosted: Wed Aug 02, 2017 6:11 pm ----
Hogweed wrote:
And of course… she drove about 150 miles yesterday, and the temperature went up to 100. She was able to bring it back down by putting the heater on and driving with the windows open, but looks like all isn't completely right yet.
Will investigate further when she gets back
any more news?
#26: Re: Help with overheating please Author: Hogweed, Posted: Wed Aug 02, 2017 6:17 pm ----
xrblue wrote:
any more news?
No! I promise to report back when there is. She drove about 150 miles, it overheated a bit, but not drastically - on the same journey back, it performed fine.
VorTechS lives near me, and has kindly offered to have a go with his Peugeot Planet thingy, so I'm hoping to arrange that before long. But for now, it's being OK
#27: Re: Help with overheating please Author: gazza82, Location: South BucksPosted: Thu Aug 03, 2017 1:28 pm ---- Might have been a small airlock which removed itself.
#28: Re: Help with overheating please Author: Hogweed, Posted: Thu Aug 03, 2017 2:42 pm ----
gazza82 wrote:
Might have been a small airlock which removed itself.
Yeah, guess that's possible. Time will tell...
#29: Re: Help with overheating please Author: VorTechS, Location: Gloucestershire, UKPosted: Fri Aug 04, 2017 6:39 am ----
Hogweed wrote:
xrblue wrote:
any more news?
No! I promise to report back when there is. She drove about 150 miles, it overheated a bit, but not drastically - on the same journey back, it performed fine.
VorTechS lives near me, and has kindly offered to have a go with his Peugeot Planet thingy, so I'm hoping to arrange that before long. But for now, it's being OK
Bring it up! We can check Planet, and rule out the relays pretty quickly.
#30: Re: Help with overheating please Author: Hogweed, Posted: Fri Aug 04, 2017 3:33 pm ----
VorTechS wrote:
Bring it up! We can check Planet, and rule out the relays pretty quickly.
I will mate! Just got to pin a teenage daughter down first
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oh, I was tempted. Trouble is with all these things, I never have the time to sit and do them slowly and carefully etc - daughter gets up at 4:00am for her work, so if the car's off the road for even a day, somebody will have to give her a lift 
