Hi peeps, friend of mine has a 2006 pug 307 cc, 2.0 jobbie.
it is overheating, fan not coming on, i replaced the stat a couple of months ago and all was fine, fan working etc, today she rings up, it has boiled
up and the fan wasnt running.
anyone a fan of these cars or know of an independant pug specialist around the Portishead / Bristol area as i dont really want to get involved, the
electrics seem to be a nightmare and there is no workshp manual available 
Not had a 307, but have had several 205s and a 306, each of which had a Haynes manual available. Although reliable enough cars electrics (wiring)
could be difficult to trace through. That said I suspect many cars are the same.
Your thermostat approach seems logical to me. I guess the next step would be a fuse check.
You're right though to be looking for a garage and not get drawn too far into it yourself.
They have a relay control unit which sits on the fan cowling it a common failure plus terminals can burn out fuses are in the fuse box in the engine
bay
[Edited on 19/7/18 by ian locostzx9rc2]
https://haynes.com/en-gb/peugeot-307-petrol-diesel-01-08-haynes-repair-manual
cheers guys, the Haynes book of lies does not cover the CC engine tho and a lot of stuff is specific to the CC, the relay box looks interesting, ill
have have a punt round for one, as for wiring being difficult, she had a number plate bulb go, i put one in and it was still out, turned the lights
off and on again, lights come on, remove and repeat and got the same result, it was at that moment i decided i should should take up knitting instead
quote:
Originally posted by theconrodkid
cheers guys, the Haynes book of lies does not cover the CC engine tho and a lot of stuff is specific to the CC, the relay box looks interesting, ill have have a punt round for one, as for wiring being difficult, she had a number plate bulb go, i put one in and it was still out, turned the lights off and on again, lights come on, remove and repeat and got the same result, it was at that moment i decided i should should take up knitting instead
Nick, i dont think so, she just noticed it0, what got me was changing the bulb made no fifference....until you turned the lights off and on again.
Ian, i told her to get a relay from fleabay, her reply was "oh yes, my mechanic did mention that"....women eh ?.
The bulb problem makes it seem the car has Canbus ? I no longer have access to Autodata but that would probably have a wiring diagram , the fan could be ECU controlled via the coolant temperature sensor ?
Rusty, thats one of the reasons i gave up the trade, far too complicated to sort even simple problems, after a bit of digging elsewhere as well, it seems this relay is a common problem so going for that, only £18, i have told her, if this dont work, she will have to find a specialist, i feel sorry for her cos she is skint and has been ripped off in the past by garages.
I shall be giving up the trade at the end of the month after 51 years in the workshop , vehicle electrics have changed drastically in the last 10 years as have virtually all mechanicals . Don't think I'm going to miss it somehow!
On a chevrolet Spark we had a small water leak at the pump intake, this caused loss of coolant which in turn left water temperature bulb to lose
contact with water, this lead to overheating.
Eventually we located the leak, changed water pump, hoses and thermostat.
Car has been ok since that with no issues....
If she replenished coolant with plain water, check the thermostat as it may be clogged by corrosion caused by water only.
HTH.
for thos that helped with this pile of poo, she rocked up today with the relay thingy, i struggled underneath to fit it and it is still the same,
deeply joyfullthat at least i had tried, she is now of to the pug garage to hand over her life,s savings.
so thats new stat, thermoswitch and relay thingy, checked fuses, all ok, kettle on and forget it ever happened.
Fans are also known for seizing up on these but don't be astonished if the ECU has internal corrosion and corrosion on the coolant temperature
sensor wiring.
I have seen a couple of older Pugs go to the crusher because of it.
fan spins,sensor is new as it is part of the stat, one strange thing is, it was boiling up in the expansion bottle and my digital temp gauge was
reading 80 degrees C on the top hose, 70 on the bottom, maybe water pimp ?, anyhow, i have decided i hate cars, especially French ones 
quote:
Originally posted by theconrodkid
fan spins,sensor is new as it is part of the stat, one strange thing is, it was boiling up in the expansion bottle and my digital temp gauge was reading 80 degrees C on the top hose, 70 on the bottom, maybe water pimp ?, anyhow, i have decided i hate cars, especially French ones
no other sign of head gasket failure, no bubbles coming up before it boils up so i doubt it, i just find it strange that my pretty acurate temp meter is showing it to be below 100 c when it boils over.
quote:
Originally posted by theconrodkid
no other sign of head gasket failure, no bubbles coming up before it boils up so i doubt it, i just find it strange that my pretty acurate temp meter is showing it to be below 100 c when it boils over.
yup, i am thinking water pimp, nothing about it being a common fault of the forums tho, she is taking it back to her regular man who hopeflly will
sort it out, we buy any goat .com valued it at £200 so it has to be kept going