#1: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Sun Oct 27, 2019 7:11 am ---- Hello, me again!
The heater controls in SWMBOs old 1.4i 2000 206 seem to work other than nothing gets hot or even warm from the vents.
A mate reckons "common fault.....a bit of plastic breaks on them" but as to what???
Any pointers?
I'm planning to do a coolant flush and new radiator shortly, maybe that'll sort it?
Cheers
#2: Re: 206 No Heat From Heater Author: Steve206, Location: UKPosted: Sun Oct 27, 2019 4:36 pm ---- Pull the heater controls off, it will be a clip on the back. As long as it manual control, not auto climate control. Does the control feel loose?
#3: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Sun Oct 27, 2019 9:38 pm ---- Thanks will try that and report back.
#4: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Mon Oct 28, 2019 8:09 am ---- Not pulled the controls out yet but SWMBO reports "the heater gets warm if the engine gets hot". What she means by that is if the wate in the expansion bottle gets low. Rad is leaking but I've got a new one. Hoping as I say a good flush might cure rather than it being something else. Water in expansion bottle is pretty "brown". Last edited by clicon357 on Tue Oct 29, 2019 5:01 am; edited 1 time in total
#5: Re: 206 No Heat From Heater Author: Steve206, Location: UKPosted: Mon Oct 28, 2019 8:17 pm ---- Ypuve lost me on your last pst, but if youve got a dodgy radiator that might be your problem!
#6: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Mon Nov 11, 2019 9:35 am ---- An update. Went to change the radiator. All looked good size wise comparing new to old. Ran a cleaner through the system before draining down. Took the old rad off and flushed out lots of old rusty crud. Went to put the new rad on and realised it needs another of the little rubber blanking caps/jubilee clips for one of the unused ports.
Put the old rad back on for now. Filled up with coolant and bled.
Running as before but still no heat from the heater.
Is it worth changing the thermostat?
As an aside as I was topping up the expansion bottle I spilt water down over the auxilliary belt and the annoying whine that's been there for years disappeared. Came back soon enough though, guess the water acted as a lubricant? Suspecting maybe the alternator tensioning pulley as if, with the engine running I squirted water at that from a plant sprayer the noise stopped.
#7: Re: 206 No Heat From Heater Author: gazza82, Location: South BucksPosted: Tue Nov 12, 2019 7:56 am ---- Air lock in the heater matrix possibly. Or it's the heater controls and it's failing to open the vents to allow the warmer air out.
What temp is the engine getting to? A 206 thermostat gets stuck open so fails to warm up as quick as it should. It should get to normal operating temps in about 2-3 miles of normal driving (5-6 mins?). It is taking longer then you might need a new one of those too.
And yes, if you spray water on the tensioner and it stops the noise, you need a new tensioner.
#8: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Tue Nov 12, 2019 11:05 am ----
gazza82 wrote:
Air lock in the heater matrix possibly. Or it's the heater controls and it's failing to open the vents to allow the warmer air out.
What temp is the engine getting to? A 206 thermostat gets stuck open so fails to warm up as quick as it should. It should get to normal operating temps in about 2-3 miles of normal driving (5-6 mins?). It is taking longer then you might need a new one of those too.
And yes, if you spray water on the tensioner and it stops the noise, you need a new tensioner.
Thanks. Went out with an infra red laser thermometer. Ran the engine for 15 minutes, revved it a bit to get the temperature up. It wasn't that cold to start with:
Temperature gauge sitting at 90degC - halfway
Where the thermostat fits to the block, block side at about 90-95degC. Rubber top hose immediately after the stat 70degC. Top hose where it enters the rad 65degC.
Bottom hose cold by comparison, 30degC
Rad itself cold all over to the touch
Hoses on the bulkhead to the heater. Top one with the bleed screw 30degC. Bottom one 50degC.
Put heater on inside car, lukewarm.
Just to note it didn't feel tbh like there was water in the top hose to the radiator. Easy to squeeze and not "firm".
Could this be a thermostat issue?
Just got a new one to fit and it says 89degC on it.
Cheers
#9: Re: 206 No Heat From Heater Author: gazza82, Location: South BucksPosted: Wed Nov 13, 2019 8:02 am ---- Could be a stuck thermostat but it also sounds like it's got air in the system if top hose is soft ..
#10: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Wed Dec 04, 2019 8:47 pm ---- Update. Changed the radiator (leaking) and thermostat (all red rust). Got up to temp and stat opened with a "whump" taking all the water from the expansion bottle. I rapidly topped up of course. Top hose on rad getting nice and hot. Fan coming in as it should.
I assume the stat stuck closed was why I only managed to drain 3L of coolant off originally when the book says 6?
I bled the top hose to the matrix and water coming out nice and hot but still no heat in the cabin. Matrix change next!
#11: Re: 206 No Heat From Heater Author: Steve206, Location: UKPosted: Wed Dec 04, 2019 8:48 pm ---- I always take the thermostat out when draining coolant on a system. Good to see your getting somewhere though
#12: Re: 206 No Heat From Heater Author: gazza82, Location: South BucksPosted: Thu Dec 05, 2019 10:12 am ----
clicon357 wrote:
I assume the stat stuck closed was why I only managed to drain 3L of coolant off originally when the book says 6?
You can only get it all out but turning the block upside down!
clicon357 wrote:
I bled the top hose to the matrix and water coming out nice and hot but still no heat in the cabin. Matrix change next!
Did you have the heater controls on hot when you refilled/bled it? If not it may still be air-locked.
#13: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Thu Dec 05, 2019 11:15 am ----
gazza82 wrote:
clicon357 wrote:
I assume the stat stuck closed was why I only managed to drain 3L of coolant off originally when the book says 6?
You can only get it all out but turning the block upside down!
clicon357 wrote:
I bled the top hose to the matrix and water coming out nice and hot but still no heat in the cabin. Matrix change next!
Did you have the heater controls on hot when you refilled/bled it? If not it may still be air-locked.
I had the heater set to hot and running on the highest setting as I was bleeding at the top matrix hose. To no avail unfortunately!
#14: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Tue Dec 10, 2019 10:39 pm ---- Update...
Car overheated on the school run. Top hose came away from the new thermostat housing I fitted last weekend. Not seen it (the old stat) yet or spoken to him but think the housing on the stat I fitted, split.
I was at work but BiL kindly replaced the thermostat and housing and topped up. His first guess was head gasket but now thinking water pump.
The water in the expansion bottle btw is clean as in not oily as far as I can tell.
Any suggestions?
Cheers
#15: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Thu Dec 19, 2019 6:31 am ---- Timing belt and tensioner done.
Water pump done, old steel impeller had disintegrated, new impeller is alloy. This can't have helped!
#16: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Sat Dec 28, 2019 4:22 pm ---- That's the second thermostat housing that's sheared off. Issue appears to be the head gasket.
#17: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Sun Jun 14, 2020 5:29 pm ---- I've renewed:
Radiator
Heater matrix
Thermostat
Timing belt
Water pump
Head gasket and bolts
Expansion bottle cap
I'm still losing a little coolant that comes out of the expsnsion bottle cap.
Yesterday after driving a few miles and stopping at a petrol station to fill up coolant was literally pi$$ing out.
Got home and after letting it cool found the expansion tank nearly empty.
My current thinking is either the fan isn't kicking in or I should have skimmed the head when I had it off.
#18: Re: 206 No Heat From Heater Author: MrBSI, Location: What's it to you? ? ?Posted: Sun Jun 14, 2020 7:20 pm ---- Head really should have been skimmed / checked while it was off.
I'd carry out a cooling system pressure test.
Either the new head gasket is leaking or the head could even be cracked.
#19: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Sun Jun 14, 2020 8:44 pm ----
MrBSI wrote:
Head really should have been skimmed / checked while it was off.
I'd carry out a cooling system pressure test.
Either the new head gasket is leaking or the head could even be cracked.
Thanks. I was looking at the cheap kits on eBay. Are they any good?
#20: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Tue Jun 16, 2020 4:23 am ---- Can anyone assist please as to what the two plugs are here:
The green one to the back with the red and yellow wire (I think its the coolant temperature sensor).
The brown one in the foreground with the yellow and white wires goes into the housing where the thermostat is. Tbh I sort of expected the green one to be here.
If, with the engine running I pull off the brown plug the fan kicks in. Think I might stop pulling plugs off whilst it's running. Read that it can brick the ECU if done too many times?
I think my fan operation is intermittent. Going to have a look at the relays behind the front grill I've read about that go crusty and play up.
Thanks
#21: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Tue Jun 16, 2020 4:36 pm ---- Corroded relays behind the front grill. Top relay had a fractured coil coil contact. I'll get new ones tomorrow. The "female" connectors are recoverable with some contact cleaner then silicone grease.
#22: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Wed Jun 17, 2020 2:39 pm ---- So I need to replace these two fan radiator relays. Great idea to put them behind the front grill where they did.
Originals (green) are 5-pin, 35A, spdt.
I have a couple of new (black), 5-pin, 40A, spdt.
Old one has a 390ohm resistor across the coil. Total resistance measured across the coil is 67ohms.
On the new relay there's no resistor apparent. Resistance across the coil is 87ohms.
I need to replace the two fan radiator relays on the wife's old Pug 206. Great idea to put them behind the front grill!
Originals (green) are 5-pin, 35A, spdt.
New (black) are 5-pin, 40A, spdt.
Old one has a 390ohm resistor across the coil. Total resistance measured across the coil is 67ohms.
On the new relay there's no resistor apparent. Resistance across the coil is 87ohms.
What do you reckon, OK as a swap?
Cheers
What do you reckon, OK as a swap?
Cheers
#23: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Tue Jun 30, 2020 4:38 am ---- Morning, after a long winded fight with the cooling system I'm down to needing a new cap for the expansion bottle. The two aftermarket ones apparently correct, let by. Part number on the back of the original is PA 66 GF 35. Can't seem to find it anywhere! Main dealer maybe?
#24: Re: 206 No Heat From Heater Author: MrBSI, Location: What's it to you? ? ?Posted: Tue Jun 30, 2020 12:57 pm ---- Cap should be cheap new from main dealer.
#25: Re: 206 No Heat From Heater Author: ekjdm14, Location: CheshirePosted: Tue Jun 30, 2020 1:44 pm ---- Would suggest going genuine on the cap yes, the aftermarket ones vary from OK-ish to crap right from the get go. Had one that was even slightly too big on the thread ID and wouldn't tighten fully.
#26: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Thu Jul 30, 2020 2:48 pm ---- After a long fight, culminating in fitting new OEM fan relays and a new OEM expansion bottle cap and everything's good on the cooling front (touch wood).
I even gave it a final run through with rad cleaner followed by flushing then fresh coolant.
The only bug is the coolant still looks rusty. (Not oily in any way). Don't get me wrong it there was a LOT of rust in there so I guess it's still coming loose of the inside of the pipes etc. Be nice to get it a nice see through pink!
Did wonder about periodically sucking what I can get to from the expansion bottle and pouring through filter paper?
#27: Re: 206 No Heat From Heater Author: gazza82, Location: South BucksPosted: Thu Jul 30, 2020 2:53 pm ---- Mine goes that colour as soon as I add new coolant. And as I replaced both core plugs in the cylinder head most of the coolant is new .. but you never quite get it all out so it turns orange soon after.
#28: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Thu Jul 30, 2020 7:07 pm ---- In my 1998 Focus with a 2.0 black top Zetec the coolant is a lovely pale magenta colour. Just saying.
#29: Re: 206 No Heat From Heater Author: MrBSI, Location: What's it to you? ? ?Posted: Mon Aug 03, 2020 8:56 am ---- Non bio clothes washing powder / liquid mixed with plain water ran through the cooling system will clean it out very nicely.
Run it up to temperature until the thermostat opens so the whole cooling system gets cleaned.
Drain & refill with 2nd application for really dirty cooling systems.
Drain & refill with correct type coolant for the engine & if possible distilled or deionised water in the correct ratio.
#30: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Mon Aug 03, 2020 7:03 pm ----
MrBSI wrote:
Non bio clothes washing powder / liquid mixed with plain water ran through the cooling system will clean it out very nicely.
Run it up to temperature until the thermostat opens so the whole cooling system gets cleaned.
Drain & refill with 2nd application for really dirty cooling systems.
Drain & refill with correct type coolant for the engine & if possible distilled or deionised water in the correct ratio.
It won't damage the aluminium bits?
#31: Re: 206 No Heat From Heater Author: MrBSI, Location: What's it to you? ? ?Posted: Tue Aug 04, 2020 7:21 am ---- Its an old engineers trick - must be NON bio.
I used it on my old TU3 powered 206 to clean out the mucky cooling system - also smelled very nice during the flushing session.
#32: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Tue Aug 04, 2020 8:07 am ----
MrBSI wrote:
Its an old engineers trick - must be NON bio.
I used it on my old TU3 powered 206 to clean out the mucky cooling system - also smelled very nice during the flushing session.
So how do you do it as in ratio wise, powder to water?
Cheers
#33: Re: 206 No Heat From Heater Author: MrBSI, Location: What's it to you? ? ?Posted: Tue Aug 04, 2020 8:55 am ---- A scoop or capful in the expansion bottle is enough.
Drain the system first, fill with plain water just below the minimum level on the expansion bottle then add the washing detergent - top the level up to max mark then refit the cap & run the system up to temperature - remember to set the heater to hot.
#34: Re: 206 No Heat From Heater Author: ekjdm14, Location: CheshirePosted: Wed Aug 05, 2020 11:21 am ----
MrBSI wrote:
remember to set the heater to hot.
Shouldn't make a difference on PSA cars as they don't use the silly clog/leak prone heater valve & control the heat by a flap in the heater box.
#35: Re: 206 No Heat From Heater Author: clicon357, Location: KentPosted: Wed Aug 05, 2020 4:58 pm ----
MrBSI wrote:
A scoop or capful in the expansion bottle is enough.
Drain the system first, fill with plain water just below the minimum level on the expansion bottle then add the washing detergent - top the level up to max mark then refit the cap & run the system up to temperature - remember to set the heater to hot.
Thanks. After draining and filling with plain water do I bleed the system? This so the cooling system is full whilst it's cleaning with no airlocks. I've bled up until now via the top hose going to the heater matrix. I put a rubber glove on (saves scalded fingers) then as soon as the air stops coming out quickly screw the little cap on.
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