Audi 80 coupe heater matrix

stephen2320 · 29-01-10, 10:27 PM

HELLO EVERYONE. I HAVE A 2.3 5 CYLINDER AUDI COUPE 1992 RHD STANDARD NON AIR CON... I HAVE A FEELING I NEED A NEW HEATER MATRIX, I HAVE NO HOT AIR AT ALL ALTHOUGH THERE ARE NO TELL TALE SIGNS OF THIS, THE INSIDE OF CAR IS DRY (WHAT I CAN TELL) NO LOSS OF FLUIDS IN THE ENGINE BAY, NO STEAM COMING FROM VENTS ETC THE ONLY THING WRONG IS ONCE THE CAR IS WARMED UP THE HOT AIR STILL COMES OUT COLD, IF I SWITCH ALL VENTS OFF FOR 30 MINS ISH AND THEN TURN IT ON I GET ABOUT 5 SECONDS OF HEAT THEN IT GOES COLD AGAIN. IN THE HAYNES MANUAL IT SAYS I CAN GET AWAY WITH JUST REMOVING THE CD, DIALS AND VENTS SECTION OF THE DASH YET ON MANY FORUMS THE WHOLE DASH NEEDS REMOVING. ANY HELP ON THIS WILL BE APPRECIATED BUT MAINLY I'D LIKE TO KNOW WHETHER OR NOT IT IS MY HEATER MATRIX THAT HAS GONE. THANKS EVERYONE

mikes2 · 29-01-10, 10:31 PM

heater matrix means a dash out job

Nigel Conniford · 29-01-10, 10:34 PM

I would say no, if the matrix has gone I would say you would be leaking inside the cabin with still some heat, i reckon your heater control might be up the shoot, so when you try and turn from cold to hot it just stays on cold, maybe the cable's broken ??

stephen2320 · 29-01-10, 10:57 PM

cheers, when u say the controls how can that be rectified i've read on a couple of forums to check for blockages, air blocks, incorrect coolant? what do you reckon?

cheers.

stephen2320 · 29-01-10, 10:59 PM

forgot to mention, when turning from cold to hot i do get a short blast of hot air then it goes cold again...

missfire · 30-01-10, 12:17 AM

http://www.classic-audi.co.uk/forum/...ead.php?t=8444

dont know if this is any use.......?????

amanda · 30-01-10, 12:41 AM

Thermostat?

Martc · 30-01-10, 01:33 AM

Quote:

Originally Posted by stephen2320

forgot to mention, when turning from cold to hot i do get a short blast of hot air then it goes cold again...

As Nige says if it was a matrix, you would probably be able to find a leak, the car would probably steam up a little and you might be able to detect an odd sweet smell.

What is the temparature gauge doing on the car, if its acting normal then its not likely to be a blockage or the thermostat.

Sounds like it points to heater controls.....

type81 · 30-01-10, 07:42 AM

feel the radiator hoses when the engine is warm, are they cold or hot?

stephen2320 · 30-01-10, 01:13 PM

the hoses get red hot and the engine warms up as normal. the water pump, therostat etc was changed not too long ago? no leaks but also no hot air, will next dismantle the heating controls and check those cables... if i have an air block/gap how do irradicate this? cheers

29-01-10, 10:31 PM	#2
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	heater matrix means a dash out job __________________ 1991 90 quattro 20v sport 1991 90 quattro

29-01-10, 10:34 PM	#3
Nigel Conniford Chief Sausage Meister!! Classic Audi Club Member Join Date: Jul 2007 Posts: 3,614	I would say no, if the matrix has gone I would say you would be leaking inside the cabin with still some heat, i reckon your heater control might be up the shoot, so when you try and turn from cold to hot it just stays on cold, maybe the cable's broken ?? __________________ Horsepower is the force that determines at what speed you hit the wall, Torque is the force that determines how far you take the wall with you after you hit it.

30-01-10, 12:41 AM	#7
amanda quattro hussie!! Classic Audi Club Member Join Date: Jul 2007 Location: doin' it on all fours!! Posts: 5,993	Thermostat? __________________ Mystic blue m3 ghay hairdresser mobile 4 sheds 1 shopping trolley Gti RS6 ...my baby

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Audi 80 heater hose	Incredibelly	Parts Wanted	5	06-12-09 01:40 PM
Would someone help me fit a new heater matrix??	SteveCat	General Chat	8	23-10-09 12:45 PM
Dot matrix thingy in the dash.. (b4 coupe)	Johnny_E	Electrical problems	0	30-03-09 12:47 PM
heater matrix	ferris360	Engine	6	24-02-09 09:22 PM
Replacing a heater matrix on a B4	Audiden	Engine	8	22-09-08 10:15 PM

29-01-10, 10:57 PM	#4
stephen2320 Grown up member Join Date: Jun 2009 Location: Prestatyn, North Wales. Posts: 45	cheers, when u say the controls how can that be rectified i've read on a couple of forums to check for blockages, air blocks, incorrect coolant? what do you reckon? cheers.

29-01-10, 10:59 PM	#5
stephen2320 Grown up member Join Date: Jun 2009 Location: Prestatyn, North Wales. Posts: 45	forgot to mention, when turning from cold to hot i do get a short blast of hot air then it goes cold again...

30-01-10, 12:17 AM	#6
missfire making wooden things Classic Audi Club Member Join Date: Dec 2009 Location: cow land Posts: 8,154	http://www.classic-audi.co.uk/forum/...ead.php?t=8444 dont know if this is any use.......?????

30-01-10, 07:42 AM	#9
type81 Senior Member Classic Audi Club Member Join Date: Nov 2009 Location: manchester Posts: 1,691	feel the radiator hoses when the engine is warm, are they cold or hot?

30-01-10, 01:13 PM	#10
stephen2320 Grown up member Join Date: Jun 2009 Location: Prestatyn, North Wales. Posts: 45	the hoses get red hot and the engine warms up as normal. the water pump, therostat etc was changed not too long ago? no leaks but also no hot air, will next dismantle the heating controls and check those cables... if i have an air block/gap how do irradicate this? cheers