can anybody answer this question

andrewscruff · 4th October 2015, 12:32

i had a new heater matrix fitted on may the 8th i took the car back to the garage last thursday as i was getting cold air from the passenger side they have bleed and cleaned the whole system and it is still the same. also the thermostat was replaced they are saying the heater matrix must be faulty or does anyone think there could be another problem the car is a rover75 auto v6 many thanks

pm77 · 4th October 2015, 12:34

Was it a new matrix or reconditioned?

Probably either haven't bled the system correctly or the matrix is blocked. Or your heater flaps aren't working correctly. Try the AC unit diagnostic mode to see if any errors come up.

andrewscruff · 4th October 2015, 12:40

brand new matrix and work was done at a rover garage

pm77 · 4th October 2015, 12:52

http://www.the75andztclub.co.uk/foru...ad.php?t=20537 explains how to test the climate control. If you haven't already done that.

klarzy · 4th October 2015, 13:02

Could be a divert flap on the air flow.

Avulon · 4th October 2015, 15:37

Still, it's most likely that they haven't successfully bled all the air out of the system. (IMHO).

Second possibility is that they've left something disconnected on the flap solenoids, the ATC diagnostic already linked to will tell you if there's a solenoid problem.

Dragrad · 5th October 2015, 00:30

Thread moved to a more appropriate forum. Re-direct left in old. This may be the better forum as things get 'buried' very quickly in the General Forum.

RogerHeinz57 · 5th October 2015, 00:39

Had experience of this before on a 75 2.5 V6 (2003)
The garage had indeed replaced the matrix. Unfortunately the matrix was similar in many respects, but not the same as it was thinner, the matrix was not fitting into the pocket area snugly and only supplying warmth (Tepid) air to the one side. With a good cleaned out used matrix fitted and cooling system bled properly, it worked properly!
The matrix had a weedy little core, the pipework looked quite gash and had external reinforcements tacked to the sides as a support frame. Total rubbish.

You may have a similar type fitted on yours.
I have a set of flap solinoids here if you want to try some different ones.

Cheers JohnH, The Cardinal H57.

Dragrad · 5th October 2015, 00:43

If you still have the original heater matrix, this How To maybe of some help....

http://www.the75andztclub.co.uk/foru...ead.php?t=7515

FLYING BANANA · 5th October 2015, 07:33

Banana had this problem when I first bought her, but MJS put a water cleaner through and reversed the water flow with garden hose connected. Flushed the system through. At some in it's life, before me, K seal had been added and this was thought to be the problem. Never had any problems since.

4th October 2015, 12:32	#1
andrewscruff Avid contributor rover 75 Join Date: Dec 2013 Location: bishops stortford Posts: 194 Thanks: 71 Thanked 10 Times in 9 Posts	can anybody answer this question i had a new heater matrix fitted on may the 8th i took the car back to the garage last thursday as i was getting cold air from the passenger side they have bleed and cleaned the whole system and it is still the same. also the thermostat was replaced they are saying the heater matrix must be faulty or does anyone think there could be another problem the car is a rover75 auto v6 many thanks

4th October 2015, 12:34	#2
pm77 Gets stuck in Volvo XC70 D5 AWD Auto Join Date: Apr 2012 Location: Darlington Posts: 926 Thanks: 5 Thanked 133 Times in 121 Posts	Was it a new matrix or reconditioned? Probably either haven't bled the system correctly or the matrix is blocked. Or your heater flaps aren't working correctly. Try the AC unit diagnostic mode to see if any errors come up. __________________ No Longer an owner.. but still trying to help

4th October 2015, 12:40	#3
andrewscruff Avid contributor rover 75 Join Date: Dec 2013 Location: bishops stortford Posts: 194 Thanks: 71 Thanked 10 Times in 9 Posts	heater matrix brand new matrix and work was done at a rover garage

4th October 2015, 12:52	#4
pm77 Gets stuck in Volvo XC70 D5 AWD Auto Join Date: Apr 2012 Location: Darlington Posts: 926 Thanks: 5 Thanked 133 Times in 121 Posts	http://www.the75andztclub.co.uk/foru...ad.php?t=20537 explains how to test the climate control. If you haven't already done that. __________________ No Longer an owner.. but still trying to help

4th October 2015, 13:02	#5
klarzy This is my second home none but not gone Join Date: Mar 2013 Location: March, Cambs Posts: 16,437 Thanks: 894 Thanked 4,247 Times in 3,025 Posts	Could be a divert flap on the air flow. __________________ [SIGPIC][/SIGPIC]….All praise Bananaswan….

4th October 2015, 15:37	#6
Avulon This is my second home 1.8t Tourer Join Date: Oct 2011 Location: Tanelorn Posts: 4,830 Thanks: 956 Thanked 1,148 Times in 916 Posts	Still, it's most likely that they haven't successfully bled all the air out of the system. (IMHO). Second possibility is that they've left something disconnected on the flap solenoids, the ATC diagnostic already linked to will tell you if there's a solenoid problem. __________________ Need a T4 ?: T4 Owners Map thanks to Stevestrat ( use at your own risk) Where?: https://en.wikipedia.org/wiki/Tanelorn Mods/Retrofits: PCV vortex 'filter'; bluetooth; inline thermostat; reversing sensors; plenum spyhole ; headlamp washers ; Diy mp3 player replacing CD multichanger; FBH with remote; Headlamp washers; black/chrome front grille, rear blind; Xenon projectors To do: puddle lights; 2 Din cd/nav to fit; boot release button

5th October 2015, 00:30	#7
Dragrad This is my second home *None DROWNED** Join Date: Aug 2007 Location: Cardigan Posts: 33,339 Thanks: 1,257 Thanked 1,664 Times in 1,081 Posts	Thread moved to a more appropriate forum. Re-direct left in old. This may be the better forum as things get 'buried' very quickly in the General Forum. __________________ Andrew Ich Dien Problem solving is... lateral thinking SEARCH FIRST ...ASK LATER...

5th October 2015, 00:39	#8
RogerHeinz57 I really should get out more....... A Reasonably Priced Car Join Date: Jan 2014 Location: Burton Latimer Posts: 2,530 Thanks: 408 Thanked 1,064 Times in 712 Posts	Had experience of this before on a 75 2.5 V6 (2003) The garage had indeed replaced the matrix. Unfortunately the matrix was similar in many respects, but not the same as it was thinner, the matrix was not fitting into the pocket area snugly and only supplying warmth (Tepid) air to the one side. With a good cleaned out used matrix fitted and cooling system bled properly, it worked properly! The matrix had a weedy little core, the pipework looked quite gash and had external reinforcements tacked to the sides as a support frame. Total rubbish. You may have a similar type fitted on yours. I have a set of flap solinoids here if you want to try some different ones. Cheers JohnH, The Cardinal H57.

5th October 2015, 00:43	#9
Dragrad This is my second home *None DROWNED** Join Date: Aug 2007 Location: Cardigan Posts: 33,339 Thanks: 1,257 Thanked 1,664 Times in 1,081 Posts	If you still have the original heater matrix, this How To maybe of some help.... http://www.the75andztclub.co.uk/foru...ead.php?t=7515 __________________ Andrew Ich Dien Problem solving is... lateral thinking SEARCH FIRST ...ASK LATER...

5th October 2015, 07:33	#10
FLYING BANANA Moderator/Club Shop MG ZT 1.8t+. No.3 of 4 in Sunspot Yellow & Ford Fiesta in Black. Join Date: Aug 2010 Location: Rattler Farm Posts: 22,603 Thanks: 9,270 Thanked 15,645 Times in 6,806 Posts	Banana had this problem when I first bought her, but MJS put a water cleaner through and reversed the water flow with garden hose connected. Flushed the system through. At some in it's life, before me, K seal had been added and this was thought to be the problem. Never had any problems since. __________________ 233,625. onen hag oll