heater

jimmyjoe · 16th December 2007, 19:00

my 1999 75 diesel heater is playing up, passenger side cold with temp set the same as drivers side, but drivers side ok

Mike · 16th December 2007, 19:07

Have a read here about the heater matrix - it is the most likely culprit.

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

jimmyjoe · 16th December 2007, 19:08

Quote:

Originally Posted by jimmyjoe

my 1999 75 diesel heater is playing up, passenger side cold with temp set the same as drivers side, but drivers side ok

my 75 diesel heater is playing up, passenger cold, drivers side warm,both set at same temp

JohnDotCom · 16th December 2007, 23:20

See Mike's link above Jimmyjoe it should help you.

nfarmer · 18th December 2007, 22:29

Would this apply to SE Club V6 2L with climate control please

steve00117 · 19th December 2007, 09:46

Quote:

Originally Posted by nfarmer

Would this apply to SE Club V6 2L with climate control please

In short.. yes.

Jules · 19th December 2007, 10:41

Presumably the KV6 matrix could be blocked from previous head gasket troubles.........can't imagine this to be the same scenario with jimmyjoes's CDT heater as the water system in the M47 engine usually stays spotless throughout its life.

Another possibility is to check the motorized valves that operate the air blending flaps. They can all be heard whirring away when the ignition is turned off.(not sure how many motors there are in total)

Good luck

nfarmer · 19th December 2007, 10:45

Have run A/C diags with no error messages, would they identify issues with blending valves

Mike · 19th December 2007, 11:02

Quote:

Originally Posted by nfarmer

Have run A/C diags with no error messages, would they identify issues with blending valves

iirc it won't. I'll dig out the list of what the error codes refer to and post it later.

Quote:

Originally Posted by julesbass

Presumably the KV6 matrix could be blocked from previous head gasket troubles.........can't imagine this to be the same scenario with jimmyjoes's CDT heater as the water system in the M47 engine usually stays spotless throughout its life.

Jules,

As far as I remember the problem comes from the system design and isn't caused by head gasket issues, which in any case are not common on the KV6 (and before anyone pops in to challenge, I do know they have happened

)

16th December 2007, 19:00	#1
jimmyjoe Newbie rover 75 saloon Join Date: Dec 2007 Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts	heater my 1999 75 diesel heater is playing up, passenger side cold with temp set the same as drivers side, but drivers side ok Last edited by jimmyjoe; 16th December 2007 at 19:03..

16th December 2007, 19:07	#2
Mike This is my second home Rover 75 V8 Join Date: Oct 2006 Posts: 3,448 Thanks: 0 Thanked 206 Times in 32 Posts	Have a read here about the heater matrix - it is the most likely culprit. http://www.the75andztclub.co.uk/foru...ead.php?t=7515 __________________ Mike [SIGPIC][/SIGPIC]

19th December 2007, 10:41	#7
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	Presumably the KV6 matrix could be blocked from previous head gasket troubles.........can't imagine this to be the same scenario with jimmyjoes's CDT heater as the water system in the M47 engine usually stays spotless throughout its life. Another possibility is to check the motorized valves that operate the air blending flaps. They can all be heard whirring away when the ignition is turned off.(not sure how many motors there are in total) Good luck __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block

16th December 2007, 23:20	#4
JohnDotCom * Rover 75 FaceLift Tourer CDTi 170BHP Auto ConnSE 2005 Model Starlight Silver Join Date: Nov 2006 Location: Abergele Posts: 28,735 Thanks: 0 Thanked 6 Times in 5 Posts	See Mike's link above Jimmyjoe it should help you.

18th December 2007, 22:29	#5
nfarmer Newbie 75 Tourer Club SE V6 2l Join Date: Sep 2007 Location: Worcester Posts: 28 Thanks: 0 Thanked 0 Times in 0 Posts	Would this apply to SE Club V6 2L with climate control please

19th December 2007, 10:45	#8
nfarmer Newbie 75 Tourer Club SE V6 2l Join Date: Sep 2007 Location: Worcester Posts: 28 Thanks: 0 Thanked 0 Times in 0 Posts	Have run A/C diags with no error messages, would they identify issues with blending valves