No Heating Whatsoever - Page 2

COLVERT · 21st January 2022, 21:16

Quote:

Originally Posted by RegalRover

Hi all

Whenever I use my 75, it is always freezing cold, even if I run it for 30 mins beforehand.

Does anyone know how to fix this or what I need to replace??

Thanks

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Leyton.----Quite a few questions for you to answer so that folk can help you.

SD1too · 22nd January 2022, 07:55

Quote:

Originally Posted by Savestones

This was the case for cars out of the factory?

Yes.

Quote:

Originally Posted by Savestones

I'll have to do the dial trick (where you make all dials go from 0 to 100% and back) ...

That won't tell you anything because it's the programmed electronics within the instrument pack which keeps the gauge pointer stationary at all temperatures between 75 and 115 degrees.

Simon

T-Cut · 22nd January 2022, 16:01

Here's that MGR calibration graph again (is it from RAVE or the other ones?).

You see it's horizontal between 75°C and 115°C, so not very helpful. The rationale given underneath is a bit dubious considering any slight rise above 'normal' often means the damage is already done. I believe this 'normal' range can be customised to more useful temperatures - if you know how to do it (not T4 / TOAF tho).

TC

Mike Noc · 22nd January 2022, 17:05

Our OP has a stone crusher though TC, and they don't damage easy!

COLVERT · 22nd January 2022, 17:30

C'mon Leyton. Why have you gone all quiet ??Lots of info and folk trying to help you.

Don't be shy, we don't bite.--( I see you looked in but not a word.-

)

RegalRover · 6th February 2022, 17:40

Quote:

Originally Posted by COLVERT

C'mon Leyton. Why have you gone all quiet ??Lots of info and folk trying to help you.

Don't be shy, we don't bite.--( I see you looked in but not a word.-

)

Uh oh!! Started a new thread on this! Didn’t see all these answers. But here are a few things people have asked.

19-7 came out averaging 88c
The heaters blow but it comes out with no heat at all practically freezing
Engine temperature is fine but interior is not
I have tried the different blowers but it’s not them
Have checked all fluids and they’re fine

Apologies again for not seeing all these useful things but thanks very much for the help, I need to try some more things but weather has been horrible today in Suffolk

Thank you all very much

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SD1too · 7th February 2022, 07:43

Quote:

Originally Posted by RegalRover

19-7 came out averaging 88c
The heaters blow but it comes out with no heat at all practically freezing
Engine temperature is fine but interior is not
I have tried the different blowers but it’s not them
Have checked all fluids and they’re fine

Try draining, refilling and bleeding the cooling system Leyton by following the MGR official procedure for the diesel engine. If you're not DIY minded, maybe Trikey will help you as he's not far away.

Simon

Briodyjl01 · 7th February 2022, 18:40

Trikey for some reason can’t respond to this post.

ricardo65 · 7th February 2022, 18:45

What's the point of having a open thread if People are blocked from posting on it and apparently trikeys not the only one blocked come on guys sort it out 🤔🤔

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dave lincs · 7th February 2022, 18:46

Simple way to check hot engine turn heater to full switch interior fan off run at 2000 rpm for 5 mins turn heater on if hot on left then goes cold it's the matrix as Trikey said but can easily be changed
This is only a guide to checking the heater matrix if your engine is at full working temperature there is a thread on this at the moment but I seems I can't reply to it

7th February 2022, 18:40	#18
Briodyjl01 Gets stuck in Rover 75 Tourer, Rover 75 Saloon Join Date: May 2018 Location: Castleford Posts: 974 Thanks: 237 Thanked 185 Times in 113 Posts	Trikey for some reason can’t respond to this post. __________________ Too many Rovers to count ……

7th February 2022, 18:45	#19
ricardo65 This is my second home mgzt cdti 160.mgzt 1.8t mg6 1.8t Join Date: Apr 2013 Location: keyingham East Yorkshire Posts: 3,112 Thanks: 1,151 Thanked 1,652 Times in 969 Posts	What's the point of having a open thread if People are blocked from posting on it and apparently trikeys not the only one blocked come on guys sort it out 🤔🤔 Sent from my VFD 730 using Tapatalk __________________ Project rooster http://www.the75andztclub.co.uk/foru...d.php?t=213906

7th February 2022, 18:46	#20
dave lincs Posted a thing or two Rover 75 Saloon Join Date: Mar 2014 Location: Louth Posts: 1,409 Thanks: 380 Thanked 986 Times in 476 Posts	Simple way to check hot engine turn heater to full switch interior fan off run at 2000 rpm for 5 mins turn heater on if hot on left then goes cold it's the matrix as Trikey said but can easily be changed This is only a guide to checking the heater matrix if your engine is at full working temperature there is a thread on this at the moment but I seems I can't reply to it Last edited by dave lincs; 7th February 2022 at 19:02..

22nd January 2022, 16:01	#13
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,752 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	Here's that MGR calibration graph again (is it from RAVE or the other ones?). You see it's horizontal between 75°C and 115°C, so not very helpful. The rationale given underneath is a bit dubious considering any slight rise above 'normal' often means the damage is already done. I believe this 'normal' range can be customised to more useful temperatures - if you know how to do it (not T4 / TOAF tho). TC

22nd January 2022, 17:05	#14
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,547 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Our OP has a stone crusher though TC, and they don't damage easy!

22nd January 2022, 17:30	#15
COLVERT This is my second home R75 Saloon. Join Date: Feb 2009 Location: France/or Devon. Posts: 14,003 Thanks: 3,851 Thanked 2,167 Times in 1,816 Posts	C'mon Leyton. Why have you gone all quiet ??Lots of info and folk trying to help you. Don't be shy, we don't bite.--( I see you looked in but not a word.- )