Help and advice on my low temp guage

apywell · 10th November 2007, 22:07

Hi there

This afternoon driving back down the M18 I noticed that the temp guage was showing about 2mm 'under' the quater mark.

It doesn't usually go this low, and this was during a 60 mile drive at a steady 70mph. At steady motorway driving, the needle normally sits just above the quater mark until I hit any city traffic, then it will sit bang on half way. This seems to happen summer and winter and has always been the same while I've had the car. If I'm driving in city traffic it usually settles about 2mm above the quater mark.

I have been reading the threads for temp guage but none seem to have the same problem as me.

It would apear this isn't normal. I would appreciate any advice here for a list I can work through to try and get to the bottom of this problem, or should I not worry about it?.....

apywell · 11th November 2007, 17:29

What do other Diesel owners think? Does your Diesel 75 hover between the quater mark and half way, or always goes straight to the half way mark without problems.

I understand Diesels seem to run cooler.... Would it cause long term damage if I left everything alone??

what do people think?

Raistlin · 11th November 2007, 17:52

I don't think I've ever seen the temp gauge anywhere other than spot on half way with either of my 75 diesels.

That includes in moderate town traffic on a Summer's day.

MikeHurley · 11th November 2007, 18:09

Hi, sounds rather similar to what I was experiencing over the summer, although I have a 2.5l petrol........after a misdiagnosis by a garage it turned out to be a cracked thermostat housing, correctly diagnosed and repaired by Lates600.com.
My comments for what its worth !

10th November 2007, 22:07	#1
apywell Gets stuck in Rover 75 Saloon. 2.0 Diesel Auto. Connoisseur SE. Join Date: Nov 2006 Location: Derby Posts: 723 Thanks: 0 Thanked 0 Times in 0 Posts	Help and advice on my low temp guage Hi there This afternoon driving back down the M18 I noticed that the temp guage was showing about 2mm 'under' the quater mark. It doesn't usually go this low, and this was during a 60 mile drive at a steady 70mph. At steady motorway driving, the needle normally sits just above the quater mark until I hit any city traffic, then it will sit bang on half way. This seems to happen summer and winter and has always been the same while I've had the car. If I'm driving in city traffic it usually settles about 2mm above the quater mark. I have been reading the threads for temp guage but none seem to have the same problem as me. It would apear this isn't normal. I would appreciate any advice here for a list I can work through to try and get to the bottom of this problem, or should I not worry about it?..... __________________ If there's one thing I've learned, it's that life is one crushing defeat after another until you just wish Flanders was dead. Now has an S-Type 2.7 diesel V6 twin turbo with Jag voice, bluetooth, sat nav, front and rear park assist, electric fold mirrors etc, etc, etc.....

11th November 2007, 17:29	#2
apywell Gets stuck in Rover 75 Saloon. 2.0 Diesel Auto. Connoisseur SE. Join Date: Nov 2006 Location: Derby Posts: 723 Thanks: 0 Thanked 0 Times in 0 Posts	What do other Diesel owners think? Does your Diesel 75 hover between the quater mark and half way, or always goes straight to the half way mark without problems. I understand Diesels seem to run cooler.... Would it cause long term damage if I left everything alone?? what do people think? __________________ If there's one thing I've learned, it's that life is one crushing defeat after another until you just wish Flanders was dead. Now has an S-Type 2.7 diesel V6 twin turbo with Jag voice, bluetooth, sat nav, front and rear park assist, electric fold mirrors etc, etc, etc.....

11th November 2007, 17:52	#3
Raistlin Banned 75 CDT Connoisseur SE Auto Join Date: Nov 2006 Location: Wolverhampton Posts: 8,450 Thanks: 0 Thanked 3 Times in 3 Posts	I don't think I've ever seen the temp gauge anywhere other than spot on half way with either of my 75 diesels. That includes in moderate town traffic on a Summer's day.

11th November 2007, 18:09	#4
MikeHurley Gets stuck in Rover 75 Saloon 2.5 V6 Join Date: Sep 2007 Location: London Posts: 659 Thanks: 129 Thanked 26 Times in 24 Posts	Hi, sounds rather similar to what I was experiencing over the summer, although I have a 2.5l petrol........after a misdiagnosis by a garage it turned out to be a cracked thermostat housing, correctly diagnosed and repaired by Lates600.com. My comments for what its worth !