1.8T taking ages to warm up...

TT Tim · 28th February 2018, 07:06

...I know it's cold at the moment, but my newly acquired 1.8T tourer is takes an age to warm up, with the needle only creeping to to 1/4 at best and the heaters not working to well either.

Does this indicate a stuck thermostat?

No emulsion in the oil, so I'm hoping no head gasket problems.

thanks

Tim

SD1too · 28th February 2018, 07:28

Quote:

Originally Posted by TT Tim

Does this indicate a stuck thermostat?

Most likely, yes.

Simon

Ravinder · 28th February 2018, 09:17

Sounds very much like w sticking thermostat this will also affect your MPG.

T-Cut · 28th February 2018, 09:37

Quote:

Originally Posted by TT Tim

Does this indicate a stuck thermostat?

Check if it has a PRT (Pressure Relief Thermostat).
The simplest way to know is the presence of a wide bore T-piece in the middle of the upper head-radiator hose. If so, then the stat is mounted under the radiator, meaning the front end must be lifted to access the under panel and the PRT.

Easy to replace, but a full drain down is required.
Stats don't usually stick open as such. The PRT tends to fail due to swelling of the rubber coating on the valve, which can wedge it open when it should be closed. If this is your case, then examine it carefully to see why it deteriorated. Oil contamination is typically involved.

If you don't have a PRT then it's a more complex job accessing the stat housing behind the head. Again, examine the failed stat to check for a possible cause.

TC

TT Tim · 28th February 2018, 10:49

Quote:

Originally Posted by Ravinder

Sounds very much like w sticking thermostat this will also affect your MPG.

MPG is shockingly awful, so I’m hoping that’s what it is.

Thanks

Tim

28th February 2018, 07:06	#1
TT Tim Regular poster Rover 75 Tourer Join Date: Feb 2018 Location: Brook, Ashford, Kent Posts: 61 Thanks: 18 Thanked 40 Times in 6 Posts	1.8T taking ages to warm up... ...I know it's cold at the moment, but my newly acquired 1.8T tourer is takes an age to warm up, with the needle only creeping to to 1/4 at best and the heaters not working to well either. Does this indicate a stuck thermostat? No emulsion in the oil, so I'm hoping no head gasket problems. thanks Tim

28th February 2018, 09:17	#3
Ravinder This is my second home Rover 75 saloon x2, Rover 75 Tourer x2, Rover 220 Coupe Turbo Join Date: Aug 2010 Location: Kirkcaldy, Fife Posts: 9,038 Thanks: 2,278 Thanked 2,852 Times in 1,718 Posts	Sounds very much like w sticking thermostat this will also affect your MPG. __________________ Wanted - Indian bride. Cash waiting. (All sorted - bargain) First name and forum name: Ravinder Rover 75 2.0 CDT Connoisseur SE 116 (160 remap) Royal Blue (JFM) This vehicle was the 50,481st 75 to run off the production line, out of 112,381 This vehicle was the 2,238th 75 CDT Connoisseur SE to be made out of 3,775 This vehicle was the 5,002nd 75 in Royal Blue (code: JFM) to be made out of 14,420 Royal Blue 75s