Advice please re 2.0 V6 Thermostat

mike26950 · 25th March 2009, 17:32

Having made the decision to keep my 75 for ever Ive recently been doing some serious maintenance, including new Fan from Rimmers etc. I consider myself to be very fortunate in living with about 20 mins drive from Rimmers, and during a recent visit I bought a new thermostat complete with all the bits. However after taking a very close look my current thermostat shows no signs of any problems, but as far as I know has been on the car since new(1999, 89,000 miles). Should I replace it anyway as a precaution, or follow the golden rule "if it aint broke dont fix it"? Any advice would be appreciated.

stocktake · 25th March 2009, 17:46

If it shows no sign of leaking, and reaches temp in around five mins I would not change it.

Run the OBD to check temp. Should be up to temp ( @95 deg) as said within 5 mins an fan should kick in at 100 deg.

My opinion only obviously

kaiser · 25th March 2009, 18:08

I would not go to the trouble of changing a functioning thermostat (and the associated pipes), unless you have to go in there in any case. Based on the age of your car, the belts could well be due for a change, in which case the thermostat and the water pump as well as the belt tensioner should be replaced, without hesitation!.
However the plastic will fail sooner or later, and you must just bear that in mind. As long as you keep a close eye on the water level, you usually get a small leak developing over time, and should get enough warning, if you are alert.

25th March 2009, 17:32	#1
mike26950 Newbie Rover 75 Conn SE Dorchester Red / Aubergine Join Date: Oct 2007 Location: Ruskington Lincolnshire Posts: 23 Thanks: 0 Thanked 0 Times in 0 Posts	Advice please re 2.0 V6 Thermostat Having made the decision to keep my 75 for ever Ive recently been doing some serious maintenance, including new Fan from Rimmers etc. I consider myself to be very fortunate in living with about 20 mins drive from Rimmers, and during a recent visit I bought a new thermostat complete with all the bits. However after taking a very close look my current thermostat shows no signs of any problems, but as far as I know has been on the car since new(1999, 89,000 miles). Should I replace it anyway as a precaution, or follow the golden rule "if it aint broke dont fix it"? Any advice would be appreciated.

25th March 2009, 17:46	#2
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,593 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	If it shows no sign of leaking, and reaches temp in around five mins I would not change it. Run the OBD to check temp. Should be up to temp ( @95 deg) as said within 5 mins an fan should kick in at 100 deg. My opinion only obviously __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

25th March 2009, 18:08	#3
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	I would not go to the trouble of changing a functioning thermostat (and the associated pipes), unless you have to go in there in any case. Based on the age of your car, the belts could well be due for a change, in which case the thermostat and the water pump as well as the belt tensioner should be replaced, without hesitation!. However the plastic will fail sooner or later, and you must just bear that in mind. As long as you keep a close eye on the water level, you usually get a small leak developing over time, and should get enough warning, if you are alert.