Coolant leak

steady eddie · 17th February 2018, 12:20

Hi' just been looking for a coolant leak on the wife's tourer cdti there is water coming down the rear of the engine and dripping off the sump it looks as though there could be various small leaks around the water pump/thermostat area the thermostat failed a few years ago ( I did the renault stat mod then ) but now there is leakage in the water pump area is it worth trying to sort this or should I just go for a water pump/thermostat kit from DMGRS ?
Many thanks Ed.

maxxtro · 17th February 2018, 20:18

sounds like water pump leaking best to replace it and thermostat

genpk · 18th February 2018, 07:26

Could be the thermostat leaking where the metal pipe goes into the housing.
There is a o ring which causes issues in the pipe.

Sector-9 · 20th February 2018, 19:32

If you're not sure if it'd had a thermostat housing or water pump replaced in the last few years, and you're planning on keeping the car for more than say a year, then bite the bullet and replace both. They then shouldn't need doing again in the remainder of the car's lifetime.

Word of warning though; access to both is incredibly awkward and you'll need to remove the RH engine mount and jack the engine up and down several times to get to all the bolts. Allow a full day for this if you've not done it before as even the pros with all the tools and a proper 2 post lift quote around 4 hours!

Mike Noc · 21st February 2018, 00:41

My original water pump failed at just shy of 300k miles, but the replacement only lasted another 60k, so I wouldn't change it unless it is either leaking or has covered a high mileage.

Easier and quicker just to do the thermostat and O ring for the pipe going into iti they are leaking.

17th February 2018, 12:20	#1
steady eddie Loves to post rover 75 tourer / bmw e90 320d Join Date: Jul 2011 Location: Swindon Posts: 255 Thanks: 256 Thanked 48 Times in 24 Posts	Coolant leak Hi' just been looking for a coolant leak on the wife's tourer cdti there is water coming down the rear of the engine and dripping off the sump it looks as though there could be various small leaks around the water pump/thermostat area the thermostat failed a few years ago ( I did the renault stat mod then ) but now there is leakage in the water pump area is it worth trying to sort this or should I just go for a water pump/thermostat kit from DMGRS ? Many thanks Ed.

20th February 2018, 19:32	#4
Sector-9 Gets stuck in Rover 75 CDT manual Tourer Join Date: Aug 2014 Location: nr. Mansfield Posts: 767 Thanks: 24 Thanked 182 Times in 137 Posts	If you're not sure if it'd had a thermostat housing or water pump replaced in the last few years, and you're planning on keeping the car for more than say a year, then bite the bullet and replace both. They then shouldn't need doing again in the remainder of the car's lifetime. Word of warning though; access to both is incredibly awkward and you'll need to remove the RH engine mount and jack the engine up and down several times to get to all the bolts. Allow a full day for this if you've not done it before as even the pros with all the tools and a proper 2 post lift quote around 4 hours! __________________ Free fault codes scan/clear (TOAF) - M1 J27 area

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17th February 2018, 20:18	#2
maxxtro Newbie mgzt Join Date: Jun 2017 Location: Chorley Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts	sounds like water pump leaking best to replace it and thermostat

18th February 2018, 07:26	#3
genpk Posted a thing or two Rover 75 Saloon MGZT Join Date: Jul 2012 Location: Perth, AUSTRALIA Posts: 1,662 Thanks: 3 Thanked 461 Times in 299 Posts	Could be the thermostat leaking where the metal pipe goes into the housing. There is a o ring which causes issues in the pipe.

21st February 2018, 00:41	#5
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	My original water pump failed at just shy of 300k miles, but the replacement only lasted another 60k, so I wouldn't change it unless it is either leaking or has covered a high mileage. Easier and quicker just to do the thermostat and O ring for the pipe going into iti they are leaking.