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M17tph



Member Since: 09 Apr 2017
Location: Crawley
Posts: 51
England 2006 Range Rover Vogue SE Td6 Buckingham Blue
Thermostat

Hi sorry if this has been asked before but can I use the thermostat from the 740d as a direct replacement on my 2002 FF.i would sooner use this than mod my housing.If anyone can go through fitting the 740d stat I would be very grateful
Thanks
Post #478492 15th May 2018 6:28pm
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Deltaevo



Member Since: 02 Apr 2017
Location: Ashbourne
Posts: 39
United Kingdom 2002 Range Rover HSE 4.4 V8 Alveston Red

Did mine a few days ago with the 88 degree stat, mine has a blanking plug where the sensor would go. No issues running without the sensor.
Post #478518 15th May 2018 8:47pm
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Bronjen



Member Since: 13 May 2018
Location: DE2
Posts: 44
United Kingdom 2002 Range Rover Autobiography 4.4 V8 Baltic Blue
Thermostat

Have read issues surrounding excessive heat due to 105 degree thermostat fitted to 4.4 engine, have just ordered
Thermostat Housing aluminum type of the the bay of plenty 08.10.052 11531720173 from doctor_car for £12.50 and picking up 88 degree thermostat from eurocarparts.
hope that helps
Bronjen Very Happy
Post #478553 16th May 2018 9:45am
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Deltaevo



Member Since: 02 Apr 2017
Location: Ashbourne
Posts: 39
United Kingdom 2002 Range Rover HSE 4.4 V8 Alveston Red

I bought this stat
https://www.motor-doctor.co.uk/products/70...at-coolant

No problems found with fitting it.
Post #478583 16th May 2018 4:46pm
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M17tph



Member Since: 09 Apr 2017
Location: Crawley
Posts: 51
England 2006 Range Rover Vogue SE Td6 Buckingham Blue

Thanks for the replys
Have you noticed any difference with the new stat fitted
Regards
Post #478589 16th May 2018 5:10pm
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Deltaevo



Member Since: 02 Apr 2017
Location: Ashbourne
Posts: 39
United Kingdom 2002 Range Rover HSE 4.4 V8 Alveston Red

Much quieter, and the pipes around the rad are no longer rock hard. I needed my stat changing anyway so it would be a positve thing to do in my view.
Post #478657 17th May 2018 9:56am
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p38arover



Member Since: 16 Dec 2015
Location: Western Sydney
Posts: 1516
Australia 2004 Range Rover Vogue 4.4 V8 Adriatic Blue

Re rock hard hoses, what is the pressure rating on the coolant reservoir tank, 140 or 200kPa (look at the number underneath the cap)? Ron B. VK2OTC
2004 L322 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA
Post #478662 17th May 2018 12:16pm
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Deltaevo



Member Since: 02 Apr 2017
Location: Ashbourne
Posts: 39
United Kingdom 2002 Range Rover HSE 4.4 V8 Alveston Red

Caps rated at 200.
Post #479214 23rd May 2018 6:06pm
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p38arover



Member Since: 16 Dec 2015
Location: Western Sydney
Posts: 1516
Australia 2004 Range Rover Vogue 4.4 V8 Adriatic Blue

I'd suggest changing to 140 kPa p/n PCD000070

Referring to MicroCat, it was changed to 140 quite early in L322 production.

See an earlier post of mine:

p38arover wrote:
200kPa and 140kPa, not psi. A 200 psi cap would be about 1400kPa or 14 bar (using the approximation of 1 psi = 7kPa)

Use the 140kPa cap.

Mine had a 200 but was changed to a 140. If you look at Microcat, you'll see the 200 was for early models.

PCD100200L 1 CAP, L322 RANGE ROVER to (V)1A001049
PCD000070 1 CAP, L322 RANGE ROVER from (V)1A001050




How many coolant reservoirs and radiators has your L322 gone through? Ron B. VK2OTC
2004 L322 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA
Post #479255 24th May 2018 9:50am
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Deltaevo



Member Since: 02 Apr 2017
Location: Ashbourne
Posts: 39
United Kingdom 2002 Range Rover HSE 4.4 V8 Alveston Red

None under my tenure. A year of ownership.
Post #479285 24th May 2018 3:41pm
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p38arover



Member Since: 16 Dec 2015
Location: Western Sydney
Posts: 1516
Australia 2004 Range Rover Vogue 4.4 V8 Adriatic Blue

140 kPa = 20 psi
200 kPa = 29 psi

The 140 will stress your cooling system less.

The 200 will allow a higher temp before boiling occurs. Ron B. VK2OTC
2004 L322 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA
Post #479327 25th May 2018 5:55am
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