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dan_uk_1984



Member Since: 12 Nov 2008
Location: Bude, Cornwall
Posts: 3758
United Kingdom 
Electric / Auxiliary Coolant Pump Dead

My Aux Coolant Pump seems to have died - I am getting 12V supply to it, but no resistance on the motor terminals.

Probably going to be a replacement jobby needed, bit irritating as this now means the heater is a bit naff at low revs and "Rest Heating" doesn't work Sad Thankfully the FBH has its own circulation pump so that still works or I would probably kill myself.

Anyone know if a BMW unit will work? 
Post #42793 19th Dec 2010 6:33pm
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SteveMFr
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Member Since: 22 Nov 2009
Location: Strasbourg, France
Posts: 987
Re: Electric / Auxiliary Coolant Pump Dead

dan_uk_1984 wrote:
or I would probably kill myself.

Shocked


Actually, I'm sure there's a BMW pump that will work. Just finding it... Try from an E53. 
RRC 2Dr, RRC 4Dr,
P38, and LM
(wife thinks I'm nuts - prob right, too)
Post #42798 19th Dec 2010 7:55pm
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dan_uk_1984



Member Since: 12 Nov 2008
Location: Bude, Cornwall
Posts: 3758
United Kingdom 
Re: Electric / Auxiliary Coolant Pump Dead

SteveMFr wrote:
dan_uk_1984 wrote:
or I would probably kill myself.

Shocked


Just finding it...


Agreed - none on the bay. I've found a BMW unit for £63, but the LR one is about £75 so may not be worth the hassle.

Dan 
Post #42805 19th Dec 2010 8:21pm
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dan_uk_1984



Member Since: 12 Nov 2008
Location: Bude, Cornwall
Posts: 3758
United Kingdom 

Just to close this one off, my mechanic replaced the pump for me.

Parts and labour came to £90, so not too bad.

Upon further investigation this pump failing is a leading cause of HG failure on older BMW's as there is very little flow in the cooling system at idle and this pump really is needed to avoid hot spots in the heads.

Another thing that can fail are the coolant cross over valves that direct coolant to either the heater, engine or both.

Part Number was JJK000010
Internet price seems to be around £95 inc VAT + Delivery 
Post #56605 25th Mar 2011 11:14am
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jonminns



Member Since: 07 Mar 2011
Location: Staffordshire, UK
Posts: 125
United Kingdom 2003 Range Rover 4.4 V8 Vogue Auto Java Black

Do you know what the procedure is for checking the crossover valves?

I can't find much mention of that side of the cooling system in the shop manual FFRR 4.4 V8 Vogue LPG MY03 Black/Sand
Post #66944 4th Jun 2011 2:03pm
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stan



Member Since: 13 Jul 2010
Location: a moderate moderated moderator moderating moderately in moderation
Posts: 8140
England 2005 Range Rover Td6 HSE Auto Cairns Blue

please dont kill your self DAN, an aux coolant pump really isn't worth that.. Wink
Post #66948 4th Jun 2011 3:44pm
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