dan_uk_1984 wrote:

JustinP wrote:

Hi Dan,

What symptoms indicate it's the auxiliary coolant pump?

Cheers

Justin

"Reduced Engine Performance" message on a SC RR is 99% caused by this.

A large proportion of 2005-2007 SC RR's had the electric coolant pump wired the wrong way round, being a centrifugal pump it doesn't do it any favours running back-wards so leads to early failure.

You can test your aux coolant pump by activating the "Rest Heating" function - Outside temp less than 15C, after turning off and taking key out of ign press "max ac", make sure after a few minutes the air coming out the vents is hot. If it's cool/cold then the pump doesn't work/is wired incorrectly.

The fix is to correct the wiring (if your car is affected) and replace the pump if wired back-wards (even if it still works, it wont last much longer)

Dan

a friend of mine in Marseille with an SC got the same problem . they changed ther pump , and the message came back again after few days v.


In his case there was also sometthing wrong with a fuse which iwas sitauted in the Fuse Box in the TRUNK , yes on the SC they haver added fuses and some are in a fuse box in the trunk §§§§

took the staeler 3 returns of the car before they finally found .

so when you get your SC back , you may want to check in this fuse box in the trunk ....

more explanations on RRnet range rover MKIII forum ;

Cheers Jaybear

2002 V8 , premier edition , 19" alloys ,

, really?

Just checked the info in the WSM as well as on Microcat. Hopefully mechanic can get the part in time for todays delivery. What a PITA.

For reference the part number for the Supercharger Aux Coolant Pump is PEB500010

D 

dan_uk_1984 wrote:

, really?

Just checked the info in the WSM as well as on Microcat. Hopefully mechanic can get the part in time for todays delivery. What a PITA.

For reference the part number for the Supercharger Aux Coolant Pump is PEB500010

D

I'll check the fuse myself tonight. £120 sounds about right.

£30 for labour. 

Probably abit late as it took me a while to find em but I've scanned the info i got from topix when i was doing mine. Couldn't download the pdf's so had to print em hence the poor quality scans. Maybe this can help other SC owners in the future

Hers the link:

http://dl.dropbox.com/u/13079626/FFRRSC_auxcoolentpump.pdf

also the connector only fits the pump one way as a little plastic stopper stops it from being turned 180. I didnt fancy taking the wires out and swapping them so i shaved the little plastic stopper and spun the connector 180 and it fitted perfectly into the new pump

cheers Ex FFRR 4.2 Supercharged

www.thecarpetfitter.co.uk

It's definately the pump that's broken - even with 12v applied to it, it doesnt move.

As I advised my mechanic of the wrong part # I will have to wait till tomorrow for my car to be back :'(

Here is the TSB, which I will include in the WiKi when I get round to it  

Last edited by dan_uk_1984 on 18th Aug 2011 3:32pm. Edited 1 time in total

At least you have fully diagnosed it now, was it wired incorrectly or has it just worn out? 
Gone - Range Rover Supercharged 2006

JustinP wrote:

At least you have fully diagnosed it now, was it wired incorrectly or has it just worn out?

Not sure yet, will check that ASAP tomorrow. 

Glad you getting it fixed.

Just bought two A1 2006 Superchargers (Grey/Jet/Piano & Black/Jet/Piano) and cannot wait to pick them up for a thrash back home. Tootle back home to any potential buyers

Sorted.

Part cost about £120 inc VAT and my local indy charged £30 to swap over. He really is a top guy and knows his stuff.

I you are in the Wiltshire area and need any mechanical work doing he's your man.

Anyway, I videoed taking the old pump apart. Not much to it, but if you want to see what's inside the Auxiliary Coolant Pump here you go: Please excuse my poor narrative. I'm still rather tired from my 3AM M4 excursion!