Just disconnecting the power to the motor fixes the noise, with minimal side effects. 
My problem is that I can't find the lead; it was trivially easy on my PF S8. 
(there are two leads to the unit, it's the one with the dark connector that powers the pump motor, I think the lighter/beige one is for the valves - I've found that easily)
This is what Ian said about replacing the motor:
Quote:
Originally Posted by IT
Its just the bearings on the motor. We've known people just unplug the motor to stop the noise (quite easy to reach the cables from the engine bay side) and the only thing that seems affected is the resting heater.... The pump runs continously, but the heating doesnt seem harmed by not having it running.
The motor is screwed on using two screws from memory, but these cant be accessed from the engine bay as the blower assembly is in the way.
By removing the glovebox, and then pulling back the carpet and acoustic foam insulation, you reveal the large square plastic cover which is held on by 4 hex nuts. Remove these nuts, remove that cover, and then my memory goes a little hazy, but remove what ever is under there to get reasonable access to the pump. undo the screws, remove it, stick another one in.  |
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.).
2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation".  (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one! 
Finally: gone, but not forgotten.....
1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors.
e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later)
1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer.
And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
Last edited by HPsauce; 25th November 2013 at 10:07 PM.
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