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| D2 - Axles, Brakes, Suspension and Steering Brakes, Springs, shocks, steering racks, steering columns, suspension arms, wheel hubs etc. |
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#1
3rd November 2014, 08:25 PM
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Noisy power steering pump
I noticed this with my old 1998 3.7 which I didn;t have very long, annoying whine from the PAS pump - most noticeable between 1-2k rpm but just lived with it.
My new to me 2000 3.7 quattro made the same noise but even louder when I bought it. So system flushed, strainer cleaned and correct fluid made no difference at all. Fitted a used pump as I was getting some other parts, maybe a slight improvement but still there and still annoying!  I know part of the problem is that the rest of the car is sooo quiet that any noises are not drowned out but this can't be right. Anyone had this? 
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#2
3rd November 2014, 10:08 PM
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Are you sure it's power steering pump noise and not aircon compressor noise? Try turning off the aircon or putting it into economy and see if the noise lessens or goes
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Confidence is the feeling you have before you know better . . . .  Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange 2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee 20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble  Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble Audi A8L D2 4.2 Petrol with LPG - Ebony Black Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior and some other A8's A8L's and Mercs
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#3
3rd November 2014, 10:12 PM
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Or the auxiliary coolant pump, a well-known source of noise. Had to disconnect that on both my D2's.
To check if it's that turn the ignition off and press the "Rest" button which turns the pump on (and the ventilation fans, but you can slow those).
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions and extended leather. Ski hatch retrofit. Aftermarket reversing camera. DVB-T and XCarlink now removed as redundant. 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". (Even rarer than a D2 S8!) 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. Agate Grey/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. Added Auto-dim mirror, Leather seats, 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; 3rd November 2014 at 10:15 PM.
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#5
23rd November 2014, 01:56 PM
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Well I sent my original pump to a specialist for testing, they called me and confirmed it had a whine. I gave them the go ahead for a rebuild and asked them to test it afterwards. It's back on now and whining away just as before. Really at a loss with this one now, it really spoils the driving experience.
I am going to run it with some clear hose on the return pipe to see if there is any air getting in there...
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