|
|
#1
10th November 2013, 08:22 AM
|
|||
|
|||
Hydraulic Noise
Whilst stationary, engine running and foot on brake, does anyone else experience the sound of fluid being pumped around the gearbox? It differs slightly between gears selected but it's always there.
Just wondering if some hydraulic noise is normal?
__________________
Currently driving - '99 Silver A8 D2 FL 4.2 QS Currently for work - '08 Raven Blue T5 174 
|
|
#2
10th November 2013, 08:37 AM
|
|||
|
|||
|
Are you sure it's the gearbox, not the cooling system and especially the auxiliary coolant pump? (easily disconnected to test - or press Rest with the engine off)
If gearbox, could be low fluid.
__________________
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; 10th November 2013 at 08:43 AM.
|
|
#3
12th November 2013, 08:43 PM
|
|||
|
|||
|
It is definitely the 'box as the noise becomes slightly more prominent when shifting through certain gears. Maybe I'm making it sound worse than it is, it's only slightly audible. I can only describe it as hydraulic noise.
I take it by your response that your 'box is silent?
__________________
Currently driving - '99 Silver A8 D2 FL 4.2 QS Currently for work - '08 Raven Blue T5 174
|
|
#4
13th November 2013, 06:59 AM
|
||||
|
||||
|
Mine's silent. Get the fluid levels checked PDQ.
__________________
2002 Final Edition S8. Ebony black with Silver Grey leather and myrtle wood trim. Current mods: solar sun roof, 20mm rear spacers, 15 mm on front, red brembo callipers, 6k headlights, rear view camera, engine remap, alloy dash dial rings, alloy navi rings, tt/phaeton pedal upgrade, (and custom matching foot rest) dension ipod interface & parrot hands free kit (both fully hidden), av input, tv in motion switched thro' PF switch in blanking plug right of steering column, Audi 'quattro' sill covers, repositioned centre console switches, radio clock, .Planned mods: auto-dimming rear view mirror, dash cam (as steamship's), fit the ski hatch, refit philips drl's (or maybe not - nope, definitely not - horrible botch!).
|
|
#5
13th November 2013, 11:46 AM
|
||||
|
||||
|
Quote:
As The Laird says, no gearbox fluid sounds should be heard - given you're getting gremlins post a DIY ATF change, I'd get it checked by a specialist to avoid any damage. The last thing you want is to drive it around knowing it isn't sounding/performing as it should. Oli
__________________
 CURRENT: 2006 Audi A8 D3 4.2 Tdi QS - CLICK HERE FOR PROJECT THREAD: Audi Exclusive Azure Blue, Amaretto brown interior, facelift rear lights, S8 mirrors, B&O, ACC, Digital TV, glass sunroof, Fridge, Extended Leather Pack 2, wooden steering wheel & gearknob, keyless entry, keyless start, electric boot, softclose doors SOLD : 2000 FL Silver D2 4.2 QS - Solar sunroof, Bose, Blinds, NavPlus, Playstation, DVD, wireless headphones, iPhone AV connection, RS6 steering wheel, chrome mirrors, phone prep, xenons, servotronic steering, Rear screen, TV-in-motion, NavPlus Alu rings, S8 exhaust, S8 bonnet grille, 385mm D3 S8 brakes, rubber winter mats, De-badged rear, US rear indicator clusters, 20" Final Edition diamond cut wheels, 15mm Eibach Pro spacers (front), 20mm H&R hubcentric spacers (rear). Audi A8/S8 D2 Flickr Group
|
|
#6
15th November 2013, 07:04 PM
|
|||
|
|||
|
Quote:
It only makes the noise when the box is up to operating temperature and not when cold. I'll probably take it to a transmission specialist to see if they can diagnose the problem. It may be to do with the valve body and if so will be fixable without removing the transmission itself. On the flip side it may go on like this for 1000's of miles. Would be nice to get a positive diagnosis though. To be honest I like the fact that the car is an on-going project. Working on it is the only way you can really get to know it. Next things to do are change the torque support mount, sort the headlamp washer system and fit an exhaust system. I'm especially looking forward to the last one!
__________________
Currently driving - '99 Silver A8 D2 FL 4.2 QS Currently for work - '08 Raven Blue T5 174
|
|
#7
30th November 2013, 03:49 PM
|
|||
|
|||
|
Mine made a 'fluid' noise after having a gearbox service at Audi Glasgow.
They'd under filled it by a gallon. Search for a thread called 'funny noise' if you like for the full story....
|
|
#8
12th December 2013, 08:58 PM
|
|||
|
|||
|
Mental! I can't believe that Audi can make such fundamental errors. I have however got to the bottom of the issue. It certainly took me a while to work it out. I shall post my findings in a new thread.
__________________
Currently driving - '99 Silver A8 D2 FL 4.2 QS Currently for work - '08 Raven Blue T5 174
|
|
#9
16th December 2013, 01:47 PM
|
||||
|
||||
|
Quote:
__________________
2002 Final Edition S8. Ebony black with Silver Grey leather and myrtle wood trim. Current mods: solar sun roof, 20mm rear spacers, 15 mm on front, red brembo callipers, 6k headlights, rear view camera, engine remap, alloy dash dial rings, alloy navi rings, tt/phaeton pedal upgrade, (and custom matching foot rest) dension ipod interface & parrot hands free kit (both fully hidden), av input, tv in motion switched thro' PF switch in blanking plug right of steering column, Audi 'quattro' sill covers, repositioned centre console switches, radio clock, .Planned mods: auto-dimming rear view mirror, dash cam (as steamship's), fit the ski hatch, refit philips drl's (or maybe not - nope, definitely not - horrible botch!).
|
|
#10
16th December 2013, 03:27 PM
|
|||
|
|||
|
__________________
Currently driving - '99 Silver A8 D2 FL 4.2 QS Currently for work - '08 Raven Blue T5 174
|
 |
|
|
Linear Mode
