A8 Parts Forum  

Go Back   A8 Parts Forum > A8 D3 > D3 - Transmission

D3 - Transmission Gearboxes, diffs, drive shafts.

Reply
 
Thread Tools Display Modes
  #1  
Old 1st September 2017, 09:33 AM
lackovicj lackovicj is offline
Member
 
Join Date: Aug 2017
Location: London, SE, Lewisham
Posts: 98
Default rusted noise

Hi

When I floor the pedal I can hear rusted noise(like screwing rusted nut) for 1/2 second.

Anybody have an idea what could be?

A8 d3 2003 3.7 petrol


Thank you
Attached Thumbnails
Click image for larger version

Name:	IMG_1451.jpg
Views:	465
Size:	530.7 KB
ID:	16929  
Reply With Quote
  #2  
Old 1st September 2017, 10:18 AM
Conquistador's Avatar
Conquistador Conquistador is offline
Senior Member
 
Join Date: Nov 2012
Location: Essex
Posts: 1,415
Default

Check the kickdown switch behind the pedal? Might be loose or broken.
__________________
Currently '8-less
Previously:
- Aqua Blue Pearl D3 S8 - Kamut Beige leather, ACC, B&O, factory RSE, solar sunroof, electric blinds, ski bag, Homelink, comfort headrests.
- Aqua Blue D2 S8 - Grey leather/Alcantara
- D3 A8 3.0 CVT
- D3 3.7 V8
Reply With Quote
  #3  
Old 1st September 2017, 10:36 AM
lackovicj lackovicj is offline
Member
 
Join Date: Aug 2017
Location: London, SE, Lewisham
Posts: 98
Default

HI

Thanks for a reply I will check the kickdown switch.
It sounds more like from underneath of the car,,,between the engine bay and transmission. Is very hard identify where is coming from or just record the noise.
Noise in a level of : rpms between of critical and over-critical rpms, kind of resonating or as i said screwing rusted nut on the screw.

It does not happen when pressing the pedal slowly,,only while flooring the pedal firmly.

Thank you
Reply With Quote
  #4  
Old 1st September 2017, 10:46 AM
Architex_mA8tey's Avatar
Architex_mA8tey Architex_mA8tey is offline
Moderator
 
Join Date: Jan 2009
Location: London/Oxford/Swindon
Posts: 7,648
Default

Quote:
Originally Posted by lackovicj View Post
HI

Thanks for a reply I will check the kickdown switch.
It sounds more like from underneath of the car,,,between the engine bay and transmission. Is very hard identify where is coming from or just record the noise.
Noise in a level of : rpms between of critical and over-critical rpms, kind of resonating or as i said screwing rusted nut on the screw.

It does not happen when pressing the pedal slowly,,only while flooring the pedal firmly.

Thank you
Possibly propshaft CV joint when put under the strain of a kickdown?
__________________

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
Reply With Quote
  #5  
Old 26th September 2017, 11:57 AM
lackovicj lackovicj is offline
Member
 
Join Date: Aug 2017
Location: London, SE, Lewisham
Posts: 98
Default

Kick down switch operating as normal.
not sure about the CV joint as the noise appear even when cruising on 50mph and then just floor the pedal..1/2 second of noise and thats all.
I might not be correctlty describing the noise i getting.
If someone lives around SE/Lewisham I can pop in and floor the pedal for you.
__________________
Audi A8 D3 2003 3.7 V8 petrol, Oyster gray with black interior
19" alloy, Sport suspension transmission and seats, HID headlights, Phone in armrest, 4zone AC, Sat-Nav, TV, Dimmable exterior mirrors, VCDS

Previous : Chevrolet Blazer 2001 LT 4.3 petrol
Reply With Quote
  #6  
Old 26th September 2017, 01:11 PM
IT's Avatar
IT IT is offline
Administrator
 
Join Date: Jan 2009
Location: Harrogate, North Yorkshire
Posts: 6,222
Default

Very long shot, but can it be low on gearbox fluid ?

If so, it can cavitate under acceleration and the bubbles in the oil make a brief whistling sound.

It would be more prominent when cold, and would happen at idle revving in park as well as when driving....
__________________
For parts enquiries and Forum User Administration please contact customer services directly, not me - enquiry@a8parts.co.uk, www.a8parts.co.uk, or call 01642 783537

The Daily Town Car - 2023 Tesla Model Y Performance. Black with Black. Giant ipad screen, huge sunroof, 4 wheel drive, Tow bar, lots of ooomph and made in China, so actually built properly unlike the Californian ones.

The Family Wagon - 2018 Tesla Model X. Black, 7 Seats, Towbar, Homelink, Enhanced Auto pilot with Summon and self park, Heated front seats, CCS Charger upgrade, MCU2 Upgrade, Falconwing Doors, Self opening / closing doors, Netflix, Spotify, toys, Air suspension, alcantara roof + lots of other stuff......

The 17 year old Driver Wagon 2015 Skoda Citigo Monte Carlo. Alloys, Power steering, Aircon, Leccy windows, Sat Nav, bluetooth, central locking, cup holders, 59 whole bhp. Million times better than my first car. Well jealous.....

The First 20 Audis:

2001 D2 4.2 QS Silver, 1997 D2 S8 Silver, 1999 D2 4.2 Silver, 2002 D2 S8 Dolphin Grey,
2003 C5 RS6 Blue, 1998 D2 S8 Black, 2000 D2 4.2 QS/S8 Ming Blue, 2003 D3 4.2 Ming Blue,
2005 B7 S4 Blue, 2006 D3 3.0 Tdi Black, 1999 D2 4.2 Silver, 2003 D3 4.2 LPG Crystal Blue,
2000 D2 S8 Silver, 2007 3.0 Tdi Q7 Black, 2009 B8 S4 Black, 1998 D2 S8 Agate Grey,
2006 D3 4.2 Tdi Blue, 2006 D3 S8, 2007 Q7 3.0 Tdi, 2006 C6 S6,

The Second 20 Audis:

2011 A7 Sline, 2001 A2 1.4 Tdi Black, 2002 A2 1.4 Tdi Silver, 2006 A8 4.2 Tdi Blue,
2007 4.2 Tdi Q7, 2006 S4 Cab Silver, 2010 RS6 Saloon Black , 2007 TT Roadster,
2010 A8 D4 4.2 Silver, 2006 C6 A6 2.7 Tdi Quattro, 2000 D2 4.2 QS/S8 Ming Blue (again), 2008 Q7 4.2 Black,
2009 C6 RS6 Saloon Daytona Grey, 2001 Fully Loaded A2 Tdi, 2006 Avant S6 Black, 2007 VW Caravelle Exec Black (almost an Audi)
2009 TT Roadster Daytona, 2015 Q7 4.2 tdi lava grey, 2002 GmbH D2 demonstrator, 2006 D3 A8 LWB 4.2 Tdi Black

Most Recent Audis:

2001 A2 1.4 Tdi Black, 2007 4.2 FSi Q7 ABT Blue, 2016 S5 Coupe Launch model, 2004 S4 B6 Cabriolet, 2016 Q7 Sline White, 2006 Q7 4.2 FSi Black, 2012 Q7 Sline+ 4.2Tdi White, 2008 Blue Audi S8

Everything Else

1989 Subaru Justy, 1986 Vauxhall Cartlton 2.0 GL, 1985 Vauxhall Carlton 2.2 CDi, 1987 Ford Sierra XR4x4, 1983 Vauxhall Senator, 1985 Vauxhall Senator 3.0i, 1997 Polo Saloon, 1997 Peugeot 306 1.9 TDi, Ford Sierra Sapphire 2000E, 1990 Subaru Justy, 2000 Subaru Impreza, 2000 Subaru Impreza RB5, 1993 Range Rover LSE, 2005 VW Bora, 2003 Skoda Superb, 2003 VW Passat V6 4 Motion, 1996 Peugeot 106, 2000 Range Rover 4.0, 2019 Tesla Model 3 Performance
Reply With Quote
  #7  
Old 26th September 2017, 01:46 PM
lackovicj lackovicj is offline
Member
 
Join Date: Aug 2017
Location: London, SE, Lewisham
Posts: 98
Default

Quote:
Originally Posted by IT View Post
Very long shot, but can it be low on gearbox fluid ?

If so, it can cavitate under acceleration and the bubbles in the oil make a brief whistling sound.

It would be more prominent when cold, and would happen at idle revving in park as well as when driving....

I thought about the gearbox oil but wanted to clarify frist before stealer takes £230 for gearbox oil + filter.
It makes the noise whether is cold or hot but only when you floor it at any speed..1/2sec of wriiim or sort of
I never floored the pedal while in idle but did rev it up to 4k but no noise.
is barelly noticeble and passanger dont notice the noise..only when I ask did you hear it?? what?? that wriim..nooo I did not...once I floor it 2x they say oh yes..
__________________
Audi A8 D3 2003 3.7 V8 petrol, Oyster gray with black interior
19" alloy, Sport suspension transmission and seats, HID headlights, Phone in armrest, 4zone AC, Sat-Nav, TV, Dimmable exterior mirrors, VCDS

Previous : Chevrolet Blazer 2001 LT 4.3 petrol
Reply With Quote
  #8  
Old 26th September 2017, 01:51 PM
IT's Avatar
IT IT is offline
Administrator
 
Join Date: Jan 2009
Location: Harrogate, North Yorkshire
Posts: 6,222
Default

Hmm... maybe its not the fluid then.

But defo don't take it to a stealer, or get a full flush at this stage.

You just want the level checked and topped up if necessary which any competent gearbox specialist should do for a fraction of that cost.
__________________
For parts enquiries and Forum User Administration please contact customer services directly, not me - enquiry@a8parts.co.uk, www.a8parts.co.uk, or call 01642 783537

The Daily Town Car - 2023 Tesla Model Y Performance. Black with Black. Giant ipad screen, huge sunroof, 4 wheel drive, Tow bar, lots of ooomph and made in China, so actually built properly unlike the Californian ones.

The Family Wagon - 2018 Tesla Model X. Black, 7 Seats, Towbar, Homelink, Enhanced Auto pilot with Summon and self park, Heated front seats, CCS Charger upgrade, MCU2 Upgrade, Falconwing Doors, Self opening / closing doors, Netflix, Spotify, toys, Air suspension, alcantara roof + lots of other stuff......

The 17 year old Driver Wagon 2015 Skoda Citigo Monte Carlo. Alloys, Power steering, Aircon, Leccy windows, Sat Nav, bluetooth, central locking, cup holders, 59 whole bhp. Million times better than my first car. Well jealous.....

The First 20 Audis:

2001 D2 4.2 QS Silver, 1997 D2 S8 Silver, 1999 D2 4.2 Silver, 2002 D2 S8 Dolphin Grey,
2003 C5 RS6 Blue, 1998 D2 S8 Black, 2000 D2 4.2 QS/S8 Ming Blue, 2003 D3 4.2 Ming Blue,
2005 B7 S4 Blue, 2006 D3 3.0 Tdi Black, 1999 D2 4.2 Silver, 2003 D3 4.2 LPG Crystal Blue,
2000 D2 S8 Silver, 2007 3.0 Tdi Q7 Black, 2009 B8 S4 Black, 1998 D2 S8 Agate Grey,
2006 D3 4.2 Tdi Blue, 2006 D3 S8, 2007 Q7 3.0 Tdi, 2006 C6 S6,

The Second 20 Audis:

2011 A7 Sline, 2001 A2 1.4 Tdi Black, 2002 A2 1.4 Tdi Silver, 2006 A8 4.2 Tdi Blue,
2007 4.2 Tdi Q7, 2006 S4 Cab Silver, 2010 RS6 Saloon Black , 2007 TT Roadster,
2010 A8 D4 4.2 Silver, 2006 C6 A6 2.7 Tdi Quattro, 2000 D2 4.2 QS/S8 Ming Blue (again), 2008 Q7 4.2 Black,
2009 C6 RS6 Saloon Daytona Grey, 2001 Fully Loaded A2 Tdi, 2006 Avant S6 Black, 2007 VW Caravelle Exec Black (almost an Audi)
2009 TT Roadster Daytona, 2015 Q7 4.2 tdi lava grey, 2002 GmbH D2 demonstrator, 2006 D3 A8 LWB 4.2 Tdi Black

Most Recent Audis:

2001 A2 1.4 Tdi Black, 2007 4.2 FSi Q7 ABT Blue, 2016 S5 Coupe Launch model, 2004 S4 B6 Cabriolet, 2016 Q7 Sline White, 2006 Q7 4.2 FSi Black, 2012 Q7 Sline+ 4.2Tdi White, 2008 Blue Audi S8

Everything Else

1989 Subaru Justy, 1986 Vauxhall Cartlton 2.0 GL, 1985 Vauxhall Carlton 2.2 CDi, 1987 Ford Sierra XR4x4, 1983 Vauxhall Senator, 1985 Vauxhall Senator 3.0i, 1997 Polo Saloon, 1997 Peugeot 306 1.9 TDi, Ford Sierra Sapphire 2000E, 1990 Subaru Justy, 2000 Subaru Impreza, 2000 Subaru Impreza RB5, 1993 Range Rover LSE, 2005 VW Bora, 2003 Skoda Superb, 2003 VW Passat V6 4 Motion, 1996 Peugeot 106, 2000 Range Rover 4.0, 2019 Tesla Model 3 Performance
Reply With Quote
  #9  
Old 26th September 2017, 02:10 PM
lackovicj lackovicj is offline
Member
 
Join Date: Aug 2017
Location: London, SE, Lewisham
Posts: 98
Default

Quote:
Originally Posted by IT View Post
Hmm... maybe its not the fluid then.

But defo don't take it to a stealer, or get a full flush at this stage.

You just want the level checked and topped up if necessary which any competent gearbox specialist should do for a fraction of that cost.

I preffer to watch what is getting done on my car or even better getting it done by myself however I have a driveway only not a ramp..Sometimes mechanics taking shortcuts when is a dirty job, like a droppoing the gearbox pan cleaning, changing the filter. When I say change the filter even is no need doing they might say we did that..few months later you go under the car and you realize the pan has never been taken off
__________________
Audi A8 D3 2003 3.7 V8 petrol, Oyster gray with black interior
19" alloy, Sport suspension transmission and seats, HID headlights, Phone in armrest, 4zone AC, Sat-Nav, TV, Dimmable exterior mirrors, VCDS

Previous : Chevrolet Blazer 2001 LT 4.3 petrol
Reply With Quote
  #10  
Old 30th September 2017, 10:49 AM
erubus erubus is offline
Senior Member
 
Join Date: Mar 2017
Location: highland Perthshire
Posts: 152
Default

Could it be a noise that can be described as an owl hoot? Is the car fairly high mileage? If so is likely known issue with the gearbox which requires replacement of the oil - ie full flush and replacement with a different grade of ATF, lifegaurd8 or some such. I believe the noise is the Torque converter clutch slipping. Is it particularly prevalent going in and out of third gear?
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 05:37 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.