A8 Parts Forum  

Go Back   A8 Parts Forum > A8 D2 > D2 - Axles, Brakes, Suspension and Steering

D2 - Axles, Brakes, Suspension and Steering Brakes, Springs, shocks, steering racks, steering columns, suspension arms, wheel hubs etc.

Reply
 
Thread Tools Display Modes
  #1  
Old 11th December 2017, 09:18 PM
RICKY D's Avatar
RICKY D RICKY D is offline
Senior Member
 
Join Date: May 2014
Location: Croydon/South London
Posts: 777
Default Front wheels “hopping” in full lock

Evening all, yesterday I ventured in to town and whilst ascending a multi storey carpark I noticed that the front wheels were “hopping” or jolting whilst taking tight turns on full lock, almost as if I was driving on cobbled roads.....very horrible sensation because it feels like the front wheel us about to fall off.

I thought it was due to the steep, tight turns and the odd angles, but using the car again this morning on level ground I could feel the sensation again.

All suspension arms have been replaced within 3k mikes. Could this be wheel bearings? They’re not groaning or grumbling though
__________________
2002 S8 - Irish Green Pearl. Cat N (saved by the D2 Doctor )

1988 E30 Coupe - Royalblau Metallic

2003 S4 Avant - Light Silver Mettalic

2016 S5 Coupe Black Edition - Ibis White

Reply With Quote
  #2  
Old 11th December 2017, 09:22 PM
HPsauce HPsauce is offline
Senior Member
 
Join Date: Sep 2011
Location: Chilterns, almost over HS2!
Posts: 8,366
Default

I've noticed that occasionally over the years, just assumed it was pushing the geometry beyond it's smooth operating limits on uneven surfaces.
__________________
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!
Reply With Quote
  #3  
Old 11th December 2017, 10:03 PM
RICKY D's Avatar
RICKY D RICKY D is offline
Senior Member
 
Join Date: May 2014
Location: Croydon/South London
Posts: 777
Default

Maybe it’s an Irish Green Pearl/ beige thing?

Surely it’s not normal though? My tracking is also good, so it’s not that.

I wonder if the wider than normal wheel/tyre combo is causing this? Went from 8x18 to 9x20.
__________________
2002 S8 - Irish Green Pearl. Cat N (saved by the D2 Doctor )

1988 E30 Coupe - Royalblau Metallic

2003 S4 Avant - Light Silver Mettalic

2016 S5 Coupe Black Edition - Ibis White

Reply With Quote
  #4  
Old 11th December 2017, 10:20 PM
HPsauce HPsauce is offline
Senior Member
 
Join Date: Sep 2011
Location: Chilterns, almost over HS2!
Posts: 8,366
Default

Happens less on the 18's and more on the 20's.
__________________
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!
Reply With Quote
  #5  
Old 11th December 2017, 11:09 PM
briang9's Avatar
briang9 briang9 is offline
Senior Member
 
Join Date: Jan 2011
Location: Scotland
Posts: 2,817
Default

mine always does this when on full lock on tightish turns
__________________



Audi S8 2002, Black (even the chrome bits)
Audi RS6 Avant 2008, Daytona Grey
Maserati Granturismo 2008, Metallic Nero Carbonio
Audi S8 2015, Daytona Grey
Reply With Quote
  #6  
Old 12th December 2017, 06:41 AM
Simonbartlett Simonbartlett is offline
Senior Member
 
Join Date: Jan 2017
Posts: 202
Default

I would image its the diff locking and both wheels turning at the same speed. Obviously the diff should allow the outside wheel to turn faster and stop the hopping.
__________________
Owner of a 2008 A8 3.0tdi SE
Reply With Quote
  #7  
Old 12th December 2017, 08:16 AM
RICKY D's Avatar
RICKY D RICKY D is offline
Senior Member
 
Join Date: May 2014
Location: Croydon/South London
Posts: 777
Default

I did think could it be the diff. Would cold weather have an impact on operation?
__________________
2002 S8 - Irish Green Pearl. Cat N (saved by the D2 Doctor )

1988 E30 Coupe - Royalblau Metallic

2003 S4 Avant - Light Silver Mettalic

2016 S5 Coupe Black Edition - Ibis White

Reply With Quote
  #8  
Old 12th December 2017, 03:05 PM
karlcossy karlcossy is offline
Member
 
Join Date: Apr 2017
Posts: 64
Default

mine does the same really annoying and no idea why
but yet again something else that needs sorting
Reply With Quote
  #9  
Old 12th December 2017, 05:01 PM
Dezzy's Avatar
Dezzy Dezzy is offline
Senior Member
 
Join Date: Sep 2009
Location: N. Devon
Posts: 2,715
Default

It's deffo a 4x4 thing. Not sure if its the front diff not letting the outside wheel to spin fast enough or the centre diff not allowing enough slip between axles.
Series Land Rover's are really bad for it in low box. Coming out of a field onto tarmac still in low range and they'll almost bounce on full lock. Ok in the mud as the wheels can all slip to suit.
__________________
1996 A8 4.2 QS. Bose, Solar roof, um...um... rally sport towbar. Now gone to a new home as the Traders 8.

Bright yellow bus o love.

Last edited by Dezzy; 12th December 2017 at 05:04 PM.
Reply With Quote
  #10  
Old 12th December 2017, 05:53 PM
Architex_mA8tey's Avatar
Architex_mA8tey Architex_mA8tey is offline
Moderator
 
Join Date: Jan 2009
Location: London/Oxford/Swindon
Posts: 7,648
Default

I don't think that the "grippy" surface they put on some car park ramps helps either
__________________

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
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 10:32 AM.


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