A8 Parts Forum  

Go Back   A8 Parts Forum > A8 D4 > D4 - Wheels and Tyres

D4 - Wheels and Tyres Refurbing, center caps, tyre brands, tyrefitters - discuss it here

Reply
 
Thread Tools Display Modes
  #1  
Old 8th November 2022, 08:09 PM
Saff Saff is offline
Senior Member
 
Join Date: Nov 2022
Location: Skelmersdale Lancashire
Posts: 104
Default 4.2 TDI D4 Tyre pressures

Hi

The 40psi recommendation on my 255/45/19 104Y Goodyears on the front of my D4 seems a bit hard when driving. Could I reduce this a bit without causing a problem. Any advice appreciated

Steve
Reply With Quote
  #2  
Old 9th November 2022, 11:18 AM
steamship's Avatar
steamship steamship is offline
Senior Member
 
Join Date: Jun 2013
Location: Londonderry, Northern Ireland
Posts: 2,931
Default

This is what I found in the owner's manual for the D4 tyre pressures. Unless the sticker in fuel filler cap (if that's where it is on the D4) is showing 40psi, they do seem quite high.
Attached Thumbnails
Click image for larger version

Name:	Audi A8 D4 Tyre Pressures.png
Views:	99
Size:	943.1 KB
ID:	28960  
__________________
2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts

My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds
Reply With Quote
  #3  
Old 9th November 2022, 02:40 PM
Saff Saff is offline
Senior Member
 
Join Date: Nov 2022
Location: Skelmersdale Lancashire
Posts: 104
Default

Thanks again Steamship.

The sticker is on the inside edge of the drivers door. It actually says 39psi front for up to 3 occupants and 33 for the rear. I have then set at that now. What I did do is change the suspension setting from Dynamic to comfort. This has made a considerable difference and is more to my taste. I'll monitor this. Thanks Steve
Reply With Quote
  #4  
Old 9th November 2022, 06:08 PM
steamship's Avatar
steamship steamship is offline
Senior Member
 
Join Date: Jun 2013
Location: Londonderry, Northern Ireland
Posts: 2,931
Default

There's several D4 owners on here, so maybe they'll provide some feedback on what they run.
__________________
2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts

My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds
Reply With Quote
  #5  
Old 9th November 2022, 08:47 PM
paulrstaylor paulrstaylor is offline
Senior Member
 
Join Date: Jul 2010
Location: Manchester
Posts: 1,317
Default

40 seems high unless fully loaded, this is the door sticker from a 2016 D4



Inside the drivers door shut, note the part code, if you don't have one won't cost much to replace ��
Attached Thumbnails
Click image for larger version

Name:	Screenshot_20221109-203929_Gallery.jpg
Views:	292
Size:	184.4 KB
ID:	28964  
Reply With Quote
  #6  
Old 9th November 2022, 08:50 PM
Saff Saff is offline
Senior Member
 
Join Date: Nov 2022
Location: Skelmersdale Lancashire
Posts: 104
Default

Thank you
Reply With Quote
  #7  
Old 9th November 2022, 08:55 PM
Saff Saff is offline
Senior Member
 
Join Date: Nov 2022
Location: Skelmersdale Lancashire
Posts: 104
Default

Would it being a 4.2 TDI make a difference? I'm pretty sure that's what my sticker says. I'll check again tomorrow when the weather is hopefully more pleasant.
Thanks again
Reply With Quote
  #8  
Old 9th November 2022, 09:16 PM
paulrstaylor paulrstaylor is offline
Senior Member
 
Join Date: Jul 2010
Location: Manchester
Posts: 1,317
Default

99.9% sure that's from a 4.2tdi!

I had a few, but not any more, that's a pic from my phone!
Reply With Quote
  #9  
Old 10th November 2022, 01:06 PM
Saff Saff is offline
Senior Member
 
Join Date: Nov 2022
Location: Skelmersdale Lancashire
Posts: 104
Default

Hi Paul

I just had a look and the sticker says 39 front and 33 rear. It may be that the Goodyears are a stiff tyre or maybe I'll just get used to it. As I said I did set the suspension to 'comfort' and it has made a considerable improvement. Maybe I'll chance a couple of psi less. I have ordered a new pressure guage so will compare readings. Thanks again
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 10:24 AM.


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