Control Arm & Axle Torque - AudiWorld Forums

Go Back   AudiWorld Forums > Audi Models > Audi A8 / S8 > A8 / S8 (D3 Platform) Discussion
Log In 

A8 / S8 (D3 Platform) Discussion Discussion forum for the D3 Audi A8 produced from 2003-2010 and Audi S8 produced from 2006-2010

Control Arm & Axle Torque

LinkBack Thread Tools Search this Thread
Old 07-24-2014, 06:15 PM   #1
Audiworld Junior Member
Crash Craddock's Avatar
Join Date: Oct 2009
Location: Little Elm, TX
Posts: 48
Default Control Arm & Axle Torque

Does anyone have the torque spec for the axle bolt and the upper control arms?
Crash Craddock is offline   Reply With Quote
Old 07-24-2014, 06:22 PM   #2
AudiWorld Super User
Mister Bally's Avatar
Join Date: Jan 2006
Location: Detroit, Michigan USA
Posts: 4,648

The axle bolt is a one time use stretch bolt with a specific installation procedure. See the Bently or Elsa manual.

Last edited by Mister Bally; 07-24-2014 at 06:24 PM.
Mister Bally is offline   Reply With Quote
Old 07-24-2014, 08:34 PM   #3
AudiWorld Super User
mishar's Avatar
Join Date: Nov 2010
Location: Vancouver, Canada
Posts: 6,539

Control arm: 50 Nm + 90 turn

Drive axle: 200 Nm + 180 turn
mishar is offline   Reply With Quote
Old 07-25-2014, 09:58 AM   #4
Senior Member
MP4.2+6.0's Avatar
Join Date: Oct 2001
Location: SF Bay Area, CA
Posts: 9,388
Default You have the right technical answers already. But, be prepared...

1. On control arms, lots of posts now w/ issues with that bolt. Read if you aren't familiar w/ it.

2. Mishar states the correct torque and process. But in the real world, that is probably 500 foot pounds or so at final torque with the 180 degree turn. As in, you either need a torque multiplier tool or a five foot or more lever arm. Probably the highest torque item on modern Audi's. Also be prepared for a good chance you will snap some part of a socket drive (breaker bar joint, extension, etc.) if you use half inch drive tools, and that you may not be able to break it even with a decent sized impact gun.
Current #1: '06 D3 A8L W12 brilliant black w/ amaretto; 4 seats, CPO; 275/35 on OEM polished + forged 20's; S8 sway bars (see: rear bar and gen'l D3 bar info and front bar); tweaked 385mm front factory brake mod and matching rear brake mod; matching C6 A6 back headrests (better rear view: headrest tweak); owner installed AMI retrofit with part number details here. [pics now only in picture poster] Upper control arm reference (+ more info in replies) here. Lower cost D3 OES sway bar links here.
Current #2: 2013 Q5 2.0T hybrid; Scuba blue w/ chestnut sport interior; Euro delivery 7/2013 (pictured at Ingolstadt); RS5 front brakes
"New" #3 at 3/16: 2015 CPO D4 S8, < 3200 miles at delivery. "All the options": Daytona Grey, Vermont Brown Exclusive full leather, B&O, Cold Weather, Night Vision, Driver Assistance Package, (std.) heads' up display, 21" 5 arm wheels

MP4.2+6.0 is online now   Reply With Quote
Old 07-25-2014, 10:28 AM   #5
AudiWorld Super User
mishar's Avatar
Join Date: Nov 2010
Location: Vancouver, Canada
Posts: 6,539

A8 is a heavy car but 200 Nm (148 foot pounds) + 180 is definitely heavy truck domain. Tools including. You will probably need engine running in order to achieve enough braking power. Wheel shouldn't be under load with that bolt loose. It would damage the bearing.
mishar is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
STFA and found nothing: Exhaust Rumble and CEL Togglehead Audi allroad 3 09-21-2015 11:07 AM
Audi Other FS: New SPC Performance Adjustable Front Control Arms for a multitude of Audis MonSoonHell Parts For Sale 0 09-15-2015 07:14 PM
Upper control arm camber centric. blink A6 / S6 (C5 Platform) Discussion 3 09-14-2015 02:21 PM
First Experience with Audi Dealer Service Dept. the_duke A8 / S8 (D3 Platform) Discussion 6 09-10-2015 09:02 AM
:: ECS Tuning :: MKI TT ECS Assembled Control Arm Kit Collection ECS Tuning-Audi TT (Mk1) Discussion 0 09-01-2015 12:25 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -8. The time now is 07:09 PM.