Quick answer: Upper Control Arm Bushing Replacement on a 2004–2008 Audi A4 is rated Advanced and takes about 2-3 hours. You'll need 10 tools for this job, and parts cost about $200. This guide walks you through the full job step by step, including the mistakes to avoid.
| Part Name |
Part Number |
Price |
Buy |
| Front Forward Upper Control Arm Bushings |
— |
$50.00 |
|
| Replacement Upper Control Arm |
— |
$150.00 |
|
| Cotter pin (new) |
— |
— |
|
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Step-by-Step Instructions
Follow these steps carefully
1
Safely raise and support the 2004-2008 Audi A4 B7
On the 2004-2008 Audi A4 B7: park on level ground, loosen the wheel lug nuts slightly, then raise the 2004-2008 Audi A4 B7 and support it on jack stands. Remove the wheel.
🔧 Mechanic's note — Tom Becker
I raise the A4 safely and set the stands — then I try to move the car. Control-arm work needs pry bars and big force, and I have seen a stand walk on a smooth floor. Mine get tested before I trust them.
2
Mark alignment references and free the ball joint
Mark cam bolts or eccentric washers if present so you can approximate alignment on reassembly. Remove the cotter pin/nut and separate the ball joint from the knuckle with a pickle fork or ball-joint separator — protect the boot on parts you are reusing.
3
Unbolt bushings and remove the control arm
Remove the inner control-arm bushing bolts/nuts at the subframe. Lower the arm carefully out of the 2004-2008 Audi A4 B7. Note bolt orientation and any washers or flags that must go back the same way.
4
Compare the new control arm
Compare ball-joint taper, bushing style, and mounting holes to the old arm. Transfer any reusable sensors, brackets, or sway-bar end-link hardware only if the new arm is not fully loaded. Inspect the ball-joint boot for damage before install.
🔧 Mechanic's note — Ray Delgado
I compare ball-joint taper, bushing style, and mounting holes on the new A4 control arm against the old one, and I only transfer sensors and brackets that match. A wrong bushing means the alignment numbers will not hold.
5
Install the new arm and torque fasteners
Position the new control arm, start all bolts by hand, reconnect the ball joint, and torque fasteners to spec. Where bushings must be torqued at ride height, lower the 2004-2008 Audi A4 B7 onto supports or a jack under the arm before final torque so bushings are not preloaded incorrectly. Fit the cotter pin.
6
Reinstall the wheel and get an alignment
Reinstall the wheel, torque lug nuts in a star pattern, and lower the 2004-2008 Audi A4 B7. Check for clunks on a short drive, then have a professional four-wheel alignment performed — control-arm work changes camber/caster.
All Done!
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
- • Not properly supporting the vehicle before starting the repair
- • Failing to torque bolts to manufacturer specifications
- • Using incorrect tools for bushing removal
