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How to change front lower arm on AUDI A6 Avant (4F5, C6) – replacement guide
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This replacement procedure can be used for:
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The steps may slightly vary depending on the car design.
AUDI A6 Avant (4F5, C6) 3.0 TFSI quattro, AUDI A6 Avant (4F5, C6) 2.0 TDI, AUDI A6 Avant (4F5, C6) 2.7 TDI, AUDI A6 Avant (4F5, C6) 3.0 TDI quattro, AUDI A6 Avant (4F5, C6) 3.2 FSI, AUDI A6 Avant (4F5, C6) 3.2 FSI quattro, AUDI A6 Avant (4F5, C6) 4.2 quattro, AUDI A6 Avant (4F5, C6) 2.4, AUDI A6 Avant (4F5, C6) 2.4 quattro, AUDI A6 Avant (4F5, C6) 3.0 TDI quattro, AUDI A6 Avant (4F5, C6) 2.7 TDI, AUDI A6 Avant (4F5, C6) 2.7 TDI quattro, AUDI A6 Avant (4F5, C6) 2.0 TFSI, AUDI A6 Avant (4F5, C6) 2.0 TDI, AUDI A6 Avant (4F5, C6) 2.7 TDI quattro, AUDI A6 Avant (4F5, C6) S6 quattro, AUDI A6 Avant (4F5, C6) 4.2 FSI quattro, AUDI A6 Avant (4F5, C6) 3.0 TDI quattro, AUDI A6 Avant (4F5, C6) 2.8 FSI, AUDI A6 Avant (4F5, C6) 3.0 quattro, AUDI A6 Avant (4F5, C6) 2.8 FSI quattro, AUDI A6 Avant (4F5, C6) 2.0 TDI, AUDI A6 Avant (4F5, C6) 2.0 TDI, AUDI A6 Avant (4F5, C6) 2.7 TDI, AUDI A6 Avant (4F5, C6) 2.7 TDI quattro, AUDI A6 Avant (4F5, C6) 2.8 FSI, AUDI A6 Avant (4F5, C6) 2.8 FSI, AUDI A6 Avant (4F5, C6) 2.8 FSI quattro, AUDI A6 Avant (4F5, C6) 2.8 FSI quattro, AUDI A6 Avant (4F5, C6) 3.0 TDI quattro, AUDI A6 Avant (4F5, C6) 3.0 TFSI quattro, AUDI A6 Avant (4F5, C6) 3.0, AUDI A6 Avant (4F5, C6) 2.0 TDI … View more
The steps may slightly vary depending on the car design.
This video shows the replacement procedure of a similar car part on another vehicle
All the parts you need to replace – Control Arm for A6 Avant (4F5, C6) and other AUDI models
Suspension arm
Alternative products

Wire brush
WD-40 spray
Brake cleaner
Copper grease
Combination spanner #18
Combination spanner #21
Drive socket # 18
Drive socket # 21
Wheel impact socket #17
Torque wrench
Tap wrench
Ball joint puller
Crow bar
Hydraulic transmission jack
Wheel chock
Replacement: front lower arm – AUDI A6 Avant (4F5, C6). AUTODOC recommends:
- The replacement procedure is identical for the left and right lower control arms.
- All work should be done with the engine stopped.
Replacement: front lower arm – AUDI A6 Avant (4F5, C6). Take the following steps:
- Step 1Secure the wheels with chocks.
- Step 2Loosen the wheel mounting bolts. Use wheel impact socket #17.
- Step 3Raise the front of the car and secure on supports.Step 4Unscrew the wheel bolts.Replacement: front lower arm – AUDI A6 Avant (4F5, C6). Tip:To avoid injury, hold up the wheel when unscrewing the bolts.
- Step 5Remove the wheel.
- Step 6Clean all joints of the arm. Use a wire brush. Use WD-40 spray.AUTODOC recommends:Replacement: front lower arm – AUDI A6 Avant (4F5, C6). After applying the spray, wait a few minutes.Wear protective goggles.
- Step 7Unscrew the ball joint fastening to the steering knuckle. Use a drive socket #21. Use a tap wrench.
- Step 8Disconnect the ball joint from the steering knuckle. Use a ball joint puller.
- Step 9Clean all joints of the arm. Use a wire brush. Use WD-40 spray.Replacement: front lower arm – AUDI A6 Avant (4F5, C6). AUTODOC recommends:After applying the spray, wait a few minutes.Wear protective goggles.
- Step 10Unscrew the rear fastener connecting the control arm to the subframe. Use a combination spanner #18 (2 pieces).
- Step 11Remove the fastening bolt. Use a crowbar.
- Step 12Remove the arm.
- Step 13Clean the mounting seats and the thread of the suspension arm. Use a wire brush. Use WD-40 spray.
- Step 14Install a new arm.Replacement: front lower arm – AUDI A6 Avant (4F5, C6). AUTODOC experts recommend:During the installation process, use only new bolts and nuts.Do not damage the ball joint cover.
- Step 15Support the arm. Use a hydraulic transmission jack.
- Step 16Connect the ball joint to the steering knuckle.
- Step 17Install the fastening bolt. Use a combination spanner #21.
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