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How to change front lower arm on AUDI A6 C5 Saloon (4B2) – replacement guide
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Important!
This replacement procedure can be used for:
AUDI A6 Saloon (4B2, C5) 1.8 T, AUDI A6 Saloon (4B2, C5) 1.8 T quattro, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.4 quattro, AUDI A6 Saloon (4B2, C5) 1.9 TDI, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 2.8, AUDI A6 Saloon (4B2, C5) 2.8 quattro, AUDI A6 Saloon (4B2, C5) 2.5 TDI quattro, AUDI A6 Saloon (4B2, C5) 1.8, AUDI A6 Saloon (4B2, C5) 2.7 T, AUDI A6 Saloon (4B2, C5) 2.7 T quattro, AUDI A6 Saloon (4B2, C5) 1.8 T quattro, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 3.7, AUDI A6 Saloon (4B2, C5) 4.2 quattro, AUDI A6 Saloon (4B2, C5) 3.7 quattro, AUDI A6 Saloon (4B2, C5) 1.8 T, AUDI A6 Saloon (4B2, C5) S6 quattro, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 2.5 TDI quattro, AUDI A6 Saloon (4B2, C5) 1.9 TDI, AUDI A6 Saloon (4B2, C5) 1.8, AUDI A6 Saloon (4B2, C5) 2.8, AUDI A6 Saloon (4B2, C5) 2.8, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.0, AUDI A6 Saloon (4B2, C5) 3.0, AUDI A6 Saloon (4B2, C5) 3.0 quattro, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.4 quattro, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 2.7 T quattro, AUDI A6 Saloon (4B2, C5) 1.9 TDI, AUDI A6 Saloon (4B2, C5) RS6 quattro, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.4 quattro, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 2.4 quattro, AUDI A6 Saloon (4B2, C5) 3.0 quattro, AUDI A6 Saloon (4B2, C5) 2.8 quattro, AUDI A6 Saloon (4B2, C5) 3.0 … View more
The steps may slightly vary depending on the car design.
AUDI A6 Saloon (4B2, C5) 1.8 T, AUDI A6 Saloon (4B2, C5) 1.8 T quattro, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.4 quattro, AUDI A6 Saloon (4B2, C5) 1.9 TDI, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 2.8, AUDI A6 Saloon (4B2, C5) 2.8 quattro, AUDI A6 Saloon (4B2, C5) 2.5 TDI quattro, AUDI A6 Saloon (4B2, C5) 1.8, AUDI A6 Saloon (4B2, C5) 2.7 T, AUDI A6 Saloon (4B2, C5) 2.7 T quattro, AUDI A6 Saloon (4B2, C5) 1.8 T quattro, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 3.7, AUDI A6 Saloon (4B2, C5) 4.2 quattro, AUDI A6 Saloon (4B2, C5) 3.7 quattro, AUDI A6 Saloon (4B2, C5) 1.8 T, AUDI A6 Saloon (4B2, C5) S6 quattro, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 2.5 TDI quattro, AUDI A6 Saloon (4B2, C5) 1.9 TDI, AUDI A6 Saloon (4B2, C5) 1.8, AUDI A6 Saloon (4B2, C5) 2.8, AUDI A6 Saloon (4B2, C5) 2.8, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.0, AUDI A6 Saloon (4B2, C5) 3.0, AUDI A6 Saloon (4B2, C5) 3.0 quattro, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.4 quattro, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 2.7 T quattro, AUDI A6 Saloon (4B2, C5) 1.9 TDI, AUDI A6 Saloon (4B2, C5) RS6 quattro, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.4 quattro, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 2.4 quattro, AUDI A6 Saloon (4B2, C5) 3.0 quattro, AUDI A6 Saloon (4B2, C5) 2.8 quattro, AUDI A6 Saloon (4B2, C5) 3.0 … 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 Saloon (4B2, C5) and other AUDI models
Alternative products

Wire brush
WD-40 spray
Brake cleaner
Multipurpose grease
Copper grease
Combination spanner #18
Drive socket # 10
Drive socket # 18
Wheel impact socket #17
Ratchet wrench
Torque wrench
Phillips screwdriver
Flat Screwdriver
Ball joint puller
Crow bar
Hydraulic transmission jack
Wheel chock
Replacement: front lower arm – AUDI A6 (4B2, C5). AUTODOC experts recommend:
- 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 (4B2, C5). Use the following procedure:
- Step 1
Secure the wheels with chocks. - Step 2
Loosen the wheel mounting bolts. Use wheel impact socket #17. - Step 3Raise the front of the car and secure on supports.Step 4
Unscrew the wheel bolts.AUTODOC recommends:Important! Hold the wheel while unscrewing the fastening bolts. AUDI A6 (4B2, C5) - Step 5
Remove the wheel. - Step 6
Unscrew fixing bolts of the protective cover. Use a flat screwdriver. - Step 7
Remove the protective cover. - Step 8
Clean all joints of the arm. Use a wire brush. Use WD-40 spray.Replacement: front lower arm – AUDI A6 (4B2, C5). Tip:After applying the spray, wait a few minutes.Wear protective goggles. - Step 9
Unscrew the ball joint fastening to the steering knuckle. Use a combination spanner #18. - Step 10
Disconnect the ball joint from the steering knuckle. Use a ball joint puller. - Step 11
Unscrew the rear fastener connecting the control arm to the subframe. Use a combination spanner #18 (2 pieces). - Step 12
Unscrew and remove the wheel arch cover fasteners. Use a Phillips screwdriver. Use a drive socket #10. Use a ratchet wrench. - Step 13
Remove the fastening bolt. Use a crowbar. - Step 14
Remove the arm. - Step 15
Clean the mounting seats and the thread of the suspension arm. Use a wire brush. Use WD-40 spray. - Step 16
Install a new arm.Replacement: front lower arm – AUDI A6 (4B2, C5). AUTODOC recommends:During the installation process, use only new bolts and nuts.Do not damage the ball joint cover. - Step 17
Install the fastening bolt. - Step 18
Screw the rear fastener connecting the control arm to the subframe. Use a combination spanner #18 (2 pieces). - Step 19
Treat all joints of the arm. Use a multipurpose grease. Use a flat screwdriver. - Step 20
Connect the ball joint to the steering knuckle.
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