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How to change rear upper arm on AUDI A8 (4H2, 4H8, 4HC, 4HL) – replacement guide
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Important!
This replacement procedure can be used for:
AUDI A8 (4H2, 4H8, 4HC, 4HL) 6.3 W12 quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TFSI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TDI, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) S8 quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 4.0 TFSI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TFSI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 2.0 TFSI hybrid, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TFSI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 4.2 FSI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 4.2 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 4.2 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 4.0 TFSI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 2.5 TFSI, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) S8 plus quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 2.0 TFSI quattro … View more
The steps may slightly vary depending on the car design.
AUDI A8 (4H2, 4H8, 4HC, 4HL) 6.3 W12 quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TFSI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TDI, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) S8 quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 4.0 TFSI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TFSI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 2.0 TFSI hybrid, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TFSI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 4.2 FSI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 4.2 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 4.2 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 4.0 TFSI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 2.5 TFSI, AUDI A8 (4H2, 4H8, 4HC, 4HL) 3.0 TDI quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) S8 plus quattro, AUDI A8 (4H2, 4H8, 4HC, 4HL) 2.0 TFSI quattro … 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 A8 (4H2, 4H8, 4HC, 4HL) and other AUDI models
Alternative products

Wire brush
WD-40 spray
Brake cleaner
Copper grease
Combination spanner #18
Drive socket # 18
Wheel impact socket #17
Ratchet wrench
Torque wrench
Hydraulic transmission jack
Wheel chock
Replacement: rear upper arm – AUDI A8 (4H_). AUTODOC recommends:
- The replacement procedure is identical for the right and left upper control arms.
- All work should be done with the engine stopped.
Replacement: rear upper arm – AUDI A8 (4H_). Recommended sequence of steps:
- Step 1
Secure the wheels with chocks. - Step 2
Loosen the wheel mounting bolts. Use wheel impact socket #17. - Step 3Raise the rear of the car and secure on supports.Step 4
Unscrew the wheel bolts.Replacement: rear upper arm – AUDI A8 (4H_). Tip:To avoid injury, hold up the wheel when unscrewing the bolts. - Step 5
Remove the wheel. - Step 6
Clean all joints of the arm. Use a wire brush. Use WD-40 spray. - Step 7
Make a mark on the camber adjustment bolt. - Step 8
Support the arm. Use a hydraulic transmission jack. - Step 9
Unscrew the arm fastening from the subframe. Use a combination spanner #18. Use a drive socket #18. Use a ratchet wrench. - Step 10
Unscrew the fastener connecting the control arm to the rear knuckle. Use a drive socket #18. Use a ratchet wrench. - Step 11
Remove the fastening bolts. - Step 12
Remove the rear upper arm. - Step 13
Clean the mounting seats and the thread of the suspension arm. Use a wire brush. Use WD-40 spray. - Step 14
Mount the rear upper arm.Replacement: rear upper arm – AUDI A8 (4H_). AUTODOC experts recommend:During the installation process, use only new bolts and nuts.Do not damage the ball joint cover. - Step 15
Install the fastening bolts. - Step 16
Screw in the fastener that connects the control arm to the rear knuckle. Use a drive socket #18. Use a ratchet wrench.
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