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How to change front strut mount on AUDI A6 Avant (4B5, C5) – replacement guide
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This replacement procedure can be used for:
AUDI A6 Avant (4B5, C5) 1.9 TDI, AUDI A6 Avant (4B5, C5) 1.8, AUDI A6 Avant (4B5, C5) 2.8 quattro, AUDI A6 Avant (4B5, C5) 1.8 T, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.8, AUDI A6 Avant (4B5, C5) 1.8 T quattro, AUDI A6 Avant (4B5, C5) 2.4 quattro, AUDI A6 Avant (4B5, C5) 2.5 TDI, AUDI A6 Avant (4B5, C5) 2.5 TDI quattro, AUDI A6 Avant (4B5, C5) 2.7 T, AUDI A6 Avant (4B5, C5) 2.7 T quattro, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 1.8 T quattro, AUDI A6 Avant (4B5, C5) 1.8 T, AUDI A6 Avant (4B5, C5) 2.5 TDI, AUDI A6 Avant (4B5, C5) 2.5 TDI quattro, AUDI A6 Avant (4B5, C5) 1.9 TDI, AUDI A6 Avant (4B5, C5) 1.8, AUDI A6 Avant (4B5, C5) 2.8, AUDI A6 Avant (4B5, C5) 2.8, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.0, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.4 quattro, AUDI A6 Avant (4B5, C5) 2.5 TDI, AUDI A6 Avant (4B5, C5) 3.0, AUDI A6 Avant (4B5, C5) 3.0 quattro, AUDI A6 Avant (4B5, C5) 1.9 TDI, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.4 quattro, AUDI A6 Avant (4B5, C5) 2.5 TDI, AUDI A6 Avant (4B5, C5) 2.4 quattro, AUDI A6 Avant (4B5, C5) 3.0 … View more
The steps may slightly vary depending on the car design.
AUDI A6 Avant (4B5, C5) 1.9 TDI, AUDI A6 Avant (4B5, C5) 1.8, AUDI A6 Avant (4B5, C5) 2.8 quattro, AUDI A6 Avant (4B5, C5) 1.8 T, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.8, AUDI A6 Avant (4B5, C5) 1.8 T quattro, AUDI A6 Avant (4B5, C5) 2.4 quattro, AUDI A6 Avant (4B5, C5) 2.5 TDI, AUDI A6 Avant (4B5, C5) 2.5 TDI quattro, AUDI A6 Avant (4B5, C5) 2.7 T, AUDI A6 Avant (4B5, C5) 2.7 T quattro, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 1.8 T quattro, AUDI A6 Avant (4B5, C5) 1.8 T, AUDI A6 Avant (4B5, C5) 2.5 TDI, AUDI A6 Avant (4B5, C5) 2.5 TDI quattro, AUDI A6 Avant (4B5, C5) 1.9 TDI, AUDI A6 Avant (4B5, C5) 1.8, AUDI A6 Avant (4B5, C5) 2.8, AUDI A6 Avant (4B5, C5) 2.8, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.0, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.4 quattro, AUDI A6 Avant (4B5, C5) 2.5 TDI, AUDI A6 Avant (4B5, C5) 3.0, AUDI A6 Avant (4B5, C5) 3.0 quattro, AUDI A6 Avant (4B5, C5) 1.9 TDI, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.4 quattro, AUDI A6 Avant (4B5, C5) 2.5 TDI, AUDI A6 Avant (4B5, C5) 2.4 quattro, AUDI A6 Avant (4B5, 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 – Strut Mount for A6 Avant (4B5, C5) and other AUDI models
Top strut mount
Alternative products

Wire brush
WD-40 spray
Brake cleaner
Copper grease
Combination spanner #18
Drive socket # 13
Drive socket # 18
Drive socket # 19
HEX bit no.H5.
Wheel impact socket #17
Ratchet wrench
Torque wrench
Flat Screwdriver
Pin punch
Hammer
Hydraulic transmission jack
Hydraulic strut spring compressor
Fender cover
Wheel chock
Replacement: strut mount – AUDI A6 Avant (4B5, C5). AUTODOC recommends:
- All mounts of the front shock struts should be replaced simultaneously.
- The replacement procedure is identical for the mounts of the left and right shock struts of the front suspension.
- Be sure to replace all self-locking nuts and bolts during installation.
- Warning! Shut down the engine before starting any work – AUDI A6 Avant (4B5, C5).
Carry out replacement in the following order:
- 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: strut mount – AUDI A6 Avant (4B5, C5). Tip:To avoid injury, hold up the wheel when unscrewing the bolts.Step 5Remove the wheel.
- Step 6Clean the fastening bolt that connects the shock absorber fork with the lower control arm. Use a wire brush. Use WD-40 spray.
- Step 7Unscrew the fastening bolt that connects the shock absorber fork with the lower control arm. Use a combination spanner #18. Use a drive socket #18. Use a ratchet wrench.
- Step 8Remove the fastening bolt. Use a pin punch. Use a hammer.
- Step 9Lower the car.Step 10Open the hood.Step 11Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.Step 12Remove the cowl grille seal.
- Step 13Raise up and remove the cowl grille.
- Step 14Remove the shock strut mount cap. Use a flat screwdriver.
- Step 15Unscrew the top fastening of the shock strut. Use a drive socket #13. Use a ratchet wrench.Replacement: strut mount – AUDI A6 Avant (4B5, C5). AUTODOC experts recommend:To avoid injuries, hold the shock strut when undoing the fastening bolts.
- Step 16Remove the suspension strut.
- Step 17Set the shock absorber strut on the spring compressor tool.AUTODOC recommends:Note that when using a spring compressor, spring coils need to be securely gripped, compressing the spring on the opposite sides.Ensure the correct position of the spring in the retainer.Make sure that the spring coils tightly entered the lock handles.
- Step 18Compress the spring.Step 19Treat the shock strut rod. Use a wire brush. Use WD-40 spray.
- Step 20Remove the strut piston rod nut. Use a drive socket #19. Use a ratchet wrench.
- Step 21Remove the top strut mount. Use a flat screwdriver.Replacement: strut mount – AUDI A6 Avant (4B5, C5). Professionals recommend:Examine the shock absorber dust cap and the bump stop. Replace them if necessary.
- Step 22Install a new strut mount.
- Step 23Tighten the shock strut piston rod nut. Use HEX No.H5. Use a drive socket #19. Use a torque wrench. Tighten it to 50 nm torque.Replacement: strut mount – AUDI A6 Avant (4B5, C5). Tip from AUTODOC experts:Check to make sure the spring is positioned correctly. Avoid its misalignment.
- Step 24Decompress the spring.Step 25Remove the assembled shock strut.
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