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How to change front strut mount on Mercedes W168 – replacement guide
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Important!
This replacement procedure can be used for:
MERCEDES-BENZ A-Class (W168) A 140 (168.031, 168.131), MERCEDES-BENZ A-Class (W168) A 140 (168.031, 168.131), MERCEDES-BENZ A-Class (W168) A 160 CDI (168.007), MERCEDES-BENZ A-Class (W168) A 170 CDI (168.008), MERCEDES-BENZ A-Class (W168) A 190 (168.032, 168.132), MERCEDES-BENZ A-Class (W168) A 160 CDI (168.006), MERCEDES-BENZ A-Class (W168) A 170 CDI (168.009, 168.109), MERCEDES-BENZ A-Class (W168) A 210 (168.035, 168.135) … View more
The steps may slightly vary depending on the car design.
MERCEDES-BENZ A-Class (W168) A 140 (168.031, 168.131), MERCEDES-BENZ A-Class (W168) A 140 (168.031, 168.131), MERCEDES-BENZ A-Class (W168) A 160 CDI (168.007), MERCEDES-BENZ A-Class (W168) A 170 CDI (168.008), MERCEDES-BENZ A-Class (W168) A 190 (168.032, 168.132), MERCEDES-BENZ A-Class (W168) A 160 CDI (168.006), MERCEDES-BENZ A-Class (W168) A 170 CDI (168.009, 168.109), MERCEDES-BENZ A-Class (W168) A 210 (168.035, 168.135) … View more
The steps may slightly vary depending on the car design.
How to change front strut mount / top munt MERCEDES-BENZ A160 (W168) [TUTORIAL AUTODOC]

All the parts you need to replace – Strut Mount for A-Class (W168) and other MERCEDES-BENZ models
Top strut mount
Alternative products

Wire brush
WD-40 spray
Copper grease
Drive socket # E12
Drive socket # 16
Drive socket # 18
Drive socket # 19
HEX bit No.H7.
Combination spanner #16
Combination spanner #18
Combination spanner #19
Wheel impact socket #17
Ratchet wrench
Torque wrench
Tap wrench
Pin punch
Rubber mallet
Pliers
Hydraulic transmission jack
Hydraulic strut spring compressor
Fender cover
Wheel chock
Replacement: strut mount – Mercedes W168. Tip:
- 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.
- All work should be done with the engine stopped.
Replacement: strut mount – Mercedes W168. Recommended sequence of steps:
- Step 1Open the bonnet.
- Step 2Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
- Step 3Loosen the upper fastener of the shock strut mount. Use a drive socket #E12. Use a ratchet wrench.
- Step 4Secure the wheels with chocks.
- Step 5Loosen the wheel mounting bolts. Use wheel impact socket #17.
- Step 6Raise the front of the car and secure on supports.
- Step 7Unscrew the wheel bolts.Replacement: strut mount – Mercedes W168. AUTODOC recommends:To avoid injury, hold up the wheel when unscrewing the bolts.
- Step 8Remove the wheel.
- Step 9.1Clean the fasteners connecting the stabiliser link to the shock strut, and those connecting the shock strut to the steering knuckle. Use a wire brush.Step 9.2Use WD-40 spray.
- Step 10Disconnect the wiring and the brake hose from the bracket on the shock strut.
- Step 11Unscrew the nut and remove the stabilizer rod from the shock strut. Use a combination spanner #16.
- Step 12Unscrew the lower fastener connecting the shock strut to the steering knuckle. Use a drive socket #18. Use a combination spanner #18. Use a ratchet wrench. Use a tap wrench.
- Step 13Prop up the steering knuckle. Use a hydraulic transmission jack.
- Step 14Remove the fastening bolts. Use a hammer. Use a pin punch.
- Step 15Disconnect the steering knuckle from the shock absorber strut.
- Step 16Unscrew the upper fastening of the shock absorber strut. Use a drive socket #E12.AUTODOC recommends:Important! Hold the suspension strut while unscrewing the fastening bolts. Mercedes W168
- Step 17Release the plastic strut mount retainers. Use pliers.
- Step 18Remove the suspension strut.
- Step 19Set the shock absorber strut on the spring compressor tool.Replacement: strut mount – Mercedes W168. Professionals recommend: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 20Compress the spring.
- Step 21Clean the shock absorber rod fastener. Use a wire brush. Use WD-40 spray.
- Step 22Remove the strut piston rod nut. Use a combination spanner #19. Use HEX No.H7. Use a ratchet wrench.
- Step 23Remove the shock absorber mount, boot and bump stop.Replacement: strut mount – Mercedes W168. Tip from AUTODOC experts:Examine the shock absorber dust cap and the bump stop. Replace them if necessary.
- Step 24Install the new mount, boot, and bump stop on the shock absorber.
- Step 25Tighten the shock strut piston rod nut. Use a drive socket #19. Use HEX No.H7. Use a torque wrench. Tighten it to 60 Nm torque.Replacement: strut mount – Mercedes W168. Tip from AUTODOC:Check to make sure the spring is positioned correctly. Avoid its misalignment.
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