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How to change front coil springs on Mercedes W245 – replacement guide
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Important!
This replacement procedure can be used for:
MERCEDES-BENZ B-Class (W245) B 180 CDI (245.207), MERCEDES-BENZ B-Class (W245) B 200 CDI (245.208), MERCEDES-BENZ B-Class (W245) B 170 (245.232), MERCEDES-BENZ B-Class (W245) B 200 TURBO (245.234), MERCEDES-BENZ B-Class (W245) B 150 (245.231) … View more
The steps may slightly vary depending on the car design.
MERCEDES-BENZ B-Class (W245) B 180 CDI (245.207), MERCEDES-BENZ B-Class (W245) B 200 CDI (245.208), MERCEDES-BENZ B-Class (W245) B 170 (245.232), MERCEDES-BENZ B-Class (W245) B 200 TURBO (245.234), MERCEDES-BENZ B-Class (W245) B 150 (245.231) … View more
The steps may slightly vary depending on the car design.
How to change front springs / front coil springs on MERCEDES-BENZ B200 (W245) [TUTORIAL AUTODOC]

All the parts you need to replace – Springs for B-Class (W245) and other MERCEDES-BENZ models
Coil spring
Alternative products

Wire brush
WD-40 spray
Brake cleaner
Copper grease
Combination spanner #16
Combination spanner #21
HEX bit no.H6.
Drive socket # E12
Drive socket # 21
Drive socket # 22
Wheel impact socket #H12
Ratchet wrench
Torque wrench
Tap wrench
Crow bar
Hydraulic strut spring compressor
Hydraulic transmission jack
Fender cover
Wheel chock
Replacement: coil springs – Mercedes W245. Tip from AUTODOC experts:
- Both coil springs of the front suspension should be replaced simultaneously.
- The replacement procedure is identical for the left and right coil springs of the front suspension.
- Warning! Shut down the engine before starting any work – Mercedes W245.
Carry out replacement in the following order:
- 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 #H12.
- Step 6Raise the front of the car and secure on supports.
- Step 7Unscrew the wheel bolts.Replacement: coil springs – Mercedes W245. AUTODOC recommends:To avoid injury, hold up the wheel when unscrewing the bolts.
- Step 8Remove the wheel.
- Step 9Clean the stabiliser link fasteners. Use a wire brush. Use WD-40 spray.
- Step 10Unscrew the fastener connecting the stabilizer link to the shock strut. Use a combination spanner #16.
- Step 11Remove the stabilizer rod.
- Step 12Disconnect the ABS sensor wiring. Disconnect the brake pad wear sensor plug.Replacement: coil springs – Mercedes W245. Tip:Some cars are not equipped with the brake pad wear sensor.
- Step 13Disconnect the brake hose mounting bracket. Use a crowbar.
- Step 14Clean the fasteners connecting the shock strut to the steering knuckle. Use a wire brush. Use WD-40 spray.
- Step 15Unscrew the lower fastener connecting the shock strut to the steering knuckle. Use a combination spanner #21. Use a drive socket #21. Use a tap wrench.
- Step 16Remove the fastening bolt.
- Step 17Prop up the steering knuckle. Use a hydraulic transmission jack.
- Step 18Remove the fastening bolt.
- Step 19Disconnect the steering knuckle from the shock absorber strut.
- Step 20Unscrew the top fastening of the shock strut mount.AUTODOC recommends:Important! Hold the suspension strut while unscrewing the fastening bolts. Mercedes W245Step 21Remove the suspension strut.
- Step 22Set the shock absorber strut on the spring compressor tool.Replacement: coil springs – Mercedes W245. 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 23Treat the shock strut rod. Use a wire brush. Use WD-40 spray.
- Step 24Compress the spring.
- Step 25Remove the strut piston rod nut. Use HEX No.H6. Use a drive socket #21. Use a ratchet wrench.
- Step 26Remove the top strut mount.
- Step 27Release the coil spring.
- Step 28Remove the spring.
- Step 29Remove the shock absorber dust cap and the bump stop.AUTODOC recommends:Replacement: coil springs – Mercedes W245. Carefully inspect the mount, the boot, and the bump stop of the shock absorber. Replace if necessary.
- Step 30Install the dust sleeve and the bump stop on the new shock absorber.
- Step 31Install the spring on the shock absorber.
- Step 32Compress the spring.
- Step 33Install the upper strut mount and the strut mount bearing.
- Step 34Tighten the shock strut piston rod nut. Use a drive socket #22. Use HEX No.H6. Use a torque wrench. Tighten it to 60 Nm torque.Replacement: coil springs – Mercedes W245. Tip from AUTODOC:Check to make sure the spring is positioned correctly. Avoid its misalignment.
- Step 35Treat the shock strut rod. Use copper grease.
- Step 36Decompress the spring.
- Step 37Remove the assembled shock strut.
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