Contents: Removal ↡ Installation ↡
Removal
Warning! When removing the front suspension spring, you must use a special tool that can compress and hold the front suspension spring in a compressed state during removal. Removing the spring without a special spring compression tool may result in injury.
1. Apply the parking brake, then raise the front of the vehicle and secure it on stands. Remove the affected front wheel.
2. Using a special device, compress the spring so that it moves away from the upper support plate. When using a special tool for compressing springs, make sure that the spring coils are firmly grasped and compress the spring from opposite sides. The spring has a very high compression force, so use only a very reliable tool. Never tie the spring with wire.
3. Use a jack to support the lower arm of the front suspension through a wooden block.
4. Unscrew the nuts securing the upper shock absorber support to the car body.
5. Using a jack, carefully lower the lower control arm of the front suspension until the coil spring and upper support cup can be removed.
6. Inspect the coil spring and upper support plate for signs of wear, damage and corrosion and replace if necessary.
Installation
1. Clean the lower spring support cup, then install the upper spring support cup onto the spring and push the spring into place.
2. Rotate the coil spring so that its lower end is correctly positioned in the lower spring seat. Position the upper spring seat under the mount and carefully jack up the lower arm until the upper shock absorber mount is in place.
3. Check that the spring is positioned correctly, then screw on the new upper shock absorber support mounting nuts and tighten them to the specified torque.
4. Remove the jack from under the lower front control arm, then carefully release the spring compressor and recheck that the spring is seated correctly in the spring seats.
5. Install the wheel, then lower the vehicle to the ground and tighten the wheel bolts to the specified torque.
[Original can be found on the website MERCEDESMAN]