Introduction: Mercedes C E CLK W203 W211 W209 Class Door Lock Actuator Spring Lock Repair Instructions Front Door

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Door lock bouncing up and down? Finding it increasingly difficult to lock your Mercedes?

The Springs within the door lock actuator mechanisms deteriorate over time, the OEM spring is made from cheap metal which wears quickly, this wear leads to the symptoms noted above.

Simply install our improved design replacement springs and restore your locks for good.

Made from high quality Stainless Steel (will not deteriorate over time like springs offered by some others) our improved design thicker wound springs will restore your lock and will not deteriorate over time like the OEM part does, save the cost of a replacement actuator that will just fail again.

Mercedes C Class W203 2000-2007

Mercedes E Class W211 2002-2009

Mercedes CLK W209 A209 2002-2009

Step 1: Remove Door Trim

Remove speaker.
Remove T20 torx and remove lock cover.
Lever off the cover from the door handle.

Remove the two torx bolts under the handle cover (T25, T30)

Lever off SRS badge and remove Torx beneath.

Lever around the edge of the door trim and lift off.

Pull upwards and forwards on the door trim to remove.

Remove electrical connectors.

Disconnect hook linkage.

Step 2: Loosen Window Guide

Peel back insulation to reveal rivets holding window guide.

Drill out two rivets from window guide (for reinstallation you can use our fixings included in our kit)

Step 3: Release Actuator

Remove the 3x T30 Torx screws holding the actuator.

If present remove plastic cover.

Step 4: Remove Outer Handle

Remove blanking plate and unscrew T20 torx holding outer door handle.

Remove handle, firstly remove small part of handle released by removing the previous T20 Torx then slide handle in to recess left from this to release from vehicle.

Step 5: Remove Actuator

Slide actuator out of position and remove.

Step 6: Replace Spring

Lever off actuator cover.


Replace spring as shown, remove any remains of old spring if in place.If there are remains of the spring deep in the top recess please remove.

Using the pliers insert the top leg of the spring in to the top recess, if you are unable to do this it is likely that there is still remains of the old spring in place. Attach pliers firmly to the bottom leg of the spring and force in to bottom recess, some force will be required, do not worry the spring will not snap.

Once in place slide bottom leg of spring in to the smallest part of the recess. Test function to make sure spring is seated correctly; test again when reattaching actuator to vehicle.

Step 7: Refitting Window Guide

For reinstallation the window guide can be riveted back in to position or can be fixed using the fasteners included with our product.

Installation is carried out at installers risk, if unsure please contact us or a professional, X8R Ltd cannot be held responsible for any adverse result of installing this product or any injuries caused by install, if in doubt ask a professional. All images and texts are copyright X8R Ltd 2013.