Head Restraint System: Service and Repair

Resetting activated head restraints

If the active head restraints have been triggered in an accident, reset the active head restraints on the driver's and front-passenger seats. Otherwise, the additional protection will not be available in the event of another rear-end collision. NECK-PRO active head restraints that have been triggered are moved forwards and can no longer be adjusted.

WARNING
For reasons of safety, have the active head restraints checked at an authorized Mercedes-Benz Center after a rear-end collision.

WARNING
When pushing back the head restraint cushion, make sure your fingers do not become caught between the head restraint cushion and the cover. Failure to observe this could result in injuries.





1 Reset tool
2 Active head restraint
3 Opening

- Take reset tool 1 out of the Mercedes-Benz literature pouch.
- Guide reset tool 1 into opening 3 between head restraint cushion and head restraint cover.
- Press reset tool 1 forward
- Press reset tool 1 downward in direction of arrow until you hear the head restraint release mechanism audibly engage.
- Pull out reset tool 1.
- Firmly press the active head restraint cushion backward towards the head restraint cover in direction of arrow until it engages.
- Repeat this procedure for the second front seat.
- After resetting the NECK-PRO active front head restraints store reset tool 1 in the Mercedes-Benz literature pouch.