Adjusting the head restraint manually
WARNING Risk of accident due to adjusting vehicle settings while the vehicle is in motion
You could lose control of the vehicle in the following situations in particular:
If you adjust the driver's seat, the head restraints, the steering wheel or the mirror while the vehicle is in motion.
If you fasten your seat belt while the vehicle is in motion.
Before starting the engine: adjust the driver's seat, the head restraints, the steering wheel and the mirror and fasten your seat belt.
WARNING Risk of injury due to head restraints not being fitted or being adjusted incorrectly
If head restraints have not been installed or have not been adjusted correctly, there is an increased risk of injury in the head and neck area, e.g. in the event of an accident or when braking.
Always drive with the head restraints fitted.
Before driving off, make sure for every vehicle occupant that the centre of the head restraint supports the back of the head at about eye level.
Using the head restraint fore-and-aft adjustment, adjust the head restraint so that it is as close to the back of the head as possible.
To raise:
pull the head restraint upwards into the required position and ensure that the head restraint is engaged. Use the head restraint only in the engaged state.
To lower:
push release button 
and slide the head restraint downwards into the required position and ensure that the head restraint is engaged. Use the head restraint only in the engaged state.
To move forwards:
push release button 
and pull the head restraint forwards until it engages in the required position. To move backwards:
push release button and slide the head restraint backwards into the required position. To remove:
press release knob and pull the head restraint up and out. To fit:
press the head restraint with detent into the holes on the left-hand side when viewed in the direction of travel until it engages.