Diagnosis OBD
On the driver's side is an OBD socket for checking components relevant to the composition of the vehicle's emissions.
See also:
Checking the coolant level
1. Do not open the hood until the engine has
cooled down.
2. Turn the expansion tank cap counterclockwise
slightly to allow any accumulated pressure
to escape; then continue turning to
open.
...
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle, ...
Removing: Electrical* head restraints
Note
Do not remove the rear head restraints.
To avoid damage, they can only be installed by
your service center.
Removing
Only remove the head restraint if no one will be
sitting in the seat ...