Mercedes-Benz GL Operator's Manual page 236

Driving systems
234
Red guide line at a distance of
:
approximately 10 in (0.25 m) from the
rear of the vehicle
White guide line without turning the
;
steering wheel
End of parking space
=
Back up carefully until you have reached
X
the final position.
Red guide line : is then at end of parking
space =. The vehicle is almost parallel in
the parking space.
"Coupling up a trailer" function
! The following distance specifications
refer to trailer tow hitches with ball
coupling that have been approved for this
vehicle by Mercedes-Benz. Distances may
differ if you use other ball couplings. In this
case, take into account that actual
distances will not match the following
distance specifications. Otherwise you
could damage the trailer and vehicle.
Vehicle center point on the yellow guide
:
line at a distance of approximately 3 ft
(1.0 m) from the rear of the vehicle
Trailer drawbar
;
Ball coupling
=
This function is only available on vehicles with
a trailer tow hitch.
Set the height of trailer drawbar ; so that
X
it is slightly higher than ball coupling =.
Position the vehicle centrally in front of
X
trailer drawbar ;.
Ball coupling
:
Red guide line at a distance of
;
approximately 10 in (0.25 m) from the ball
coupling
Trailer drawbar marker assistant
=
Trailer drawbar
?
Symbol for the "Coupling up a trailer"
A
function