Vauxhall MOVANO, Owner'S Manual, Page: 118 / 177

Roof rack, caravan and trailer towing 113
Coupling socket load
The coupling socket load is the load
exerted by the caravan / trailer on the
coupling ball. It can be varied by changing
the weight distribution when loading the
caravan / trailer.
The maximum permissible coupling socket
load for the towing vehicle, stated on the
label, should always be aimed for,
particularly in the case of heavy caravans /
trailers. The coupling socket load should
never be below 25 kg.
When measuring the coupling socket load,
make sure that the drawbar of the loaded
caravan / trailer is at the same height as it
will be when the caravan / trailer is coupled
with the towing vehicle loaded. Particularly
important for caravan / trailer with tandem
axle.
Rear axle load during towing
When the caravan / trailer is coupled and
the towing vehicle fully loaded (including
all occupants), the permissible rear axle
load must not be exceeded.
Tyre inflation pressure
Increase the tyre inflation pressure on the
towing vehicle to the value given for full
load (see page 159). Also check the
pressure of the caravan / trailer tyres.
Driving characteristics, towing
tips
In the case of caravans / trailers with
brakes, attach the breakaway stopping
cable.
Before coupling the caravan / trailer,
lubricate the ball of the caravan / trailer
towing device. However, do not do so if a
stabilizer which acts on the coupling ball is
being used to damp rolling motions.