BMW M5 Owner's Handbook Manual page 297

WARNING
The tyre inflation pressure must be adapted
because of the increased axle load when tow‐
ing a trailer. Driving with an inadequate tyre in‐
flation pressure can damage the tyres. There is
a danger of accidents or damage to property.
Do not exceed a speed of 100 km/h / 60 mph.
Increase the tyre inflation pressure of the tow‐
ing vehicle by 0.2 bar. Note the maximum pos‐
sible tyre inflation pressure stated on the tyre.
Upward gradients
General
In the interest of safety and to avoid holding up
other traffic, do not attempt to climb upward gra‐
dients steeper than 12 % when towing a trailer.
If higher trailer loads have been retrospectively
approved, the limit is 8 %.
Driving off on upward gradients
The parking brake is automatically released
when the accelerator pedal is operated.
To prevent the vehicle from rolling back when
driving off, use the parking brake.
1. Shortly before driving off, pull and re‐
lease the switch.
The parking brake is engaged.
2. Apply the accelerator sufficiently to drive off.
Downhill gradients
On downward gradients, a vehicle combination
has tendency to snake at an earlier stage.
Before the downward gradient, shift down man‐
ually to the next-lowest gear and drive down‐
wards slowly.
Online Edition for Part no. 01402989787 - II/18
Towing a trailer
Trailer Stability Control
Principle
The system supports you to neutralise a trailer's
tendency to swing from side to side.
Trailer Stability Control detects snaking move‐
ments and promptly brakes the vehicle so that
road speeds fall to below the critical range and
the vehicle combination is stabilised.
General
If the power socket for the trailer is in use but no
trailer is attached, for example during use of a bi‐
cycle carrier with lighting, the system may be‐
come active in extreme driving situations.
Operating requirements
The system is operational from a speed of ap‐
proximately 65 km/h, approximately 40 mph,
when towing a trailer and with the trailer socket
in use.
System limits
The system is unable to intervene, or intervenes
too late, in the following situations for example:
▷ If a trailer veers instantly, for example on slip‐
pery or loose road surfaces.
▷ If a trailer with a high centre of gravity tips
over before a swinging motion is detected.
▷ If Dynamic Stability Control DSC is deactiva‐
ted or has malfunctioned.
DRIVING HINTS
297