Mercedes-Benz E-Class 2010 Owner's Manual page 303

Tyre pressures
300
The applicable value for the maximum load on
the rear axle during trailer towing is stated on
the tyre pressure information label on the
inside of your vehicle's fuel filler flap.
The load condition "partially laden" or "fully
laden" is defined in the table by the differing
number of passengers and amount of lug-
gage. The actual number of seats may vary
from this – more information can be found on
the vehicle's registration document.
If no other data is stated, the tyre pressures
specified on the fuel filler flap apply for all
tyres approved for this vehicle.
If a tyre size precedes a tyre pressure, the tyre
pressure specification that follows is only
valid for that tyre size.
Instead of the complete tyre size, it may be
that only the rim diameter is stated, e.g.
R16.
Rim diameter : is part of the tyre size and
can be found on the tyre sidewall.
G
Risk of accident
Tyre pressure that is either too high or too low
has a negative effect on the vehicle's driving
safety, which could lead you to cause an acci-
dent. Therefore, you should regularly check
the pressure of all the tyres, particularly prior
to long trips, and correct the pressure as nec-
essary.
To test tyre pressure, use a suitable pressure
gauge. The outer appearance of a tyre does
not permit any reliable conclusion about the
tyre pressure.
G
Risk of accident
Do not fit anything else to the tyre valve other
than the standard valve cap. In particular, ret-
rofitted tyre pressure monitors which are
screwed on to the valve may overload it and
cause it to fail. Due to their design, the valve
is kept open continuously, which may lead to
air loss.
G Risk of accident
Should the tyre pressure drop repeatedly:
check the tyre for foreign bodies.
R
check whether the wheel is losing air or the
R
valve is leaking.
make sure that only a valve cap approved
R
by Mercedes-Benz has been fitted on the
tyre valve.