● 12-volt vehicle batteries should only be
charged in well-ventilated spaces.
● Never charge a 12-volt vehicle battery which
is frozen or has been frozen! Note that dis-
charged 12-volt vehicle batteries can already
freeze at temperatures of around 0°C.
● The 12-volt vehicle battery must be replaced
if it has ever frozen.
● Incorrectly connected cables can cause a
short circuit. First connect the positive cable
and then the negative cable.
NOTICE
● Never connect or disconnect the 12-volt vehi-
cle battery if the ignition is switched on or the
engine is running! Do not use batteries that do
not match the technical specifications of the
vehicle; otherwise, the electrical system or
electronic components of the vehicle may be
damaged, resulting in other failures, such as
automatic engine start-stop system failure.
● If accessories that supply electric power are
connected to the 12-volt socket to charge the
12-volt vehicle battery, this can damage the
electrical system and the electronic compo-
nents and lead to electrical malfunctions.
Dispose of the 12-volt vehicle battery in ac-
cordance with the relevant regulations. 12-
volt vehicle batteries may contain toxic substan-
ces such as sulphuric acid and lead.
Electrolyte can pollute the environment!
Clean up any service fluid leakages and dis-
pose of them properly according to relevant reg-
ulations.
Troubleshooting
Please refer to and on page 164 and
and at the start of the chapter on page 178.
12-volt vehicle battery
The warning light lights up red.
The engine failed. Do not charge the 12-volt ve-
hicle battery when the engine is running.
Switch off any electrical consumers that are not
required. Seek expert assistance.
The start/ stop system cannot start the en-
gine.
→
page 99
Wheels and tyres
Tyre monitoring system
Introduction
This chapter contains information on the follow-
ing subjects:
– Tyre Pressure Loss Indicator
182
–
Troubleshooting for Tyre Pressure Loss
Indicator
183
The tyre pressure monitoring system
alerts the driver when the tyre pressure is
too low.
This vehicle is equipped with two different tyre
pressure monitoring systems, the distinguishing
characteristics are as follows:
Indirect tyre pressure monitoring
– Different parameters (especially rolling cir-
cumference) of all wheels are monitored by
ABS sensors (indirect measurement).
WARNING
The intelligent technology of tyre pressure
monitoring system cannot exceed the specified
limit, and can only work within the limits of the
system. Improper wheel and tyre handling can
result in a sudden loss of tyre pressure, cracked
tread, or even a blown tyre!
● Check the tyre pressure regularly and always
maintain the specified pressure.→ page 188
If the tyre pressure is too low, it is possible
that the tyre temperature will increase to
such an extent when driving that the tread
peels off and the tyre bursts.
● The cold pressure of the tyre must conform
to the value listed on the tyre pressure la-
bel.
→
page 188
●
Check the tyre pressure regularly when the
tyres are cold and adjust the tyre cold pres-
sure according to the recommended tyre
pressure of the vehicle you pur-
chase.
→
page 188
●
Check the tyres regularly for damage and
wear.
Wheels and tyres
181
182.5C1.TRO.74
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