An audible signal sounds as a warning.›
Immediately reduce speed and avoid sudden steering and braking manoeu-
vres.
›
Stop the vehicle, turn the ignition off and check the tyres and their inflation
pressures » page 117.
›
Correct the tyre pressure if necessary or replace the affected wheel
» page 123 or use the repair kit » page 127.
›
Save the tyre pressure values in the system » page 91.
System fault
flashes for approximately 1 minute and remains lit - there may be a fault in
the tyre pressure monitoring system.
›
Stop the vehicle, turn the ignition off and start the engine again.
If the warning light flashes again after the engine has started, there is a
system error.
Seek help from a specialist garage.
Disconnecting the vehicle battery
If the vehicle's battery has been disconnected and reconnected, the warning
light comes on after switching on the ignition.
The warning light should go out after driving a short distance.
If, after a short drive, the indicator light does not go out, there is a system er-
ror.
Seek help from a specialist garage.
Other incidents
The following reasons can explain the warning light being illuminated.
▶ The vehicle is loaded on one side. Distribute loads as evenly as possible.
▶ The wheels of one axle are loaded more heavily (e.g. when towing a trailer or
when driving uphill or downhill).
▶ Snow chains are mounted.
▶ A wheel has been changed.
CAUTION
Under certain circumstances (e.g. sporty style of driving, wintry or unpaved
roads) the warning light in the instrument cluster can be delayed or does
not light up at all. Rear fog light
Read and observe
on page 34 first.
lights up - the rear fog light is switched on.
Exhaust inspection system
Read and observe
on page 34 first.
lights up - there is a fault in the emission control system. The system allows
the vehicle to run in emergency mode.
Seek help from a specialist garage.
Checking the engine electronics
Read and observe
on page 34 first.
lights up - there is a fault in the electronic engine management system. The
system allows the vehicle to run in emergency mode.
Seek help from a specialist garage.
Airbag system
Read and observe
on page 34 first.
System fault
lights up - there is a fault in the airbag system.
This also applies if the warning light does not come on when the ignition is
switched on.
The functionality of the airbag system is monitored automatically even if one
of the airbags is switched off.
One of the airbags or a belt tensioner has been disabled by the diagnostic
tool
lights up for approximately 4 seconds after the ignition is switched on and
then flashes for approximately 12 seconds.
The front passenger airbag has been disabled with the key switch
lights up for a few seconds when the ignition is switched on.
37Instruments and control lights
Note■If the vehicle remains outdoors for a long time in minus temperatures or in
direct sunlight, it can take several hours until the internal temperature of the
vehicle battery reaches a suitable temperature for proper operation of the
START STOP system.■
If the driver's seat belt is removed for more than approx. 30 seconds or the
driver's door is opened during stop mode, the engine will have to be started
manually.
■
No automatic engine shut-down takes place when a vehicle with automatic
transmission is moving at low speed (e.g. during a traffic jam) and remains sta-
tionary after pressing the brake pedal lightly. Automatic engine shutdown
takes place if you press the brake pedal down with more force.
■
For vehicles with automatic transmission there is no automatic engine shut-
down when the system detects a manoeuvring action due to a large steering
angle.
Manually deactivating/activating the system
Fig. 91
Button for the START-STOP sys-
tem
Deactivating/activating
›
Press the symbol button
» Fig. 91 .
When system is deactivated, the warning light in the button illuminates.
If the system is turned off, it will be automatically reactivated after turning the
ignition off and on.
Note
If the system is deactivated when the engine is turned off automatically, then
the automatic start process takes place.Brakes and parking
Introduction
This chapter contains information on the following subjects:
Information on braking
78
Handbrake
79
Parking
80WARNING■ Greater physical effort is required for braking when the engine is switch-
ed off – risk of accident!■
When braking in a vehicle with manual transmission, when the vehicle is
in gear and at low revs, the clutch pedal must be depressed. Otherwise, the
functionality of the brake system may be impaired – risk of accident!
■
When leaving the vehicle, never leave persons who might, for example,
release the handbrake or take the vehicle out of gear unattended in the ve-
hicle. The vehicle could then start to move – risk of accident!
■
Observe the recommendations on the new brake pads » page 83, New
brake pads .
CAUTION
Never let the brakes slip with light pressure on the pedal if braking is not nec-
essary. This causes the brakes to overheat and can also result in a longer brak-
ing distance and excessive wear.
Information on braking
Read and observe
and on page 78 first.
Wear-and-tear
The wear of the brake pads is dependent on the operating conditions and driv-
ing style.
The brake pads wear more quickly if a lot of journeys are completed in towns
and over short distances or if a very sporty style of driving is adopted.
Under these severe conditions , the thickness of the brake pads must also be
checked by a specialist garage between service intervals.
78Driving
