Warning/indicator
lamp
Possible causes/consequences and
M
Solutions
;
Engine diagnosis warning
lamp
The engine diagnosis yellow warning lamp lights up while the engine is
on.
A malfunction has occurred in the engine, the exhaust system or the
fuel system.
The emissions limit value may have been exceeded and the engine may
be running in emergency operation mode.
#
Have the vehicle checked as soon as possible at a qualified special‐
ist workshop.
Tyres
Warning/indicator
lamp
Possible causes/consequences and
M
Solutions
h
Tyre pressure monitoring
system warning lamp
flashes
The tyre pressure yellow monitor warning lamp (pressure loss / mal‐
function) flashes for roughly one minute and then lights up perma‐
nently.
The tyre pressure monitor is malfunctioning.
&
WARNING There is a risk of an accident if the tyre pressure
monitoring system is malfunctioning
If the tyre pressure monitoring system is malfunctioning, it is not
able to issue a warning if there is pressure loss in one or more of
the tyres.
Tyres with insufficient tyre pressure may, for example, affect the
vehicle's handling characteristics, steering and braking. ‑
#
Have the tyre pressure monitoring system checked at a quali‐
fied specialist workshop.
#
Visit a qualified specialist workshop.
h
Tyre pressure monitoring
system warning lamp
lights up
The tyre pressure monitor yellow warning lamp (pressure loss / mal‐
function) lights up.
The tyre pressure monitor has detected a tyre pressure loss in at least
one tyre.
&
WARNING Risk of an accident due to insufficient tyre pressure
Tyres with insufficient tyre pressure pose the following risks:
R
The tyres may burst, especially as the load and vehicle speed
increase.
R
The tyres may wear excessively and/or unevenly, which may
greatly impair tyre traction.
R
‑ The driving characteristics, steering and braking may be
greatly impaired.
You could then lose control of the vehicle.
#
Observe the recommended tyre pressures.
#
Adjust the tyre pressure if necessary.
390 Display messages and warning and indicator lamps
