Owners Manual

Display messages
Display messages on vehicles without steering wheel buttons
Display messages Possible causes/consequences and M Solutions
NO TPMS The NO message is displayed for 30 seconds. The TPMS message
is also displayed after 30 seconds.
The tire pressure monitor has malfunctioned.
X
Have the tire pressure monitor and the wheels checked at a
qualified specialist workshop.
NO TPMS The NO message is displayed for 30 seconds. The TPMS message
is also displayed after 30 seconds.
The tire pressure monitor is not receiving signals from one or more
wheels because:
R
a wheel has been replaced with the spare wheel without wheel
electronics.
R
the maximum temperature on one of the wheel electronics units
has been exceeded.
R
the wheel electronics are malfunctioning.
X
Have wheels with suitable wheel electronics units installed at a
qualified specialist workshop.
—— TPMS The message —— is displayed for 30 seconds. The TPMS message
is also displayed after 30 seconds.
The pressure is insufficient in one or more tires, or the pressures
of the individual tires differ significantly.
X
Check the tire pressure at the next opportunity and correct it if
necessary (Y page 288).
¯
DEF Chk
In addition, the yellow ; engine diagnosis indicator lamp and
the yellow å DEF indicator lamp light up and a warning tone
sounds.
The DEF reducing agent is contaminated, diluted or is not
compliant with ISO 22241.
After the message appears for the first time, and under normal
driving conditions, you can continue driving for approximately
50 miles (80 km). After this, a warning tone sequence sounds and
the engine can then only be started another 16 times.
X
Have the DEF tank cleaned and refilled at a qualified specialist
workshop as soon as possible.
Troubleshooting
201
Practical advice
Z