Owners Manual

Symbol messages on vehicles with steering wheel buttons
Display messages Possible causes/consequences and M Solutions
å
XX starts remaining
The Diesel Exhaust Fluid (DEF) supply has dropped below the
0.8 US gal (30 l) reserve mark.
After the message appears for the first time, the remaining DEF
supply will last for approximately 1000 miles (1600 km) and the
engine can then only be started another 16 times.
The number of remaining engine starts XX (16 to 0) is shown in the
message every time the engine is started. Once the number 0 is
shown, the yellow ; engine diagnosis indicator lamp lights up
and the engine can no longer be started.
X
Add at least 2.0 US gal (7.6 l) of DEF (Y page 143).
After refilling, the system check takes approximately
20 seconds. The display message then disappears.
å
XX starts remaining
In addition, the yellow ; engine diagnosis indicator lamp lights
up.
After the message appears for the first time, the engine can only
be started another 16 times.
The number of remaining engine starts XX (16 to 0) is shown in the
message every time the engine is started. Once the number 0 is
shown, the engine can no longer be started.
The DEF reducing agent is contaminated, diluted or is not
compliant with ISO 22241.
X
Have the DEF tank cleaned and refilled at a qualified specialist
workshop as soon as possible.
The exhaust gas aftertreatment system is defective or an
emissions-relevant malfunction has occurred. The defect or
malfunction can result in damage to the exhaust gas
aftertreatment system.
X
Visit a qualified specialist workshop immediately.
:
Visit workshop
G
Risk of accident
ASR has been deactivated due to a malfunction.
The engine power output may then be lower.
X
Drive on carefully.
X
Visit a qualified specialist workshop immediately.
206
Troubleshooting
Practical advice