Indicator Lamp - Mercedes-Benz Sprinter Operator's Manual

Troubleshooting
190
Problem
! The yellow ABS
indicator lamp is
lit while the
engine is
running.
å The yellow DEF

indicator lamp

lights up while
the engine is
running.
h The yellow ESP
warning lamp is
lit while the
engine is
running.
h The yellow ESP
warning lamp is
lit while the
engine is
running.
Possible causes/consequences and M Solutions
G
Warning!
ABS has been deactivated due to undervoltage. It is possible that
the battery is not being charged.
The brake system continues to function normally, but without
electronic support. The wheels could therefore lock, e.g. if the
brakes are applied with maximum force.
X
Drive on with care.
X
Visit a qualified specialist workshop immediately.
The exhaust gas aftertreatment is malfunctioning or the current
Diesel Exhaust Fluid (DEF) supply is limiting the vehicle range.
X
Observe the messages in the display (
G
®
Warning!
®
ESP has been deactivated due to a malfunction. This also
deactivates cruise control.
The vehicle's stability is no longer automatically regulated at an
early stage. Engine power output may be reduced.
X
On vehicles with steering wheel buttons, also observe the
messages in the display (
X
Drive on with care.
X
Consult a qualified specialist workshop as soon as possible.
G
®
Warning!
®
ESP has been deactivated due to undervoltage. This also
deactivates cruise control.
It is possible that the battery is not being charged.
The vehicle's stability is no longer automatically regulated at an
early stage. Engine power output may be reduced.
X
Drive on with care.
X
Consult a qualified specialist workshop as soon as possible.
Y page 199).
Y page 197).