SMART Forfour 2015 - Engine, brakes, transmission

Problem Possible causes/consequences and M Solutions
× Indicator lamp on
the overhead control
unit lights up.
The front-passenger front airbag is enabled (Y page
33). The air-
bag system is operating correctly.
X
Do not use a rearward-facing child restraint system on front-
passenger seat.
× Overhead control
unit indicator lamp
does not light up if the
front-passenger front
airbag has been acti-
vated manually.
Malfunction in the airbag system.
X
Do not allow passengers to travel on the front-passenger seat.
X
Consult a qualified specialist workshop.
Engine, brakes, transmission
Problem Possible causes/consequences and M Solutions
Engine will not start
using the key.
Steering lock is manually locked.
X
Remove key from ignition lock and then reinsert it into the
ignition lock.
X
Turn the key.
X
Turn steering wheel left and right.
Engine will not start.
Starter motor
cannot be
heard.
On-board voltage is too low.
X
Switch off electrical consumers that are not required.
X
Start the engine.
The engine still will not start.
X
Jump-start the vehicle.
The engine will not start despite jump-starting.
X
Consult a qualified specialist workshop.
Starter motor has overheated.
X
Let the starter motor cool down for two minutes.
X
Start the engine.
The engine still will not start.
X
Consult a qualified specialist workshop.
Engine will not start.
Starter motor can be
heard.
Engine electronics or fuel delivery system is malfunctioning.
X
Switch off the engine.
X
Start the engine.
Lengthy and frequent starting attempts will drain the battery.
The engine will not start after several attempts.
X
Consult a qualified specialist workshop.
164
Engine, brakes, transmission
>> Practical advice.