Engine, Brakes, Transmission - SMART forfour Owner's Manual

Engine, brakes, transmission

186
Engine, brakes, transmission
Problem
Engine will not start
using the key.
Engine will not start.
Starter motor cannot be
heard.
Engine will not start.
Starter motor can be
heard.
Engine will not start.
Starter motor can be
heard.
The fuel tank gauge is
at zero.
Engine is not running
smoothly and is mis-
firing.
Possible causes/consequences and M Solutions
Steering lock is manually locked.
X
Remove the key from the ignition lock and then reinsert it into
the ignition lock.
X
Turn the key.
X
Turn the steering wheel left and right.
On-board voltage is too low.
X
Switch off electrical consumers that are not required.
X
Start the engine.
The engine still does 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 2 minutes.
X
Start the engine.
The engine still does not start.
X
Consult a qualified specialist workshop.
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.
Fuel tank is empty.
X
Refuel the vehicle.
Malfunction in the engine electronics or a mechanical component.
X
Only depress the accelerator pedal slightly.
X
Consult a qualified specialist workshop immediately.