Problems with the engine
Problem | Possible causes/consequences and Solutions |
The engine does not start. The starter motor can be heard. | • There is a malfunction in the engine electronics. • There is a malfunction in the fuel supply.
Before attempting to start
the engine again, turn the SmartKey in the ignition back to position 0
or press the Start/Stop button repeatedly until all indicator lamps in
the instrument cluster go out. |
The engine does not start. You cannot hear the starter motor. | The on-board voltage is too low because the battery is too weak or
discharged. Jump-start
the vehicle. |
The starter motor was exposed to a thermal load that was too high.
Allow the starter motor to
cool down for approximately two minutes. |
|
The engine is not running smoothly and is misfiring. | There is a malfunction in the engine electronics or a mechanical
component of the engine management system.
Only depress the
accelerator pedal slightly. |
The coolant temperature gauge shows a value above 248 °F (120 °C). | The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
Stop as soon as possible
and allow the engine and the coolant to cool down. |
See also:
115 V power socket
WARNING
The 115V AC socket operates at high voltage. Use the 115V AC socket in the vehicle
with the same caution and prudence that you exercise when using power outlets at
home. Keep any flu ...
Underinflated tires
WARNING
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adversely
affect handling and fuel economy, and ar ...
Transfer case
This section is only valid for vehicles with 4- wheel drive (4MATIC). Power is
always transmitted to both axles.
Performance tests may only be carried out on a 2-axle dynamometer. The brake
sy ...