Problems with the seat heating
The seat heating has switched off prematurely or cannot be switched on. The vehicle's electrical system voltage is too low because too many electrical consumers are switched on.
•► Switch off electrical consumers which you do not need, such as the rear window defroster or interior lighting.
See also:
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Problems with fuel and the fuel tank
Problem
Possible causes/consequences and
Solutions
Fuel is leaking from the vehicle.
Risk of explosion or fireThe fuel line or the fuel tank is
defective.
Turn the ...
High outside temperatures
If DEF heats up to over 122 °F (50 °C ) for
extended periods, e.g. as a result of direct
sunlight on the DEF reservoir, DEF can
decompose. Ammonia vapors develop as a
result.
WARNING
When o ...