Fig. 131 The front left of the bumper: connection for engine preheating â‘¡
First read and observe the introductory information and safety warnings In engine preheating mode, the engine coolant is heated slowly using a heating element while the vehicle is stationary. To do so, the cables supplied with the vehicle must be connected to a 230-volt socket or a 115-volt socket, e.g. in a garage. The engine will reach its operating temperature much more quickly if the vehicle is switched on when the coolant has been preheated. This reduces fuel consumption and exhaust emissions during the warm-up phase.
Preheating the engine can take up to 3 hours depending on the outside temperature   .
Connecting the engine preheating system
WARNING
Incorrect use of the engine preheating system can cause short circuits, electric shocks, fire, or severe and fatal injuries.WARNING
The use of unsuitable or damaged sockets and mains cables, and failure to adhere to general safety procedures, can lead to short circuits, accidents, severe injuries and death.It is sufficient to test the residual current circuit breaker once a month if the engine preheating system is only used occasionally. If it is used regularly, have it checked once a week.
Assembly overview - fuel delivery unit/fuel gauge sender, vehicles with
four-wheel drive
1 -
Fuel pump control unit -J538-
Check with → Vehicle
diagnostic tester
Removing and installing
→ Chapter
2 -
Electrical connector
For fuel pump control unit -J538- ...
Cleaning cloth seat covers, fabric trim and Alcantara® upholstery
First read and observe the introductory information
and safety warnings Cleaning upholstery on seat cushions without seat
heating, seats that are not electrically adjustable, and seats that do not contain
airbag components
Airbag-related components and electrical connectors may be installe ...
Removing and installing parking aid control unit -J446-, left-hand drive
vehicle
Note
When renewing the control unit, select
Renew function for the respective control unit in
Guided fault finding or
Guided functions mode
→ Vehicle
diagnostic tester.
Removing
â ...