Safety measures when working on vehicles with auxiliary heating

Information 

• It is important to ensure that the auxiliary heating timer is deactivated during a workshop visit and while working on the vehicle in order to prevent the auxiliary heating system from coming on unintentionally  .
• The preset timer must be activated again following repair work  .
• The auxiliary heating system must not be on or switched on in areas in which there is a danger of fire and risk of explosion  .
• The auxiliary heating system must not be on or switched on in enclosed spaces without an exhaust extraction system  .
• Always comply with the applicable safety regulations when working on the fuel system  .
• The engine must not be started if components of the fuel system (e.g. metering pump, fuel line, fuel supply indicator) are removed or open  .
• Before starting repair work on the auxiliary heating system: Relieve overpressure in the cooling system by carefully opening the catch on the coolant reservoir  .
• The function of the auxiliary heating system must be checked following repair work on the auxiliary heating system or fuel system  .
• When repair work is complete, perform on-board diagnosis of the auxiliary heating system using the vehicle diagnostic tester  .