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Home >> BMW >> 2012 >> 535i GT >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Engine Performance - Functional Description -- F07 >> Engine Performance - Functional Description >> Automatic Engine Start-Stop Function >> Engine compartment lid contact switch
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Engine compartment lid contact switch

The engine compartment lid contact switch is included in the calculations of the automatic engine start-stop as an input signal. If the engine compartment lid is open, the engine is not started or stopped by the automatic engine start-stop.

The following graphic shows the engine compartment lid contact switch using the example of F01.

Fig 1: Engine Compartment Lid Contact Switch
G09872189Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
1 Engine compartment lid catch front left
2 Engine compartment lid contact switch
3 two-pin plug connection
4 Plug connection for pyrotechnic component (scope pedestrian protection)
NOTE: Service position of the engine compartment lid contact switch
Depending on the series and the version, there is the engine compartment lid contact switch with service position. In the service position, the engine compartment lid contact switch simulates a closed engine compartment lid. An automatic engine start can therefore be carried out by the automatic engine start-stop in the service position of the engine compartment lid contact switch.

The following graphic shows a simplified version of a engine compartment lid contact switch with service position. Pull up to engage the service position of the engine compartment lid contact switch.

Fig 2: Engine Compartment Lid Contact Switch
G09872190Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
1 Engine compartment lid contact switch
2 Electrical connection