Using the 12 V socket in the rear passenger compartment
Requirements:
Only connect devices up to a maximum of 180 watts (15 A).
Pull cover 
out by its top handle edge.
out by its top handle edge. Lift up the cap on socket 
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. Vehicles with luxury individual rear seats: the 12 V socket is in the stowage compartment in the centre console.
Lift up the cap on socket .
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