Carefully pry the plastic trim around the switch off, then you will need a 10mm socket to remove the door handle bolt. The switch will come out but sliding it forward it towards the front. Remove a philips screw, the switch is snapped together. Be careful of the ball bearings, don't lose them!!

Good luck!

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Peter Chu aka PIKACHU
08 C300 Premium Pkg, MM Pkg, Sport Pkg, Keyless Go
86 300E soon to be E36 with Euro Headlights
400E front & rear brake upgrade
16" CLK wheels with Michelin MXV4 plus Green X