Charging circuit for Mercedes-Benz GLK-class X204 facelift (2012-2015)

1.8L TURBO 2.1L TURBO DIESEL 3.5L 1.8L TURBO 3.5L 2.1L TURBO DIESEL ADDITIONAL BATTERY ADDITIONAL BATTERY RELAY CIRCUIT 30 ADDITIONAL FUSE ALTERNATOR BATTERY SENSOR BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN C H CAN C L COMPUTER DATA LINES SYSTEM DECOUPLING RELAY FRONT ELECTRICAL PREFUSE BOX FRONT SAM CONTROL UNIT W/ FUSE AND RELAY MODULE FUNCTION ADDITIONAL BATTERY RELAY FUSE FUSE 150 FUSE 159 GLOW OUTPUT STAGE GRY/YEL WIRE INSTRUMENT CLUSTER LIN ME-SFI (ME) CONTROL MODULE MULTI-FUNCTION DISPLAY ON-BOARD ELECTRICAL SYSTEM BATTERY PYROFUSE REAR SAM CONTROL UNIT W/ FUSE AND RELAY MODULE CIRCUIT 30 FUSE REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE RED WIRE RED/BLU WIRE STARTER TERMINAL BLOCK (CIRCUIT 30) W/ ECO START/ STOP FUNCTION W/O ECO START/ STOP FUNCTION