Fuse and relay box, as-built configuration - GF54.15-P-0800FQ

MODEL 218 

Fig 1: Identifying Fuse And Relay Box Components - Shown On Model 218.3

Courtesy of MERCEDES-BENZ USA

Shows model 218.3 

The fuse box (for engine 276 as of 01.09.2014 or with engine 274) includes a 5 A fuse, which protects the connection between the additional battery (G1/7) and the electronic ignition lock control unit (N73) and the front SAM control unit.

For code (B03) ECO start/stop function or with engine 276 up to 31.08.2014, shown on model 218.3 

Fig 2: Identifying Fuse And Relay Box Components - Shown On Model 218.3

Courtesy of MERCEDES-BENZ USA

The additional battery circuit 30 fuse protects the connection between the front SAM control unit and the ECO start/stop function additional battery relay with 7.5 A.

With engine 157, 276, 278 

Fig 3: Identifying Coolant Circulation Pump Relay

Courtesy of MERCEDES-BENZ USA

With code (489) AIRmatic (air suspension with continuous adjustment damping) or code (488) Steel/air suspension 

Fig 4: Identifying AIRMATIC Relay

Courtesy of MERCEDES-BENZ USA