Remove/install additional battery relay - AR54.15-P-2000CW

MODEL 204 (except 204.9) with CODE B03 (ECO start/stop function) 

Fig 1: Identifying Battery Relay Remove/Install Components - Shown On Model 204.0

Courtesy of MERCEDES-BENZ USA

Shown on model 204.0 with code (411) 6-speed manual transmission 

	Remove/install
1	Disconnect ground line for on-board electrical system battery (G1)		AR54.10-P-0003CW
2	Detach ground line from additional battery for ECO start/stop function (G113)	Only on model 204.0/2/3	AR54.10-P-0007CW
3	Unlock catch hook (4) and open cover (5)	With code (411) 6-speed manual transmission
4	Remove relay for additional battery of ECO start/stop function (K114) from foam material	With code (411) 6-speed manual transmission
5	Unscrew nuts (6) and remove electrical line (7)	MODEL 204 (except 204.9) with CODE 411 (6-speed manual transmission) with CODE B03 (ECO start/stop function) MODEL 204 (except 204.9) with CODE 423 (Automatic five-speed transmission (NAG)) with CODE 427 (7-speed automatic transmission) with CODE B03 (ECO start/stop function)
		Nut, positive line to relay for additional battery	*BA54.15-P-1008-01A
6	Unscrew nut (8) and remove electrical lines (9)	MODEL 204 (except 204.9) with CODE 411 (6-speed manual transmission) with CODE B03 (ECO start/stop function) MODEL 204 (except 204.9) with CODE 423 (Automatic five-speed transmission (NAG)) with CODE 427 (7-speed automatic transmission) with CODE B03 (ECO start/stop function)
		Nut, positive line to relay for additional battery	*BA54.15-P-1008-01A
7	Disconnect electrical connector (10)
8	Remove mounting screws from ECO start/stop function (K114) additional battery relay	With code (423) 5-speed automatic transmission or code (427) 7-speed automatic transmission
9	Remove relay for additional battery of ECO start/stop function (K114)
10	Install in the reverse order