Auxiliary Battery Relay (K57/2) - Mercedes-Benz W211 Manual

Dual battery system
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Auxiliary Battery Relay (K57/2)

Auxiliary Battery Relay (K57/2)
Location: Below windshield wiper cowl plastic trim
Function:
• Controlled by N82
• De-energized during normal operation (N.O.)
• Energized to recharge G1/7
• Energized if engine running and system voltage low
• Connects G1/7 to electrical consumers
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