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Home >> BMW >> 1997 >> 740i >> Repair and Diagnosis >> Electrical >> Charging Systems >> ENGINE ELECTRICAL SYSTEM - REPAIR INSTRUCTIONS - 740i & 740iL >> Switches and relays >> 12 63 520 Replacing master relay (M51, M52, M60, M62) >> Notes on troubleshooting:

Notes on troubleshooting:

If the starter engine turns the engine when switched on but the engine fails to fire, check the engine fuses (2). If these fuses are defective, replace all fuses together with the bracket.

The cause for fuses melting should be sought for. For additional instructions, refer to FAULT MEMORY INTERROGATION with the DIS-Tester.

Fig 1: Identifying Engine Fuse Box
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