Capacity, Voltage, and Size of Accumulators for the BMW 6-Series.

6 Gran Coupe (F06) 2011-2020

Modification Terminal Polarity Voltage Capacity Recommended size
640 i xDrive Type EN right + 12 V 95 Ah 353 mm (L) - 175 mm (W) - 190 mm (H)
640 i xDrive Type 1 right + 12 V 95 Ah 353 mm (L) - 175 mm (W) - 190 mm (H)
650 i xDrive Type 1 right + 12 V 105 Ah 394 mm (L) - 175 mm (W) - 190 mm (H)
650 i xDrive Type 1 right + 12 V 95 Ah 353 mm (L) - 175 mm (W) - 190 mm (H)

6 Convertible (F12) 2011-2020

Modification Terminal Polarity Voltage Capacity Recommended size
640 d xDrive Type 1 right + 12 V 225 Ah 518 mm (L) - 274 mm (W) - 242 mm (H)
650 i Type 1 right + 12 V 170 Ah 513 mm (L) - 222 mm (W) - 223 mm (H)
650 i Type 1 right + 12 V 225 Ah 518 mm (L) - 274 mm (W) - 242 mm (H)

6 Convertible (E64) 2004-2010

Modification Terminal Polarity Voltage Capacity Recommended size
630 i Type EN right + 12 V 95 Ah 353 mm (L) - 175 mm (W) - 190 mm (H)
630 i Type 1 right + 12 V 95 Ah 353 mm (L) - 175 mm (W) - 190 mm (H)

6 (E24) 1975-1989

Modification Terminal Polarity Voltage Capacity Recommended size
628 CSi Type 1 right + 12 V 74 Ah 278 mm (L) - 175 mm (W) - 190 mm (H)
628 CSi Type 1 right + 12 V 120 Ah 513 mm (L) - 188 mm (W) - 223 mm (H)
628 CSi Type 1 right + 12 V 180 Ah 513 mm (L) - 222 mm (W) - 223 mm (H)
628 CSi Type 1 right + 12 V 70 Ah 278 mm (L) - 175 mm (W) - 190 mm (H)
628 CSi Type 1 right + 12 V 140 Ah 513 mm (L) - 188 mm (W) - 223 mm (H)
628 CSi Type 1 right + 12 V 77 Ah 278 mm (L) - 175 mm (W) - 190 mm (H)
635 CSi Type 1 right + 12 V 77 Ah 278 mm (L) - 175 mm (W) - 190 mm (H)
635 CSi Type 1 right + 12 V 70 Ah 278 mm (L) - 175 mm (W) - 190 mm (H)
635 CSi Type 1 right + 12 V 74 Ah 278 mm (L) - 175 mm (W) - 190 mm (H)
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