BMW X5 Owners & Service Manuals

BMW X5: Replacing Battery Negative Lead

WARNING: Observe safety instructions for handling vehicle battery. Follow instructions for disconnecting and connecting battery.

IMPORTANT: Do not under any circumstances use force to pull/lever off Intelligent Battery Sensor (IBS).

Necessary preliminary tasks:

Release screws (1).

Remove battery cover (2) upwards.

Battery
Fig. 149: Identifying Battery Cover

Loosen nut (1).

Tightening torque.

Remove battery negative lead with IBS.

Disconnect plug connection (2).

Unscrew nut (3).

Tightening torque.

Battery
Fig. 150: Identifying Plug Connection

THRESHOLD VALUES FOR BATTERY INSPECTION OF ALL BATTERY (TELEPHONE EXCEPT FOR TELEPHONE BATTERY)

Safety instructions for handling vehicle battery.

Test step 1 - before charging the battery

THRESHOLD VALUES FOR BATTERY INSPECTION - BEFORE CHARGING BATTERY

Battery

(1) Charge condition and starting power must always be evaluated together
(2) When test charging for more than 5 hours, use charger Gossen CG 32 or Siemens / Gossen VB 801
(3) Fully charge until charge state is more than 80 %.

Test step 2 - after charging the battery

THRESHOLD VALUES FOR BATTERY INSPECTION - AFTER CHARGING BATTERY

Battery

(1) Charge condition and starting power must always be evaluated together
(2) When test charging for more than 5 hours, use charger Gossen CG 32 or Siemens / Gossen VB 801

NOTE: If battery was checked on the positive terminal in the engine compartment, repeat check directly on battery for sake of safety.

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