61 20 ... Threshold values for battery inspection of all battery (telephone except for telephone battery)
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2008 BMW 335xi, 2008 BMW 335i, 2008 BMW 328xi, 2008 BMW 328i, and 2007 BMW 335xi. However, it is still accessible from the selected car via links, so may be relevant.
Safety Instructions for handling vehicle battery.
Test step 1 - before charging the battery
BATTERY INSPECTION THRESHOLD VALUES (TEST STEP 1)
| Charge state (1) | Starting capability (2) | Test result | ||||||
| Not testable | Charge | |||||||
| less than 50 % (2) | Charge | |||||||
| more than 50 % | less than 75 % | Charge | ||||||
| more than 50 % | more than 75 % (3) | Charge | ||||||
| more than 80 % | more than 75 % | O.K. | ||||||
|
||||||||
Test step 2 - after charging the battery
BATTERY INSPECTION THRESHOLD VALUES (TEST STEP 2)
| Charge condition (1) | Starting capability (2) | Test result | ||||
| Not testable | Defective | |||||
| less than 50 % | less than 75 % | Charge | ||||
| more than 50 % | more than 75 % | Charge | ||||
| 3) Fully charge until charge state is more than 80 %. | ||||||
|
||||||
NOTE:
If battery was checked on the positive terminal in the engine compartment, repeat check directly on battery for sake of safety.