Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2011128I CONVERTIBLE (E88) L6-3.0L (N51)REPAIR AND DIAGNOSISSPECIFICATIONSELECTRICAL SPECIFICATIONSBATTERY
2011 BMW 128i Convertible (E88) L6-3.0L (N51)
Battery
2011 BMW 128i Convertible (E88) L6-3.0L (N51)SECTION Battery
Parasitic Draw
This article has been updated by Technical Service Bulletin 61 08 00 dated January 2010.
This TSB has been updated several times, but retains the same number.
In general, closed circuit current consistently over 50mA must be investigated.
Depending on the vehicle's equipment, closed circuit current by model is approximately as follows:
E82 / E88
with TCU 40 milliamps after 60-70 minutes
without TCU 40 milliamps after 30 minutes
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.