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MHEV battery issues

DRH56
in BMW X3 Series Forum

Featured Replies

Hi Folks - new to this forum so please bear with me! I'm not sure that the behaviour of my X3 MHEV is to be expected. Under the BMW CarData Archive I'm getting some very strange readings of the battery %. It goes from 0% to 63% (with an average of 34%) over a 10 day period.

Issues: (as seen on "Energy Flow" Display)

1 Appears to not be holding charge. Display goes from 1> 3 bars and back to 1 within a mile of driving
2 Rarely freewheels, mainly does regeneration braking
3 When freewheeling display mainly shows vehicle not charging with engine "on" rather than "Ready"

Is this "normal" behaviour? In other words - is the MHEV "blurb" just a marketing tool with little real world benefit?!

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    • Author

    Just back from two days at the BMW dealer looking at this. They tell me that it's just a small battery and BMW techs at Head Office say this is normal behaviour. So, I'm guessing that it's really little more than a marketing tool that only has a minor impact on the vehicle's behaviour

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