3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
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My wife has been complaining of her battery light coming on intermittently on her 2000 323I. I replaced the battery as it was leaking slighly and seven years old. I have the service manual to help in troubleshooting the charging system. I was wondering if the AC compressor may be the cause not the alternator or voltage reg.
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Battery light at highway speed with AC on 
Linear Mode
