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Old 01-15-2013, 05:28 PM
pleiades pleiades is offline
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Location: Oregon
 
Join Date: Jun 2010
Posts: 2,222
Mein Auto: '99 528i, M52TU w/stick
Autozone should be able to read the generic fault codes (for free), which might be enough. BMW-specific codes will require a trip to the dealer or a BMW specialist shop.

Difficulty starting the car could be due to a failing sensor (among many things). Mass air-flow sensor (MAF), cam position sensor (CPS), crankshaft position sensor (CKP). It could be a bad ignition coil. If it's a failing MAF, sometimes the car will run great if you unplug that sensor. (That's basically the diagnostic test right there.)

The traction control system could be out simply because of a failing wheel sensor, but no doubt the repair shops will want to replace everything and laugh all the way to the bank. Someone else will have to tell you how to diagnose this.

You might want to start separate threads for each of the problems your car has now.

The battery light should go out on its own I think (not 100% certain), unless the charging system is still faulty. This topic could get somewhat involved. I understand from your first post that the car now has an entirely new alternator. Did you obtain the new unit from the dealer and install exactly the same brand (Bosch or Valeo) and amp rating (should be 120A I think)?
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