2005 Audi A3 Repair Question
Whats wrong?- my car wont start, electrical system not working.
please can you help or advice
You may well have a faulty alternator, the new battery will only last a short while if it is not getting charged, get the battery bench charged to full charge and then have the alternator charge rate checked, it should be around 13.5 to 14.5 volts there abouts depending on the battery condition. Do not test by running engine and removing battery cable as this can induce a voltage spike that can destroy your ECU (main engine computer)
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