BMW 540i from ROCKVILLE, MD 20853

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Complaints / Requests:

  • ABS light comes on intermittently.
  • Check engine light is on.

Diagnosis / Work done:

  • Tested vehicle, no codes were present at this time.
  • Tested DSC system and road tested vehicle, could not duplicate the problem.
  • When testing vehicle under electrical load, noticed alternator charing current was 82 Amps at rpm.
  • Replaced Alternator and retested.
  • Alternator is charging 117 Amps under load.
  • Tested vehicle,code (140)8C was present.
  • Tested thermostat, it was not opening on time.
  • Replaced thermostat assembly and retested.
  • Thermostat is operating within specification.
My Car characteristics
Make BMW
Model 540i
Year 2000
Year performed 2016
Month performed Febuary

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