If the HID head lights are flickering or have failed, it may be caused by the window washer fluid leaking onto the HID modules. The washer fluid check valve for the head light washers develops the leak and drips onto the modules mounted under the head light assemblies.
Car Problem Reports
Saab 9-5 Flickering or Failure of the HID Lamps
Saab 9-5 Problem
Average Mileage: 87,384 mi (35,000 mi - 149,576 mi)