Thanks for the instructions! Bought the bulb at my local Volvo dealer for $8.82 + tax. Installed it in less than 30 minutes.
Note that the bulb part number changed from 1363149 to 30710781.

Hi, I replaced the heater core in my '98 S70 over a year ago and have had no leaks or problems until this afternoon. About 3 miles into my drive home from work, something under the dash exploded. It sounded as if a gasket gave out and the car's cabin suddenly filled with a thick steam. After droppin...