How do you fix right front dipped beam failure on a Saab 9-3?

As you probably know, it is not as easy as just replacing the bulb. Surprisingly complex! I decided the easiest option was to bring it to the dealer and for £10 they replace it.

I find that the right dipped beam keeps failing every 3 to 4 months, which is very annoying. Maybe it is just this car, but I was wondering if anyone else has the same problem...