Hi-
About a month or so ago, I noticed that the reverse lights on my 240D weren't working. When the problem first started happening, I could make them work if I held down the shifter slightly (towards the neutral position), but that hasn't been doing the trick. Is there a reverse light switch? Could the switch be dirty?
Does anyone have any suggestions? Any help would be much appreciated...

P.S. The car is an automatic, and the shift bushings were replaced last year.