BAS light on 1998 E320: Where's the darn stop lamp switch?

[Maruzo]

Hi all:

The BAS light on my car stays on after the car's started.

I've found that if i press down on the brake and then start up the car, the BAS doesn't light up. But as soon as i let go the brake, the light pops right back.

I've decided to replace the stop lamp switch. But after opening up the dash cover on my e320, I can't find any brake switch behind the brake pad. Does anyone know where exactly it is?

I've managed to connect an Actron CP9135 OBD II auto scanner to my car so i can read out the codes. The scanner reads: "Pass No Codes Returned". I'm assuming that means there aren't any significant sensor malfunctions that might cause the BAS light to turn on. But i'm not very sure.

Any ideas?