Still could be. On my white E430, the brakes and cruise still worked, but the brake stop switch fixed the problem.

On my current burgundy E430, the brake stop switch cause the cruise and brake lights to not work.

In any event, it's a $19 part, and they fail frequently.

__________________
Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".