We have a 01 320 E class wagon, and the other day my wife drove it, she claims a light came on in the dash and said something about " brakes" and "visit workshop". I started it, drove it, and when I first started it it said something about no problems...its got 80k miles and have never done the brakes, MB did a brake flush 2/3 years ago and did not mention pads, they usually find something?