A few months ago I made a left turn through a deep puddle, and since I guess I was going a little too fast, the water splashed way up. (The car doesn't have an underbody shield.) As soon as the water hit, the two idiot lights came on (the car has traction control, so there are two lights, ASR and BAS). I have continued to drive the car, and limp mode engaged only twice, both times after a hard stop downhill - restarted the car and all was well. Thinking the easiest, cheapist fix was the brake light switch, I changed that but it didn't solve the problem (the old part was dated 1993, so I can rationalize this as preventive maintenance). Next I am going to check the wires from the ABS sensors and clean the wheel sensors. Any thoughts on what the water might have contacted to trigger the dash lights - I find it hard to believe that this was just a coincidence.

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87 300e (white/black; amg body kit)
88 300ce (red/cream; amg body kit)
93 300ce cabrio (white/blue/blue top)
93 300ce cabrio (black/grey/black top)
98 ml 320 (totaled @ 137,000 miles)
99 clk320 (black/grey/black top)