I have a 2003 CLK 430. After replacing the battery (big battery in trunk) I received a number of malfunction codes such as radio code, windows not going all the way up, anitlock brakes, and traction control. All have now been reset and appear to be working.

When I took the car to have it inspected (the next day and 16 miles after the battery replacement) the car failed its emissions control because many sensors were "not ready." According to the inspection tech you have to drive the car for a while to reset the sensors.

Does anyone have any idea how far the car must be driven before the sensors reset?

 

about 100 miles and you should drive highway and also youll want a cold start in the morning too. when you disconnect the battery you will loose the engine memory and windows sunroof and esp/bas. will need to be resynchd.

 

I appreciate the response. I've already resynched the windows, esp/bas, etc and have put about 200 miles on the car over several days about half of that on the highway with several cold starts in the morning. I just didn't want to go in for the emissions test prematurely. It sounds like I should be ready.