I'm having problems with my IP, it works when it wants to. Its affected my odometer, fuel, temp, back screen release, cd player and tach guages. The digital gauges work fine. A one shop said this my be an all day work to locate the problem, fuses and such, I've ckeck all fuses and they are fine. I'm reluctant to go back to him, since he did the front brakes and they squick. This is a BMW/Mercedes Specialist! Can I get some tips what to look for an ask the right questions? What is a reasonal price? I dont want to invest a fortune, I'm looking for a newer model C class.