Recently I've been experiencing problems starting my ML. I had the battery checked and it's OK. I took it to the MBZ dealer. After spending $890 replacing several sensors, the problem continues. Now they tell me the problem is with the "electronic" key. I was not aware the ML320 had an "electronic" key sensor (like my E320). They want an additonla $145 for a new key.

I am a bit suspicious. Your web site is God-sent. What can you tell me about their recommendation?

Thanks,
Jav