My 2000 Mercedes Benz ML 320 with 150000 miles. Couple weeks ago, after parking car in the garage, I could not start the car or crank the engine. I replaced NEW battery, NEW starter, NEW brake light switch, checked all the fuses and relay fuses are working. Plus, I checked all the connection cables to starter are working fine too. But car is still not crank up. When I am turning car key to start position, I only heard the loud CLICK but the engine could not crank up. Would you please help me to tell me what is wrong with my car? Thank you for your help!