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    M55 inlet motor pin data

    Hi, have just got 15 codes on Ml320 cdi 09. in amongst these is reference to the m55 inlet motor. I have removed the motor to check the the flaps.All is free. Does anyone have the motor pin data? No. A642 150 03 94 Pierburg 4 pins Is there anything a must to check? Any advice would be greatly...
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