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    Mercedes GL-Class Forum, Mercedes GLS Forum problem with coil 4

    GL500, 2013 GL Class (X166) engine 278. 130000 km. The computer shows a problem with coil 4. I changed the coil, spark plug, injector. Programmed the control unit. The computer shows increased voltage on the coil, ignition error, short circuit in the coil. Checked all the wires - no short...


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