*REPAIR SERVICE* 11-12 MERCEDES BENZ C300 GLK350 ECU ECM ENGINE CONTROL COMPUTER Featured Products Some of those tests/repairs are

Some of those tests/repairs are listed below: Relays witch typically fail in these units have been replaced

You will need to swap fuses and relays as necessary from your fuse box into this unit prior to install

Use this label and the box we send your new unit in to send it back to us for money back

You more than likely have a wiring issue that has to be looked at by a certified tech

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*REPAIR SERVICE* 11-12 MERCEDES BENZ C300 GLK350 ECU ECM ENGINE CONTROL COMPUTER Featured Products Some of those tests/repairs areRepair & Return Process The Repair and return process is pretty simple and helps you avoid paying the high cost of a new ECU through your dealer. Please note this repair service is for one issue "only" Coil Injector issues (Make sure you have replaced your coils injectors plugs and have checked the wiring for issues prior to purchasing this service) If your ECU has the fan on all the time but you have no communication with the ecu and a no start, you