This vehicle Mercedes B200 w245 came with intermittent problem. After warm up the engine was stalling and completely shutting down. After diagnostic and data verification we determined that the ECU (Engine Control Unit) is defective. Thanks to our engineering equipment and knowledge, we can offer substitution of defective part with a new or used unit or even in some cases we repair faulty ECUs. In this case (because the fault was not a common problem) we installed and programmed to the vehicle a used ECU which reduced the cost of the repair.