A BMW E60 535d came in with a current leak. After turning the ignition on the driver could see a message on his iDrive, Battery current consumption to high! The vehicle was inspected with our oscilloscope and high precise current clamp. After a few hours of searching the faulty component could be found. The MULF( Bluetooth telephone module) was the cause of the current leakage. After contacting the owner he decided to remove the module instead of replacing it. To prevent problems in the future Karreman Engineering recoded the vehicle without MULF module. Besides the current leak investigation, the EGR was turned off at Another happy customer.

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