1With Indicator Light: Different light sources and flashing times represent different situations, making it easier to identify the problem, greatly improving the time efficiency. 2 Material: The Ecu unlock Immo tool exterior is made of preferred Abs material, which is oil resistant and rust resistant, can be used indefinitely, and has a long life. 3Strong Compatibility: Through extensive testing, Ecu unlock Immo tool is suitable for a variety of models under specific brands, please confirm the information of your vehicle before purchasing. 4Test on Drives: 0281011XXX, for K Line 0281011145 replacement for B5 2.0 Tdi mechanical igniton switch, replacement for A3 1.9Tdi 2004 0281011364, replacement for A4 2.0 Tdi 2008 0281012113, etc. 5Convenient Operation: All you need to do is just turn on the ignition switch, then connect the device to the diagnostic plug. Supplied with Cd and for K line for convenient using.