Usage Tips:Steering Wheel Column Lock Simulator Emulator for W204 W207 W212 W176 ELV Is A Self-occurring Mechanical Failure In The Steering Column Lock. The Occurrence Of The Fault Does Not Depend On Any Fault. In Case Of Malfunction, Even If There Is No Problem In The Vehicle Key, The Working Key Not Start The Vehicle Because The ELV Steering Column Lock Not Be Activated. In This Case, A ELV Steering Column Lock Must Be Installed In The Vehicle And Programmed Into The Vehicle. MB W204 Esl Emulator Behavior: LED behavior: Green LED: SCL is Unlocked Red LED: SCL is Locked Sound Behavior:Unlocking sound is played when SCL is Unlocked Note:Due to the frequent replacement of the outer packaging of the manufacturer, please refer to the actual product for details, but the functions are the same Colour:Photo Color Material:plastic Package Contents: 1 x ESL ELV Steering Lock Emulator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.