No need to weld the filter, the filter is docked with car instrument plug and socket. Simple and efficient operation, safe and reliable. Support models: For all series ID7 instrument. Function: As we know ID7 dash is from G series for , and no tool can change mileage of G series IMMO Module. After you Modify ID7 dash Milage, and install on car, the Real Milage Sync from IMMO Module This filter function is: When you change the mileage of the ID7 odometer, the filter prevent the real mileage Sync from IMMO Module synchronizing with the mileage of the ID7 meter Support Models: Support for BWM 2019+ THE 5/7/X5/X7, 2020+ THE 3/X3/X4/X6 etc. any instrument is ID7 type. To stop the mileage from BDC2/3, not to show in instrument. Notice: 1. This Product is NOT for ID7 dash Mileage KM Frezen or stop Mileage, please notice before you buy. Not for stop milage running !!! 2. Solve ID7 dash dark screen issue !!! Filter installation process: 1. Separate the shell from the old instrument plug. 2. Install the shell of the old instrument plug to the filter. 3. Plug the filter into the instrument socket. 4. Plug the filter pin into the instrument harness socket. Color:As Shown Material:plastic Package Contents: 1 x for ID7 Special Filter 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.