Fastens rear boot lid tightly during driving, avoids accidental bounce of luggage compartment on bumpy roads. AP02 for A B-Class W169 W245 Rear Tailgate Boot Lock Actuator A1697400335 A1697400235 The trunk lock prevents unauthorized opening of the trunk, providing extra protection for your vehicle and ensuring the safety of your belongings. Ensuring smooth opening and closing under various temperature and driving conditions, it's ideal for daily use. Function performance: Works well with central lock system, solves trunk fail to open or lock issues, Manufacturer: ATGCBCAUF