적용 대상: Model 253 (except 253.99) as of model year 2020 with code U67 (230 V socket in interior compartment) with code U80 (115 V socket) Control unit N24/3 Model 253.99 as of model year 2019 with code 9O1 (Fuel cell pre-installation) with code U67 (230 V socket in interior compartment) with code U80 (115 V socket) Control unit N24/3