Shortly after the first service, the rear suspension airbags - on both sides - failed completely. There were no fault codes. But, the car was metal-on-metal in the rear and it was obvious. We had to have the car towed to the dealer again. The dealer was very nice, they believe they must have cut or scored the airbag material during the fix of the differential leak. The airbags retail for $398 each. You can replace them quite easily DIY, all from below the car. Hopefully you never have to.