The service repairs punctures, replaces inner tubes and checks tire pressure within the Congestion Charging Zone.
Full tire pressure under a new patch is a good way to make it peel off again.
Change the oil, check your tire pressure and make sure you have enough gas to get where you are going.
If possible, take along a friend and listen for noises, check knobs and controls to make sure they work, and bring along a tire pressure gauge to check the tires.
The new design had more seatbelts, antilock brakes, and a warning signal for low tire pressure.