The Dealer checked the underperforming A/C at the 15K service, replacing an O-ring seal and evacuating and recharging the system. By the 22.5K service, the system was totally inoperative. The dealer then replaced another leaking O-ring. So far, so good. In between those two services, the LR3 went in for a fuel-tank recall and inspection of a low-coolant warning light. The dealer ordered a new reservoir bottle and replaced it during the 22.5 service. Front and rear brake pads were also replaced during that service.