I have an early td4 freelander 2 here, which is new to us, but I know the previous owner well. The car has an issue that it goes into limp mode. Very occasionally with the previous owners, seemingly easier with us. Scenario yesterday - Had been driving for about 45 mins (motorway then dual carridge a road) Approached a long hill that would often push my TDI golf into limp as I crested the hill (vgt with sticking vanes - overboost error). As we started up the hill, I even commented to my partner that this was the very hill that always troubled the golf... ...and, sure enough, limp on the Freelander also. But not at the same point at all. The vgt overboost would always happen on the golf as I crested the hill. ECU calling for less boost, vanes sticking, overboost error. But this was half way up the hill. Power loss. Limped to Exeter racecourse, kept the engine running, plugged in the (unregistered) gap ii dongle, and read the errors. Nothing new or that made any sense. Was in a rush and new to the tool, so didn't save the error list, cleared the errors, turned the car off and on again and all was fine. Points which interest me - No dash lights or messages at all. Previous owners said that, somtimes, off and on again would do it, but somtimes it was an AA job (they had no reader to clear the codes themselves) So, maybe the lack of dash warning or obvious error on the gap tool were accurate? But then what would do limp and not call an error?? And how do you fix that kind of issue?