There seems to be a problem with the hyper-expensive R-1234a refrigerant that has been foisted on the car industry. Am now starting to get regular complaints of loss of gas after 2-3 years and similar costs to re-gas. A regas with R-134a could cost as little as £45. Also happens with Peugeot 308s and other new models. Likely to be the start of an industry-wide problem and probably a scandal because the switch to R-1234yf was heavily lobbied onto legislators.