Thank you all for your advices! The problems are finally resolved. The A/C mechanic could not fill the R2 because the heater fan has been accidently disconnected (by a foot...)when working in the fuses area. As this had happen AT THE SAME MOMENT we where changing the seals of the compressor (and losin all pressure), I thought the heater fan did not work because of low pressure of the R12! All has been restored and my Delorean is now COOLER than ever! François Laplante VIN 17145