Bought the car just over a week ago. Its a Twingo 1.2 Gt 2009. A/C not working. We took it to be regassed. Garage did a check and reconned it wasn't leaking so regassed it. On collection this tyre/exhaust/ac garage said that the 4th speed wasn't working and it would be something to do with a fault with the heater resister. Took it two days later to a Renault dealer and they did a full service. They said the a/c wasn't working (having paid out! for regas) and the condenser was cutting in and out and not to use it until it was sorted. They also pointed out that speed four on the air circulation fan WAS working, which we confirmed when we drove home. The Renault dealer service shop suggested that the condenser would cut in and out if there wasn't enough gas. We told them it had been re-gassed. So we're off back to the regas tyre/exhaust etc garage to get them to check if the a/c coolant is still present or whether its leaked out, but they don'thave a dye kit to check where it's leaking.
Ideas how to solve no a/c welcome