Having recently spent a lot of money getting my Multipla up together (and for once it actually feels better as a result), it has repaid me by flagging up a fault code (P0046). I therefore conclude that my Multipla must be female .

Best I can work out, this code relates to the turbo actuator. Any recommendations as to what to check first? The turbo actuator pushrod doesn't move when the engine's revved and it's looking like it could do with a clean and a free-up, so I'll start with that along with a check of the vacuum hoses.