There's not too many of us here with much expirience with the CDI's as they have just arrived here 2 years ago and are still under warranty, but.....it sounds as if it has a fuel leak somewhere that is allowing air to enter the fuel system causing hard starts. The CDI's still rely upon oring seals at plastic fuel lines feeding the fuel filters and IP that cause problems on the 606 engines. The 606 IP relied on oring seals at the delivery vlaves too. Your pump is considerably different so that may not apply on your engine. The above assumes the car runs good once started.

Is also possible is an electrical glitch controlling the shutoff valve or a sticking SOV.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)