Ignition problems with Peogeot 306

Hello, I am new in this forum and I appreciate your help in advance. I have a 306 xSDT Peogeot, my problem is when I turn on the car takes to start, sometimes I have to try 4 or 5 times ... I put the contact I hope that the light of the diesel heater will turn off but still does not start the engine and as I said to the fourth or fifth time of trying to turn it on but I have to give up the accelerator to start and come out white smoke by the exhaust tube. This only happens with the cold engine.

As you explain the failure, it can be due to pre-heating or the food system is discharged, to rule out things begins to review the heater and electrical alienation of these and if it does not continue with the fuel feeding system, I hope it serves you the aforementioned greetings from Tenerife.

Thanks for the aid ... I have reviewed the diesel heater and two of them were spoiled ... I have changed them and the car has started without problems ..

I am first glad to solve it, and second to answer with the result being for us the mechanics, which is not bought with money.

Greetings from Tenerife