Hi gents n ladies,

I heard a hissing noise on the car this evening when I started it and was cold, was laud at first then dampened down the noise but I could still hear it...

Went home and plugged it in and given me the following fault code:

P0359 - Ignition coil I primary/secondary circuit.

I had a read in this link to see how bad it is: http://www.obd-codes.com/p0359 and it doesn't seem that bad and can still drive my car for now.

Just need some help on if it is a job that I can fix myself and what parts I need to do it?!

If there is any guide that can help that will be great.

Thank you and look forward to hear from you..

First of all you need to clear the code and see if it returns a coil fault doesn't produce a hiss so im not sure its related.the fault if it comes back is a simple fix the coil pack and leads will require replacement which is 4 torq screws to remove and replace the issue is it can be leads coil or both hence why you replace both but in some circumstances it can also be the wiring to the coil pack ide clear the code first and see if it returns also check youre spark plugs arent loose or that theres water in the plug wells this could be the cause of the hissing and give a fault code

I see your model is a 1.8TDCi which, being a diesel, doesn't have coils so are you talking about a different car?

If it is the TDCi the hissing could be a split boost pipe.