clonking noise when turn ignition on

[iso boy]

Hi, looking for some help. As soon as I turn the ignition on ( not starting engine ) there is a clonking noise from what sounds like the n/s bulkhead area. Must admit I have not looked too hard. This lasts for a few seconds then stops. Any suggestions appreciated.

[NCE 61]

Sounds like the heater flap which moves when the ignition is switched on.

[PetrolHeadPete]

annoying isn't it
mines the same
will take it appart one day to see why

[iso boy]

Its a bit of a pain, I just want to fix it in case it causes other problems, anyone know if its in the cabin or under the bonnet ? before I start taking bits of I don't need to
thanks

[T5AMX]

remove the bonnet and the skirt under the windscreen then there you have it

[PetrolHeadPete]

isnt it under one of the two airboxes?
I tried removing these and failed dismally
the pipes into the cab seem to prevent removal

[iso boy]

Thanks for the help, will have a look at the weekend and let you know what I find