I've had about 5-6 306 dt's and they all sounded quite noisy especially on start up however you don't say what type of noise you can hear - whining from alty, rumbling from a pulley or screeching/screaming also from a pulley/tensioner/slack alty belt.
Could be any of these :nod:
As said above?? what noise?
My old 306 D has been "rattling" on for 20 years and 170000 miles.
If your worried I would suggest you find an old school Peugeot expert to listen,just to make sure there is nothing wrong.
I have a 1994 peugeot 306 xsi and have a weird problem with my gauges
When i turn up my interior fan speed, my coolant temp goes up and my fuel gauge
I guess its something electrical but i dont really know