Peugeot 406 Estate diesel HDI 90. The heater

it will be stamped on a flat surface of the engine , different makers use different positions, it will be below the head as its the engine block that is numbered just have to clean it off and have a good look around , usually on one of the sides , good searching, or contact Peugeot with the rest of the vehicle details

you have to check the fuse box under the wheel

It is best to contact a parts store for this information, We have no way to look this info up. If I had to guess I'd say no.

have heating in my peugeot 406 hdi when car is ticking over but when i drive for few mins the heater goes cold

im affraid it will be a trip to the dealers the fuel additive tank is located in or next to the fuel tank and can only be refilled by the dealers it also on the othe hand be caused by putting poor quality fuel in (one of our customers used to have the same fault when filling up with diesel from bp) all we did was erase the error code and fill car up at another petrol station, the car has been fine since

if i turn on fan it stops and starts and stop and starts

renew the flexible hose connections at the tank end if fitted and not a plastic pipe going straight to sender unit .Sucking in air problem is one of THEM jobs .a right pain to find 99%of the time .but any flexible rubber pipes can and do go porous with age

it would never be 1000 euros!!!!!!!!!!!! it will be part of the exhaust system it cuts out because its causing pollution

it will or should be on top of the engine in the cylinder head area??

in automatic transmission box has two solenoids that were broken , so they must be changed , because I am peugeot specialist in Australia.