Peugeot 406 hdi turns over but wont start, no lights or gauges work on dash except oil light, climate, multi function screen, stereo, heated seats wont work, everthing else does, lights, windows, electric seats etc

Have you tried to unplug the battery leads, let it sit for 24 hours and start it? I realize how it sounds but usually the easiest thing is the last resort.

check battery and charging system

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

The ignition key may be defective or in need of a battery to generate the code needed to disarm the immobilizer. Hope this helps!

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??

Remove the door pannel and spray releasing oil over the central locking solinoid.That should sort it for you good luck.

yes you got it, i always repair these, i cut out the connections and replace, it lasts about a year then they have the same again, rarely i do the passenger side, start with driver then passenger.

Send me your car chaisses number to get the wiring diagrem for helping

lift the carpet at o/s/f {drivers front footwell} there is two multiblock connecters guarenteed tobe sodden with water disconnect connectors& dry with a hair dryer on low setting hopefully the pins are not corroded reconnect connectors this is aknown fault i have worked with peugeot&citroen for 24 years kind regards alastair