I have a red warning light coming on in my peugoet

1. Check the coolant level if you have not already.

2. The most likely cause is a stuck thermostat so that when the engine is getting up to operating temp the thermostat is not opening at all - or enough - for the coolant to flow freely between the radiator and the engine to cool the heated fluid. If you check the radiator after driving and find it is cold it is a sure sign that the heated coolant that is circulating through the engine at operating temp and higher is not getting to the radiator. The first thing I would do is to change the thermostat and re-check. At the same time completely flush the coolant and replace it with new fluid of the correct spec.

The radiator fans are not going to operate when the fluid in the radiator is cold because the hot fluid cannot flow through from the engine. The fans have a temperature sensor switch.

3. If that does not solve the problem I would suspect the water pump has corroded and needs to be replaced. However from the symptoms you have described I believe a new thermo will fix the problem.

4. Don't drive the car when it is overheating. This is a certain way to blow the head gasket and potentially crack or warp the cylinder head. (In a worst case you can crack the engine block.) It will be nice and expensive to repair if you blow a head gasket or damage the cylinder head.

You must ensure the safety of the fuel pump .You make sure there is enough fuel in the fuel filter .
i hop for you the best .

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

COULD U PLEASE TELL ME WOT NUMBER FUSE THE HEATER IS PEUGOET 406 P REG

i have a peugeot 406 2lt diesel , i went to the car earlier and my electronic immobiliser warning light is on ? what can i do

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

In my opinion you have already checked and cured the most common problem zones. In my opinion take it to a car electrician and let him find out the problem. May be the wiring is faulty.

could be a broken abs ring on drive shaft

Yes i think that i can help you.Please just send me yuor car chassis number and mor details about the symptom

Which model is the car? I have the manual for Peugeot 406 Mar 1999 to 2002 in PDF format. If that's any good to you I can either send it via email or try and find the original link I downloaded it from.