External thermometre is not working where is this located

No external fuel filter. Only the dock in the fuel pump in tank. A lot was available to install an external but location would be on the frame rail if present and sit was a dealer add-on that was very uncommon.

To use an external fuel pump it will have to be self priming for the lift associated with the selected pump location. Many external pumps are designed to assist the functional pump in the tank. They are not designed to work as the only pump. In my opinion, the best course of action is just to replace your failed stock pump with a new one..so in essence no.

The external temperature sensor is usually located directly behind the grille and in front of the radiator. It should be relatively easy to find because it will be the only thing in that area with wires.

external temperature display is this the external, ambient air temperature, option?
sure , bad sensor, bad wires or connection to it.
the FSM book covers these test. (buy one?)
Factory service manual.
sold at all Citroen dealers.

Your coolant temperture switch may be faulty,it's usually located and screwed into engine by thermostat housing.Eay to remove,disconnect electrical connector and get wrench and remove.

it may not have an external fuel filter alot of the car companies are doing away with the external fuel filters .you could also ask your local parts store if it has an external filter

Hello there
This should help you out a lot ok

To test, use a high impedance volt-ohmmeter. Resistance should be less than 1000 ohms with a WARM engine (examples = 212* would be about 185 ohms, 160* would be about 450 ohms, 100* (not warm enough) would be 1,600 ohms).

> What does it do? Adjusts the injector pulse widths (Colder coolant temperatures result in longer injector pulse widths and richer air-fuel mixtures). Compensates for fuel condensation in intake manifold. Controls engine warm-up idle speed. Increases ignition advance when engine is cold. Energizes the EGR valve solenoid to prevent flow of vacuum to the EGR valve. Update: Basically - this sensor functions by providing a resistance-to-ground circuit that the computer (ECU) uses to determine how much fuel the engine requires. (The hotter the coolant - the lower the resistance.) The resistance of the sensor is read by the ECU which in turn adjusts the air/fuel ratio as close to 14.7:1 as possible. When a coolant temperature sensor fails (open circuit / no continuity) the high / infinite resisitance will cause the ECU to falsely read the max low temperature of -40 degrees F. The ECU then tells the injectors to enrichen the fuel mixture because it thinks the temp is really cold when it really isn't. A short to ground would cause a 'no-resistance' fault causing the ECU to think the coolant air temperature was extremely hot and lean out the fuel mix.

cable probably became disconnected in door..

The external temp sensor is located just in front of the right front underside of the car.It is located just in front of the right tire.It will most definately be underneath a protective panel and is quite a large,you can'tt miss it.

External temp sensor is located in front of ac condensor lower part.