One of my car keys has stopped working

Immobilier chip has oddly died.
Join a forum find someone near with a lexia to re program it or go to Citroen, it should be cheap it's only 10 minutes.

I have a Citroen C3 1.4 Petrol 2005 model. Started it this morning. It was running for a few minutes but suddenly lost power and did not want to idle.
The car switched off. I tried starting it again, the engine swings but it does not want to start. I replaced the spark plus, the air filter, the petrol filter as well as the oil filter. Still nothing. Is this an electrical problem or the petrol pump. What could this be?

check
-fuel pump
-your key
-igntion coil
-crank sensor(rpm)
-ther is fuel in your tank or empty
-check the all fuses in BSM and BSI

Run a diagnostic scan if you can and check any unresolved fault codes, undo the fuel filter place in container and turn on the ignition, any fuel flow?

mark (mhpautos)

Hi,

I have a Citroen C3 Auto and recently it has given me a lot trouble. I see no warning lights flashing nothing seems to be wrong with the car but at times it won't start. This problem accurse when i drive the car for some time. It happens to me in the filling station where after refuelling i was not able to start the car. One turning the key it gives a little ignition sound but won’t start. I have checked the battery there is nothing wrong with it. What could be the problem? Is it because the car is overheated? But the temp gage has only two or three bars? Could it be the starter issue? What should i do?

Thanks

You may need to inspect for a good spark, check fuel pressure and general tune items, when was the last time you had a full tune up.

Hi all,

My 2003 C3 ticks over but will not start, it broke down on the motorway, the spark plugs are fine and fuel is getting to the fuel rail. It has had a diagnostic test and it did not report any fault codes.

From what I have read on the internet it seems like the I need to remove the injectors and dry them aswell spray some wd40 on them?

Any ideas people are much appreciated.

Best,
Kevin

It is a petrol... 1.4.

any help much appreciated.

thank you

start with basics. have the battery checked if it is ticking.

check compression, fuel pressure, fuel at the rail is not enough, and spark.

how did you get a diag test without it running??

Roy

engine automatically shutdown when driving. cannot start after that. tow to workshop to check using comp but nil defect found using autoland and original software from citreon company. done all the wire check, all ok.

the only indication i found are '-' in gear position. it don't show 'n' in display. for info i am using amt transmission.

check the timing belt has not broken !

oh and sorry roy, the battery was fine and the car kept nearly starting bur not quite get there.. but I think now I (and mechanics) have been trying it I think the battery might be getting low.. but at the time it broke down the guys checked the battery and it was fine..

Look forward to your response reference to whether or not it si worth cleaning and WD40'ing the injectors.

Thank you very much
Kevin

engine are in good condition. nothing wrong with the engine. i think the problem start with the gear position. it will not start with indication '-' position. it will start with 'N' position only. i cannot troubleshoot with out wiring diagram. if i have diagram i will try to jump the wire to make the ecu think its in 'N' and conform the motor are unserviceable.

forget the injectors for now till the basics are nailed down to determine the failure.

Roy

check/replace the park/neutral posititon switch on the transmission

Thanks Roy, will do. How much should a Compression test cost me?

soorry mr dave

i think u don't understand my problem. my car don't have any of that. i have sensodrive, so at gearbox selector only have +, -, N and reverse. so how can i select P when no parking selection. all the basic thing that u mansion to me, i have done. now i need to check the wiring system to determine what the cause for that problem. i'm also mechanic and i already check all the wire nothing found. the only thing to do now, is to check for the system. ECU already send to workshop for check and the condition are ok. actuator for clucth also change. the last thing to check are actuator for gear shift. that i need a wiring diagram but i didn't have. if i have have that i can understand the operation of the system and i make some decision how to repair it.

1 hour in labor.

Roy

Hi Citroen C3 failed to start, stuck in auto mode. Auto light on daskboard flicker with a line displaying below. Display lights on car just don't want to start. Egine seems not to talk to sensor. ECU could be the problem.

Is the starter engaging? If it is, have you checked to see if there is spark to the plugs and fuel pressure is within the manufacturer's specs? What do you mean by "Auto Mode"?

Auto mode - sensor drive gearbox will not engage a gear, display a "auto" light flashing with a snowflake. This seems to be a common problem with Citroen sensor drive. I've tried the sensor drive reset procedure describe by Citroen but no luck to get the car to engage in a gear. Very dangerous when in traffic and you loose gears just like that. I have lost my faith in Citroen.

This car has a digital Air Con system.
It is the 1.4HDi Exclusive.

Although the display shows the blower is on the motor does not start.

I have removed the digital rheostat and shorted across the the live points of the power transistor and the motor runs.

I have removed the power transistor to test it but I am unable to find any specs for it. I am not sure if it is blown or not.
Does anyone know of a replacement for this transistor?
Or any other idea's maybe its not blown but the fault lies elsewhere.
Regards John

I would replace the resistor with new

[quote:fbc0197741="johnsiddle"]Heater problem
2004 Citroen C3 4 cyl Two Wheel Drive Manual 65000 miles

This car has a digital Air Con system.
It is the 1.4HDi Exclusive.

Although the display shows the blower is on the motor does not start.

I have removed the digital rheostat and shorted across the the live points of the power transistor and the motor runs.

I have removed the power transistor to test it but I am unable to find any specs for it. I am not sure if it is blown or not.
Does anyone know of a replacement for this transistor?
Or any other idea's maybe its not blown but the fault lies elsewhere.
Regards John[/quote:fbc0197741]

Hi Guy's
I finally sorted it by process of elimination
The Power Transistor is an N Channel Mosfet.
I replaced it with a IRFZ48NPBF RS part number 540-9957 cost about £1.50 this one is able to switch 62amps instantainious so should be well up to the job

I hope this will be of use to others.
John

[quote:08244d55db="Dave H"]I would replace the resistor with new[/quote:08244d55db]

A new Digital Speed controller/climate controller (its not a resistor) costs about £60 on fleebay.
The mosfet I finally fitted cost about £1.50

If you can un/solder its a no brainer.
Regards John

i tried unlocking my car with the keyfob it wouldnt work.so i opened it with the key the alarm went off and a button saying off just below the stereo wont stop flashing. the car wont start now and to top it all i have just discovered that the key will only lock the drivers side door not the whole car.

@johnsiddle

Hi,
I have the exact same car (only from 2002) and the exact same problem :-)

Where is this "fan speed controller" located? I also want to replace the MOSFET...

Thanks,
Muris

In most vehicles of any year you have to have the Electronic Remote Keyfob to reset the alarm system once it has gone off. You can try to dis-connect the battery, wait one minute and re-connect. However, you need the code for your radio or it will not work. Your car may not need one, but since the Security sytem was tripped if it does it will be needed. If you bought the car new they would have given it to you. When you re-connect the battery, the radio will display, "Code" or, "Enter Code". You will have to talk to a dealership about resetting and retrieving the code if you do not have it as it requires a special tool.
To get the key fob to woek, hpefully it only needs a new key. you hjave to carefully pry it apart to replace battery. It is almost worth going to a dealership for this as well becasue if there is a way to do it withotu needing to have it re-programmed, they will know. Sometimes replacing the battery, and if the keyfob needs replacement you will have to, requires that the keyfob require a flash re-programming. This is very expensive.
So, I would go to a dealer and go to the parts Department and ask if they know how to replace it and if it will require re-programming. I say the parts department becasue you may find someone nice enough to take it apart for you if they know how and if you go straight to service, you will probaably get charged.

well done john, i admire when someone manages to find a simple cheap fix for something that otherwise would have cost an arm and a leg, and probably not as good.
I too have problem with C3 heater which you resolved, can you please tell me where the transistor to be replaced is located.
I am in UK, but do not think C3 will be any different over here.

Thanks

Citroen C3 1.4HDi 2003; My car battery keeps dying and i'm not sure why? Do you think investing in a new battery is the best answer? Also when i'm driving, the car sometimes cuts out when i'm changing down gears, i can restore it by bringing out the clutch but sometimes the power steering becomes heavy and it can be quite annoying? Please help me...

I've already tried charging the battery, but if i leave the car not running for a couple of days, it dies again and needs charging...

Have the battery and alternator tested if okay-have the electrical system checked for a short circuit

https://www.2carpros.com/articles/car-battery-dead-overnight

Got a non standard radio per chance?

Electrical problem
2003 Citroen C3 6 cyl Manual 112000 miles
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when the car starts after few seconds the engine cuts and when you restart the car it is fine, happens sometimes

the anti theft system seems to be the fault .. sounds like it is not reading the key correctly ... have the car's computer read for faults ?

Mine is actually a MPV, Citroen Evasion. Was parked over 12 hrs at sisters house. When I wanted to go home, it refuse to start. Normally starts at first crank. Tried again an hour later, still cudnt start. Borrowed my sisters car. Next evening it started at first crank. Off it and try again couple of times, ok good. Later went home with it and left at home. 2 days later when I want to use it, the problem recur, cranks but cannot start. It has been 4 days since but it still refuses to start, though I try two times everyday.I now drive my wifes car, hoping it will naturally start again as I live far away in yhe countryside.

this sounds like a fault on the immoboliser .. you ned to have vehicle's computer read by a mechanic with suitable diagnostic software ..