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C4 2012 1.6HDi 84kw // engine fault - air conditioning not working after fault
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Author Post
Onopko   
Wed Aug 16 2023, 11:47am
Member No: #58241
Joined: May 27 2021
Location: Croatia
 Hello, guys,

I have a strange situation with my Citroen C4 1.6 HDi.
Namely, when the car is driven for a long time, for example more than two hours at a time, sometimes the error "ENGINE FAULT" pops up and SERVICE appears on the clock.
The car then continues to work normally, only the air conditioner stops cooling, possibly slightly losing throttle power.
As soon as I stop, I turn off the car and then start the car again, the error disappears and everything works normally again, i.e. the air conditioner mysteriously works again and works without any problems.

On one occasion after the fault started, I didn't turn off the car and I had a small obd with me that connects to the mobile phone, I connected it but he couldn't find the fault either, the cool thing I saw (since the Citroen c4 doesn't have a temperature gauge) is that engine temperature is about 80 degrees.

Has anyone encountered something similar and what could it be?

Thank you in advance!
vexorg   
Thu Aug 17 2023, 03:14am
Member No: #48843
Joined: Jul 06 2017
Location: Scotland
 The car will know, read the fault codes....
Ap0qalypto   
Thu Aug 17 2023, 04:03am
Member No: #52161
Joined: Sep 21 2018
Location: Republic of Serbia
 I think he tried that already, but non of the codes were present in ECU memory
Onopko   
Thu Aug 17 2023, 01:30pm
Member No: #58241
Joined: May 27 2021
Location: Croatia
 Yes, just like that...there are not any fault codes...
Farmerguy   
Thu Aug 17 2023, 04:20pm
Member No: #59597
Joined: Apr 10 2022
Location: Denmark west part
 Can your scantool do a live stream of data?
Try doing that while driving and record and see if something change.

Status on airfilter, fuelfilter ? Know anyone with another scantool?
 

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