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[Solved] Citroen C3 I Low km / h assist goes crazy, spontaneous steering movements

Tvdlamnie 12600 10
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  • #1
    Tvdlamnie
    Level 9  
    Hejo!

    I searched everything I could, asked my friends and a few people who supposedly know about cars, but I have nowhere found a similar problem, let alone a solution.

    To the point - it's about the Citro├źn C3 of the first generation, 2014, petrol 1.4, driven nearly 130 thousand. km. The car performs very well, nothing knocks, nothing knocks, fuel consumption after winter at 8l / 100km, so not too bad.

    Overall it's ok, but I plan to sell it because I'm replacing it with a newer model. As I try to be towards others as I would like others to be towards me, I want to sell the car in 100% working order. So I replaced the brake pads and discs, because they squeaked a little sometimes, polished the headlights, replaced the bulbs, washed the center of the car, waxed it, etc. etc. I have nothing to complain about, I will sell it in very good condition.

    However, once in a Russian year, there is something that does not disturb or hinder driving, but you can get scared that it is something serious. About 2-3 years ago, when there were about 100,000 on the meter. km (I drive a little) the steering wheel spoke. When stationary or driving at a speed of 5-10 km / h, the steering wheel "creaks" slightly and turns right-left by about 1-2 cm. Illustrative photo attached ;)
    Citroen C3 I Low km / h assist goes crazy, spontaneous steering movements


    And since then, it appears, disappears, reappears. Once more often, once a week and once less - once every six months. But sometimes it happens that it does not occur for six months, it suddenly appears and lasts for several days. Of course, only when the engine is running, at a standstill or at low speeds.

    This defect does not translate into a heavier steering wheel action or any other undesirable effects. This does not cause any problems when turning or anything. Even if this problem occurs while turning, it does not bother you at all. In addition to this spontaneous slight movement, the steering wheel makes sounds similar to "printing a receipt", especially in old cash registers ;)

    This whole description, as I mentioned at the beginning, I passed on to a few people but nobody knows what's going on. I gave it to the mechanics, but the problem is that when it was with them, the problem did not appear even once and the mechanic could not relate to it in any way. It is also difficult to record it with the phone, because I try not to ride with the phone in my hand set to record the steering wheel ;)

    It all sounds abstract and someone could say that if it comes out once a year, just ignore it and sell it. First of all, it's not my style, if I didn't fix it, I would tell the potential buyer about the problem. Secondly, I imagine the face of a buyer who releases the steering wheels during the "test drive" and she moves herself in his hands ;) Or a week later he calls me that I have sold him an autonomous car because he is driving himself :lol:

    In order not to come out that I don't care, I'll write my little lead.

    In this Citroen, the power steering is electric. Sometimes, after the night, when I start the car and want to immediately open the window or turn on the wiper, both of these activities seem to take a little longer than usual. But after a while everything is fine. The alternator and battery are new and even recently charged. What if sometimes the electrician is ailing on the wipers or windows, and what if sometimes the electricity just licks a little support and the steering goes crazy? Because when driving faster, there is never a problem with it, there is always a problem after starting the car and at low speeds. Can you somehow investigate it? Eliminate somehow?

    Thanks in advance for all the advice and help. If you want to answer, please write as clearly as possible, because I warn you that I am far from a car mechanic :oops:

    Best regards!
  • #2
    Staszek49
    Level 35  
    Buddy, in my opinion it is only a "temporary" failure of "car electrics". You yourself say that it usually happens right after starting the engine, i.e. a high load on both the battery and the alternator. In addition, you admit that after starting the engine you also turn on other receivers, so it is a "shock" to the battery and alternator, which then has a great need to recharge the battery.

    I believe that after starting the engine, give the alternator a moment to replenish the energy used by the battery and then gradually load it. At such times, the alternators fail, mainly in winter.

    For your own peace of mind, test that the alternator is charging properly. You can find a description of this on the forum.
  • #3
    Tvdlamnie
    Level 9  
    Staszek49 wrote:
    Buddy, in my opinion it is only a "temporary" failure of "car electrics". You yourself say that it usually happens right after starting the engine, i.e. a high load on both the battery and the alternator. In addition, you admit that after starting the engine you also turn on other receivers, so it is a "shock" to the battery and alternator, which then has a great need to recharge the battery.

    I believe that after starting the engine, give the alternator a moment to replenish the energy used by the battery and then gradually load it. At such times, the alternators fail, mainly in winter.

    For your own peace of mind, test that the alternator is charging properly. You can find a description of this on the forum.


    Thanks for the post. Let me just say that I don't always play with windows and doormats. The same, I do not always have the car camera turned on immediately, and despite everything, the steering wheel sometimes goes crazy. There is no rule, because this phenomenon occurs when many "weights" are running, but also when I just start the engine, I drive 200-300 m and stop at the traffic lights and suddenly the steering wheel "prints a receipt" ;)

    The above is also somewhat contradicted by the fact that during this winter the problem at all no performed. And that's when I most often turn on the strong warm air after starting the engine, wave the wipers to throw off the remnants of snow, etc.

    I will check the correct charging of the alternator and write what came out of it. Thanks again.
  • #4
    radiogaga
    Service technician RTV
    In the first C3 there was a factory problem with the EPS (power steering) controller. The manufacturer upgraded the type of controller. Sometimes the EPS fuse holders under the hood burned out. Sometimes water got into the sensor in the transmission. In your case, it looks like a bad reading of the angle sensor parameters The system gets conflicting signals which way to turn and tries to turn both ways :)
  • #5
    Tvdlamnie
    Level 9  
    radiogaga wrote:
    In the first C3 there was a factory problem with the EPS (power steering) controller. The manufacturer upgraded the type of controller. Sometimes the EPS fuse holders under the hood burned out. Sometimes water got into the sensor in the transmission. In your case, it looks like a bad reading of the angle sensor parameters The system gets conflicting signals which way to turn and tries to turn both ways :)


    For now, I am on the right track, because it dawned on me that I did not use a car cam during the winter. And during the winter, there were no problems with the steering wheel or I don't remember them. Now I have also disconnected the webcam and the problem does not occur!

    So the reason for this behavior of the steering wheel could be the voltage transfer to the car camera, which "lacked" it in the power steering. I hope that's it and everything will be ok. Maybe it's another case where the problem just disappears for a while and then it will show up. :D Most importantly, the problem was, I unplugged the webcam, the problem does not exist.
  • #6
    radiogaga
    Service technician RTV
    The webcam takes a current irrelevant to the installation.
  • #7
    Tvdlamnie
    Level 9  
    radiogaga wrote:
    The webcam takes a current irrelevant to the installation.


    Are you sure?

    A very strange coincidence then. There was a humming noise from this steering wheel, I disconnected the camera, nothing rumbles. As he took with his hand. Maybe a coincidence, or maybe something was interfering with the installation.
  • #8
    radiogaga
    Service technician RTV
    Faster disturbances than too high current consumption.
  • #9
    kszumek
    Level 17  
    Hello
    I had strange symptoms with power steering in skoda octavia 2
    there is also electric,
    sometimes it faded, sometimes only the light came on
    she got wet every once in a while
    ended with the replacement of the steering gear and the problem disappeared
    best regards
  • #10
    radiogaga
    Service technician RTV
    In Octavia, the servo driver is integrated on the steering gear and exposed to moisture. In the C3, the driver is high. It has nothing to do with this story.
  • #11
    Tvdlamnie
    Level 9  
    I have disconnected the camera permanently and the problem does not occur. There are no more "extra" energy pick-ups ;) Apparently that was the cause of the problem.

    I also read on the net that the cause may be a NON-FACTORY radio. I have one so maybe this is also a problem here. But without a camera, the problem does not exist for several weeks.