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How to Fix Error DF038 on Renault Megane 2 1.9dci 2004

Bartek_1617 25494 8
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  • #1 17801735
    Bartek_1617
    Level 10  
    Renault Megane 2 1.9dci 2004 - Error DF038
    How to Fix Error DF038 on Renault Megane 2 1.9dci 2004
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  • #2 17801789
    castin
    Level 25  
    The first three are probably garbage, did you delete them and re-read them? The last one is a separate topic.
    Check the power supply and maybe a clip to show the details of DF038.
  • #3 17801843
    Bartek_1617
    Level 10  
    I deleted it and it doesn`t appear yet, but with these errors I had a problem with starting the car.
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  • #4 17801847
    castin
    Level 25  
    Check the battery and power supply - these errors are most often caused by a voltage drop on the controller.
  • #5 17801997
    Bartek_1617
    Level 10  
    The battery is not in its prime, it is already 4 years old and I have a white coating on the terminal + what looks like electrolyte. Cubes cleaned, alternator a year after regeneration and charging around 14.2v. And the plastic housing of the main 500a fuse on the + terminal is slowly melting
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  • #6 17802288
    genek1000
    Level 35  
    DF038 generally refers to problems with the injection controller power supply.
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  • #7 17802356
    Bartek_1617
    Level 10  
    What could be wrong with the electronics in the controller? Maybe there is a sensor?
  • #8 17802373
    genek1000
    Level 35  
    Bartek_1617 wrote:
    What could be wrong with the electronics in the controller? Maybe there is a sensor?
    :crazyeyes:
    After all, I wrote that it refers to problems with the controller`s power supply, so why ask about the controller`s electronics if you haven`t checked anything yet and what sensor? :?:
  • #9 17802823
    Bartek_1617
    Level 10  
    genek1000 wrote:
    Bartek_1617 wrote:
    What could be wrong with the electronics in the controller? Maybe there is a sensor?
    :crazyeyes:
    After all, I wrote that it refers to problems with the controller`s power supply, so why ask about the controller`s electronics if you haven`t checked anything yet and what sensor? :?:

    You know, my friend, I don`t know exactly where to look and what to look for, that`s why I`m asking.
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Topic summary

The discussion revolves around troubleshooting Error DF038 on a 2004 Renault Megane 2 1.9dci, which is linked to issues with the injection controller's power supply. Users suggest checking the battery and power supply, as voltage drops are common causes of such errors. The author notes that the battery is aging, showing signs of corrosion, and the main fuse housing is melting, indicating potential electrical issues. There is a debate about whether the problem lies within the controller's electronics or sensors, but the consensus emphasizes the importance of verifying the power supply first.
Summary generated by the language model.
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