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Mercedes A-Class A170 CDI: BAS/ESP & ABS Lights On After Battery Replacement

dudekrafal 81691 12
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  • #1 4540915
    dudekrafal
    Level 11  
    My problem appeared after replacing the battery, namely the BAS / ESP and ABS (orange) lights are constantly on. Everything was fine before the replacement.

    What could have caused this and how to clear it?
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  • #2 4541125
    mansky
    Level 19  
    turn on the ignition, start the engine and turn the steering wheel twice to the left and to the right until it stops and the lights go out
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  • #3 4541417
    dudekrafal
    Level 11  
    It worked, thanks! :)
  • #4 6277105
    502799115
    Level 10  
    I have the same problem guys but your way doesn't work
  • #5 6465610
    telwisalfa
    Level 21  
    Hello


    502799115 Have you dealt with it yet?
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  • #6 8942464
    zapotek
    Level 9  
    dudekrafal wrote:
    It worked, thanks! :)

    I had a similar problem with the Mercedes A160, when the ignition was turned off, the power steering motor was turned on and discharged the battery, after the diagnostics, the computer showed error C1504, deleting the error did not help. When the car was running, the bas / esp / abs lights were on. I started the car and turned the steering wheel twice to the left and twice to the right the lights went out, the support works properly. Finally, I have a question what caused this fault, weak battery, bad convergence or something else.
  • #7 8948428
    spacer1
    Level 10  
    good advice similar action after topping up the power steering oil
  • #8 9515152
    1975Slawomir
    Level 11  
    Hello. This fault was caused by a lack of voltage, too low voltage > 11V, but it's nothing dangerous. After each battery connection, you need to activate the steering angle sensor, code the radio, etc. Mercedes already has it. Error C 1504 says: system turned off no initiation of the steering angle sensor. Activate the steering angle sensor by turning the steering wheel to the left and to the right with the engine running
  • #9 10637741
    irekok
    Level 11  
    and all my lights are on
    I replaced the light bulb in the meter, disconnected all the wires, put the meter on and everything is lit, the speedometer, tachometer, glow plug indicator and door locks do not work
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  • #10 10641723
    irekok
    Level 11  
    but it's already working, the cube at the counter was not connected :)
  • #11 12623326
    pioter1111111111111
    Level 1  
    unfortunately, despite the use of your advice about turning the steering wheel 2 x to the left and 2 x to the right, the lights are still on, please advice what to do next
  • #12 12623408
    trans-serwis
    Level 39  
    pioter1111111111111 wrote:
    unfortunately, despite the use of your advice about turning the steering wheel 2 x to the left and 2 x to the right, the lights are still on, please advice what to do next
    Do a computer diagnosis and it will come out what hurts him.
  • #13 15539181
    RENATA1
    Level 11  
    my BAS ESP lights up after pressing the brake and it doesn't go out what can be done about it in two weeks I have a review of the a140z2001 help maybe discs sensors I don't know but ABS WORKS IMPROVED so I don't know tires bald maybe it's
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Topic summary

After replacing the battery in a Mercedes A-Class A170 CDI, the BAS, ESP, and ABS warning lights remained illuminated. A common solution suggested by users is to turn on the ignition, start the engine, and rotate the steering wheel twice to the left and right, which successfully resolved the issue for some. However, others reported that this method did not work. Potential causes for the lights staying on include low voltage (below 11V) and the need to activate the steering angle sensor post-battery replacement. Users also recommended performing a computer diagnosis to identify any underlying issues, especially if the initial troubleshooting steps fail.
Summary generated by the language model.
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