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Intermittent ABS and ESP warning light

Discussion in 'Engine' started by trooper1, Oct 10, 2011.

  1. trooper1

    trooper1 New Member

    Messages:
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    Oct 10, 2011
    Car:
    2001 E55
    Hello, I am new to this forum.

    I have been running an '01 E55 estate for 2.5 years and thoroughly enjoy it. A great mixture of pace, space and stealth.

    However, every now and then the ABS and ESP (i think it is ESP) warning lights appear on the dash board telling me to go to a garage. The strange thing is the warnings disappear when the engine is turned off and re-started. This happens every so often and I have not worked out a pattern. We live in London so wondered if it occurs because the engine is too hot (i.e. traffic) or if there is a loose connection i.e. related to my wife driving over the dreaded speed bumps too quickly?

    Can anyone please help?
     
  2. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

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    It needs to be plugged in to a Star to see what is causing the fault.
     
  3. OP
    OP
    trooper1

    trooper1 New Member

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    Oct 10, 2011
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    2001 E55
    ok - thanks. I will keep you posted.
     
  4. Dichtung

    Dichtung Hardcore MB Enthusiast

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    Speed bumps?
    My car started with similar problem.

    Turned out to be wire from Passenger seat junction box to sensor embedded in the seat squab.

    They continually flex with passenger weight and eventually start breaking, and switching the ESP light on.

    Just a thought. :thumb:
     
  5. Howard

    Howard Hardcore MB Enthusiast

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    Would that not illuminate the SRS light , not the ESP ?

    The seat squab is a common fault of SRS light illumination , it isn't connected to the ESP system.
     
  6. Dichtung

    Dichtung Hardcore MB Enthusiast

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    Sorry Trooper; Howard is correct. :doh: Just been out to the car to check.

    The SRS light on the dash, and the little airbag light, next to the gear selector.
     
  7. RBYCC

    RBYCC Hardcore MB Enthusiast

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    1971 280SL, 1988 300CE TT, 1994 E320 CAB, 1999 AMG C43, 2005 AMG G55K 2008 CLK63 AMG BLACK SERIES

    See below....sorry for the duplication, something went wrong with the posting !
     
    Last edited: Oct 12, 2011
  8. RBYCC

    RBYCC Hardcore MB Enthusiast

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    Trooper

    A few possibilities...

    ABS and ESP warning lights coming on when a true fault condition does not exist are typical of a system low voltage...anywhere from battery to voltage regulator to alternator.

    You may also want to check if your car has a brake light switch which if faulty can also trigger the lights.

    If the lights stay on, in some models they can be reset by turning the steering wheel left to right full lock with the engine running.

    Ed A.
     
    Last edited: Oct 12, 2011
  9. OP
    OP
    trooper1

    trooper1 New Member

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    2001 E55
    Sorry for the late reply and thank you very much all your responses.

    The issue is still ongoing. I am going to book it in with an expert - will keep you posted.

    Does anyone have any recommendations for Merc specialists in south London?

    cheers
     
  10. OP
    OP
    trooper1

    trooper1 New Member

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    Oct 10, 2011
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    2001 E55
    Ed A,

    Before I book the car in - are you suggesting the problem could relate to an issue with the battery's power (or lack of)? We live in town so most journeys are stop start and we only do c7k miles p.a. Surely, this behaviour will drain the battery, which may prove your theory correct.

    I checked and all brake lights work.

    Many thanks.
     
  11. Bellow

    Bellow Hardcore MB Enthusiast

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    On Smarts this issue is frequently caused by:
    Mismatched tyre (including incorrect pressures)
    Faulty brake light switch - very common.
    Corroded reluctor (ABS) rings.
    Driving over speed humps - but this merely activates the ESP briefly.

    Check the simple stuff first. If it is fine prior to first application of the brakes - suspect brake light switch.
     
  12. Bellow

    Bellow Hardcore MB Enthusiast

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    If as per smart (smarts have Merc input), the switch has dual contacts. One set for the lights and another for ABS/ESP etc. Guess which is the vulnerable set!
     
  13. flt.eng

    flt.eng Hardcore MB Enthusiast

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    Where is this brake lght. switch.
     
  14. 24 VRT

    24 VRT Member

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    Location:
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    Car:
    '99 W210 E320CDI A/garde Estate

    I had the same problem with my '99 E-class. Its the battery voltage being too low when you start up. Go for a drive and re-start and the warning lights / message go away. All those short journeys will run the battery down and it gets worse as the colder weather comes along.

    All I do now is leave the old girl hooked up to a CTEK battery conditioner and the problem's gone. Not necessarily easy, however, if your car is parked on street when not in use!
     
  15. Bellow

    Bellow Hardcore MB Enthusiast

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    On a smart fortwo it's under the floor - as is the master cylinder and servo.
    On a more conventional car it should be easier found - somewhere close to the master cylinder, or on the pedal.
     
    1 person likes this.
  16. Oneilly

    Oneilly Active Member

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    Good info
     
  17. nadeem.akhtar

    nadeem.akhtar New Member

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    Nov 3, 2013
    Location:
    Bedfordshire
    Car:
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    Hi trooper1

    Have you resolved the ESP error problem? I am experiencing the same issue on my E Class E220 CDI (W211 - 53reg). I only receive ESP error, I don't see ABS, BAS errors on my dashboard. As soon as the car is switched off and re-started, the error goes away.

    My outside temperature reading is extremely high, so I have bought a new temp sensor but haven't yet fitted. Also, when the heating is on, coolant temparature does not go beyond 1 bar (40 or 50 C). if the heating is off, temparature does go to about 80 C.

    Are these all related to one problem? if so, what could it be be?

    Many thanks for your help.
     

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