What exactly is data card code 258 (COLLIS.WARN. SYS. W/ ACTIVE BRAKE INTERV. FCW STOP)?

Discussion in 'General Discussion' started by wongl, Jul 14, 2019 at 8:16 AM.

  1. wongl

    wongl Hardcore MB Enthusiast

    Messages:
    771
    Joined:
    May 29, 2005
    Location:
    Hong Kong
    Car:
    A180CDI, C300h, SLK250
    Just acquired a 2016 W246 for my daughter and from the Data Card I noticed that this car has code 258 (
    258 COLLIS.WARN. SYS. W/ ACTIVE BRAKE INTERV. FCW STOP).

    Whilst driving on the motorway home, I noticed that a red triangle warning light on the dash when I got to close to the car in front, but the car didn't brake for me. So what exactly is code 258 and how is is a collision warning system with active brake?
     
  2. JDPEClassUK

    JDPEClassUK Active Member

    Messages:
    72
    Joined:
    Sep 3, 2018
    Location:
    Cleckheaton
    Car:
    E Class Estate
    If you had been gaining on the car in front and did not intervene by braking, the active brake would have done it for you. I would never rely on it as it is a bit last minute and designed to intervene if you don’t react quickly enough


    Sent from my iPhone using Tapatalk
     
    Ted and wongl like this.
  3. OP
    OP
    wongl

    wongl Hardcore MB Enthusiast

    Messages:
    771
    Joined:
    May 29, 2005
    Location:
    Hong Kong
    Car:
    A180CDI, C300h, SLK250
    I see, it I did not take any actions, the active brake feature would have activated the braking for me.
     
  4. zipdip

    zipdip Hardcore MB Enthusiast

    Messages:
    2,370
    Joined:
    Mar 5, 2015
    Location:
    Essex
    Car:
    s320
    Well it one of those systems it is best not to try out just in case,but hey fill free to give it a whirl on the Causeway.
     
  5. Pontoneer

    Pontoneer MB Club Veteran

    Messages:
    12,085
    Joined:
    Aug 19, 2002
    Location:
    Ayrshire
    Car:
    '93 190E 2.3LE W201 ; '93 300SL-24 R129
    Try it in a demonstrator , or hire car ...
     
  6. BMF

    BMF Hardcore MB Enthusiast

    Messages:
    1,305
    Joined:
    Jan 9, 2019
    Location:
    East Devon
    Car:
    C220 (W205) 2015 Bluetec Sport Premium Plus
    I have gotten too close to hedgerows recently and it has activated, you should get an audible warning also, but it scared the bejesus out of us the first time.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.