Light switch r231

Discussion in 'Electronics' started by carnut, Dec 8, 2016.

  1. carnut

    carnut Active Member

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    I have a r231 sl400 2015 build bought this spring. Now it's dark evenings I have taken the car out and noticed that the light switch is not illuminated. It's a 5 position switch and none of the positions are illuminated ,just the knob . Is this normal?

    Also is anyone else having trouble overriding the intelligent light function. Can't seem to get full beam as it won't let you . I like the idea of all the light functions but I still want to be able to control the lights myself if need be


    Advice welcome
     
  2. brucemillar

    brucemillar MB Enthusiast

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    I believe that this is normal. It is on both of my W203's. They look like they should be illuminated? but they are not. A check on here some time ago confirmed that certainly on the W203 they are not illuminated. Strange and I have no idea why it is not.
     
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  3. whitenemesis

    whitenemesis MB Club Veteran

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    Not on my 203, until I replaced the factory fitted halogen lamp switch with the type required for the retrofitted xenons. Surprised me when all the symbols lit up!

    The xenon equipped CLS didn't illuminate..
     
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  4. Diesel Benz

    Diesel Benz MB Enthusiast

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    Momentarily: just pull the lever towards yourself like on any MB.

    More permanently: have a look at the settings menus at the instrument cluster, you should have an option to turn of high beam assist. Once off, just push the lever forwards for high beams, like on any older MB.
     
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  5. richard

    richard Authorised Forum Sponsor Authorised Forum Sponsor

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    You can also switch the lights away from AUTO to 'On' and then the high beam assist is temporarily disabled - of course the lights are now ON, but they don't get left on when you switch the engine off.
    (It was this that caused my MB dealer to replace the headlamp assist camera on my last car, I realised this after picking up the car !!)

    Richard
     
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  6. C240Sport97

    C240Sport97 MB Enthusiast

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    ILS is only on if you push the lever away from you .. in normal position, it's just standard lights
     
  7. richard

    richard Authorised Forum Sponsor Authorised Forum Sponsor

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    I'll be a pedant here so no one gets confused later when reading this thread.

    Headlamp Assist is only on when you push the lever away from you.
    ILS is on as long as you have not switched it off in the cluster
    ILS does a lot more than Headlamp Assist and is about the way the lights move going round corners, based on speed, if there is fog (i.e you switched on fog lights etc)

    R
     
  8. C240Sport97

    C240Sport97 MB Enthusiast

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    by Headlamp Assist, you mean High Beam Assist

    I hadn't realised about ILS .. will check settings.
     
  9. OP
    OP
    carnut

    carnut Active Member

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    My conclusion is to leave ILS on in the cluster and light switch to "auto"...then override main beam ILS when required by switching the light switch to "on"
     
  10. richard

    richard Authorised Forum Sponsor Authorised Forum Sponsor

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    Yup. Mercedes sometimes call it "Automatic High-Beam Control" or "Adaptive High-Beam Assist" and probably various other things too !!

    Richard
     
  11. MWCLS

    MWCLS MB Enthusiast

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    Seems hit and miss my CLS Xenon did illuminate, however the C209 doesn't?
     
  12. Diesel Benz

    Diesel Benz MB Enthusiast

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    I had missed this option completely. Very useful to know if there would appear any need to switch high beams on manually. More likely to happen with the older W212.
     
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