Dahboard and climate control lights

Discussion in 'Electronics' started by DRBC43AMG, Jun 9, 2015.

  1. DRBC43AMG

    DRBC43AMG Hardcore MB Enthusiast

    Messages:
    1,079
    Joined:
    Mar 15, 2010
    Location:
    Switzerland, Sion (VS), the canton of mountains, w
    Car:
    99' C43 AMG "T Rex", 00' Renault Twingo1, Ultima Sports Can-Am
    My 98' W202 C240T no longer has operating lights in the dashboard nor climate control panel. Both operate together I assume. The instruments work fine. I have checked the fuses but can't find anything blown.
    Any pointers?
     
  2. kid-jensen

    kid-jensen Hardcore MB Enthusiast

    Messages:
    1,132
    Joined:
    Dec 16, 2002
    Location:
    Epsom Downs
    Car:
    ML 320 W164
    Dash illumination lamps have a hard life and don't actually last that long.

    If you can get the controls/panel out, check there's 12V (ish) on the bulbs and proceed accordingly.

    If you have a dimmer, it might be more easily accessible. Measure the output side to see if the volts go up and down with dimmer movement. If it does, the problem is almost certainly blown bulbs.

    They may not be push-in types, but wired-in. It doesn't matter, both types are available very cheaply on Ebay.
     
  3. ahok19

    ahok19 Banned

    Messages:
    147
    Joined:
    Mar 9, 2015
    Car:
    audi r8
    Can you show me link it? [​IMG]
     
  4. OP
    OP
    DRBC43AMG

    DRBC43AMG Hardcore MB Enthusiast

    Messages:
    1,079
    Joined:
    Mar 15, 2010
    Location:
    Switzerland, Sion (VS), the canton of mountains, w
    Car:
    99' C43 AMG "T Rex", 00' Renault Twingo1, Ultima Sports Can-Am
    Can all the dash and climate control bulbs blow all at the same time? Bizarre indeed. I have never had to change a cluster bulb since owning the vehicle. One or two instrument bulbs yes, not the others.
     
  5. kid-jensen

    kid-jensen Hardcore MB Enthusiast

    Messages:
    1,132
    Joined:
    Dec 16, 2002
    Location:
    Epsom Downs
    Car:
    ML 320 W164
    ahok19,

    Sorry, ebay is blocked here, but search for something like "dashboard lamps" or "Instrument lamps" or "12v 40mA lamps"...you get the idea.

    The last time I bought some they were 99p for 10!

    At that price, it's worth buying a few different types, so you don't have to take the dash apart twice.

    Every secondhand car I've bought, without exception, has had some dashboard/instruamnt lamps not working. Generally, thay fail in such a way that the illumination level just gets dimmer or uneven, so not often noticed until the last on fails.

    If you ever get a bulb failure in the cigar lighter of a W164, I'd have a stiff drink waiting for you when you finish that particular job!

    Assuming you actually finish it!
     

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