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EC button/switch flashing on 300TE

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by thatfatbloke, Dec 11, 2012.

  1. thatfatbloke

    thatfatbloke Senior Member

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    Your Mercedes:
    2005 C320 CDI SE estate (wife). 2001 230 CLK (me).
    Just a quicky. Tried a search to no avail. I noticed the other day that the red light on the EC button was flashing. It flashed for around 15 minutes then turned back to solid red. No mention of this in the handbook either. Any ideas?. Ta.
     
  2. turbopete

    turbopete Senior Member

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    if it has air con it could be trying to tell you it needs regassed IIRC
     
  3. television

    television Always remembered RIP

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    As Pete, it needs gas I think
     
  4. star

    star Forum Supporter Authorised Forum Supporter

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    Is it oe air con? Never seen this on mb air of that year car.
     
  5. television

    television Always remembered RIP

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    Yes I did have to think about that, one can do a self check with the heater controls
     
  6. OP
    thatfatbloke

    thatfatbloke Senior Member

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    Your Mercedes:
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    Not sure whether I have aircon or not now!. Assumed that the EC button was a simple aircon on/off switch,now I've studied the handbook I haven't got a clue as it's very confusing and I gave up very quickly. I must admit I don't remember seeing any notices referring to the aircon when last under the bonnet,and wouldn't know an aircon compressor if it fell on my melon. I shall endeavour to have a look a bit later on. Does the vin number not tell you what you've got and what you haven't?.
     
  7. OP
    thatfatbloke

    thatfatbloke Senior Member

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    2005 C320 CDI SE estate (wife). 2001 230 CLK (me).
    By the way,the red light was flashing again this morning. Just a thought,it couldn't be telling me that the outside temperature is 0 degrees could it?. My car hasn't got the usual outside temperature display I've had on all my other Merc's,just a black 'nothingness'. Must have been an option when I thought they were standard.
     
  8. OP
    thatfatbloke

    thatfatbloke Senior Member

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    A couple of pics of the relevant bits. P1060167.JPG

    P1060168.JPG
     
    Last edited: Dec 12, 2012
  9. OP
    thatfatbloke

    thatfatbloke Senior Member

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    Your Mercedes:
    2005 C320 CDI SE estate (wife). 2001 230 CLK (me).
    Now I've had more time to read the handbook it appears that when the red light is illuminated on the EC button it means that aircon is off. But strangely enough when the red light is illuminated on the dehumidifier button (the one situated
    immediately above the EC button) it means the dehumidifier is switched on!. I tried the aircon the other day and it certainly blows quite cold,so I assume I have aircon despite the fact that a lot of peeps think it wasn't fitted to old nails like mine.
    Was the outside temperature gauge an option then as I thought they were standard?. I've had it on all my other Merc's. Thanks for your replies.
     
  10. television

    television Always remembered RIP

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    If you have an outside temp probe its just under the front bumper, a little towards the passenger side.
     
  11. huey

    huey Senior Member

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    If the button has the symbol EC then it is oe, if the button has a snowflake then it is aftermarket.

    AFAIK the outside temp was an option.
     
  12. star

    star Forum Supporter Authorised Forum Supporter

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    Some kits used oe buttons and cut the wood/veneer to look oe.
     
  13. television

    television Always remembered RIP

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    That heater though is OE
     
  14. robparker

    robparker Senior Member Authorised Forum Supporter

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    Easy to tell if its not oe by taking that control panel out, on the non-factory ones those 3 buttons are seperate to the reat of the panel with a lead going (usually) into the passenger footwell where the relay for it is, oe ones are just a complete unit as you would expect with the relay under the bonnet. Of course the chassis number will tell you
     
  15. star

    star Forum Supporter Authorised Forum Supporter

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    As above and easy to tell under the bonnet. No relays or fuses should be seen if oe. looking closely, i would say it has non oe a/c as the hole for the buttons has been cut out and have a sharp edge whereas the factory oe trim hole is smooth.
     

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    Last edited: Dec 18, 2012

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