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  #1  
Old 03-08-2000, 12:02 PM
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Join Date: Feb 2000
Location: Columbus Ohio
Posts: 709
I have a 1992 140 car(s-class).The light that shows the LCD temperature and the climate "wheel" went out. I have been told there is no bulb replacement for this unit. You have to replace the whole push button unit...which is $1400.00. I find that hard to believe....any ideas? Somehow putting 1400.00 plus labor for a bulb in an 8 year old vehicle seems crazy
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  #2  
Old 03-08-2000, 01:01 PM
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W140 Maniac
 
Join Date: May 1999
Location: Burnaby, BC, Canada
Posts: 960
I believe it's the only way. Though changing bulbs inside the unit can be done, the labour and time needed to do the work just doesn't worth it, and might as well cost as much as a new, whole unit. The other solution is to find a replacement(used) and/or rebuild(if there are any)unit. May help to cut down the costs.

W140s are very unique cars, and it's a small compromises we, as owners, have to take...

Andy Kuo

------------------

  • 1992 Mercedes-Benz 400SE
  • Moonstone Grey/Black Leather


ICQ#26950002
Mercedes Owners ICQ ActiveList ID#61730549
http://drive.to/akry
http://akry.homestead.com
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  #3  
Old 03-08-2000, 08:36 PM
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Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Wrong!! the bulbs can be replaced. There are 2 different brands of pushbuttons, so the bulbs are accesible in different ways. On the Bosch brand they can be removed w/o removing the unit, on the Kammer brand the unit must be removed. Find a dealer or ind repair shop that knows something about the car.

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MERCEDES BENZ MASTER GUILD TECHNICIAN
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. TECH
190E 2.3 ITS RACECAR

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  #4  
Old 03-08-2000, 11:05 PM
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Join Date: Jun 1999
Location: Surrey, Beautiful British Columbia, Canada
Posts: 750
i'm not sure how unique the climate control unit of the s-class is, but i replaced the light bulbs of my e-class recently to the tune of two bucks (light bulbs) and fifteen minutes of my time. cheers!!
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  #5  
Old 03-09-2000, 12:21 AM
Senior Member
 
Join Date: Apr 1999
Location: Walnut,CA,USA
Posts: 554
Yes,It can be done with 2-3 hours fine work & skill.I have done four of PBA that need bulb replacement.Make sure your mechanic replace all PBA bulb at same time.Because you don't want that happen to you again.(bulb are cheap) good lock to you.

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MB STARS Master Guild Technician,12 years MB tech
6 years independent shop owner
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  #6  
Old 03-09-2000, 02:26 AM
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W140 Maniac
 
Join Date: May 1999
Location: Burnaby, BC, Canada
Posts: 960
I didn't stated it CAN'T be done, but that it may not worth the time and labour MB charges us....how much is 3 hour labour??? My cheapest local dealer will charge me $240...

Who knows what they will charge.....

Andy Kuo

------------------

  • 1992 Mercedes-Benz 400SE
  • Moonstone Grey/Black Leather


ICQ#26950002
Mercedes Owners ICQ ActiveList ID#61730549
http://drive.to/akry
http://akry.homestead.com
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  #7  
Old 03-09-2000, 10:16 PM
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Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Read post again, the bulbs in the Bosch unit can be replaced w/o removing the pushbutton control unit. .5 hrs of flat rate time MAX. For the record R & R time of A/C control unit is only .8 hrs & .2 hrs to install bulbs. Even at $80 a hour it doesn't add up to $800 for a new unit. Not every body in this business is trying to make a fortune.

------------------
MERCEDES BENZ MASTER GUILD TECHNICIAN
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. TECH
190E 2.3 ITS RACECAR

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  #8  
Old 12-15-2002, 01:02 PM
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Join Date: Oct 2002
Posts: 188
Hi there:

I have a w140 automatic climat control (the old 3 turn dial type with 2 big AUTO buttons). I think my light went out on the dial and the temperature display!

I think I can figure out how to get to the unit and access the bulbs from there, but:

1) Can anyone please tell me what bulbs they require? Are they easily accessible/install or are they special ones where I need to solder them in?

2) Will it hurt the computer if I unplug the unit from the car for sometime? i.e., unplug it, take it home and fix it there?

3) Does anyone know how to fix buttons that have gone stubborn!

Any help will be appreciated.

Thanks
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  #9  
Old 12-16-2002, 10:52 PM
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Join Date: Oct 2002
Posts: 188
Unhappy

any body can advice???? PLEASE!!!
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