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outside temperature---can't see it well

1074 Views 4 Replies 3 Participants Last post by  2kprwlr
O.K....I went to the useful string on problems over the last seven yearas and learned how to get the instrument cluster out. Checked all the bulbs and found they were all fine! Still, the outside temp gauge is dim, and only for the last few days. I didn't see any way to adjust or fix it back there.
Any advice?
Thanks,
Grant
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1995 S420
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553 Posts
O.K....I went to the useful string on problems over the last seven yearas and learned how to get the instrument cluster out. Checked all the bulbs and found they were all fine! Still, the outside temp gauge is dim, and only for the last few days. I didn't see any way to adjust or fix it back there.
Any advice?
Thanks,
Grant
Simply put the bulb light is out
 

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1994 S420
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13 Posts
Discussion Starter · #3 ·
Re: Re: outside temperature---can't see it well

[/quote]

Simply put the bulb light is out
[/quote]

So is there a way to replace it or does the whole digital temp readout need replacing?
Thanks,
Grant
 

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92 400SE, 93 400E, 01 CLK320, 01 ML320, 98 Land Rover Discovery
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201 Posts
Adjust the steering wheel to lowest position. Disconnnect the battery. As stated above, us...

Adjust the steering wheel to lowest position. Disconnnect the battery. As stated above, use the tools to gently nudge out the cluster. It's held in place by 5 pressure wedges. Remove 4 plugs on the back. There is no speedo cable to deal with. Take the cluster into the house and set it down on a clean towel to avoid scratches The temp LCD unit is on a plug in circuit board and comes out the front of the cluster. Remove ONLY 2 screws which hold the clear front assembly to the main unit. You'll see which ones when you have it in front of you. Pry at 5 plastic snaps to remove front. Grasp the LCD and gently pull forward; maybe wiggle a bit. The lamp is soldered into the circuit board. Use solder sucker and very low wattage iron to remove old bulb. It's a very delicate circuit board. Replace bulb with 60 ma wire lead bulb from Radio Shack ( 2 for $1.29 ) It's a bit smaller physically, but it will work just fine. Now put it all back together. About a 1 hour job. ( Not counting the trip to Radio Shack )

Hope this helps... It's a copy from Tod on another MB forum.

Russell
 
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