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Old 01-08-2017, 02:08 AM   #11
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Default Re: Heater control bulb replacement ?




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Old 01-08-2017, 06:50 AM   #12
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Default Re: Heater control bulb replacement ?

Quote:
Originally Posted by One call a/c View Post
Pics

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Perfect!!!

THANK YOU!

I'll be able to re-use the base by replacing the lamp one way or the other. NOPE! Close clearance and OEM design bested me.
Quote:
Originally Posted by Aqua Puttana View Post
*** 20170814 Update:
Skip down to 3 each lamps.
...

These do fit perfectly!!!
Mercedes Dashboard Instruments Bulb Green + Clear
12 volt 1.3 watt (3 each/package)
Mercedes part# 000000 000977

https://www.amazon.com/gp/product/B00KL4VNCO

Note: OEM are 2 watt, these are 1.3 watt so the ATC backlight is a bit dimmer. I actually prefer dim dash illumination.

I checked Europarts SD. Nothing listed that I found.

vic


Maybe with an LED, but polarity is probably not indexed on the lamp twist base.

12volt2WattATCnotes.jpg

vic
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Old 01-08-2017, 01:34 PM   #13
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Default Re: Heater control bulb replacement ?

I used two leds. But soldered them to the pads. I couldn't make it happen using the old base with the leds I had. But the positive is closest to the bottom. And also you have to use at least one of the terminals your pointing to to make the positive connection from the right to the left. The circuit comes in from the right bulb bottom side of the board and uses the connector shown to transfer 12v + to the top side which then leads to the left side bulb.


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Old 01-08-2017, 01:39 PM   #14
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Old 05-29-2017, 02:38 PM   #15
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Default Re: Heater control bulb replacement ?

While messing with tying in to my 2006 ashtray/cigarette lighter circuit I noticed that the cigarette lighter lamp for the light ring looks similar to the lamp assemblies in the ATC unit. I'm thinking that I can steal one of those useless lamps from each of my Sprinters and install them in my 2006 ATC unit. Does anyone know if those lamps are the same?

Here is a picture that pretty clearly shows the light tube design used to distribute the ATC backlighting.
Photo credit goes to NorthSands.

ATClamp.jpg

vic
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Old 06-01-2017, 12:08 AM   #16
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Default Re: Heater control bulb replacement ?

I can now answer my own question.

Quote:
Originally Posted by Aqua Puttana View Post
... Does anyone know if those [cigarette lighter] lamps are the same?
...
vic
The cigarette lighter back lamps are completely different. No love there.

I did learn some things by removing my 2006 ATC panel.

* It is not necessary to split the ATC unit apart to replace the lamps. The ATC module does need to be freed though. That requires removing 2 ea. electrical connectors, and 2 ea. cables.

* The lamps can be twisted to the removal position by using a small screwdriver. The lamp assemblies can then be popped loose and shaken out using mean old Mr. Gravity. For the one lamp I did disconnect the heavy brown wire to move that wire out of the way. The small screwdriver worked for re-install... with some patience. Added: A bit of review showed that bc339 Bruce already covered the screwdriver use suggestion.

* It still may be worthwhile to take the front 1/2 cover off. It is just a bunch of small plastic clips to release. That allows proper cleaning of the little thermistor fan. Mine was pretty much plugged with lint/dust (2006 approx. 147,000 miles in medical transport service). It definitely needed cleaning. It may have not even been spinning before cleaning.

* While apart use your lubricant of choice to lube the air flow selection knob mechanicals and also the cables. (On mine the white sheathed cable was in the front position - closest to you. White = white lever. Black = black lever.)

* The back light lamp on the Espar Programmable Timer is the same lamp as the ATC module lamps (12 volt 2 watt). The Espar lamp is very easily accessed and makes a good method to test the fit of any lamp replacement part before taking everything apart to access the ATC unit. The Espar timer is labeled Hella if that helps any.

I wasn't successful in adapting any of my lamps to the OEM holders. The lamps are quite tiny. I did use some leads to cobble a couple of on hand lamps into position. The sensible answer is to use OEM type lamps.

I still have not 100% identified the exact aftermarket replacements by generic number.
I did find some. See post #17 below.

Possible - Using Hella from Espar Programmable Time.
http://cat.hella.com/web/public/hella/en_GB/700000/700201/Lights-%2BSignal%2BSystem/$catalogue/2/$product/8GS%2B006%2B677-121_2776/index.xhtml;jsessionid=D5D44F1BCA59A0B070BA544518E 50E05

12 volt 2 watt
https://www.amazon.com/Bulb-12V-Inst.../dp/B009PQ82I2


12 volt 1.5 watt
https://www.amazon.com/Mercedes-Bulb...dp/B00D2KKPW8/
My reply to a PM asking why these are crossed off the list.
"My sometimes faulty memory recalls that the base design is a bit different and sticks out too much. I believe that those lamps will work in the one ATC lamp holder, but not in the more restricted one. It may even interfere with the cable lever action."

Update.
Those 1.5 watt lamps were purchased and are reported to fit.
Another source. Thanks goes to Rickpcmp3.

Osram 62111391260 Instrument Panel Light Bulb
https://www.ebay.com/itm/Osram-62111...53.m2749.l2649


vic
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DAD NAS (N. Amer. Spec) 2004 140 2500 >330,000+ mi. Arctic Whitewash Brush-tone Grey
2006 Freightliner 140 2500HC >183,000+ mi. Arctic Whitewash (Spotted Snow Leopard accents)
"My opinion and worth everything you'll never pay for it." assumed.
Anyone can hold the helm when the sea is calm. Publilius Syrus
"There are only 10 types of people in the world: Those who understand binary, and those who don't." HaWiiLuVeR
16 ounces of unnecessary prevention can be worth a pound of manure.

Last edited by Aqua Puttana; 02-03-2019 at 06:45 PM.
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Old 06-13-2017, 03:19 AM   #17
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Default Re: Heater control bulb replacement ?

*** 20170814 Update:
Skip down to 3 each lamps.

I found relatively inexpensive lamps on Amazon. $6.02/2 ea.

Bulb (12V - 2W) - Instrument Cluster with Green Socket Base
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1


The lamps I received aren't exact replacements, but they do fit. It will fit the one that isn't under the cable control knob. The green base sticks up too high and keeps the knob from rotating to the dash vent position. The good news is that the lamp does fit the Espar Aux control unit.
***

The green plastic base protrudes out further than the OEM lamp assemblies do. The Amazon lamps do not have the screwdriver slot option. That sounds like no big deal, but it did make it more difficult to install the lamps. I used a pair of laboratory tweezers/forceps. It was difficult to set the lamps into place and twist to set into position. A screwdriver slot would make it much easier. Thin needle nose pliers would work. Typical needle nose pliers probably would not work well.


There was no need to disassemble the ATC halves to install these *almost correct* lamp units or the lamps I list below.


12 volt 1.5 watt
https://www.amazon.com/Mercedes-Bulb...dp/B00D2KKPW8/
My reply to a PM asking why these are crossed off the list.
"My sometimes faulty memory recalls that the base design is a bit different and sticks out too much. I believe that those lamps will work in the one ATC lamp holder, but not in the more restricted one. It may even interfere with the cable lever action."

Update.
Those lamps were purchased and are reported to fit.
Another source. Thanks goes to Rickpcmp3.

Osram 62111391260 Instrument Panel Light Bulb
https://www.ebay.com/itm/Osram-62111...53.m2749.l2649



These do fit perfectly!!!
Mercedes Dashboard Instruments Bulb Green + Clear
12 volt 1.3 watt (3 each/package)
Mercedes part# 000000 000977

https://www.amazon.com/gp/product/B00KL4VNCO

Note: OEM are 2 watt, these are 1.3 watt so the ATC backlight is a bit dimmer. I actually prefer dim dash illumination.

I checked Europarts SD. Nothing listed that I found.

vic
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DAD NAS (N. Amer. Spec) 2004 140 2500 >330,000+ mi. Arctic Whitewash Brush-tone Grey
2006 Freightliner 140 2500HC >183,000+ mi. Arctic Whitewash (Spotted Snow Leopard accents)
"My opinion and worth everything you'll never pay for it." assumed.
Anyone can hold the helm when the sea is calm. Publilius Syrus
"There are only 10 types of people in the world: Those who understand binary, and those who don't." HaWiiLuVeR
16 ounces of unnecessary prevention can be worth a pound of manure.

Last edited by Aqua Puttana; 02-03-2019 at 06:46 PM.
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Old 08-18-2017, 02:10 AM   #18
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Default Re: Heater control bulb replacement ?

Update.

Quote:
Originally Posted by Aqua Puttana View Post
...
These do fit perfectly!!!
Mercedes Dashboard Instruments Bulb Green + Clear
12 volt 1.3 watt (3 each/package)
Mercedes part# 000000 000977

https://www.amazon.com/gp/product/B00KL4VNCO

Note: OEM are 2 watt, these are 1.3 watt so the ATC backlight is a bit dimmer. I actually prefer dim dash illumination.
...
The other day I used the stalk switch on the 2004 to activate the headlamps and ATC back lights. My normal mode with the 2004 is to use the DRL aka Daytime Running Lights feature at night. The DRL turns on the headlamps and the running lights, but not the dash back lighting. (That is why my original 2 watt OEM lamps are still working. They see little service time.)

Anyway, today I compared the 1.3 watt lamps in the 2006 to the 2004 2 watt OEM lamps. As would be expected the 1.3 watt lamps weren't as bright, but they still lit everything well enough to see. Were I not looking for the difference I probably wouldn't have noticed.

vic
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DAD NAS (N. Amer. Spec) 2004 140 2500 >330,000+ mi. Arctic Whitewash Brush-tone Grey
2006 Freightliner 140 2500HC >183,000+ mi. Arctic Whitewash (Spotted Snow Leopard accents)
"My opinion and worth everything you'll never pay for it." assumed.
Anyone can hold the helm when the sea is calm. Publilius Syrus
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16 ounces of unnecessary prevention can be worth a pound of manure.
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Old 10-25-2017, 02:54 AM   #19
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Default Re: Heater control bulb replacement ?

Just replaced the bulbs in my control. I made a wrench with a cut off wheel witch made the change easy. I was able to change one of the bulbs with a small screws driver. The tool took five minutes to make and the bulb change two minutes. Bulbs cost - $1.48 each and cables $9.99 each.
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Old 01-18-2018, 05:54 PM   #20
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Default Re: Heater control bulb replacement ?

Finally will deal with black hole on the dash too. For those in BC , lordco has bulk FLOSSER bulbs behind the counter. 1.3 watt 479103 mercedes , and 2 watt vw 439103 - $4-5 each. Went with the 2 watt.
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