190E Pilot Lights on Heater / Blower / Aircon controls

1982-1993 :180E, 190E, 190E 2.3, 190E 2.6, 190D 2.2, 190D 2.5, 190D 2.5 T
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crazycrowbar
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190E Pilot Lights on Heater / Blower / Aircon controls

Post by crazycrowbar » Thu 21 May, 2015 10:36 pm

Good Day to all the members on here!!
First poster, longtime reader..... first MB owner, very happy with me "Ole Mule"......Have driven BMW most parts of my life, this old lady crossed my way, very good condition, thought i should give it a go, well.........As I said my very first MB and not at all disappointed, although in car years a "oldie", (1988 190E 280 Km on the clock) drives better than much newer Jap cars......Except for a couple of small things that I hope to sort out with the help of the members on here......
So this brings me to my first plea for help and advice.......
Ok in short here is the story.....
When I first bought the car the pilot light that illuminate the left side heater knob with the "red" arrow, it didn't work, so I replace it with one that I bought from Autobahn.....
Works perfectly for a couple of weeks, until one night I wanted to use the heater, and the moment that i turn the knob to set the temp higher the pilot light that illuminate the "dialler", (that is the part what is coloured in red what indicates the temp setting) stop working......
The day before yesterday I bought another 2 little pilot light or very very tine little bulbs to replace, again from Autobahn.......
Did so, and it light up for about 5 seconds, I think I heard something or see something like a tiny little flash, I'm not sure, but all of a sudden all the pilot lights on all 3 dialers stopped working as well as those that light up the adjustment controls for the blower and the aircon.
I have checked, and double checked all the fuses in the fuse box in the engine compartment, and there ain't any fuses blown, and absolutely everything electrical is working fine on my car.....
Is there any members out there that can tell me what went wrong and how I can fix this?
Maybe another set of fuse or a relay somewhere on the inside of the car?
Sorry if I ask a stupid question but I am blessed to be one of those lucky fools who cant put a nail through a wall, what to say to work and fix a car......
Thanks in advance for the help!!

Regards,

Pierre
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Greg in Oz
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Re: 190E Pilot Lights on Heater / Blower / Aircon controls

Post by Greg in Oz » Fri 22 May, 2015 12:57 am

Don't buy MB parts from a typical auto parts store. In the case of these small bulbs they will very likely be incorrect (too high) wattage. Buy your parts from the forum sponsor (details at the top of the page). They will have the correct bulbs.

As to why they have all stopped working, if it's not a fuse I would suggest checking the rheostat that adjusts the brightness of the instrument cluster illumination (it also adjusts the illumination of the heater controls). Is the instrument cluster still lighting up? If not, try repeatedly turning the rheostat up and down as they often get dirty contact between the wiping contact and the resistance track.

PS. Just noticed in your photo that the fan speed and air-con slider controls have the wrong knobs fitted. The forum sponsor will also be able to supply you with the correct ones of those.
107023 - 350SLC: 1973, 3sp auto, icon gold, parchment MBtex (sold July 2012 after 29 years ownership)
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124090 - 300TE: 1992, 4sp auto, malachite (spruce green), black MBtex
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Ivanerrol
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Re: 190E Pilot Lights on Heater / Blower / Aircon controls

Post by Ivanerrol » Tue 26 May, 2015 4:57 pm

Depending on the production date of your car there maybe a fuse in the rear of your instrument cluster.
When I have access to a desktop I'll post a image of one
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crazycrowbar
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Re: 190E Pilot Lights on Heater / Blower / Aircon controls

Post by crazycrowbar » Wed 27 May, 2015 11:36 pm

Hello Greg in Oz & Ivanerrol
Thanks for your replies.
Im genuine lost here, Ive tried anything and more.....No luck, and yes I've played around with the rheostat that adjusts the brightness of the instrument cluster illumination......No luck.......Realised yesterday night that the lights on the widow switches is also dead.....
Ivanerrol can you please put that pic up you said is located at the rear of the instrument cluster?
If that fuse is ok any other ideas / suggestions?
Thanks guys......
BTW mine is a 1988 model.....I think the last ones without the side skirtings or whatever its been called.......

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Greg in Oz
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Re: 190E Pilot Lights on Heater / Blower / Aircon controls

Post by Greg in Oz » Thu 28 May, 2015 1:41 am

From memory, there is a fuse on the rear of the cluster that looks much like one of the small lamp holders only in red rather than black. I'm unsure what this fuse protects (never removed one to find out) but it may be worth checking.
107023 - 350SLC: 1973, 3sp auto, icon gold, parchment MBtex (sold July 2012 after 29 years ownership)
107026 - 500SLC: 1981, 4sp auto, thistle green, green velour
124090 - 300TE: 1990, 4sp auto, arctic white, cream-beige MBtex
124090 - 300TE: 1992, 4sp auto, malachite (spruce green), black MBtex
201024 - 190E-2.0: 1985, 5sp manual, black, black MBtex
201028 - 190E-2.3 Sportline: 1990, 5sp manual, arctic white, blue leather
201028 - 190E-2.3: 1992, 4sp auto, blueblack, grey MBtex
201028 - 190E-2.3 Sportline: 1990, 4sp auto, signal red, black cloth (parts car)
201034 - 190E-2.3-16 Cosworth: 1985, 5sp manual, blueblack, black leather
YG2S8 - Mini Clubman GT: 1972, 4sp manual, blue, parchment vinyl (my first car which I still own)

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AMG
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Re: 190E Pilot Lights on Heater / Blower / Aircon controls

Post by AMG » Thu 28 May, 2015 11:11 am

The red fuse only protects the instrument cluster, not the illumination circuit. That is handled in the fuse box on the drivers side under the bonnet, next to the brake booster. Be careful lifing the clear plastic lid off. they get old and brittle.

do yourself a favour and replace ALL of those ceramic bullet fuses with new ones, and NOT of the plastic bodied variety. The correct ceramic fuses can be purchased in Narva brand and have a copper or brass conductor. Hella also make these, but be aware that most of the larger retail auto parts chains will only stock the cheparse plastic bullets.

buy 2 packets of white, one packet of red and one packet of blue (There are usually 5 per pack, don't buy the blister packs with 2 fuses, you will need MANY more in the future)

The bulbs in the centre console should typically be replaced as a set. they are very low wattage bi-pin types - 12v 1.2W and they are FROSTED if OE. Replacements are typically clear. It doesn't particularly matter either way, but sylvania-osram manufacture the OE globes, and yes, they are made in germany.

The part number for the clear bulb 12v 1.2w is 072601012230
Screen Shot 2015-05-28 at 9.40.39 am.JPG
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Ivanerrol
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Re: 190E Pilot Lights on Heater / Blower / Aircon controls

Post by Ivanerrol » Thu 28 May, 2015 12:19 pm

Image
Image

Don't know about AMG's cars but that fuse in the red holder definitely powered some of the instrument cluster lights as well as the lights in the centre console and Heater control wheels

The true MB bulbs are only 1.2 watts while the ones you buy from the big barns are 5 watts.
Running 5 watt bulbs runs the risk of the plastic in the light sockets and fixtures melting.
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Departed
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crazycrowbar
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Re: 190E Pilot Lights on Heater / Blower / Aircon controls

Post by crazycrowbar » Thu 14 Jan, 2016 3:08 am

Insr Cluster Post 88.jpg
Inst Cluster Pre 88.jpg
Oi Oi Oi!!!

Some good news after a long time.....At last I've decided that I must do something about this problem, and with mercy from above and a thunderstorm from behind I've pulled the instrument cluster........not to hard to do but for someone like me who have never done something like this a bit scary......
The most difficult part was to unscrew the speedo cable.......Did that by removing the bottom cover that covers the steering arm . shaft into the firewall........
With the cluster out Ive stripped it completely.....(while I was there....LOL!!!) and cleaned every hook and cranny and the dials of the instruments itself.......
Long story short, as simple as replaced the little flat fuse as in the pics and WHALLA!!!!!.......Pilot lights working!!!!!

Lesson learned? Dont ever change the tiny little light bulbs in the instrument diallers with ones from the Auto shops......Never..............

Something interested that I've learned here......Apparently 2 different instrument cluster, one pre and one post 1988......
If mine was a pre 1988 and havnt had the red little thingy and fuse,,,,, and the same has happened, what where and how to fix it then?

My sincere thanks to everyone who helped me with this.......Thank you and much appreciated!!
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Re: 190E Pilot Lights on Heater / Blower / Aircon controls

Post by gjlockyer » Wed 20 Jan, 2016 4:09 am

Hi crazycrowbar, welcome to the forum and ownership of a W201! I now drive a W124 and appreciate the many differences, but I will admit to missing driving its smaller relation.
You've received good advice about making sure that the parts you buy are MB specific. As mentioned, the wrong globes can melt the plastic surrounds. I've seen the damage and it's not a pretty sight! Beware the other common substitutes - coolant and ignition leads. considerable problems arise with either.
For your info, my W201 was an August 1988 build, one of the first of the Series 2 updates with the plastic side panels and many other (small) changes. So a 1988 car could be either the upgrade or not, depending on the month.
Gary
1955 220a (1972-80) 1961 220SEb (1980-95)
1988 190E (2008-10/14) 1988 260E (11/2014-07/15)
1990 300E 2.6 (08/2015-07/17) Current car: 1991 300E 2.6

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