Mercedes-Benz Forum banner

1 - 8 of 8 Posts

·
Registered
1987 Mercedes 300e
Joined
·
400 Posts
Discussion Starter #1
In my 1987 300e, only the dome light works. when i open the door, all the normal lights turn on as they should. but when i went to go drop off my little brother at a sleepever tonight, none of the lights turn on such as the backlight for the dashboard like the speedometer/fuel tank/ and oil pressure. none of those lights work. in addition, none of the light for the temperature control such as a.c and heater don't work as well as the radio lights. i have tried moving the dimmer and that does nothing. my guess is that it is a blown fuse... shoudl go ahead and replace all fuses right now because of wear??? any other possibilities to why this might happen? oh all the functions work, i brought a flashlight and checked that they all work, radio works fine, ac works fine and so do all the gauges... ideas??
 

·
Registered
500E, E320, 190E, E55
Joined
·
1,006 Posts
Keep us posted on your fix. I have no center console lights but my gauges are still lit. All fuses and connections are OK, I really don't have an explanation?? 89'300e
 

·
Registered
1987 Mercedes 300e
Joined
·
400 Posts
Discussion Starter #3
ok.. well i looked into my fusebox and found out there was no fuse at all for fog lights so i put one in and now they work :) they are tooo yellow though, icky. ill work on that later, maybe they will be super high beams... the possibilities!! well for the third fuse which is for :

parking/taillight right,headlamp cleaning unit, Illumination : license plate, instrument,control climate

ok when i looked in, this was fuse was blown. so i replaced it with the correct one, i forget the value but it was the white one, and when i put it in, i checked again later tonight and it was blown yet again. i am thinking this could be the cause of the license plate light not working, as well as all the inner lights and right brake light.... so what are the causes the the fuse being blown? can this be a diy project? any ideas would be appreciated.
 

·
Registered
1989 Brabus 3.6
Joined
·
36 Posts
There must be a short ciruit in one the circuits the fuse serves causing it to blow. I've just resolved a lack of instrument illumination problem. When you remove the instrument cluster you can see some soldering on the rear of the dimmer. Mine had come apart needing resoldering. I'm guessing if this happened to your car and shorted it could cause your problem. Diagnosis of this sort of problem can unfortunately be very long [B)]. Good luck!
 

·
Registered
1987 Mercedes 300e
Joined
·
400 Posts
Discussion Starter #5
ok.. so the license plate light and the trunk light have always been out.. but the instrument and climate control and radio just went out.. ( lights ) those seem to be more important to me. so ill check the wires there. any idea how to take it off so i can take a look at it? any special tools needed?
 

·
Registered
1989 Brabus 3.6
Joined
·
36 Posts
To remove the instrument cluster you need a special tool, p/n 140 589 02 33 00 about £8 ($15). Before pulling the cluster you must undo the speedo cable from the bottom left side of the transmission by removing the 10mm bolt then pulling the speedo cable out. Remove the drivers kickpanel pull the cluster as best you can then undo the speedo cable from behind the instrument cluster. I recomend signing up to http://www.alldatadiy.com/ and using the data there. It's a great source of info. It helped me set the timing on my uncle's S500 (M119 engine) when the dealers would't give me the required info! Good luck [;)]
 

·
Registered
1987 Mercedes 300e
Joined
·
400 Posts
Discussion Starter #7
wow, you are very very helpful. im scared to do this as i have never done anything like this.. should i start this as my first project?
 

·
Registered
1989 Brabus 3.6
Joined
·
36 Posts
Well as long as you're careful with everything I doubt you'll break anything. If you have wood trim on the dash near the lower part of the instrument cluster be careful not to damage it making sure to use a screwdriver to allow the cluster to slide over the trim. This was the first time (hopefully the last, unlikely due to soundsystem though) I removed the instrument cluster. But if you really don't feel confident about it I guess a good independent is your best bet. Provided they're electronically competent as this really isn't a mechanics job. A good inpendent garage should have a specialist who'll come in to efficiently sort out such problems though.
 
1 - 8 of 8 Posts
Top