No Gauges or brake lights - PeachParts Mercedes-Benz Forum

Lonesome · #1 03-05-2008, 01:49 PM

It's a 79 300SD and to the best of my knowledge it all happened at the same time, any ideas? Oh, the oil gauge still works! : ) Thanks.

josh

#2 03-05-2008, 01:54 PM

Fuse.

Lonesome · #3 03-05-2008, 02:02 PM

oh yeah, I checked the fuses. (ceramic) and they seemed to look ok.

joey.dale · #4 03-05-2008, 02:29 PM

Replace it anyway. They can look fine and still be bad.

-Joey

Cr from Texas · #5 03-05-2008, 02:34 PM

Quote:

Originally Posted by joey.dale

Replace it anyway. They can look fine and still be bad.

-Joey

I read on another thread about old ceramic/aluminum fuses becoming bad at the contact point over time with the guaged section still intact. They were suggesting some newer ones with copper instead of aluminum. I found those sets on ebay (bronze).

Is that the way to go?

Charles

Kpmurphy · #6 03-05-2008, 02:48 PM

How about the large plug on the back of the instrumrnt cluster?
And yes change the fuse first. I would twist the fuse to get a good conection, then the fuse would have a circle cut in it on both ends, not good. I am now using the copper fuse.
300SD 1980

pawoSD · #7 03-05-2008, 03:34 PM

The brake lights and instruments share a fuse. It happened to me recently. Just replace the fuse.

Lonesome · #8 03-05-2008, 05:29 PM

Can anyone tell which fuse is the one? I have no manual or nothing inthe box telling me which fuse is which.

pawoSD · #9 03-05-2008, 05:30 PM

On the W126 its fuse 12 I think.....but it might be different on a W116....at a cost of about 6 cents apiece when bought online....you may as well replace all of them.

rrgrassi · #10 03-05-2008, 05:58 PM

Just do not get the plastic bodied fuses.

Cr from Texas · #11 03-05-2008, 06:12 PM

Quote:

Originally Posted by rrgrassi

Just do not get the plastic bodied fuses.

Now you tell me!

I didn't know they came in anything but ceramic. The listing doesn't say so I guess I'll find out when they arrive. What's the problem with the plastic body ones?

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&sspagename=ADME%3AB%3AEOIBSAA%3AUS%3A31&viewitem=&item=290211630634

Charles

Kpmurphy · #12 03-05-2008, 06:46 PM

Quote:

Originally Posted by Lonesome

Can anyone tell which fuse is the one? I have no manual or nothing inthe box telling me which fuse is which.

#4
8 white

toomany MBZ · #13 03-05-2008, 07:09 PM

Quote:

Originally Posted by Cr from Texas

What's the problem with the plastic body ones?

Charles

Nothing, those in the link are the ones I have in both of my cars. Plastics today are a different animal from years ago.

Lonesome · #14 03-08-2008, 09:02 PM

Thanks guys!!

pawoSD · #15 03-08-2008, 11:46 PM

We used a plastic 8A we found in the glove box of our 300D to replace a blown fuse and its been working just fine....its a little longer than the ceramic ones though. We'll throw in a ceramic one next time we're working on it just so it fits properly.... But its been fine so far...