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Old 12-18-2000, 09:05 PM
Registered User
Join Date: Nov 2000
Location: Houston, TX, USA
Posts: 185
Hello Everyone...

In my 92 400E, I replaced my crappy stock MB headlight and foglight bulbs with high wattage PIAA Super Plasma bulbs. For about a month everything worked fine, but then one day I had my headlights and foglights on for about 3 hours. Inside the car, the "Lamp Out" indicator came on, which stayed on even when I turned all the lights off. This "Lamp Out" light turned off with the key off, but as soon as I turned the key on again and turned the lights on, it came back on again. After a few minutes I found I blew the Foglight (Front & Back) fuse. From then, the "Lamp Out" light stayed off. Well, last night, without my foglights on, I saw that stupid light again, and it stayed on even with the headlights off, unless i turned them off AND the key off. The headlights are working fine,even though "Lamp Out" light is on and the plug for the headlights is not getting hot. Am I overloading the circuits with these bulbs somewhere and is that why the foglight fuse blew. Am I about to blow the headlight fuse? Is there any remedy (other than putting my sissy bulbs back in) to this problem???
Thank Millions.....Peter B.

Peter Balias
1992 400E
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Old 12-19-2000, 12:11 AM
need2speed's Avatar
Join Date: Dec 1999
Location: Edmonton, Alberta, Canada
Posts: 1,253
Hella and Philips make replacement bults of stock wattage that produce 30% more light output using xenon gas. They are cheap and don't cause any electrical problems. I've been running the Philips bulbs for a year without difficulty and the light is noticeably whiter than other cars (but not that blue color of xenon lights).

Check out
Dean Albrecht
"Lead, follow, or better yet, get out of the way!"E500 owners motto
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Old 12-20-2000, 06:42 PM
need2speed's Avatar
Join Date: Dec 1999
Location: Edmonton, Alberta, Canada
Posts: 1,253

The part number was #12342PR, Philips H4 Premium Blub-With Xenon. List price $16.95 Cdn.

Also Hella H4 +30 Bulb (Xenon-filled), part #78150, list price of $27.49 Cdn.

BUT WAIT: sells the Philips Xenon HID conversion kit for $590 US! Someone buy it and let us know how good it is. :p
Dean Albrecht
"Lead, follow, or better yet, get out of the way!"E500 owners motto
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Old 12-22-2000, 08:48 AM
ebennz's Avatar
Join Date: Nov 2000
Location: Hurricane, West Virginia
Posts: 878
hi peter,

why don't you just go for a nice set of bosch or hella euro headlights? you'll never have to overload your lights again.

if you need higher wattage euro bulbs go w 80/100 watt.
just a thought...

it is your baby...
*92 400e 124.034, SOLD

*92 300e 124.030, SOLD
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Old 12-22-2000, 07:12 PM
Registered User
Join Date: Apr 1999
Location: Cincinnati, OH, USofA
Posts: 139

Pull the connectors on your bulbs, You'll see there already starting to burn up the little connectors to ground.
Want to ask me how I know?

If you want to run these high wattage bulbs then you must run a relay connected setup.

Mike Mullins
03 911 Targa 35K
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Old 12-23-2000, 12:44 AM
Posts: n/a
El Cheapo Headlights

To All, I have directions and parts list for using the 100/80 watt bulbs in a W124030. This encludes the larger gauge wire an double contact relays. Contact me at my e-mail. There is no charge ofcourse. Quite a few MBCA members use this technique. Works pretty good. Happy Trails Beep Beep from Houston.

they ain't Euros they is El Cheapos

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