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Re: Holagen bulb

owner-bmw-digest@domain.elided wrote:
> 
> From: "Jon R. Lewis" <LEWISJR@domain.elided>
> Date: Tue, 03 Sep 1996 10:44:14 -0500
> Subject: Holagen bulb
> 
> Help!  I just replaced a dead bulb in the passenger's side, low beam,
> headlamp in my '89 E30.  Instead of the 55 watt OEM bulb, I tried an 80
> watt bulb which is marketed by a well known, glossy-catalogued,
> aftermarket source.  I also replaced the driver's side bulb at the same
> time.
> 
> Installation was a snap (I've done this before and besides, its a
> no-brainer) but when I turned the lamps on, the passenger side
> illumination was dimmer than the driver's side.  I removed the both bulbs
> and the passenger bulb was VERY cloudy - smokey grey.  No problem
> with the new driver bulb though so I placed the old, driver's side, 55 watt
> bulb into the passenger lamp.  Both bulbs seem to work fine but,
> obviously, the driver's side is brighter given that is has an 80 watt bulb.  
> 
> What might I have done wrong?  I am careful not to touch or scratch the
> bulbs.  Could an electrical short cause the 80 watt bulb to cloud?  How
> about a surge?  Where do you recommend that I start troubleshooting?

Most likely just a bad bulb. A short wouldn't do anything but blow a fuse. A
voltage spike of any magnitude to damage the bulb is highly unlikely. If you had
touched the buld, or scratched it, the bulb would likely have broken.

Just replace it with a good quality one.


- --
Russ Poffenberger               Engineering Specialist
Schlumberger Technologies ATE   DOMAIN: poffen@domain.elided
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