Quad Quartz Conversions

5-3/4″ Options: quad quartz conversions are much less involved. Both high and low beam units are single bulb and single reflector, both using the H1 bulb. What changes is the beam pattern, through lens design, and bulb placement within the reflector. Quad...

Q1 Headlight Installation and Rust Prevention

Since BMW changed the grille design around the headlights in 1972 and again in 1974, rain water or car wash spray can flow past the headlamp housing and, in the case of QI lights, seep past the bulb dust shield and into the reflector area. Not that much moisture will...

Important Q1 Light Relay Information

I’ve mentioned using fused relays for QI (Quartz-Iodine) lamps before, but the caution is worth repeating. Make sure you use a fuse link in all QI lighting systems! For some reason, BMW tends to fuse the low-beam circuits, but not the highs. (On pre- ’72...

Quartz-Iodine Replacement Bulb Information

When you need a new replacement element for one of your quartz-iodine lights, or wish to keep a spare light bulb in the glove compartment, you do not have to use a Marchal in a Marchal, a Carello in a Carello, etc. Most replacement elements available in this country...

Alternative Low Cost BMW 2002 Rear Fog Light

Here’s a low cost rear fog light solution for your prized BMW 2002. K-Mart has an inexpensive amber light (#82-20-53) called “rectangular fog lamp” for $4. An orange replacement switch from your BMW dealer (#61311356873) costs $6.70 or you can use...

Primer On Quartz Iodine (QI) Headlights

If you’ve been a reader of the Roundel for any length of time, no doubt you have noticed occasional references to quartz iodine (QI) lights. You may have wondered what they are, what they can do for your BMW 2002, and how to install them. This article is...