BMW Fog Light Kit for the 2.3 Z3

When I bought my ’99 2.3 in March from dealer stock there was one option missing that I would’ve ordered – fog lights. I had considered after market PIAA’s. But when BMW came out with a retrofit kit, I ordered one right away. And the installation is pretty easy, since the car is pre-wired from the fog light connectors all the way to the switch connection behind the dash.

The part # for both 1999 and 2000 Z3s is 99 00 0 001 658. The suggested retail is $229, but they are available from Circle BMW for about $161 plus shipping (www.circlebmw.com)

The kit comes with easy to follow instructions that are well illustrated. The only tools required are simple hand tools, but a hook awl is handy to remove the existing fog light mount covers. I’m not very handy with tools around the house or cars. I usually have to be retrained each time I remove or replace my Stonegards. So I got a friend to help me, and I’m glad I did. Despite interruptions for picture taking and running into a glitch or two, it took about 50 minutes from unpack to drive away.

The preparatory instructions called for disconnecting the battery ground cable, but we decided against it to keep from reprogramming the anti-theft radio.

I began by removing the plastic fog light mount covers with a small pick bent to form a hook awl. They pull out easily.

Install the silver Tinnerman clips over the fog light mount as shown with the smooth surface facing you. (LH light opening shown.)

The RH fog light connector is located behind the bumper adjacent to the receiver dryer. Pull up on the wiring harness to cut the tape holding the connector to the harness. The instructions said to secure any other connectors that were loose with cable ties (not provided) to prevent wire chaffing or interference with the A/C compressor pulley. This did not appear to be a problem so we skipped it. Then pull the connector through the opening and push the RH fog light connector into the RH fog light assembly.

Position the RH fog light assembly in the opening and press the assembly flush against the Tinnerman clips. Then secure with two of the 4.2x16mm hex head screws provided.

The LH fog light is installed in the same manner, except there was no need to secure any wires with cable ties.

To access the fog light switch connector you have to drop the driver’s side lower trim panel (knee bolster). With a small screw driver, pop off the caps that cover five M6x12 hex head bolts and remove the bolts and washers. Then push out the oval knock out panel from the alcove where the switch will be mounted just left of the steering column. The fog light switch is easy to find behind the panel and is larger than the oval knockout opening. Now came the only tricky part of the installation. I couldn’t reach the connector and hold it up against the oval opening in order to push in the fog light switch to connect it. So we strung a wire around the connector and pulled it flush with the back of the oval opening and held it while we pushed the switch in. The round switch button should be positioned on the left.

Next, reassemble the knee bolster and lower trim panel.

Under the hood, remove the cover from the power distribution box and plug in the provided relay in position K47. There should also be a 5 Amp fuse in position 22. If missing, use a spare fuse. Mine was already in place.

Functional check of fog lights is next

Turn ignition to position 2 and switch low beams on. Switch fog light switch on the green fog light indicator on instrument cluster should illuminate when fog lights are on. Then select high beams – fog lights and indicator should go out. There is a screw adjustment on each light assembly to adjust the vertical beam – no adjustment available to side.

Last step is press in the black plastic covers supplied to fill in the opening.

Note: Two things are different from the factory fog lights:

The lens is crystal clear instead of a ribbed surface. Personally I like the appearance better.

The fog lights will only come on with the low beams, period. You can’t turn them on with only the parking lights selected as the factory installation allows. That I don’t like. I suspect the relay is the problem. My service rep promised to get me an answer about this oddity. Maybe the relays are defective or maybe the factory relay can be substituted. I’ll provide an answer as soon as I find out.

In summary

This was an easy installation that any 1999 or 2000 2.3 driver could do in 45-50 minutes. You’ll save $100 over the factory lights and have a unique set of fog lights. Now, go out and shine your light!

One thought on “BMW Fog Light Kit for the 2.3 Z3

  1. John Pavia

    I put in a set of fog lamps and did everything as you said, BUT MY FOG LAMPS KEEP GOING ON WHEN I PUT THE LIGHTS ON, THE DIMMER AND MAIN BEAM, any advice as I think I was given a defective Relay.
    john

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