BayOptiks E92 Black Line tail lights: fitting and fixes
Fitting tips for BayOptiks E92 Black Line sequential LCI-style tail lights, and fixes for the three most common faults.
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Most fitting problems with BayOptiks E92 Black Line tail lights are avoided with four checks before you fit them. The three faults we're asked about most each have a quick fix: two red wires set solid or sequential indicators, coding fixes a flicker, and straightening a bent pin seats the connector.
What these tail lights are
The BayOptiks E92 Black Line sequential LCI-style tail lights are aftermarket tail lights for the BMW E92, styled on the later LCI design, with sequential indicators.
Fitting tips
- Check the tail lights work before you fit them to the car.
- Peel the protective wrapper off the edges of the tail lights before fitting, so it doesn't get trapped between the tail light and the body or boot lid.
- Remove all spacers and stand-offs from the old tail lights and the car's body. If you leave them on, the tail lights won't sit flush with the rear quarter panel.
- On the inner tail lights, peel the cover off the foam gasket and stick it to the tail light. It seals the inside of the boot from the outside of the car. Without it, water can get in and the inner boot lights can fail early, which isn't covered by the warranty.
One tail light flashes solid and the other sequentially
On the back of the tail light are 2 red wires with a male and a female connector. Disconnect or reconnect them to switch between solid and sequential modes.
Indicators flicker and don't make a full sequential sweep
The rear indicators aren't running at full brightness. Code the rear indicator PWM to 100% in the FRM to fix it. We can do this in person or remotely.
The connectors won't seat fully in the tail lights
Look inside the connector on the affected tail light and check all the pins are straight and none are bent. Straighten any that are, and the connector will slide in.
Common questions
Why does one tail light flash solid and the other sequentially?
The two red wires on the back of each tail light set the mode. Connect or disconnect them so both tail lights match.
Why do my BayOptiks indicators flicker?
The rear indicators aren't running at full brightness. Coding the rear indicator PWM to 100% in the FRM fixes it, and gives a full sequential sweep.
Do BayOptiks E92 tail lights need coding?
On UK and EU cars they generally go straight in, and coding is needed only in a few cases, such as the indicator flicker above.
Why won't the connector push into the tail light?
Check for a bent pin inside the connector. Straighten any that are bent, and the connector will slide in.
Why won't the tail lights sit flush?
The old spacers or stand-offs are still on the car's body or the old tail lights. Remove them all before fitting.
Is water in the boot lights covered by the warranty?
Not if the foam gasket on the inner tail lights wasn't fitted. Peel its cover off and stick it to the tail light before fitting.
Still stuck?
WhatsApp us on 0121 295 1900 with a photo of the problem, or book remote coding.
