E39 540i — Lighting Mod

Celis Rear
Brake
Lights

Started with the M5 pre-01 clears to get rid of the amber signals. Then went full Celis. They make the car look updated and they're really bright at night. Here's the full install.

Celis
LED rear lights — Hella kit
AlexPS
Photos and duct tape tip — thanks
AutoZone
Trim removal tool — essential
Before

Stock Rear Lights

The car as it was before the Celis lights. I had already installed the rear clears from the pre-01 M5 to get rid of the amber signals. I do like amber signals on some cars, especially green ones where they provide great contrast. My preference for Titanium Silver is clear.

Stock lights
Stock lights — before the Celis install
Step 01

Old vs New Lens Comparison

A comparison of the two lenses side by side before installation. The difference in the LED arrangement is immediately obvious — the Celis units are far brighter and give the rear a much more modern look.

Old vs new lens
Old vs new lens — the difference is obvious
Step 02

Hella Instructions — 4 Pages

These are the instructions provided within the Hella kit. Four pages. Read them. Seriously.

Get a trim removal tool from AutoZone. This thing is the best if you've ever tried removing tabs with a screwdriver.
Instructions 1
Instructions 2
Instructions 3
Instructions 4
All 4 pages — click each for larger view
Step 03

Remove the Lens — 4 Bolts

There are four bolts you need to remove to gain access behind the lens. Once the lens is out, you'll see the section where you need to drill.

Put a bag over the back of the area where you'll cut and drill. It helps keep metal shavings away from the Nav system — and those little shards could cause rust eventually. It just feels better with the bag.
Trim tool
4 bolts
Catch bag
Trim tool / four bolts / bag for shavings
Step 04

Drill & Prep

Removing the lens exposes the section where you'll drill. Images for this step were taken and edited by AlexPS. The finished product shows where the new holes are drilled — these are the mounting points for the LED lenses.

Prep
Drilled
Prep and drill — AlexPS photos
Step 05

Ballasts & Both Sides Ready

Both sides done and ready for installation. The ballasts included with the kit take up some storage in the wheel well. Some don't like that — you could fabricate custom brackets and mount them wherever you wish. The duct tape was an idea from AlexPS; I followed his lead there.

Ready
Ballasts
Both sides ready / ballasts with duct tape
Complete

The Moment of Truth

The lights work! They are much brighter — even the turn signals are pretty bright compared to the older style. Mostly, I like the updated look. Back home and all buttoned up.

"Really bright at night. I like the updated look."
Lights on
Buttoned up
Moment of truth / all done
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