CSL White/Yellow Switchable DRL Modules — BMW G20/G21 3 Series (Adaptive LED)
Switchable White/Yellow DRL — Pre-Installed Heatsinks — Plug-and-Play — Pre-LCI Adaptive LED (Option 552) — 2019–2022
G20 Sedan • G21 Touring • 320i • 330i • M340i • Adaptive LED (552) • Pre-LCI • 2019–2022
The G20's Adaptive LED headlight has one of BMW's sharpest DRL shapes — the angular etched ring that made the pre-LCI 3 Series instantly recognizable. These modules let you switch it to CSL yellow from the high-beam stalk in under two seconds, plus strobe, breathing, and an automatic mode tied to your low beams. White is calibrated to match your factory DRL color temperature; the car looks stock at a glance.
Fits Adaptive LED headlights (option 552) on pre-LCI 2019–2022 G20/G21. Does not fit Standard LED (5A2), Laserlight (5AZ), or LCI (2023+). Available in separate EU-market and US-market versions — see below.
Step 1 — Is This Your Headlight?
These modules fit the pre-LCI Adaptive LED headlight — BMW option 552 — on 2019–2022 G20/G21. The giveaway: the angular etched DRL ring with beams that swivel when you turn the steering wheel at night. No blue accents inside (that's Laserlight), no static beams (that's Standard LED). If your car is a 2023+ LCI, these are not compatible.
Adaptive LED (Option 552)
Angular etched DRL ring — beams swivel with steering.
Step 2 — EU or US Market?
BMW uses different DRL electronics for EU-market and US-market Adaptive LED headlights, so we ship two dedicated versions. Pick the one that matches the headlight in your car, not the country you're driving in.
How to know which you have
If your car was originally sold new in the EU, UK, or any right-hand-drive market, choose EU. If it was originally a US-market car — even if it's since been imported to Europe — choose US. The original-sale market sets the headlight electronics for the life of the car. Grey-import cars retain their original headlight hardware.
Not sure? The sticker on the headlight lens carries BMW's part number. Matching it to the list below confirms your version. You can also send us your VIN and we'll look it up in under an hour.
Not sure if your car has Adaptive LED — or which market version?
Send us your VIN and we'll confirm both in under an hour. Contact us here →
Complete modules, not bare boards.
Each Eleron module arrives as a finished assembly — LED board bonded to its own aluminum heatsink with thermal interface pre-applied. The install is clean mechanical work: unbolt, unplug, swap, bolt. Your factory modules come out untouched and stay factory-correct in a drawer, so the upgrade is fully reversible whenever you want. No separating boards from heatsinks, no thermal paste, no board-level work.
Five modes · One stalk · No app
DRL Control
Every mode switches from your factory high-beam stalk with low beams off. Your selection persists through ignition cycles.
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3×Manual Toggle
Switches between solid White and solid Yellow DRL. Your choice stays set until you change it.
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5×Auto Mode Eleron Exclusive
Set it and forget the toggle. The DRL follows your low beams automatically: Yellow when low beams are off, White when they come on. Most competitor modules only offer manual toggling.
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7×Strobe
A left-right progressive strobe in your current DRL color. Flash 7× again to switch the strobe to the other color. A show mode, not for road use.
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11×Ambient Breathing
A slow, subtle pulse where the DRL dims in and out. Best used while parked or at idle — not intended for driving.
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9×Reset
Returns the module to factory White DRL and clears all mode settings.
Built for Adaptive LED
Plug-and-Play — Zero Coding
Built specifically for the G20 Adaptive LED DRL circuit. Connects to your factory controller and wiring — no coding, no CAN adapters, no error codes. AFS beam swiveling, welcome light, and turn signal integration all stay exactly as BMW engineered them.
Matched Pairs — Binned Together
Left and right modules are color-matched at QC before they ship, so your DRLs read identical side-to-side. Cheap imports often mix LED bins — one headlight slightly warmer than the other — and once you've noticed the difference, you can't un-notice it.
Fully Reversible
Factory modules come out intact and go in a drawer — bolt them back in for a lease return, sale, or dealer visit. Same process, same screws, no residue.
2-Year Warranty
Two years of coverage from delivery date on every set.
Installation
Honest version: the G-chassis headlight design means the DRL modules aren't top-accessible from the engine bay. You have two paths to reach them. The cleaner method is to remove the front wheels and fender liners — this gives enough room to release the headlight mounting bolts and pull each unit forward a few centimeters to work on the back. The alternative is a full front bumper removal, which is more involved but gives you full working access.
Once you have access: disconnect the factory DRL connector from the rear of the headlight, unbolt the OEM module, plug the Eleron module into the same connector, secure with the original screws. Test both White and Yellow DRL before closing everything up. Plan for a half-day if you're comfortable with interior trim work, or book a local shop if you'd rather not touch the bumper or fender liners yourself.
Tools: T20 and T25 Torx bits, 8mm and 10mm sockets, trim removal tool, jack and stands if you're going the wheel/liner route.
Frequently Asked Questions
Adaptive LED (option 552): angular etched DRL ring, beams that actively swivel with your steering input at night, no blue accents inside the housing. Standard LED (option 5A2): same DRL shape but static beams that don't swivel. Laserlight (option 5AZ): blue "L" inlays inside the housing and a thick horizontal DRL bar. Each uses a different DRL connector — you need to match the product to your headlight type.
No. Standard LED uses a different DRL connector from the Adaptive LED. We make a separate product for Standard LED — message us and we'll point you to it.
No. Laserlight has its own DRL circuit and connector. We sell a dedicated Laserlight DRL module — check our G20 Laserlight product page.
Yes. The DRL module is a completely separate circuit from the AFS beam-steering system. Cornering logic, selective beam, welcome light, turn signal integration — all preserved.
Yes. The G20 Sedan and G21 Touring share identical headlight housings and DRL modules when equipped with the same headlight option.
No. The LCI uses a redesigned headlight with a different DRL architecture. These modules are for the pre-LCI (2019–2022) only.
Pick the market the car was originally sold in. If it was a US-market car that's now in Europe, order the US version — the headlight electronics don't change when the car is re-registered. The sticker on your headlight lens carries BMW's part number and confirms the market. If you're unsure, send us your VIN and we'll check it against the factory build sheet.
Yes. The DRL modules on the G20 sit behind the headlight housing, not on top of it. There's no engine-bay shortcut. The wheel-and-fender-liner route is cleanest; full bumper removal gives more working room. A shop will quote 1–2 hours of labor.
No. The modules draw the same current as the factory DRL and speak the same CAN signals to your headlight controller. No coding needed, no codes thrown.
White matches the factory Adaptive LED DRL color temperature, so the car looks stock at a glance — the right pick when you want the OEM aesthetic. Yellow is the CSL-style signature, the detail that sets M4 CSL and CS models apart at shows and meets. Switching takes under two seconds from the driver's seat, so your configuration isn't locked in.
Technical Specifications
| Product Type | DRL LED Module (complete unit with heatsink) |
|---|---|
| DRL Colors | White (~6,000K) / Yellow (~3,000K) — switchable |
| Modes | Static White · Static Yellow · Auto · Strobe · Ambient Breathing · Reset |
| Switching | High-beam lever (low beams off) — no app, no remote, no external controller |
| Heatsink | Aluminum — pre-installed (complete module swap, no board-level work) |
| Mounting | Torx screws — direct replacement of factory DRL module |
| Operating Voltage | 12V DC |
| Coding Required | No |
| Dashboard Warnings | None |
| Welcome Light | Preserved |
| AFS / Adaptive Steering | Unaffected |
| Compatibility | G20 Sedan · G21 Touring · Adaptive LED (Option 552) · Pre-LCI · 2019–2022 |
| Not Compatible | Standard LED (5A2) · Laserlight (5AZ) · LCI (2023+) |
| Market Versions | Separate EU-market and US-market SKUs — choose based on original-sale country |
| Sold As | Set (Left + Right modules) |
| Warranty | 2 Years |
OEM Cross-Reference Numbers
| Shared G20/G21 Adaptive LED · 2019–2022 |
63 11 8 496 133 |
|---|---|
| EU Market — Adaptive LED (552) G20/G21 · 2019–2022 |
Left: 63 11 8 496 135 Right: 63 11 8 496 136 |
| US Market — Adaptive LED (552) G20/G21 · 2019–2022 |
Left: 63 11 8 496 137 Right: 63 11 8 496 138 |
Your headlight lens sticker will show one of these numbers. If your part number doesn't match, or you're not sure which version you have, send us your VIN and we'll confirm the correct one.