The Audi A4 light up emblem replaces your factory front grille badge with a dynamic 5D LED-illuminated version that glows when your headlights or daytime running lights are active.
The animated effect activates on lock and unlock — the four rings build and illuminate as you approach the car — then remain on continuously while driving.
This product covers both the standard A4 and the performance S4 across the B7, B8, and B9 platforms — all share the same front grille badge size and mounting system.
Audi A4 Light Up Emblem Key Features
- 5D Dynamic LED effect — animated illumination sequence on lock/unlock, continuous glow while driving. No app required.
- Fits A4 and S4 — B7, B8, and B9 platforms across all body styles and engine variants.
- Chrome OEM-matched finish — chrome-plated surface manufactured to match the factory A4/S4 badge exactly. No visible white border or protruding edge when unlit.
- Pure white LED output — clean white illumination matching factory LED headlight colour temperature. No yellow tint.
- Two size options — 273mm for B7/B8 models, 252mm for B9 facelift models. See the size guide below before ordering.
- Waterproof 2nd-gen housing — fully dustproof and waterproof, rated for 10,000+ hours working life.
- No coding required — two-wire 12V connection to headlight or DRL circuit. No VCDS, no OBD adapter, no dealer visit.
- 1-year full warranty — covers LED failure, housing seal failure, and connector faults.
Compatibility — Audi A4 Light Up Emblem Size Guide
Size 273mm — Select “273mm” from the size selector:
Audi A4 B7 (2005, 2006, 2007, 2008)
Audi S4 B7 (2005, 2006, 2007, 2008)
Audi A4 B8 Pre-facelift (2008, 2009, 2010, 2011)
Audi S4 B8 Pre-facelift (2009, 2010, 2011)
Audi A4 B8 Facelift (2012, 2013, 2014, 2015)
Audi S4 B8 Facelift (2012, 2013, 2014, 2015)
Audi A4 B9 Pre-facelift (2016, 2017, 2018, 2019)
Audi S4 B9 Pre-facelift (2017, 2018, 2019)
Size 252mm — Select “252mm” from the size selector:
Audi A4 B9 Facelift (2020, 2021, 2022)
Audi S4 B9 Facelift (2020, 2021, 2022)
To confirm fitment, measure your current factory grille badge across its widest point.
If it measures approximately 273mm, select the 273mm option.
If it measures approximately 252mm, select the 252mm option.
If you are unsure, contact our team with your exact model, variant, and year, and we will confirm the correct size before you order.
Technical Specifications
- Size options: 273mm / 252mm
- LED colour: Pure white
- Colour options: Crystal (standard chrome) / Black (gloss black chrome)
- Power supply: DC 12V (±10%)
- Power consumption: 2W
- Operating voltage: 13V maximum — do not exceed
- Current draw: 0.1A
- Wire length: 0.6m
- Package contents: 1x Audi A4 light up emblem, wiring harness, 3M adhesive tape
Wiring Guide
Red wire (positive): Connect to the DRL circuit, headlight circuit, or taillight circuit.
Do not connect to the brake light circuit — brake light voltage spikes will damage the emblem.
Black wire (negative/earth): Connect to any body earth point in the engine bay.
Night-only mode: Wire red to the headlight positive → emblem activates with headlights only.
Always-on mode: Wire red to the DRL or taillight positive → emblem activates whenever the ignition is on.
Frequently Asked Questions — Audi A4 Light Up Emblem
Does this fit the Audi S4? +
Yes.
The S4 B7 (2005–2008), S4 B8 (2009–2015), and S4 B9 (2017–2022) all use the same front grille badge as the standard A4 across each platform generation.
Select the 273mm for S4 B7, B8, and B9 Pre-facelift (2005–2019).
Select the 252mm for S4 B9 Facelift (2020–2022).
Which size do I need for my Audi A4 or S4? +
Select 273mm for A4/S4 B7 (2005–2008), B8 Pre-facelift (2008–2011), B8 Facelift (2012–2015), and B9 Pre-facelift (2016–2019).
Select 252mm for A4/S4 B9 Facelift (2020–2022).
If unsure, measure your factory badge across its widest point before ordering.
Does the A4/S4 light-up emblem work with adaptive cruise control? +
Check whether your A4 or S4 has an ACC radar sensor positioned directly behind the front grille badge before ordering.
This is most common on B9 A4 and S4 models (2016–2022) fitted with the Adaptive Cruise Assist package.
If your A4 or S4 has a front radar sensor behind the emblem, contact our team before ordering and we will confirm compatibility for your specific build.
Crystal or Black — which colour should I choose? +
Crystal chrome matches the factory A4/S4 badge finish exactly and looks completely OEM when unlit.
Gloss black is the more popular choice for S4 owners and A4 owners with a black styling package, S-line Black Edition, or Carbon Edition specification.
Both produce identical pure white illumination when active.
How does the emblem connect to the car? +
The emblem includes a two-wire harness — one positive and one negative.
Route the wires through the front bumper trim into the engine bay and connect to any switched 12V circuit.
For night-only illumination wire to the headlight circuit.
For illumination during daylight driving wire to the DRL circuit.
No coding, no VCDS, no dealer visit required.
Is the emblem waterproof? +
Yes.
The sealed housing is fully dustproof and waterproof, rated safe for rain, road spray, and standard car washing including automatic and hand washing at normal pressure distances.
Rated for 10,000+ hours of working life.
Will fitting this emblem void my Audi warranty? +
In most cases no.
The installation leaves all factory wiring completely intact, requires no ECU or module changes, and is fully reversible — the factory badge can be refitted at any time.
Retain your original badge and proof of purchase for complete peace of mind.
Still have a question? Contact our support team — we reply within 24 hours.
linda lewis –
Installation was easy and the product came in a nice box so no damage was created during shipment. I do recommend watching a video before installing it yourselves!!