Aston Martin DB11 Headlights Left Right JY5313W029BB BA

For the Aston Martin DB11 (2016–2023), the part numbers JY53-13W029-BB and JY53-13W030-BA (or BB) identify the high-performance Full LED Headlight Assemblies.

These are incredibly complex units that include the signature “C-shaped” daytime running lights (DRL), low/high beam LEDs, and the cornering light functions.

1. Part Number Breakdown

• JY53-13W029-BB: Right Hand (RH) Side Assembly (Offside).

• JY53-13W030-BA/BB: Left Hand (LH) Side Assembly (Nearside).

• The “BB” Suffix: This typically denotes the Black Bezel (darkened) interior housing. This was standard on the V8 models and the DBS Superleggera, and became a popular option on the V12 to provide a more aggressive look compared to the original silver/chrome “BA” versions.

2. Technical Features

• Integrated Cooling: Because high-output LEDs generate significant heat, these units have internal fans and heatsinks. If a fan fails, the LED will dim or shut down to prevent melting the housing.

• Static Bending Lights: The “cornering” function uses specific LEDs that illuminate the side of the road when the steering wheel is turned at low speeds.

• Auto-Leveling: These units contain internal motors that adjust the beam height based on the car’s pitch (accelerating/braking) to avoid blinding oncoming traffic.

3. Compatibility & Constraints

• LHD vs. RHD: These part numbers are generally for LHD (Left-Hand Drive) markets (USA, Europe, Middle East). RHD units (UK, Australia, Japan) have different internal beam patterns (kick-up to the left) and carry different part numbers to comply with local road laws.

• Interchangeability: You can physically swap a “Black Bezel” (BB) unit onto a car that originally had “Silver” (BA) units, but it is highly recommended to replace them in pairs so the car’s “eyes” match.

4. Common Failure Points

1. Condensation: While all headlights are vented, excessive moisture buildup inside the lens can short out the LED driver module located at the bottom of the unit.

2. DRL Yellowing: Over time, some early units showed a slight yellowing or dimming of the “C” shaped DRL strip. This is an internal failure and usually requires a complete unit replacement as the LEDs are not serviceable separately.

3. Lens Pitting: Because the DB11 sits low and the headlights have a large surface area, they are prone to stone chips. Many owners apply PPF (Paint Protection Film) to these units specifically.