Original Left Inner Tail Light (in the Boot Lid / Lightbar) LED – Seat / Cupra Leon IV – 5FE945307L

Original factory tail light mounted directly in the left / driver's side boot lid in LED technology, forming an integral part of the central lightbar (left tail light in the boot lid / inner combined rear light – Heckleuchte Heckklappe Links LED / Rear Inner Tail Light Lightbar), designed for Seat Leon IV and Cupra Leon (KL1 generation – Hatchback / 5-door) models produced from 2020 to 2026, including versions with petrol TSI engines (1.5 TSI, 2.0 TSI), eTSI mild hybrid technology (mHEV), high-torque TDI variants, and e-HYBRID plug-in hybrids (1.4 e-HYBRID / 1.5 e-HYBRID, including VZ 245/300 hp versions), based on the modular MQBevo platform.

Original VAG group OE exterior lighting component. Made of high-impact PMMA/ABS technical plastic with the highest resistance to UV radiation, microcracks, sun-induced discoloration, and the aggressive chemicals of touchless car washes. It features a precisely routed LED light guide with a distinctive, dynamic geometry, creating a continuous light line across the entire width of the boot lid at dusk, characteristic of the Seat and Cupra brands (so-called coast-to-coast lightbar). The housing is equipped with a complete, sealed micro-rubber perimeter seal, which effectively protects the interior of the lid and the electrical installation from water ingress. The light has full European road approval ECE (E-Mark / E9) allowing it to be used in right-hand traffic.

Technical specifications:

• Catalog part number (OE): 5FE945307L / 5FE 945 307 L (and related revisions from the 5FE945307, 5FE945307A, 5FE945307J; the right passenger side in the lid is available under the even number 5FE945308L / 5FE945308)

• System / Category: Vehicle exterior lighting / Inner tail lights in the boot lid, LED lightbars (Inner Tail Light LED / Heckleuchte Heckklappe Links)

• Mounting side: Rear – boot lid, left side (driver)

• Technology: Full LED (3D LED position light guide, reversing light and fog light section depending on the configuration)

• Market version: European (ECE)

• Component contents:

  • Light with factory-integrated LED modules

  • Factory foam seal/micro-rubber fitting against the lid edge

  • Original plug socket with undamaged pins

• Approval: European E (E9) stamped on the lens housing

• Mounting location: Boot lid – left side (section of the lid extending to the central logo)

• Dedicated model: Seat Leon IV / Cupra Leon Hatchback (type KL1)

• Production years: from 2020 to 2026 (models with factory coast-to-coast lightbar)

• Steering side: Left (LHD) and Right (RHD) – universal component for the European version

• Condition: Original part, used (100% functional – in very good condition, clear lens without cracks, without deep scratches and without clouding, threaded studs and mounting clips fully intact, LED diodes and light guide illuminate evenly at full brightness)

• Manufacturer: Seat S.A. / Cupra / VAG (OEM Original)

Main application:

• Seat / Cupra:

  • Leon IV Hatchback (type KL1) – model years from 2020 to 2026 (versions equipped with a factory full coast-to-coast lightbar: FR, Xcellence)

  • Cupra Leon Hatchback (type KL1) – model years from 2020 to 2026 (all engine versions: 1.5 eTSI, 2.0 TSI, VZ, e-HYBRID)

(Note: Segment mounted directly in the boot lid of the KL1 Hatchback body. It does not replace the exterior corner light in the fender panel 5FA945207. Due to the different lid line and lightbar length, it does not fit the Sportstourer estate body KL8).

Fitment guarantee and VIN verification

Before shipping, each light undergoes a detailed LED module continuity test, light guide color uniformity verification, and inspection of the mounting points to the lid panel.

Fitment / installation tip: The initial designation 5FE (lighting group 945 / 307) with the L index defines the left boot lid light for the 5-door hatchback body with a full LED lighting package. Replacing the lid light is straightforward: after removing or tilting back the inner boot lid trim, unscrew the mounting nuts on the threaded studs, unplug the factory wiring harness connector, and carefully slide the light outwards. Using an original OEM part eliminates the risk of leaks and condensation, ensures a perfect flush fit with the left fender gap, and guarantees a seamless light line with the right part of the lightbar without BCM control unit errors. Before purchasing, we recommend comparing the OE number on the housing sticker or verifying it using the vehicle's VIN.