2012–2020. UK specification. Halogen base spec unless a row says otherwise — cars with factory xenon or LED headlamps use sealed units for those positions.
SEAT Leon 5F
2012–2020 · bulbsAll 10 verified
Halogen base; LED on FR+
Dip beam (low)H7VerifiedHalogen S/SE. FR and above (all 2017+ facelift FR/Xcellence/Cupra) full LED non-replaceable. No xenon option on 5F.
Main beam (high)H7VerifiedSeparate H7 main - NOT H15 like Golf Mk7. birnen-typ says H7; seatcupra thread treats dip and main as both H7 uncorrected. LED on FR+.
Front fogH8Verifiedbirnen-typ and agmvision both H8 (halogen fog, non-LED). Not fitted to base S trim; facelift FR/Cupra have LED fogs.
Sidelight / DRLP21WVerifiedP21W (UK 382) DRL/sidelight in halogen headlamp per birnen-typ and agmvision. LED headlamp cars (FR+, all facelift FR/Xcellence/Cupra) non-replaceable.
Front indicatorPY21WVerifiedPY21W (UK 581) in halogen headlamp per birnen-typ and agmvision.
Brake / tailP21WVerifiedBrake P21W, tail W5W (separate bulbs, not P21/5W) per birnen-typ and agmvision. LED tail lamps on higher trims non-replaceable.
ReverseH21WVerifiedH21W pre-facelift 2012-2016 (birnen-typ, agmvision 'until 2016 variant'). 2017+ facelift reverse is W16W per seatcupra.
Rear fogH21WVerifiedH21W per birnen-typ and agmvision (agmvision notes two versions by year; facelift 2017+ may use W16W like reverse - unconfirmed).
Number plateW5WVerifiedW5W (UK 501) per birnen-typ and agmvision. Many cars, esp. facelift, have factory LED plate lamps (non-replaceable).
Sources · last checked 4 Sept 2026
Two independent sources agree: birnen-typ.de Leon 5F list; seatcupra.net Leon 3.5 halogen bulb upgrade thread (Dip beam (low), Main beam (high))
Two independent sources agree: birnen-typ.de Leon 5F list; agmvision.com Leon 5F1 LED bulb list (Front fog, Sidelight / DRL, Front indicator, Brake / tail, Rear fog, Number plate)
Two independent sources agree: birnen-typ.de Leon 5F list; agmvision.com Leon 5F1 and 5F8 bulb lists (Rear indicator)
Two independent sources agree: birnen-typ.de Leon 5F list; agmvision.com Leon 5F1 LED bulb list; seatcupra.net facelift reverse thread (Reverse)
Checked by FitsMyCar against the sources above · how we check
Can you fit LED bulbs to the Leon 5F?
Most trims of this car have halogen headlamps. In the UK, a halogen headlamp unit on a car first used on or after 1 April 1986 must not be converted to LED or HID bulbs: the MOT inspection manual (§4.1.4) treats a converted unit as a fail, however bright or well aimed it is. “Retrofit LED H7” bulbs sold for these cars are for off-road use. Halogen upgrade bulbs (+150% and similar) are legal because the unit is unchanged. Sidelights, indicators and number-plate LEDs are a separate question — E-marked LED versions of those are road legal.
H7. Halogen S/SE. FR and above (all 2017+ facelift FR/Xcellence/Cupra) full LED non-replaceable. No xenon option on 5F.. Verified — the source is shown on the card above.
Is the main beam the same bulb as the dipped beam?
Yes — one H7 does both on this car. Separate H7 main - NOT H15 like Golf Mk7. birnen-typ says H7; seatcupra thread treats dip and main as both H7 uncorrected. LED on FR+..
Did the Leon 5F change bulbs at the facelift?
Dip beam (low): H7. Halogen S/SE. FR and above (all 2017+ facelift FR/Xcellence/Cupra) full LED non-replaceable. No xenon option on 5F.
What if my Leon has xenon headlamps?
Cars with factory xenon use a sealed D-series capsule for dipped beam, not the halogen fitting above. Check the printing on the back of the headlamp unit or the handbook page for “D1S/D2S/D3S”.
Can I put LED bulbs in the Leon's headlamps?
Not legally in a halogen unit — the MOT inspection manual treats a converted headlamp as a fail. Halogen upgrade bulbs are fine. Details in the legality section above.
What brake and tail light bulb does the SEAT Leon 5F use?
P21W. Brake P21W, tail W5W (separate bulbs, not P21/5W) per birnen-typ and agmvision. LED tail lamps on higher trims non-replaceable.. Separate bulbs on this car.
Other cars that use H7 dipped beam
27 other cars on this site share this fitting — the rest of the cluster usually differs, so check each car's own page.