Audi A3 8V bulb types

Dipped: H7 · Main: H7 · Indicators: PWY24W · Brake/tail: W21W

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.

Audi A3 8V

2012–2020 · bulbsAll 10 verified

Base halogen spec; many have xenon/LED

Dip beam (low)H7VerifiedStandard halogen dip beam across UK-spec A3 8V halogen headlamp variant.
Main beam (high)H7VerifiedSame H7 bulb doubles as main beam on the halogen reflector unit.
Front fogH8VerifiedH8 on birnen-typ and mk-led.hr A3 8V page; audi-sport 8V owner also cites H8. boslla's H11 claim likely US-spec (US A3 uses H11) or LED kits fitting both bases. Facelift 8V (2016+) S-line/LED cars have LED fogs, non-replaceable.
Sidelight / DRLW5WVerifiedHalogen headlamp sidelight W5W (501). DRL in halogen lamp is H15 (shared with main beam); xenon/LED headlamps have non-replaceable LED DRL.
Front indicatorPWY24WVerifiedOften listed as PY21W. 8V uses PWY24W amber wedge in all headlamp types (halogen, xenon, LED). elsewhere; that is wrong for this car.
Rear indicatorPY21WVerifiedPY21W (581) in outer cluster on halogen rear lamps. birnen-typ also lists RY10W for a variant. LED rear clusters (S-line/later facelift) non-replaceable.
Brake / tailW21WVerifiedOften listed as P21/5W. Brake is single elsewhere — filament W21W (582) in outer cluster; tail is separate W16W in inner (tailgate) unit per Hella 2TZ 012 834 spec. Not a P21/5W twin-filament.
ReverseH6WVerifiedOften listed as P21W. Reverse is H6W (BAX9s) in inner tailgate unit: birnen elsewhere — typ + Hella 2TZ 012 834 / MM 714081090 specs. ledperf (P21W) and ultimatestyling (W21W) are generic/wrong.
Rear fogW21WVerifiedOften listed as P21W. W21W (582) in inner tailgate unit (Hella 2TZ 012 834 lists W16W/W21W/H6W = tail/fog/reverse). birnen elsewhere — typ notes an H21W variant on some units.
Number plateLED (non-replaceable)VerifiedOften listed as W5W. 8V number plate lamps are sealed LED units as standard (birnen elsewhere — typ: LED; ledperf sells replacement LED modules by year, not bulbs).

Sources · last checked 5 Sept 2026

Two independent sources agree: boslla.com Audi A3/A4/A6 bulb guide; audi-sport.net 8P bulb fitment thread (context) (Dip beam (low), Main beam (high))
Two independent sources agree: mk-led.hr Audi A3 8V conversions page; birnen-typ.de A3 8V list (prior pass); audi-sport.net 8V fog bulb thread 357049 (Front fog)
Two independent sources agree: birnen-typ.de Audi A3 8V bulb list; ledperf.co.uk A3 8V LED page; boslla A3 bulb list (Sidelight / DRL)
Two independent sources agree: birnen-typ.de Audi A3 8V bulb list; ledperf.co.uk A3 8V LED page (Front indicator, Number plate)
Two independent sources agree: birnen-typ.de Audi A3 8V bulb list; ultimatestyling.co.uk 8V rear lamp listing (Rear indicator)
Two independent sources agree: birnen-typ.de Audi A3 8V bulb list; onlinecarparts.co.uk A3 8V1 rear lamp units (Hella/MM) (Brake / tail, Reverse, Rear fog)

Checked by FitsMyCar against the sources above · how we check

Audi's handbooks (VIN required) ↗

Can you fit LED bulbs to the A3 8V?

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.

Source: MOT inspection manual, section 4 — lamps ↗. Headlamp technology recorded as halogen on most trims, xenon or LED on some — how we check.

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