Alfa Romeo 166 – bulb specifications
Type of bulbs

A – All-glass bulbs Are pressure-fixed. Pull to remove
B – Bayonet bulbs Push in the bulb and turn counterclockwise to remove this type of bulb from the fixture.
C – Tubular bulbs Release them from the contacts to remove them
D – Halogen bulbs To remove, remove them from the clip in the socket
Bulbs | Post | Type | Power |
LOW BEAM / HIGH BEAM (HEADLIGHTS ON GAS OUTLET) | re | D1 | 35W |
HIGH BEAM BEACON (GAS OUTLET HEADLIGHTS) | re | H1 | 55W |
LOW BEAM (HALOGEN HEADLIGHTS) | re | H7 | 55W |
DRIVING LIGHTS (HALOGEN HEADLIGHTS) | re | H7 | 55W |
FRONT SIDE LIGHT | b | H6W | 6W |
FOG LIGHTS | re | H3 | 55W |
FRONT DIRECTION INDICATORS (COLORED BULB) | b | PY21W | 21W |
SIDE DIRECTION INDICATORS | FOR | Amber 5W | 5W |
REAR DIRECTION INDICATOR | – | Lead | – |
STOP / SIDE LIGHT | b | 21 / 5W | 21W / 5W. |
REVERSING LIGHT | b | P21W | 21W |
REAR FOG GUARD | b | P21W | 21W |
ADDITIONAL STOP LIGHT (3RD STOP) | FOR | W2.3W | 2,3W |
REAR SIDE LAMPS (ON THE TRUNK LID) | b | R5W | 5W |
FRONT ROOF LIGHTS | b | 10 W halogen bulb. | 10W |
TRUNK LIGHT | to | 10W | 10W |
GLOVE BOX AND DOOR LIGHTS | FOR | W5W | 5W |
SUN LAMP | to | C5W | 5 |
LICENSE PLATE LIGHT | FOR | W5W | 5 |
REAR ROOF LAMPS | b | Halogen HT5W | 5W |