2019 Audi A4 Electrical Bulb & Socket Parts

This table covers the bulbs in the reverse lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

5 Back Up / Reverse Lamp Bulb parts for the 2019 Audi A4 come from HELLA. The "Popular" part is HELLA 921.

In the Extended Life grade, HELLA supplies 2 parts: grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. A representative part number is HELLA 921LL.

In the Standard Replacement grade, HELLA supplies 3 parts: built to original-equipment specification. A representative part number is HELLA 921.

Part numbers include HELLA 921, HELLA 921LL and HELLA DE3175LL, among others listed above.

This table covers the bulbs in the stop lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

3 Brake Light Bulb parts for the 2019 Audi A4 come from 2 brands — HELLA and PHILIPS.

Extended Life: 1 part, from HELLA. A representative part number is HELLA 7506LL.

The LED (instant-on, long life, energy-saving) section lists 1 option from PHILIPS — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. PHILIPS 1156RLED is listed in this group.

Standard Replacement: 1 part, from HELLA. A representative part number is HELLA 7506.

Listed part numbers: HELLA 7506LL, PHILIPS 1156RLED and HELLA 7506.

This table covers the replacement bulbs for the Cornering Lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

5 Cornering Lamp Bulb parts for the 2019 Audi A4 come from 3 brands — SYLVANIA, PHILIPS and HELLA. The "Popular" part is PHILIPS H8.

Listed part numbers: PHILIPS H8, plus the other parts above.

This table covers the bulbs in the fog and driving lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

2 Fog / Driving Lamp Bulb parts are listed for the 2019 Audi A4, from HELLA and PHILIPS.

Part numbers include HELLA H21W, among others listed above.

This table covers the bulbs in the glove-box lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

4 Glove Box Light Bulb parts are listed for the 2019 Audi A4, from SYLVANIA, HELLA and PHILIPS.

The Extended Life section: 1 option from SYLVANIA. SYLVANIA 2821LL is listed in this group.

The Standard Replacement section: 3 options from HELLA, PHILIPS and SYLVANIA. HELLA 2821 is listed in this group.

Listed part numbers: SYLVANIA 2821LL, HELLA 2821 and PHILIPS 12256, plus the other parts above.

This table covers the bulbs that light the headlamps. Typical signs include a dark lamp, a flicker over bumps, or a bulb that keeps failing on one side. Avoid touching a halogen capsule. Repeated failure in one socket is usually the socket or ground, not the bulb. Read more

6 Headlamp Bulb parts are listed for the 2019 Audi A4, from SKP, SYLVANIA, ÜRO PARTS and 3 other brands. HELLA H8 carries the "Popular" badge.

The HID (intense white light) section lists 4 options from SKP, SYLVANIA, ÜRO PARTS and 1 other brand — grouped under the catalog's "HID (intense white light)" designation — the notes column spells out what sets them apart. SKP SKD3S is listed in this group.

The Standard Replacement section: 2 options from HELLA and PHILIPS. HELLA H8 is listed in this group.

Part numbers include HELLA H8, SKP SKD3S and SYLVANIA D5S, among others listed above.

This table covers the sockets that hold a headlamp bulb in the housing. Typical signs include a flicker over bumps, melted plastic, or a bulb that will not stay seated. Dielectric grease on the contacts slows corrosion. Do not force a bulb into a heat-damaged socket. Read more

3 Headlamp Socket parts are listed for the 2019 Audi A4, from STANDARD MOTOR PRODUCTS and ACDELCO.

Part numbers include ACDELCO PT2298, STANDARD MOTOR PRODUCTS HP3835 and STANDARD MOTOR PRODUCTS S553.

This table covers the bulbs in the tail lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

5 Tail Lamp Bulb parts are listed for the 2019 Audi A4, from HELLA and PHILIPS. HELLA 921 carries the "Popular" badge.

The Extended Life section: 2 options from HELLA. HELLA 921LL is listed in this group.

LED (instant-on, long life, energy-saving): 1 part, from PHILIPS. A representative part number is PHILIPS 1156RLED.

The Standard Replacement section: 2 options from HELLA. HELLA 921 is listed in this group.

This group includes HELLA 921, HELLA 921LL and HELLA 7506LL and the remaining parts above.

This table covers the bulbs in the turn-signal lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

6 Turn Signal Lamp Bulb parts for the 2019 Audi A4 come from 3 brands — SYLVANIA, PHILIPS and HELLA. The "Popular" part is PHILIPS PY21WLL.

Extended Life: 2 parts, from PHILIPS and SYLVANIA. A representative part number is PHILIPS PY21WLL.

Standard Replacement: 3 parts, from HELLA, PHILIPS and SYLVANIA. A representative part number is HELLA 7507.

1 further part sits outside the graded sections, with the same engine-level match.

Part numbers include PHILIPS PY21WLL, SYLVANIA 7507LL and HELLA 7507, among others listed above.