2016 Audi A4 Electrical Switch & Relay Parts

This table covers the relays that control the A/C Condenser Fan Motor circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

One part is listed for the 2016 Audi A4 — HELLA 933332451.

This table covers the pressure switches on the A/C circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

4 A/C Refrigerant Pressure Switch parts are listed for the 2016 Audi A4, from FOUR SEASONS, JAPANESE OE, UAC and 1 other brand.

Part numbers include FOUR SEASONS 37427, JAPANESE OE 3ACP0018 and UAC SW11224C, among others listed above.

This table covers the relays that control the ABS circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

2 ABS Relay parts are listed for the 2016 Audi A4, from STANDARD MOTOR PRODUCTS and WELLS.

Part numbers include STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.

This table covers the relays that control the Accessory Power circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

3 Accessory Power Relay parts for the 2016 Audi A4 come from 3 brands — HELLA, STANDARD MOTOR PRODUCTS and WELLS.

Listed part numbers: HELLA 933332451, STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.

This table covers the pedal-mounted switch that turns on the brake lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

4 Brake Light Switch parts are listed for the 2016 Audi A4, from DORMAN, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand.

In the Economy grade, DORMAN supplies 1 part: the catalog's value-priced group. A representative part number is DORMAN 920497.

The Standard Replacement section lists 3 options from ROSTRA, STANDARD MOTOR PRODUCTS and WELLS — built to original-equipment specification. ROSTRA 620127 is listed in this group.

Listed part numbers: DORMAN 920497, ROSTRA 620127 and STANDARD MOTOR PRODUCTS SLS488, plus the other parts above.

This table covers the Cruise Control switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

7 Cruise Control Switch parts for the 2016 Audi A4 come from 2 brands — ROSTRA and WELLS. The "Popular" part is WELLS 1S14794.

Part numbers include WELLS 1S14794, ROSTRA 641017 and ROSTRA 641018, among others listed above.

This table covers the dimmer switches that select headlamp high and low beam. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

7 Dimmer Switch parts for the 2016 Audi A4 come from 2 brands — ROSTRA and WELLS. The "Popular" part is WELLS 1S14794.

This group includes WELLS 1S14794, ROSTRA 641017 and ROSTRA 641018 and the remaining parts above.

This table covers the relays that control the Fog / Driving Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

One part is listed for the 2016 Audi A4 — HELLA 933332451.

This table covers the Fog / Driving Lamp switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

4 Fog / Driving Lamp Switch parts for the 2016 Audi A4 come from 2 brands — ROSTRA and WELLS.

Listed part numbers: ROSTRA 650733, ROSTRA 651299 and WELLS 1S14792, plus the other parts above.

This table covers the relays that control the Fuel Pump / Circuit Opening circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

3 Fuel Pump / Circuit Opening Relay parts are listed for the 2016 Audi A4, from HELLA, STANDARD MOTOR PRODUCTS and WELLS.

Part numbers include HELLA 933332451, STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.

This table covers the Hazard Warning switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

2 Hazard Warning Switch parts for the 2016 Audi A4 come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.

Listed part numbers: STANDARD MOTOR PRODUCTS HZS279 and WELLS 1S12829.

This table covers the column or dash switches that control the exterior lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

4 Headlamp Switch parts for the 2016 Audi A4 come from 2 brands — ROSTRA and WELLS.

Listed part numbers: ROSTRA 650733, ROSTRA 651299 and WELLS 1S14792, plus the other parts above.

This table covers the relays that control the Horn circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

This group shows a single part: WELLS 1R2303.

This table covers the ignition switches that feed the starter circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

3 Ignition Starter Switch parts for the 2016 Audi A4 come from 2 brands — WELLS and STANDARD MOTOR PRODUCTS.

This group includes STANDARD MOTOR PRODUCTS US1477, WELLS 1S16925 and WELLS 1S17494.

This table covers the Instrument Panel Dimmer switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

4 Instrument Panel Dimmer Switch parts are listed for the 2016 Audi A4, from ROSTRA and WELLS.

Listed part numbers: ROSTRA 650733, ROSTRA 651299 and WELLS 1S14792, plus the other parts above.

This table covers the relays that control the Multi-Function circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

2 Multi-Function Relay parts are listed for the 2016 Audi A4, from BOSCH and WELLS.

Part numbers include BOSCH 0986AH0307 and WELLS 1R1007.

This table covers the Neutral Safety Switch / Range sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

One part is listed for the 2016 Audi A4 — STANDARD MOTOR PRODUCTS NS769.

This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch. Read more

11 Oil Pressure Sender / Switch parts are listed for the 2016 Audi A4, from STANDARD MOTOR PRODUCTS, BECK/ARNLEY, WELLS and 4 other brands. BECK/ARNLEY 2011754 carries the "Popular" badge.

Economy: 1 part, from ÜRO PARTS. A representative part number is ÜRO PARTS 038919081.

The Standard Replacement section: 9 options from STANDARD MOTOR PRODUCTS, BECK/ARNLEY, WELLS and 2 other brands. BECK/ARNLEY 2011754 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

This table covers the switches that command each window motor. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

4 Power Window Switch parts are listed for the 2016 Audi A4, from MARELLI and WELLS.

Part numbers include MARELLI CI51060, MARELLI CI51062 and WELLS 1S13086, among others listed above.

This table covers the relays that control the Radiator Fan circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

This group shows a single part: HELLA 933332451.

This table covers the relays that control the Starter Motor Control circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

2 Starter Motor Control Relay parts for the 2016 Audi A4 come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.

Part numbers include STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.

This table covers the Trunk Lid / Tailgate Release switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

This group shows a single part: ÜRO PARTS 5N0827566T.

This table covers the combination / turn-signal switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

7 Turn Signal Switch parts are listed for the 2016 Audi A4, from ROSTRA and WELLS. WELLS 1S14794 carries the "Popular" badge.

This group includes WELLS 1S14794, ROSTRA 641017 and ROSTRA 641018 and the remaining parts above.

This table covers the relays that control the Washer Pump circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

2 Washer Pump Relay parts are listed for the 2016 Audi A4, from STANDARD MOTOR PRODUCTS and WELLS.

Part numbers include STANDARD MOTOR PRODUCTS RY577 and WELLS 1R2303.

This table covers the Wiper / Washer switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

7 Wiper / Washer Switch parts for the 2016 Audi A4 come from 2 brands — ROSTRA and WELLS. The "Popular" part is WELLS 1S14794.

Listed part numbers: WELLS 1S14794, ROSTRA 641017 and ROSTRA 641018, plus the other parts above.