2017 Audi A8 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

This group shows a single part: 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

5 A/C Refrigerant Pressure Switch parts for the 2017 Audi A8 come from 4 brands — UAC, FOUR SEASONS, VEMO and 1 other brand. The "Popular" part is UAC SW11224C. 2 parts fit every engine; the other 3 are engine-specific.

Listed part numbers: UAC SW11224C, FOUR SEASONS 37427 and UAC SW11103C, plus the other parts above.

This table covers the A/C Thermo 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

One part is listed for the 2017 Audi A8 — GPD 1713414.

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 are listed for the 2017 Audi A8, from HELLA, STANDARD MOTOR PRODUCTS and WELLS. All of them fit every engine offered in the 2017 A8.

This group includes 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

7 Brake Light Switch parts for the 2017 Audi A8 come from 6 brands — VEMO, DORMAN, ROSTRA and 3 other brands. The "Popular" part is VEMO V10730158. 3 parts fit every engine; the other 4 are engine-specific.

The Economy section lists 3 options from VEMO and DORMAN — the catalog's value-priced group. VEMO V10730158 is listed in this group.

In the Standard Replacement grade, ROSTRA, STANDARD MOTOR PRODUCTS, VNE and 1 other brand supply 4 parts: built to original-equipment specification. A representative part number is ROSTRA 620127.

Listed part numbers: VEMO V10730158, VEMO V10730302 and DORMAN 920497, plus the other 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

This group shows a single part: HELLA 933332451.

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 for the 2017 Audi A8 come from 2 brands — VEMO and HELLA. 1 part fits every engine; the other 2 are engine-specific.

This group includes HELLA 933332451, VEMO V15710064 and VEMO V15710063.

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

4 Horn Relay parts are listed for the 2017 Audi A8, from HELLA, STANDARD MOTOR PRODUCTS, VEMO and 1 other brand. 2 parts fit every engine; the other 2 are engine-specific.

Listed part numbers: HELLA 965453801, STANDARD MOTOR PRODUCTS RY577 and VEMO V15710040, plus the other parts above.

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

One part is listed for the 2017 Audi A8 — WELLS 1S17872.

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

3 Multi-Function Relay parts for the 2017 Audi A8 come from 3 brands — BOSCH, ÜRO PARTS and WELLS. Every part fits all 3 engine options (3.0L V6 Supercharged, 4.0L V8 Turbocharged and 6.3L W12).

Listed part numbers: BOSCH 0986AH0307, ÜRO PARTS 7M0951253A and WELLS 1R1007.

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

23 Oil Pressure Sender / Switch parts for the 2017 Audi A8 come from 7 brands — STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, WELLS and 4 other brands. The "Popular" part is HELLA 009600241.

The Economy section: 5 options from WALKER PRODUCTS and VEMO. VEMO V10730401 is listed in this group.

Standard Replacement: 15 parts, from STANDARD MOTOR PRODUCTS, GPD, HELLA and 2 other brands. A representative part number is HELLA 009600241.

3 further parts sit outside the graded sections, with the same engine-level match.

This table covers the Power Seat 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

VEMO supplies both parts for the 2017 Audi A8.

Part numbers include VEMO V10730560 and VEMO V10730562.

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

8 Power Window Switch parts for the 2017 Audi A8 come from 3 brands — WELLS, STANDARD MOTOR PRODUCTS and VEMO. The "Popular" part is VEMO V10730028. 7 parts fit every engine; the other 1 is engine-specific.

This group includes VEMO V10730028, WELLS 1S13089 and WELLS 1S13092 and the remaining parts 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

One part is listed for the 2017 Audi A8 — HELLA 933332451.

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

2 Trunk Lid / Tailgate Release Switch parts are listed for the 2017 Audi A8, from ÜRO PARTS and VEMO.

This group includes ÜRO PARTS 4G0959831A5PR and VEMO V10730430.

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

This group shows a single part: VEMO V15803313.