2016 Audi S4 Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

7 Alternator / Generator parts are listed for the 2016 Audi S4, from WAI GLOBAL, PURE ENERGY, VALEO and 2 other brands. WAI GLOBAL 11717N carries the "Popular" badge.

In the New grade, WAI GLOBAL and VALEO supply 3 parts: brand-new units rather than rebuilt ones. A representative part number is WAI GLOBAL 11717N.

In the Remanufactured grade, PURE ENERGY, REMY and TERREPOWER supply 4 parts: factory-rebuilt units with new wear components. A representative part number is PURE ENERGY 10293.

Part numbers include WAI GLOBAL 11717N, WAI GLOBAL 11800N and VALEO 439795, among others listed above.

This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

This group shows a single part: INA EA02071.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

40 Battery parts for the 2016 Audi S4 come from 9 brands — ACDELCO, DEKA, LUCAS and 6 other brands. The "Popular" part is ACDELCO 47AGM. Grades run from AGM (Extended Life) through Performance AGM (Extended Life + Increased Power); AGM (Extended Life) is the most populated section, led by ACDELCO, DEKA, LUCAS and 5 other brands.

This table covers the Battery Current 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

4 Battery Current Sensor parts are listed for the 2016 Audi S4, from WELLS, DORMAN and HELLA.

Listed part numbers: DORMAN 601702, HELLA 010942901 and WELLS 5S16152, plus the other parts above.

This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse. Read more

10 Fuse parts for the 2016 Audi S4 come from 2 brands — LITTELFUSE and BUSSMANN. The "Popular" part is LITTELFUSE ATO15.

In the 10 Amp grade, LITTELFUSE supplies 2 parts: grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE LMIN10.

The 15 Amp section lists 2 options from LITTELFUSE — grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE ATO15 is listed in this group.

The 20 Amp section lists 1 option from LITTELFUSE — grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE ATO20 is listed in this group.

In the 25 Amp grade, LITTELFUSE supplies 1 part: grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE ATO25.

In the 30 Amp grade, LITTELFUSE supplies 1 part: grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE ATO30.

The 35 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "35 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATC35 is listed in this group.

In the 5 Amp grade, LITTELFUSE supplies 2 parts: grouped under the catalog's "5 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE ATO5.

This table covers the HID Headlamp igniters. Read more

This group shows a single part: ÜRO PARTS 8K0941597E.

This table covers the HID Lighting ballasts. Read more

3 HID Lighting Ballast parts are listed for the 2016 Audi S4, from MARELLI, VEMO and WELLS.

Part numbers include MARELLI LRB290, VEMO V10730387KIT1 and WELLS 6R1084.

This table covers the horns mounted in the front of the vehicle. Read more

This group shows a single part: HELLA 011225841.

This table covers the modules that control the exterior lighting. Read more

6 Lighting Control Module (LCM) parts are listed for the 2016 Audi S4, from VEMO, MARELLI and WELLS. VEMO V10730536 carries the "Popular" badge.

Listed part numbers: VEMO V10730536, VEMO V10730387KIT1 and MARELLI LRB340, plus the other parts above.

This table covers the ultrasonic park-aid sensors in the bumper. 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

5 Parking Aid Sensor parts are listed for the 2016 Audi S4, from STANDARD MOTOR PRODUCTS, HELLA and VEMO. STANDARD MOTOR PRODUCTS PPS120 carries the "Popular" badge.

Listed part numbers: STANDARD MOTOR PRODUCTS PPS120, HELLA 358141711 and HELLA 358270331, plus the other parts above.

This table covers the Rain 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

VEMO supplies both parts for the 2016 Audi S4.

This group includes VEMO V10721602 and VEMO V10721604.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

7 Starter Motor parts are listed for the 2016 Audi S4, from TYC, ULTRA-POWER, WAI GLOBAL and 4 other brands. TYC 119113 carries the "Popular" badge.

New: 3 parts, from TYC, ULTRA-POWER and WAI GLOBAL. A representative part number is TYC 119113.

Remanufactured: 4 parts, from BOSCH, PURE ENERGY, REMY and 1 other brand. A representative part number is BOSCH SR0850X.

Part numbers include TYC 119113 and WAI GLOBAL 17692N, among others listed above.

This table covers the regulators that control alternator output voltage. Read more

This group shows a single part: BOSCH 1986AE0016.