2016 Audi A4 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

17 Alternator / Generator parts are listed for the 2016 Audi A4, from PURE ENERGY, WAI GLOBAL, BOSCH and 7 other brands. SKP SK211706 carries the "Popular" badge.

In the New grade, WAI GLOBAL, SKP, ULTRA-POWER and 3 other brands supply 7 parts: brand-new units rather than rebuilt ones. A representative part number is SKP SK211706.

In the Remanufactured grade, PURE ENERGY, REMY, TERREPOWER and 2 other brands supply 8 parts: factory-rebuilt units with new wear components. A representative part number is BOSCH AL9452X.

2 ungrouped parts are not assigned to a grade, with the same engine-level match.

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

6 Alternator / Generator Pulley parts for the 2016 Audi A4 come from 5 brands — LITENS, INA, VEMO and 2 other brands. The "Popular" part is INA EA0276. 1 part fits every engine; the other 5 are engine-specific.

Part numbers include INA EA0276, VEMO V10230003 and CONTINENTAL 49934, among others listed above.

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

41 Battery parts for the 2016 Audi A4 come from 9 brands — ACDELCO, DEKA, LUCAS and 6 other brands. The "Popular" part is ACDELCO 47AGM. They are grouped as AGM (Extended Life) and Performance AGM (Extended Life + Increased Power), with AGM (Extended Life) the largest group at 37 parts from 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

7 Battery Current Sensor parts are listed for the 2016 Audi A4, from WELLS, STANDARD MOTOR PRODUCTS, DORMAN and 1 other brand. DORMAN 601702 carries the "Popular" badge. 6 parts fit every engine; the other 1 is engine-specific.

Part numbers include DORMAN 601702, HELLA 010942901 and STANDARD MOTOR PRODUCTS BSC5, among others listed 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 A4 come from 2 brands — LITTELFUSE and BUSSMANN. The "Popular" part is LITTELFUSE ATO15. Every part fits both the 1.8L L4 Turbocharged and the 2.0L L4 Turbocharged.

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 A4, from MARELLI, VEMO and WELLS. All of them fit every engine offered in the 2016 A4.

Listed part numbers: 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 A4, from VEMO, MARELLI and WELLS. VEMO V10730387KIT1 carries the "Popular" badge. 5 parts fit every engine; the other 1 is engine-specific.

Listed part numbers: VEMO V10730387KIT1, VEMO V10730536 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

7 Parking Aid Sensor parts are listed for the 2016 Audi A4, from STANDARD MOTOR PRODUCTS, VALEO, HELLA and 1 other brand. STANDARD MOTOR PRODUCTS PPS120 carries the "Popular" badge. 5 parts fit every engine; the other 2 are engine-specific.

Listed part numbers: STANDARD MOTOR PRODUCTS PPS120, VALEO 890001 and HELLA 358141711, 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 A4. All of them fit every engine offered in the 2016 A4.

Listed part numbers: 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

2 Starter Motor parts are listed for the 2016 Audi A4, from FVP and PURE ENERGY.

Listed part numbers: FVP 19516, plus the other parts above.