This page lists 35 electrical parts for the 2021 Audi A6, across 5 part types, covering both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
On the 2021 Audi A6, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. 31 parts of the 35 listed are Battery (16 parts), Parking Aid Sensor (10 parts) and Starter Motor (5 parts). The other 2 part types cover the remaining 4 parts.
The 2021 Audi A6 was sold with both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. 15 parts fit every engine; the other 20 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Audi A6 electrical parts are STANDARD MOTOR PRODUCTS (6 parts), FVP (3 parts) and DEKA (3 parts), plus 13 more brands. Quality grades include AGM, Remanufactured and New.
7 parts on this 2021 Audi A6 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including DEKA 9A47 (Battery) and STANDARD MOTOR PRODUCTS PPS120 (Parking Aid Sensor). Click any part number to see every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL Fits: 2.0L L4 Turbocharged | 39015N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A6 Quattro | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 2.0L L4 Turbocharged | 10474 | 🇲🇽 MX | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 2.0L L4 Turbocharged | 10474 | 🇲🇽 MX | Remanufactured | View on Amazon |
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.
3 Alternator / Generator parts are listed for the 2021 Audi A6, from WAI GLOBAL, FVP and PURE ENERGY.
In the New grade, WAI GLOBAL supplies 1 part: brand-new units rather than rebuilt ones. A representative part number is WAI GLOBAL 39015N.
In the Remanufactured grade, FVP and PURE ENERGY supply 2 parts: factory-rebuilt units with new wear components. A representative part number is FVP 10474.
This group includes WAI GLOBAL 39015N and FVP 10474 and the remaining parts above.
Battery
AGM (Extended Life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular Fits: all 2021 A6 engines | 9A47 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| DEKA Popular Fits: all 2021 A6 engines | 9A48 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| LUCAS Popular Fits: all 2021 A6 engines | LBAGM004A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group: 48AGM | View on Amazon |
| LUCAS Popular Fits: all 2021 A6 engines | LBAGM007A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group: 95RAGM | View on Amazon |
| ACDELCO Fits: all 2021 A6 engines | 48AGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 48 | View on Amazon |
| ACDELCO Fits: all 2021 A6 engines | 48AGMHR | 🇺🇸 US 🇨🇦 CA | High ReserveAGM | View on Amazon |
| ACDELCO Fits: all 2021 A6 engines | 95RAGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 95R | View on Amazon |
| DEKA Fits: all 2021 A6 engines | 9A95R | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| EXIDE Fits: all 2021 A6 engines | MXH6L348 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Marathon MaxBCI Group 48 (H6) | View on Amazon |
| EXIDE Fits: all 2021 A6 engines | MXH9L695R | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Marathon MaxBCI Group 95R (H9) | View on Amazon |
| FVP Fits: all 2021 A6 engines | P48AGM | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum AGMBCI Group: 48 | View on Amazon |
| MOTORCRAFT Fits: all 2021 A6 engines | BAGM95RH9 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Tested Tough AGMBCI Group 95R or BCI Group: 95R/H9 | View on Amazon |
| P1MAX Fits: 2.0L L4 Turbocharged | PMAGMH648 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 48 AGM760 CCA | View on Amazon |
| P1MAX Fits: 2.0L L4 Turbocharged | PMAGMH995R | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 95R AGM950 CCA | View on Amazon |
Performance AGM (Extended Life + Increased Power)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FULLRIVER Fits: all 2021 A6 engines | FT68048 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 48(Length X Width X Height) 10.94 In x 6.89 In x 7.48 In | View on Amazon |
| FULLRIVER Fits: all 2021 A6 engines | FT89049 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BCI Group 49(Length X Width X Height) 13.9 In x 6.89 In x 7.48 In | View on Amazon |
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.
16 Battery parts for the 2021 Audi A6 come from 8 brands — DEKA, ACDELCO, LUCAS and 5 other brands. The "Popular" part is DEKA 9A47. 14 parts fit every engine; the other 2 are engine-specific.
In the AGM (Extended Life) grade, DEKA, ACDELCO, LUCAS and 4 other brands supply 14 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is DEKA 9A47.
In the Performance AGM (Extended Life + Increased Power) grade, FULLRIVER supplies 2 parts: grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. A representative part number is FULLRIVER FT68048.
Lighting Control Module (LCM)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: all 2021 A6 engines | V10730667 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | From 06/06/2018To 01/23/2023 | View on Amazon |
This table covers the modules that control the exterior lighting.
One part is listed for the 2021 Audi A6 — VEMO V10730667.
Parking Aid Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 2.0L L4 Turbocharged | PPS120 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 2.0L L4 Turbocharged | PPS112 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
| HELLA Fits: 2.0L L4 Turbocharged | 358141711 | 🇺🇸 US | 3-Pin ConnectorPlugged | View on Amazon |
| HELLA Fits: 2.0L L4 Turbocharged | 358270331 | 🇺🇸 US | 3-Pin ConnectorPlugged | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | PPS212 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A6 QuattroFront Side | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | PPS211 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Outer | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | PPS213 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Rear OuterA6 Quattro | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | PPS214 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front InnerA6 Quattro | View on Amazon |
| VARIOUS MFR Fits: 2.0L L4 Turbocharged | AU1075104 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Customer Paints to Match | View on Amazon |
| VARIOUS MFR Fits: 2.0L L4 Turbocharged | AU1075103 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Customer Paints to Match | View on Amazon |
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.
10 Parking Aid Sensor parts are listed for the 2021 Audi A6, from STANDARD MOTOR PRODUCTS, HELLA and VARIOUS MFR. STANDARD MOTOR PRODUCTS PPS120 carries the "Popular" badge.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL Fits: 2.0L L4 Turbocharged | 31089N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A6 Quattro | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY Popular Fits: 2.0L L4 Turbocharged | 18256 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| FVP Fits: 2.0L L4 Turbocharged | 18256 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY Fits: 2.0L L4 Turbocharged | 16409 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| TERREPOWER Fits: 2.0L L4 Turbocharged | 52184 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
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.
5 Starter Motor parts are listed for the 2021 Audi A6, from WAI GLOBAL, PURE ENERGY, FVP and 2 other brands. PURE ENERGY 18256 carries the "Popular" badge.
New: 1 part, from WAI GLOBAL. A representative part number is WAI GLOBAL 31089N.
Remanufactured: 4 parts, from PURE ENERGY, FVP, REMY and 1 other brand. A representative part number is PURE ENERGY 18256.
This group includes PURE ENERGY 18256 and WAI GLOBAL 31089N and the remaining parts above.
Buying Electrical Parts for a 2021 Audi A6
On this vehicle, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.
- Match the engine first. Some electrical parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, clean or renew the battery terminals and grounds with any charging-system repair.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Battery and Parking Aid Sensor .
Frequently Asked Questions
How many electrical parts fit the 2021 Audi A6?
Our catalog currently lists 35 electrical parts for the 2021 Audi A6 across 5 subcategories and 16 brands, covering both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical parts differ between 2021 Audi A6 engines?
Some do. 15 parts fit every engine; the other 20 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical problems on a 2021 Audi A6?
Common symptoms include slow cranking on cold mornings, a battery light that flickers, dim lights at idle, or a check-engine code pointing at a sensor circuit. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, clean or renew the battery terminals and grounds with any charging-system repair.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 Audi A6 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 Audi A6?
First match the engine — each row shows which engine(s) the part fits. Then test before replacing — a failed alternator and a bad ground can look identical, and sensors are frequently condemned for wiring faults. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Audi A6
Electrical Parts for Other Audi A6 Years
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