The 2025 Audi S6 has 22 electrical parts with verified fitment on this page — 2 part types and 10 brands, covering both the 2.9L V6 Turbocharged and the ELECTRIC. Each part includes a manufacturer part number and application notes.
The electrical system on the 2025 Audi S6 covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. All 22 listed parts are Battery (13 parts) and Starter Motor (9 parts).
The 2025 Audi S6 was sold with both the 2.9L V6 Turbocharged and the ELECTRIC. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2025 Audi S6 electrical parts are FVP (4 parts), ACDELCO (3 parts) and DEKA (3 parts), plus 7 more brands. Quality grades include AGM, Remanufactured and Performance AGM.
5 parts on this 2025 Audi S6 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including ACDELCO 48AGM (Battery) and PURE ENERGY 18258 (Starter Motor). Click any part number to see every vehicle that part fits.
Battery
AGM (Extended Life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 2.9L V6 Turbocharged | 48AGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 48 | View on Amazon |
| DEKA Popular Fits: 2.9L V6 Turbocharged | 9A47 | 🇺🇸 US 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| DEKA Popular Fits: 2.9L V6 Turbocharged | 9A48 | 🇺🇸 US 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| ACDELCO Fits: 2.9L V6 Turbocharged | 48AGMHR | 🇺🇸 US 🇨🇦 CA | High ReserveAGM | View on Amazon |
| ACDELCO Fits: 2.9L V6 Turbocharged | 95RAGM | 🇺🇸 US 🇨🇦 CA | AGMBCI Group: 95R | View on Amazon |
| DEKA Fits: 2.9L V6 Turbocharged | 9A95R | 🇺🇸 US 🇲🇽 MX | IntimidatorAGM | View on Amazon |
| EXIDE Fits: 2.9L V6 Turbocharged | MXH6L348 | 🇺🇸 US 🇲🇽 MX | Marathon MaxBCI Group 48 (H6) | View on Amazon |
| EXIDE Fits: 2.9L V6 Turbocharged | MXH9L695R | 🇺🇸 US 🇲🇽 MX | Marathon MaxBCI Group 95R (H9) | View on Amazon |
| FVP Fits: 2.9L V6 Turbocharged | P48AGM | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum AGMBCI Group: 48 | View on Amazon |
| MOTORCRAFT Fits: 2.9L V6 Turbocharged | BAGM95RH9 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Tested Tough AGMBCI Group 95R or BCI Group: 95R/H9 | View on Amazon |
Performance AGM (Extended Life + Increased Power)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FULLRIVER Fits: 2.9L V6 Turbocharged | FT68048 | 🇺🇸 US | BCI Group 48(Length X Width X Height) 10.94 In x 6.89 In x 7.48 In | View on Amazon |
| FULLRIVER Fits: 2.9L V6 Turbocharged | FT89049 | 🇺🇸 US | BCI Group 49(Length X Width X Height) 13.9 In x 6.89 In x 7.48 In | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: ELECTRIC | P48AGM | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum AGMBCI Group: 48 | 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.
13 Battery parts for the 2025 Audi S6 come from 6 brands — ACDELCO, DEKA, EXIDE and 3 other brands. The "Popular" part is ACDELCO 48AGM.
In the AGM (Extended Life) grade, ACDELCO, DEKA, EXIDE and 2 other brands supply 10 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 48AGM.
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.
1 further part sits outside the graded sections, with the same engine-level match.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALEO Fits: 2.9L V6 Turbocharged | 438645 | 🇺🇸 US 🇲🇽 MX | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY Popular Fits: 2.9L V6 Turbocharged | 18258 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| PURE ENERGY Popular Fits: 2.9L V6 Turbocharged | 12902 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| FVP Fits: 2.9L V6 Turbocharged | 12902 | 🇺🇸 US 🇲🇽 MX | Remanufactured | View on Amazon |
| FVP Fits: 2.9L V6 Turbocharged | 18258 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY Fits: 2.9L V6 Turbocharged | 16407 | 🇺🇸 US 🇲🇽 MX | Remanufactured | View on Amazon |
| REMY Fits: 2.9L V6 Turbocharged | 16657 | 🇺🇸 US 🇲🇽 MX | Remanufactured | View on Amazon |
| TERREPOWER Fits: 2.9L V6 Turbocharged | 52182 | 🇺🇸 US 🇲🇽 MX | Remanufactured | View on Amazon |
| TERREPOWER Fits: 2.9L V6 Turbocharged | 52232 | 🇺🇸 US 🇲🇽 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.
9 Starter Motor parts are listed for the 2025 Audi S6, from PURE ENERGY, FVP, REMY and 2 other brands. PURE ENERGY 18258 carries the "Popular" badge.
In the New grade, VALEO supplies 1 part: brand-new units rather than rebuilt ones. A representative part number is VALEO 438645.
In the Remanufactured grade, PURE ENERGY, FVP, REMY and 1 other brand supply 8 parts: factory-rebuilt units with new wear components. A representative part number is PURE ENERGY 18258.
Part numbers include PURE ENERGY 18258, VALEO 438645 and PURE ENERGY 12902, among others listed above.
Buying Electrical Parts for a 2025 Audi S6
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. Every electrical part here is 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 Starter Motor .
Frequently Asked Questions
How many electrical parts fit the 2025 Audi S6?
Our catalog currently lists 22 electrical parts for the 2025 Audi S6 across 2 subcategories and 10 brands, covering both the 2.9L V6 Turbocharged and the ELECTRIC. Each part is matched to the engine(s) it fits.
Do electrical parts differ between 2025 Audi S6 engines?
Yes. Every electrical part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 2025 Audi S6?
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 2025 Audi S6 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 2025 Audi S6?
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 2025 Audi S6
Electrical Parts for Other Audi S6 Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.