The 2025 Audi S3 has 23 electrical parts with verified fitment on this page — 4 part types and 12 brands, covering the 2.0L L4 Turbocharged engine. Each part includes a manufacturer part number and application notes.
On the 2025 Audi S3, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. Most of the listed parts are Battery (10 parts), Starter Motor (9 parts) and Alternator / Generator (2 parts). The other 1 part type covers the remaining 2 parts.
The 2025 Audi S3 came with a single engine, the 2.0L L4 Turbocharged, and every part is verified against it.
12 brands supply electrical parts for the 2025 Audi S3, led by FVP (4 parts), DEKA (3 parts) and BOSCH (3 parts), plus 9 more brands. Quality grades include Remanufactured and New.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2025 Audi S3. 4 parts have it, including DEKA 9A48 (Battery) and BOSCH SR6601N (Starter Motor). Each part number opens a page with every vehicle that part fits.
Alternator / Generator
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP | SK221081 | 🇺🇸 US 🇨🇦 CA | with 140 Amp Bosch Alternator6-Groove Clutch Pulley | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PURE ENERGY | 10272 | 🇺🇸 US 🇨🇦 CA | 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.
2 Alternator / Generator parts for the 2025 Audi S3 come from 2 brands — SKP and PURE ENERGY.
The New section lists 1 option from SKP — brand-new units rather than rebuilt ones. SKP SK221081 is listed in this group.
The Remanufactured section lists 1 option from PURE ENERGY — factory-rebuilt units with new wear components. PURE ENERGY 10272 is listed in this group.
This group includes SKP SK221081 and PURE ENERGY 10272.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular | 9A48 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| DEKA Popular | 9A94R | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| BOSCH | S6587B | 🇺🇸 US 🇨🇦 CA | AGMAGM | View on Amazon |
| DEKA | 9A47 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| EXIDE | MXH5L247 | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 47 (H5) | View on Amazon |
| EXIDE | MXH6L348 | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 48 (H6) | View on Amazon |
| EXIDE | MXH7L494R | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 94R (H7) | View on Amazon |
| FVP | P94RAGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 94R | View on Amazon |
| FVP | P47AGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 47 | View on Amazon |
| FVP | P48AGM | 🇺🇸 US 🇨🇦 CA | 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.
10 Battery parts are listed for the 2025 Audi S3, from DEKA, EXIDE, FVP and 1 other brand. DEKA 9A48 carries the "Popular" badge.
Parking Aid Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | F00E270804 | 🇺🇸 US 🇨🇦 CA | Fits Rear Outer | View on Amazon |
| VARIOUS MFR | AU1075109 | 🇺🇸 US 🇨🇦 CA | 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.
2 Parking Aid Sensor parts for the 2025 Audi S3 come from 2 brands — BOSCH and VARIOUS MFR.
Listed part numbers: BOSCH F00E270804 and VARIOUS MFR AU1075109.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular | SR6601N | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WAI GLOBAL Popular | 30236N | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VALEO | 438524 | 🇺🇸 US 🇨🇦 CA | Valeo Origins New Stop&StartFamily: Valeo OE | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | 12791 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY | 12791 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| REMY | 16655 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| TERREPOWER | 52230 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 011613291 | 🇺🇸 US | View on Amazon | |
| HELLA | 012528581 | 🇺🇸 US | 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 for the 2025 Audi S3 come from 8 brands — HELLA, BOSCH, WAI GLOBAL and 5 other brands. The "Popular" part is BOSCH SR6601N.
The New section: 3 options from BOSCH, WAI GLOBAL and VALEO. BOSCH SR6601N is listed in this group.
The Remanufactured section: 4 options from FVP, PURE ENERGY, REMY and 1 other brand. FVP 12791 is listed in this group.
2 further parts sit outside the graded sections, with the same engine-level match.
Part numbers include BOSCH SR6601N, WAI GLOBAL 30236N and VALEO 438524, among others listed above.
Buying Electrical Parts for a 2025 Audi S3
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.
- Confirm you have the 2.0L L4 Turbocharged engine — every part on this page is matched to it.
- 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 S3?
Our catalog currently lists 23 electrical parts for the 2025 Audi S3 across 4 subcategories and 12 brands, covering the 2.0L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 2025 Audi S3?
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 S3 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 S3?
Every part on this page is matched to the 2.0L L4 Turbocharged engine. 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 S3
Electrical Parts for Other Audi S3 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.