17 Electrical parts are listed for the 2026 Audi A3, in 2 part types, covering both the 1.4L L4 Turbocharged and the 2.0L L4 Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
The electrical system on the 2026 Audi A3 covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. All 17 listed parts are Battery (10 parts) and Starter Motor (7 parts).
The 2026 Audi A3 was sold with both the 1.4L L4 Turbocharged and the 2.0L L4 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2026 Audi A3 electrical parts are FVP (4 parts), DEKA (3 parts) and EXIDE (3 parts), plus 5 more brands. Quality grades include New and Remanufactured.
4 parts on this 2026 Audi A3 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including DEKA 9A48 (Battery) and BOSCH SR6601N (Starter Motor). Click any part number to see every vehicle that part fits.
Battery
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular Fits: 2.0L L4 Turbocharged | 9A48 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| DEKA Popular Fits: 2.0L L4 Turbocharged | 9A94R | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| BOSCH Fits: 2.0L L4 Turbocharged | S6587B | 🇺🇸 US 🇨🇦 CA | AGMAGM | View on Amazon |
| DEKA Fits: 2.0L L4 Turbocharged | 9A47 | 🇺🇸 US 🇨🇦 CA | IntimidatorAGM | View on Amazon |
| EXIDE Fits: 2.0L L4 Turbocharged | MXH5L247 | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 47 (H5) | View on Amazon |
| EXIDE Fits: 2.0L L4 Turbocharged | MXH6L348 | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 48 (H6) | View on Amazon |
| EXIDE Fits: 2.0L L4 Turbocharged | MXH7L494R | 🇺🇸 US 🇨🇦 CA | Marathon MaxBCI Group 94R (H7) | View on Amazon |
| FVP Fits: 2.0L L4 Turbocharged | P94RAGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 94R | View on Amazon |
| FVP Fits: 2.0L L4 Turbocharged | P47AGM | 🇺🇸 US 🇨🇦 CA | Platinum AGMBCI Group: 47 | View on Amazon |
| FVP Fits: 2.0L L4 Turbocharged | 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 for the 2026 Audi A3 come from 4 brands — DEKA, EXIDE, FVP and 1 other brand. The "Popular" part is DEKA 9A48.
Starter Motor
New
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular Fits: 2.0L L4 Turbocharged | SR6601N | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WAI GLOBAL Popular Fits: 2.0L L4 Turbocharged | 30236N | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VALEO Fits: 2.0L L4 Turbocharged | 438524 | 🇺🇸 US 🇨🇦 CA | Valeo Origins New Stop&StartFamily: Valeo OE | View on Amazon |
Remanufactured
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 2.0L L4 Turbocharged | 12791 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| PURE ENERGY Fits: 2.0L L4 Turbocharged | 12791 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 2.0L L4 Turbocharged | 011613291 | 🇺🇸 US | View on Amazon | |
| HELLA Fits: 2.0L L4 Turbocharged | 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.
7 Starter Motor parts are listed for the 2026 Audi A3, from HELLA, BOSCH, WAI GLOBAL and 3 other brands. BOSCH SR6601N carries the "Popular" badge.
In the New grade, BOSCH, WAI GLOBAL and VALEO supply 3 parts: brand-new units rather than rebuilt ones. A representative part number is BOSCH SR6601N.
In the Remanufactured grade, FVP and PURE ENERGY supply 2 parts: factory-rebuilt units with new wear components. A representative part number is FVP 12791.
2 ungrouped parts are not assigned to a grade, 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 2026 Audi A3
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 2026 Audi A3?
Our catalog currently lists 17 electrical parts for the 2026 Audi A3 across 2 subcategories and 8 brands, covering both the 1.4L L4 Turbocharged and the 2.0L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical parts differ between 2026 Audi A3 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 2026 Audi A3?
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 2026 Audi A3 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 2026 Audi A3?
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 2026 Audi A3
Electrical Parts for Other Audi A3 Years
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