This page lists 10 ignition parts for the 2025 Audi S3, across 4 part types, covering the 2.0L L4 Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2025 Audi S3, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. 9 parts of the 10 listed are Ignition Coil (5 parts), Camshaft Position Sensor (2 parts) and Crankshaft Position Sensor (2 parts). The other 1 part type covers the remaining 1 part.
Every part on this page is matched to the 2.0L L4 Turbocharged — the only engine offered in the 2025 Audi S3.
The most listed brands for 2025 Audi S3 ignition parts are WELLS (3 parts), HOLSTEIN (2 parts) and BECK/ARNLEY (2 parts), plus 3 more brands. Quality grades include Economy and Standard Replacement.
1 part on this 2025 Audi S3 page carries a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — BOSCH 0986221072 (Ignition Coil). Click any part number to see every vehicle that part fits.
Camshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2CAM0327 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 5S14774 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the sensors that report camshaft position to the ECU. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
2 Camshaft Position Sensor parts are listed for the 2025 Audi S3, from HOLSTEIN and WELLS.
In the Economy grade, HOLSTEIN supplies 1 part: the catalog's value-priced group. A representative part number is HOLSTEIN 2CAM0327.
The Standard Replacement section lists 1 option from WELLS — built to original-equipment specification. WELLS 5S14774 is listed in this group.
Listed part numbers: HOLSTEIN 2CAM0327 and WELLS 5S14774.
Crankshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2CRK0328 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 5S12685 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the sensors that report crankshaft position and engine speed. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
2 Crankshaft Position Sensor parts are listed for the 2025 Audi S3, from HOLSTEIN and WELLS.
Economy: 1 part, from HOLSTEIN. A representative part number is HOLSTEIN 2CRK0328.
The Standard Replacement section: 1 option from WELLS. WELLS 5S12685 is listed in this group.
This group includes HOLSTEIN 2CRK0328 and WELLS 5S12685.
Ignition Coil
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular | 0986221072 | 🇺🇸 US 🇨🇦 CA | Fits with Eldor Unitor with Hitachi Unit | View on Amazon |
| BECK/ARNLEY | 1788607 | 🇺🇸 US 🇨🇦 CA | Hitachi Coil, To 5/12/25 | View on Amazon |
| BECK/ARNLEY | 1788574 | 🇺🇸 US 🇨🇦 CA | Eldor coil | View on Amazon |
| DENSO | 6739206 | 🇺🇸 US 🇨🇦 CA | Direct Ignition Coil or Coil On Plug | View on Amazon |
| WELLS | 5C2280 | 🇺🇸 US 🇨🇦 CA | with Tubular Coil Boot | View on Amazon |
This table covers the coils that fire each spark plug. Typical signs include a misfire that follows one cylinder, a snap in damp weather, or a coil that is swollen or cracked. Swap a suspect coil with a neighbor to confirm, then replace boots that tore on the way off.
5 Ignition Coil parts are listed for the 2025 Audi S3, from BECK/ARNLEY, BOSCH, DENSO and 1 other brand. BOSCH 0986221072 carries the "Popular" badge.
Part numbers include BOSCH 0986221072, BECK/ARNLEY 1788607 and BECK/ARNLEY 1788574, among others listed above.
Spark Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION | 7600 | 🇺🇸 US 🇨🇦 CA | Double Platinum PowerPre-Set Gap: 0.028" | View on Amazon |
This table covers the spark plugs for this engine. Typical signs include misfire under load, rough idle, or a flashing check-engine light. Verify the gap even on pre-gapped plugs, and replace coil boots that come off a high-mileage engine.
This group shows a single part: CHAMPION 7600.
Buying Ignition Parts for a 2025 Audi S3
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- 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, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Ignition Coil and Camshaft Position Sensor .
Frequently Asked Questions
How many ignition parts fit the 2025 Audi S3?
Our catalog currently lists 10 ignition parts for the 2025 Audi S3 across 4 subcategories and 6 brands, covering the 2.0L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 2025 Audi S3?
Common symptoms include misfires under load, rough idle, flashing check-engine light, or poor starting in damp weather. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What spark-plug gap is listed for the 2025 Audi S3?
Notes on this page include a 0.028" pre-set gap. Still verify against spec — even “pre-gapped” plugs should be checked before they go in.
What should I replace at the same time?
Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
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 gap matters even on “pre-gapped” plugs — verify against spec, and replace coil boots when they come off a high-mileage engine. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2025 Audi S3
Ignition 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.