The 2017 Audi A3 has 19 ignition parts with verified fitment on this page — 7 part types and 10 brands, covering all 3 engine options (1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged and 2.0L L4 Turbocharged). Each part includes a manufacturer part number and application notes.
On the 2017 Audi A3, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. 13 parts of the 19 listed are Camshaft Position Sensor (5 parts), Crankshaft Position Sensor (4 parts) and Ignition Coil (4 parts). The other 4 part types cover the remaining 6 parts.
The 2017 Audi A3 was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
10 brands supply ignition parts for the 2017 Audi A3, led by KARLYN / BREMI / STI (3 parts), WALKER PRODUCTS (3 parts) and WELLS (3 parts), plus 7 more brands. Quality grades include Premium and Standard Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2017 Audi A3. 1 part has it: STANDARD MOTOR PRODUCTS PC984 (Camshaft Position Sensor). Each part number opens a page with every vehicle that part fits.
Camshaft Position Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 1.4L L4 Turbocharged | PC984 | 🇲🇽 MX | Connector Shape: Rectangular | View on Amazon |
| KARLYN / BREMI / STI Fits: 1.4L L4 Turbocharged | 60449 | 🇲🇽 MX | Bremi | View on Amazon |
| WALKER PRODUCTS Fits: 1.4L L4 Turbocharged | 2352067 | 🇲🇽 MX | Sensor OnlyConnector Shape: Oval | View on Amazon |
| WELLS Fits: 1.4L L4 Turbocharged | 5S14774 | 🇲🇽 MX | View on Amazon | |
| WELLS Fits: 1.4L L4 Turbocharged | 5S15095 | 🇲🇽 MX | 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.
5 Camshaft Position Sensor parts for the 2017 Audi A3 come from 4 brands — WELLS, STANDARD MOTOR PRODUCTS, KARLYN / BREMI / STI and 1 other brand. The "Popular" part is STANDARD MOTOR PRODUCTS PC984.
Listed part numbers: STANDARD MOTOR PRODUCTS PC984, KARLYN / BREMI / STI 60449 and WALKER PRODUCTS 2352067, plus the other parts above.
Crankshaft Position Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KARLYN / BREMI / STI Fits: 1.4L L4 Turbocharged | 60472 | 🇲🇽 MX | Bremi | View on Amazon |
| MARELLI Fits: 1.4L L4 Turbocharged | SAG243 | 🇲🇽 MX | View on Amazon | |
| MARELLI Fits: 1.4L L4 Turbocharged | SAG289 | 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS Fits: 1.4L L4 Turbocharged | 2352134 | 🇲🇽 MX | Sensor OnlyColor: Gray | 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.
4 Crankshaft Position Sensor parts for the 2017 Audi A3 come from 3 brands — MARELLI, KARLYN / BREMI / STI and WALKER PRODUCTS.
Part numbers include KARLYN / BREMI / STI 60472, MARELLI SAG243 and MARELLI SAG289, among others listed above.
Ignition Coil
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ASTEMO / HITACHI Fits: 1.4L L4 Turbocharged | IGC3894 | 🇲🇽 MX | Coil on Plug | View on Amazon |
| ASTEMO / HITACHI Fits: 1.4L L4 Turbocharged | IGC3894S | 🇲🇽 MX | Mounting Position: Coil On Plug | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KARLYN / BREMI / STI Fits: 1.4L L4 Turbocharged | 20529 | 🇲🇽 MX | Bremi-STI Direct Ignition Coil Unit | View on Amazon |
| WALKER PRODUCTS Fits: 1.4L L4 Turbocharged | 9212287 | 🇲🇽 MX | Single CoilTerminal Type: Blade | 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.
4 Ignition Coil parts for the 2017 Audi A3 come from 3 brands — ASTEMO / HITACHI, KARLYN / BREMI / STI and WALKER PRODUCTS.
In the Premium grade, ASTEMO / HITACHI supplies 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is ASTEMO / HITACHI IGC3894.
In the Standard Replacement grade, KARLYN / BREMI / STI and WALKER PRODUCTS supply 2 parts: built to original-equipment specification. A representative part number is KARLYN / BREMI / STI 20529.
Listed part numbers: ASTEMO / HITACHI IGC3894, ASTEMO / HITACHI IGC3894S and KARLYN / BREMI / STI 20529, plus the other parts above.
Ignition Lock Cylinder
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 1.4L L4 Turbocharged | 4H1924 | 🇲🇽 MX | Includes Switch | View on Amazon |
This table covers the lock cylinders in the ignition switch.
This group shows a single part: WELLS 4H1924.
Ignition Lock Housing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 1.4L L4 Turbocharged | 926593 | 🇲🇽 MX | View on Amazon | |
| ÜRO PARTS Fits: 1.4L L4 Turbocharged | 1K0905851B | 🇲🇽 MX | Includes Ignition Switch | View on Amazon |
This table covers the Ignition Lock housings.
2 Ignition Lock Housing parts are listed for the 2017 Audi A3, from DORMAN and ÜRO PARTS.
Listed part numbers: DORMAN 926593 and ÜRO PARTS 1K0905851B.
Spark Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Fits: 1.4L L4 Turbocharged | 95463 | 🇲🇽 MX | Laser PlatinumPre-Set Gap: 0.03" | 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.
One part is listed for the 2017 Audi A3 — NGK 95463.
Spark Plug Tube Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.4L L4 Turbocharged | 380150 | 🇲🇽 MX | Inner Diameter [MM]: 21Material: Ethylene Acrylic Elastomer (AEM) | View on Amazon |
| ELRING Fits: 1.4L L4 Turbocharged | 811540 | 🇲🇽 MX | Inner Diameter [MM]: 19Material: Ethylene Acrylic Elastomer (AEM) | View on Amazon |
This table covers the seals at the Spark Plug Tube. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
2 Spark Plug Tube Seal parts for the 2017 Audi A3 come from ELRING.
Listed part numbers: ELRING 380150 and ELRING 811540.
Buying Ignition Parts for a 2017 Audi A3
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Match the engine first. Every ignition 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, 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: Camshaft Position Sensor and Crankshaft Position Sensor .
Frequently Asked Questions
How many ignition parts fit the 2017 Audi A3?
Our catalog currently lists 19 ignition parts for the 2017 Audi A3 across 7 subcategories and 10 brands, covering all 3 engine options (1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged and 2.0L L4 Turbocharged). Each part is matched to the engine(s) it fits.
Do ignition parts differ between 2017 Audi A3 engines?
Yes. Every ignition 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 ignition problems on a 2017 Audi A3?
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 2017 Audi A3?
Notes on this page include pre-set gaps of 0.03" and 0.032". 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 2017 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 2017 Audi A3?
First match the engine — each row shows which engine(s) the part fits. 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 2017 Audi A3
Ignition Parts for Other Audi A3 Years
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