This page lists 32 electrical connector parts for the 2020 Audi A3, across 19 part types, covering both the 1.4L L4 Turbocharged and the 2.0L L4 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
On the 2020 Audi A3, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. 13 parts of the 32 listed are Repair Harness (6 parts), ABS Wheel Speed Sensor Connector (5 parts) and Camshaft Position Sensor Connector (2 parts). The other 16 part types cover the remaining 19 parts.
The 2020 Audi A3 was sold with both the 1.4L L4 Turbocharged and the 2.0L L4 Turbocharged. 18 parts fit every engine; the other 14 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2020 Audi A3 electrical connector parts are STANDARD MOTOR PRODUCTS (22 parts), VEMO (6 parts) and HOLSTEIN (2 parts), plus 2 more brands.
2 parts on this 2020 Audi A3 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including STANDARD MOTOR PRODUCTS S3138 (ABS Wheel Speed Sensor Connector) and VEMO V10830080 (Repair Harness). Click any part number to see every vehicle that part fits.
A/C Compressor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S2906 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
This table covers the harness connectors at the A/C Compressor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2020 Audi A3 — STANDARD MOTOR PRODUCTS S2906.
ABS Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S3068 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangular | View on Amazon |
This table covers the harness connectors at the ABS Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S3068.
ABS Wheel Speed Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 2020 A3 engines | S3138 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Terminal Gender: FemaleTerminal Type: Blade | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | ALH252 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Right | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | ALH253 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Left | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | ALH215 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front RightFWD | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | ALH220 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftFWD | View on Amazon |
This table covers the harness connectors at each ABS wheel-speed sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
STANDARD MOTOR PRODUCTS supplies the 5 ABS Wheel Speed Sensor Connector parts for the 2020 Audi A3. STANDARD MOTOR PRODUCTS S3138 carries the "Popular" badge. 1 part fits every engine; the other 4 are engine-specific.
This group includes STANDARD MOTOR PRODUCTS S3138, STANDARD MOTOR PRODUCTS ALH252 and STANDARD MOTOR PRODUCTS ALH253 and the remaining parts above.
Accessory Power Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S3068 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangular | View on Amazon |
This table covers the harness connectors at the Accessory Power Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2020 Audi A3 — STANDARD MOTOR PRODUCTS S3068.
Air Intake / Charge Temperature Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S2807 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Intake Air | View on Amazon |
This table covers the harness connectors at the Air Intake / Charge Temperature Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S2807.
Camshaft Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: all 2020 A3 engines | 2HAR0060 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A3 Base Model | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S2316 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalNumber of Splice Connectors Included: 3 | View on Amazon |
This table covers the harness connectors at the Camshaft Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Camshaft Position Sensor Connector parts are listed for the 2020 Audi A3, from HOLSTEIN and STANDARD MOTOR PRODUCTS. All of them fit every engine offered in the 2020 A3.
Part numbers include HOLSTEIN 2HAR0060 and STANDARD MOTOR PRODUCTS S2316.
Crankshaft Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | S2916 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Crankshaft Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2020 Audi A3 — STANDARD MOTOR PRODUCTS S2916.
Fuel Pump / Circuit Opening Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S3068 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangular | View on Amazon |
This table covers the harness connectors at the Fuel Pump / Circuit Opening Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S3068.
Fuel Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | S2879 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Pressure | View on Amazon |
This table covers the harness connectors at the Fuel Pump. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2020 Audi A3 — STANDARD MOTOR PRODUCTS S2879.
Fuel Sending Unit Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | S3251 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A3 Base Modelwith 5 Blade Terminals | View on Amazon |
This table covers the harness connectors at the Fuel Sending Unit. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2020 Audi A3 — STANDARD MOTOR PRODUCTS S3251.
Ignition Coil Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | S2869 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: 2.0L L4 Turbocharged | 1P2648 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A3 Base Model | View on Amazon |
This table covers the harness connectors at the Ignition Coil. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Ignition Coil Connector parts are listed for the 2020 Audi A3, from STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS S2869 and WELLS 1P2648.
Parking Aid Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: all 2020 A3 engines | 2HAR0060 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S2316 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalNumber of Splice Connectors Included: 3 | View on Amazon |
This table covers the harness connectors at the Parking Aid Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Parking Aid Sensor Connector parts are listed for the 2020 Audi A3, from HOLSTEIN and STANDARD MOTOR PRODUCTS. All of them fit every engine offered in the 2020 A3.
This group includes HOLSTEIN 2HAR0060 and STANDARD MOTOR PRODUCTS S2316.
Parking Brake Actuator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S3298 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
This table covers the harness connectors at the Parking Brake Actuator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2020 Audi A3 — STANDARD MOTOR PRODUCTS S3298.
Repair Harness
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Popular Fits: 2.0L L4 Turbocharged | V10830080 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes: Expert Kits | View on Amazon |
| VEMO Fits: all 2020 A3 engines | V10830094 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| VEMO Fits: 1.4L L4 Turbocharged | V10560006 | 🇲🇽 MX | View on Amazon | |
| VEMO Fits: 2.0L L4 Turbocharged | V24830035 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes: Expert Kits | View on Amazon |
| VEMO Fits: 2.0L L4 Turbocharged | V10830101 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grade: Q+2-Pole, Cable Length 315mm | View on Amazon |
| VEMO Fits: 2.0L L4 Turbocharged | V10830104 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grade: Q+6-Pin, Cable Length 317mm | View on Amazon |
This table covers the Repair harnesses.
VEMO supplies the 6 Repair Harness parts for the 2020 Audi A3. VEMO V10830080 carries the "Popular" badge. 1 part fits every engine; the other 5 are engine-specific.
This group includes VEMO V10830080, VEMO V10830094 and VEMO V10560006 and the remaining parts above.
Starter Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S3235 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A3 Base Model | View on Amazon |
This table covers the harness connectors at the Starter Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2020 Audi A3 — STANDARD MOTOR PRODUCTS S3235.
Temperature Sender / Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S2860 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalGauge: 16 Gauge | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S2906 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | View on Amazon |
This table covers the harness connectors at the Temperature Sender / Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
STANDARD MOTOR PRODUCTS supplies both parts for the 2020 Audi A3. All of them fit every engine offered in the 2020 A3.
Listed part numbers: STANDARD MOTOR PRODUCTS S2860 and STANDARD MOTOR PRODUCTS S2906.
Trailer Wire Converter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CURT Fits: all 2020 A3 engines | 56236 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Function Taillight ConverterConverts 2-Wire/3-Wire/PWM Stop/Turn System To 2-Wire Trailer Light Wiring | View on Amazon |
This table covers the Trailer Wire converters. Typical signs include a sulfur smell, rattling substrate, or an efficiency code. Confirm CARB vs Federal certification in the notes before ordering.
This group shows a single part: CURT 56236.
Washer Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S2279 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A3 Base Model | View on Amazon |
This table covers the harness connectors at the Washer Pump. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2020 Audi A3 — STANDARD MOTOR PRODUCTS S2279.
Washer Pump Relay Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2020 A3 engines | S3068 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangular | View on Amazon |
This table covers the harness connectors at the Washer Pump Relay. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S3068.
Buying Electrical Connector Parts for a 2020 Audi A3
On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.
- Match the engine first. Some electrical connector parts fit every engine; others are 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, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Repair Harness and ABS Wheel Speed Sensor Connector .
Frequently Asked Questions
How many electrical connector parts fit the 2020 Audi A3?
Our catalog currently lists 32 electrical connector parts for the 2020 Audi A3 across 19 subcategories and 5 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 connector parts differ between 2020 Audi A3 engines?
Some do. 18 parts fit every engine; the other 14 are engine-specific. Each row (and the filter at the top) shows which. 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 connector problems on a 2020 Audi A3?
Common symptoms include intermittent faults that move when the harness is wiggled, green corrosion inside a plug, or melted connector housings near heat sources. 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, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
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 2020 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 2020 Audi A3?
First match the engine — each row shows which engine(s) the part fits. Then match the connector by terminal count and keyway, not just appearance — many families look identical but will not lock. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2020 Audi A3
Electrical Connector Parts for Other Audi A3 Years
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