Throttle Body for VW Polo, Golf IV, Audi A2, Seat Ibiza & Skoda Fabia
The 036133062L is an electronic throttle body built for Volkswagen Group 1.2L and 1.4L gasoline engines. It controls the airflow into the intake manifold based on input from the accelerator pedal position sensor — no cable linkage. On VAG engines from this era, a dirty or failing throttle body is one of the most common causes of rough idle and erratic RPM. This unit is a direct bolt-on replacement that matches the original specs for dozens of Audi, Seat, Skoda, and VW models produced between 1997 and 2010.
Vehicle Compatibility
Volkswagen
| Model | Body | Engine | Years |
|---|---|---|---|
| Golf IV / Golf Mk IV (1J1) | Hatchback, Variant (1J5) | 1.4 16V | 1997 – 2006 |
| Bora (1J2) / Bora Wagon (1J6) | Sedan, Wagon | 1.4 16V | 2000 – 2005 |
| Polo (6N2) | Hatchback | 1.4 16V | 1999 – 2001 |
| Polo (9N_) | Hatchback | 1.2 12V, 1.4 16V | 2001 – 2008 |
| Polo Classic / Sedan (6KV2, 9A4) | Sedan | 1.4 16V | 1999 – 2005 |
| Polo Variant (6KV5) | Wagon | 1.4 16V | 1999 – 2001 |
| Lupo (6X1, 6E1) | Hatchback | 1.4 16V | 1998 – 2005 |
| New Beetle (9C1, 1C1) | Hatchback, Convertible (1Y7) | 1.4 | 2001 – 2010 |
| Caddy II (9K9A) | Box / Van | 1.4 16V | 2000 – 2004 |
Audi
| Model | Body | Engine | Years |
|---|---|---|---|
| A2 (8Z0) | Hatchback | 1.4 | 2000 – 2005 |
Seat
| Model | Body | Engine | Years |
|---|---|---|---|
| Ibiza III / Mk III (6K1) | Hatchback | 1.4 16V | 2000 – 2002 |
| Ibiza IV / Mk IV (6L1) | Hatchback | 1.2, 1.4 16V | 2002 – 2007 |
| Cordoba (6K2, 6L2) | Sedan | 1.2, 1.4 16V | 2000 – 2007 |
| Cordoba Vario (6K5) | Wagon | 1.4 16V | 1999 – 2002 |
| Leon (1M1) | Hatchback | 1.4 16V | 1999 – 2006 |
| Toledo II / Mk II (1M2) | Sedan | 1.4 16V | 1999 – 2006 |
| Inca (6K9) | Box / Van | 1.4 16V | 2000 – 2003 |
Skoda
| Model | Body | Engine | Years |
|---|---|---|---|
| Fabia (6Y2) | Hatchback | 1.2, 1.4 16V | 1999 – 2008 |
| Fabia Combi (6Y5) | Wagon | 1.2, 1.4 16V | 2000 – 2007 |
| Fabia Praktik | Box / Van | 1.2 | 2001 – 2007 |
| Fabia Sedan (6Y3) | Sedan | 1.2, 1.4 16V | 1999 – 2007 |
| Octavia (1U2) | Hatchback | 1.4 16V | 2000 – 2010 |
| Octavia Combi (1U5) | Wagon | 1.4 16V | 2000 – 2010 |
Replaces OEM Part Numbers
• 036133062L • 408238321006Z
Engine Code Reference
| Code | Displacement | Power | Common In |
|---|---|---|---|
| AUA | 1.4L (1390 cc) | 55 kW / 75 PS | Polo 6N2, Ibiza III, Cordoba, Lupo, Caddy II |
| BBY | 1.4L (1390 cc) | 55 kW / 75 PS | Ibiza IV, Polo 9N, Lupo, Audi A2 |
| BKY | 1.4L (1390 cc) | 55 kW / 75 PS | Polo 9N, Ibiza IV, Fabia, Polo Sedan |
| BCA | 1.4L (1390 cc) | 55 kW / 75 PS | Golf IV, Bora, Leon, Octavia, New Beetle |
| AZQ | 1.2L (1198 cc) | 47 kW / 64 PS | Polo 9N, Ibiza IV, Cordoba, Fabia |
| BME | 1.2L (1198 cc) | 47 kW / 64 PS | Polo 9N, Ibiza IV, Fabia |
| AKQ | 1.4L (1390 cc) | 55 kW / 75 PS | Golf IV, Polo 6N2, Lupo, Bora |
| AHW | 1.4L (1390 cc) | 55 kW / 75 PS | Golf IV, Bora, Lupo, Polo |
| APE | 1.4L (1390 cc) | 55 kW / 75 PS | Ibiza III, Cordoba, Golf IV, Polo |
| BMD / AWY | 1.2L (1198 cc) | 40 kW / 54 PS | Fabia 1.2, Polo 9N |
When to Replace the Throttle Body
On the VW Group 1.2/1.4 EA111 engine family, the electronic throttle body is a known wear item. The internal gears in the DC motor strip over time, the throttle plate shaft develops play, and carbon buildup around the bore restricts airflow. Here’s what you’ll notice:
- Rough or surging idle — RPM bounces between 500 and 1500 at a stoplight, or the car stalls when you come to a stop
- Check engine light — common codes include P0121 (throttle position performance), P1545 (throttle actuator), and P0220 (throttle position circuit)
- Reduced power / limp mode — the ECU limits throttle opening when it detects a fault, making the car feel sluggish
- Poor cold start — long crank time and hesitation for the first 30 seconds after starting in cold weather
- Unresponsive throttle — you press the pedal and there’s a dead spot before the engine picks up
- Higher fuel consumption — the ECU can’t meter air correctly, so it over-fuels to compensate
Throttle Body Adaptation
After installing the new throttle body, you’ll need to run a throttle adaptation (also called basic setting or TBA) so the ECU learns the new zero and full-throttle positions. On most VAG cars from this era:
- With VCDS or VAG-COM: Engine → Basic Settings → Group 060 (or Group 098 on some models). Run the adaptation and wait until it says “ADP OK”.
- Without a scanner: turn the key to ON (not start), leave it for 30 seconds, turn OFF, wait 10 seconds, then start the engine. Let it idle for 2–3 minutes without touching the gas pedal. This works on most pre-2005 models.
Skip this step and the car will likely idle terribly or throw a code right away.
Frequently Asked Questions
Is this the same as part number 036133062N or 036133062B?
No. Those are different revisions of the same throttle body family. While they look similar externally and share some applications, the internal gearing and connector pinout may differ. Stick with 036133062L or 408238321006Z for the correct fit.
Can I clean my old throttle body instead of replacing it?
Cleaning helps with carbon buildup, but it won’t fix a worn DC motor or a shaft with excess play. If you’re getting P1545 or P0121 after cleaning, the unit is electrically worn out and needs replacement.
Do I need a new gasket?
Yes. The throttle body gasket (VW part 036 133 062 C) should be replaced every time you remove the unit. A leaking gasket lets unmetered air in and causes rough idle.
My Polo 9N has a 1.4 16V engine code BBY — will this fit?
Yes. The 036133062L throttle body fits all BBY engines in the Polo 9N, Polo Sedan, and Seat Ibiza IV.
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