A faulty transmission control module (TCM) most often causes limp mode with the gearbox stuck in one gear, harsh jolts when you select D or R, erratic gear changes, flashing PRND letters and a gearbox or engine warning light. However, the same symptoms are often caused by a low gearbox oil level, a weak battery, a poor earth or a faulty sensor. To test a transmission control module, start by checking the battery and reading the fault codes with a diagnostic tool that can talk to the gearbox control unit, then check the power supply, the connector, the oil and the live data. Below we explain the symptoms, the diagnostic steps and what the most common fault codes mean.
Throttle Body Seat Cordoba II (6L) Ibiza III/IV (6L) Skoda Fabia I (6Y) Roomster (5J) Siemens VDO A2C53030790 03C133062B
Vendors's code: 03C133062B
Product code: A2C53030790
Barcode:
Code 39:
ISBN:
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Throttle Body Seat Cordoba II (6L) Ibiza III/IV (6L) Skoda Fabia I (6Y) Roomster (5J) Siemens VDO A2C53030790 03C133062B
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How can you check whether the A2C53030790 throttle body fits your car?
This is a used, working Siemens VDO throttle body with part numbers A2C53030790 and 03C133062B, for: Seat Cordoba II (6L), Ibiza III/IV (6L), Skoda Fabia I (6Y), Roomster (5J), Volkswagen Fox (5Z), Polo IV (9N) (engines: 1.2 12V AZQ/BME/BXV / 1.4 16V AUA/BBY/BKY/BKR). To confirm the fit, compare the number with the label on the throttle body in your car.
Throttle Body Siemens VDO A2C53030790 03C133062B – Seat Cordoba II (6L), Ibiza III/IV (6L), Skoda Fabia I (6Y), Roomster (5J)
The job of the A2C53030790 throttle body is to meter the air entering a petrol engine. When the throttle is electronically controlled, the opening angle is set by the engine control unit from the accelerator pedal position. According to the product data, it fits: Seat Cordoba II (6L), Ibiza III/IV (6L), Skoda Fabia I (6Y), Roomster (5J), Volkswagen Fox (5Z), Polo IV (9N); engines: 1.2 12V AZQ/BME/BXV / 1.4 16V AUA/BBY/BKY/BKR.
Choosing by part number
- A2C53030790
- 03C133062B – also printed as 03C 133 062 B
The label on the throttle body fitted to your car should show the number A2C53030790 or 03C133062B. Knowing only the model (Seat Cordoba II (6L), Ibiza III/IV (6L), Skoda Fabia I (6Y), Roomster (5J), Volkswagen Fox (5Z), Polo IV (9N)) is not enough to choose the part: different throttle body versions were used in the same cars.
Symptoms of a worn or faulty throttle body
Typical symptoms of throttle body problems in Seat, Skoda or Volkswagen cars:
- worn track in the throttle position sensor – fluctuating revs, jerking on light throttle,
- carbon deposits on the throttle plate – rough idle, engine stalling when coming to a stop,
- in electronic throttle bodies: failed motor or gear drive – limp mode, reduced power, engine warning light.
When measurements or fault codes confirm the problem and cleaning has no effect, the throttle body is replaced with one carrying the same number. After replacement, many cars need an adaptation in the engine control unit.
Questions and answers
| How do I check that the A2C53030790 throttle body fits my car? |
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| Compare the number A2C53030790 or 03C133062B with the label of the throttle body fitted to your car (Seat Cordoba II (6L), Ibiza III/IV (6L), Skoda Fabia I (6Y), Roomster (5J), Volkswagen Fox (5Z), Polo IV (9N)). |
| Which engines does the A2C53030790 throttle body fit? |
| According to the product data, it fits 1.2 12V AZQ/BME/BXV / 1.4 16V AUA/BBY/BKY/BKR engines in: Seat Cordoba II (6L), Ibiza III/IV (6L), Skoda Fabia I (6Y), Roomster (5J), Volkswagen Fox (5Z), Polo IV (9N). |
| Does the throttle body need to be adapted (relearned) after replacement? |
| In many cars, yes: after fitting, the engine control unit learns the end positions of the throttle. This is done with a diagnostic tool or by following the procedure described by the car manufacturer. |
| What condition is this throttle body in? |
| It is a used, working unit in good condition. The warranty is listed in the product specification table. |
Unsure about compatibility? Send us the number from your throttle body label and we will check whether this part fits.
