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 Audi Volkswagen Seat 1.9 2.0 TDI Siemens A2C53085612 03G128063A
Vendors's code: 03G128063A
Product code: A2C53085612
Barcode:
Code 39:
ISBN:
€121.95
Price
€121.95
€150.00
Price
€150.00
Ask about the product
Throttle Body Audi Volkswagen Seat 1.9 2.0 TDI Siemens A2C53085612 03G128063A
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How can you check whether the A2C53085612 throttle body fits your car?
This is a used, working Siemens throttle body with part numbers A2C53085612 and 03G128063A, for: Audi, Volkswagen, Seat (engines: 1.9 / 2.0 TDI), 2006. Before ordering, compare the number with the label on the throttle body fitted to your car.
Throttle Body Siemens A2C53085612 03G128063A – Audi, Volkswagen, Seat
In a diesel engine the A2C53085612 throttle body does not control power – it closes the intake when the engine is switched off to reduce shaking, and in many engines it also assists exhaust gas recirculation (EGR) control. According to the product data, it fits: Audi, Volkswagen, Seat; engines: 1.9 / 2.0 TDI; production years: 2006.
Part numbers to compare
- A2C53085612
- 03G128063A – also printed as 03G 128 063 A
Check whether the throttle body in your car carries the number A2C53085612 or 03G128063A. The make alone (Audi, Volkswagen, Seat) is not enough to choose the part – throttle bodies with different numbers were fitted to cars of this make.
Common throttle body faults
When the throttle body in a Audi, Volkswagen or Seat starts to fail, the most common signs are:
- soot from the EGR system on the flap – sticking flap, fault codes stored in the engine control unit,
- failed motor or position sensor – engine warning light, limp mode,
- flap not closing fully – the engine may shake when switched off.
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.
Frequently asked questions
| How do I check that the A2C53085612 throttle body fits my car? |
|---|
| Compare the number A2C53085612 or 03G128063A with the label of the throttle body fitted to your car (Audi, Volkswagen, Seat). |
| Which engines does the A2C53085612 throttle body fit? |
| According to the product data, it fits 1.9 / 2.0 TDI engines in: Audi, Volkswagen, Seat, 2006. |
| 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 part in good working condition. The warranty period is shown 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.
