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 Volkswagen Golf VI Golf Plus Passat VDO A2C53369978 03L128063K
Vendors's code: 03L128063K
Product code: A2C53369978
Barcode:
Code 39:
ISBN:
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Does the VDO A2C53369978 throttle body fit your car?
This is a used, working VDO throttle body with part numbers A2C53369978 and 03L128063K, for: Volkswagen Golf VI, Golf Plus, Passat, Tiguan, Touran, Sharan, Caddy, Polo (engines: 2.0 TDI), 2010. To confirm the fit, compare the number with the label on the throttle body in your car.
Throttle Body VDO A2C53369978 03L128063K – Volkswagen Golf VI, Golf Plus, Passat, Tiguan
In a diesel engine the A2C53369978 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: Volkswagen Golf VI, Golf Plus, Passat, Tiguan, Touran, Sharan, Caddy, Polo; engines: 2.0 TDI; production years: 2010.
Part numbers to compare
- A2C53369978
- 03L128063K – also printed as 03L 128 063 K
The label on the throttle body fitted to your car should show the number A2C53369978 or 03L128063K. The model name alone (Volkswagen Golf VI, Golf Plus, Passat, Tiguan, Touran, Sharan, Caddy, Polo) is not enough – throttle bodies with other numbers were also fitted to these cars.
Symptoms of a worn or faulty throttle body
Typical symptoms of throttle body problems in Volkswagen cars:
- 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.
Questions and answers
| How do I check that the A2C53369978 throttle body fits my car? |
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| Compare the number A2C53369978 or 03L128063K with the label of the throttle body fitted to your car (Volkswagen Golf VI, Golf Plus, Passat, Tiguan, Touran, Sharan, Caddy, Polo). |
| Which engines does the A2C53369978 throttle body fit? |
| According to the product data, it fits 2.0 TDI engines in: Volkswagen Golf VI, Golf Plus, Passat, Tiguan, Touran, Sharan, Caddy, Polo, 2010. |
| Does the throttle body need to be adapted (relearned) after replacement? |
| In many cars, yes – the engine control unit has to learn the positions of the new throttle body. This is done with a diagnostic tool or according to the vehicle manufacturer's procedure. |
| 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. |
Not sure if this throttle body fits your car? Send us the number from the label on your part and we will check compatibility before shipping.