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 Opel Astra H Zafira B Delphi 055352858 25362123 RME50201
Vendors's code: RME50201
Product code: 055352858
Barcode:
Code 39:
ISBN:
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Throttle Body Opel Astra H Zafira B Delphi 055352858 25362123 RME50201
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Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
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How can you check whether the 055352858 throttle body fits your car?
This is a used, working Delphi throttle body with part numbers 055352858, 25362123 and RME50201, for: Opel Astra H, Zafira B (engines: 1.6 Z16XEP). To confirm the fit, compare the number with the label on the throttle body in your car.
Throttle Body Delphi 055352858 25362123 – Opel Astra H, Zafira B
The job of the 055352858 throttle body is to meter the air entering a petrol engine. In electronic throttle bodies, the throttle plate position is set by the engine control unit based on the accelerator pedal signal. According to the product data, it fits: Opel Astra H, Zafira B; engines: 1.6 Z16XEP.
Choosing by part number
- 055352858
- 25362123
- RME50201 – also printed as RME 50-201
The label on the throttle body fitted to your car should show the number 055352858, 25362123 or RME50201. Knowing only the model (Opel Astra H, Zafira B) is not enough to choose the part: different throttle body versions were used in the same cars.
Common throttle body faults
Typical symptoms of throttle body problems in Opel 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.
Frequently asked questions
| How do I check that the 055352858 throttle body fits my car? |
|---|
| Compare the number 055352858, 25362123 or RME50201 with the label of the throttle body fitted to your car (Opel Astra H, Zafira B). |
| Which engines does the 055352858 throttle body fit? |
| According to the product data, it fits 1.6 Z16XEP engines in: Opel Astra H, Zafira B. |
| 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. |
Unsure about compatibility? Send us the number from your throttle body label and we will check whether this part fits.
