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.
Comfort control module Smart A4515400850 5WK45148AG
Vendors's code: A4515400850
Product code: A4515400850
Barcode:
Code 39:
ISBN:
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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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Comfort control module for Smart - what to check before buying?
Used, working part: comfort control module for Smart - numbers A4515400850; 5WK45148AG. Before ordering, check the numbers on the label of the part removed from your car.
Comfort control module Smart
This module (comfort control module) is intended for: Smart. This is a used, working part in good technical condition.
Matching by numbers
For this model we offer several parts that differ in their numbers. The number on the label decides, not the model name alone.
Application according to the listing
- Smart - model
- Siemens - manufacturer
What this part does
The module is not universal - the same name covers different versions depending on equipment, year and the market where the car was sold.
Part numbers to check
- A4515400850 - part number
- 5WK45148AG - manufacturer number (Siemens)
Typical failure symptoms
- communication errors appear on the dashboard,
- the central locking or locking signal does not work,
- electric windows respond with a delay or not at all,
- interior lights or indicators work incorrectly.
Remember that the module may need coding or adaptation after replacement - check this for your model.
Frequently asked questions
| Is the part new? |
|---|
| This is a used, working part in good condition. You will find the warranty period in the product features table. |
| What condition is this part in? |
| This is a used, working part in good condition. You will find the warranty period in the product features table. |
| What does "used, working" mean? |
| The part is used but working. The warranty is stated in the product features. |
Send fitment questions to contact@auto24parts.com - give the model, year and the number from the label.