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 Mercedes Benz A1718203326
Vendors's code: A1718203326
Product code: A1718203326
Barcode:
Code 39:
ISBN:
Ask about the product
Administratorem danych osobowych jest Auto24parts. Przetwarzamy je w celu przesłania odpowiedzi na zapytanie. Więcej informacji dotyczących przetwarzania danych osobowych znajduje się w polityce prywatności.
Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
Shipping cost for the selected product
The shipping cost applies to this product (in the selected variant - if applicable). It may change after adding other products to the cart.
Part number A1718203326 - is it the right choice?
Used, working part: comfort control module for Mercedes Benz - numbers A 171 820 33 26 / A1718203326. Before ordering, make sure the numbers match the label of your part.
Comfort control module Mercedes Benz
Looking for a replacement for a faulty module for Mercedes Benz? We offer a used, working comfort control module in good condition.
How this part works
The module electronics are exposed to moisture and contact corrosion, especially when fitted in the scuttle, under the dashboard or near the doors.
When to replace the part
- the central locking or locking signal does not work,
- interior lights or indicators work incorrectly,
- electric windows respond with a delay or not at all,
- communication errors appear on the dashboard.
Before buying a module, check fuses, earth points and connectors - corrosion and damaged wiring cause similar symptoms.
Compatibility with your car
Our range also includes other parts for this model with different numbers. Choose by the number on the label, not by the model alone.
Numbers to compare
- A 171 820 33 26 / A1718203326 - Mercedes-Benz number (OEM)
Which car it is for
- Mercedes Benz - model
Buyers' questions
| What if I cannot see my number in the description? |
|---|
| Write to us and give the number from your part. We will check whether we have it in stock, also in another listing. |
| Is coding needed after replacement? |
| It depends on the make, model and version. Before buying, check whether your car needs adaptation or coding after the replacement. |
| Can a part with a different number fit as well? |
| Sometimes it can, but we do not assume that listings are interchangeable. Compare all numbers with the label on your part or ask us. |
Any doubts? Send a photo of your part to contact@auto24parts.com - we will check it for you.