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 Seat 5WK4791 1L0959800
Vendors's code: 5WK4791
Product code: 5WK4791
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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Does number 5WK4791 fit your car?
We sell a used, working part (comfort control module) for Seat with numbers 5WK4791; 1L0 959 800 / 1L0959800. Before buying, compare the numbers with the label on the part in your car.
Comfort control module Seat
In Seat the comfort control module collects signals from switches and distributes them to consumers. We sell a used, working unit in good condition.
Listing details
- Seat - model
- Siemens - manufacturer
Compatibility with your car
Compare number 5WK4791 in full with the number on your part. Different versions were fitted to the same models, so the number decides, not the model alone.
Numbers to compare
- 5WK4791 - manufacturer number (Siemens)
- 1L0 959 800 / 1L0959800 - VAG group number (OEM)
Typical failure symptoms
- electrical faults appear after rain or a car wash,
- the system returns to normal after the battery is disconnected,
- warning lights on the dashboard come on for no reason,
- some functions work only intermittently.
Inspect the module connectors: green or burnt pins cause symptoms similar to faulty electronics.
Function in the car
In many models the module communicates with other control units over the bus, so after replacement it may need coding or matching to the car. In VAG group cars the same model came with different module versions, so it is worth comparing the manufacturer number too.
Questions before buying
| What does "used, working" mean? |
|---|
| The part is used but working. The warranty is stated in the product features. |
| Do you also sell connectors or wiring? |
| This listing covers only the part described in the title. You will find other items in the remaining shop categories, or ask us about availability. |
| What does "used, working" mean? |
| This is a used, working part in good condition. You will find the warranty period in the product features table. |
Send a photo of your part or its number to contact@auto24parts.com and we will confirm whether this listing fits.