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.
Light control module Audi A4 S4 8E0907279E
Vendors's code: 8E0907279E
Product code: 8E0907279E
Barcode:
Code 39:
ISBN:
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Part number 8E0907279E - is it the right choice?
Used, working part: light control module for Audi A4 S4 - numbers 8E0 907 279 E / 8E0907279E. Before buying, compare the numbers with the label on the part in your car.
Light control module Audi A4 S4
The light control module controls the lights according to the car's equipment. The unit offered applies to: Audi A4 S4 (2002-2003); it is used, working and in good condition.
Numbers to compare
- 8E0 907 279 E / 8E0907279E - VAG group number (OEM)
Application according to the listing
- Audi A4 S4 - model
- 2002-2003 - year
What this part does
A lighting failure does not always mean a faulty module - blown bulbs, relays and bad wiring behave the same way.
Fitment
Compare number 8E0 907 279 E in full with the number on your part. Different versions were fitted to the same models, so the number decides, not the model and year alone.
Symptoms of a fault
- the lights do not switch on or go out while driving,
- a lighting fault message appears on the dashboard,
- the headlights do not adjust their range,
- the tester reports a light module fault.
It is worth reading the fault codes first, because the fault may concern the lamp rather than the module.
Questions and answers
| Is the part new? |
|---|
| It is a used, working part in good condition. Warranty details are listed in the offer features. |
| 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. |
| Where can I find the number on the part? |
| The number is on the label or housing, usually visible after removing the part from the car. If you cannot read it, send us a photo. |
Send a photo of your part or its number to contact@auto24parts.com and we will confirm whether this listing fits.