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.
CD MP3 radio Audi A4 A5 8T1035110C CXCA1796G
Vendors's code: 8T1035110C
Product code: 20DC-587A8
Barcode:
Code 39:
ISBN:
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Radio with number 8T1035110C - is it the right part?
This is a used, working part: CD MP3 radio for the Audi A4 A5 - numbers 8T1 035 110 C / 8T1035110C; CX-CA1796G / CXCA1796G. Before buying, compare the numbers with the label on the unit in your car.
CD MP3 radio Audi A4 A5
The part in this listing (CD MP3 radio) comes from a Audi A4 A5 (2008). It is a used unit, working and in good condition.
Numbers to compare
- 8T1 035 110 C / 8T1035110C - VAG number (OEM)
- CX-CA1796G / CXCA1796G - additional part number
Fitment
Compare the number 8T1 035 110 C in full with the number on your unit. Different versions of radios were fitted to the same models, so the number decides, not the model and year alone.
Signs of a faulty unit
- no sound from the speakers although they work,
- volume control is uneven or jumps,
- the auxiliary input or the player does not work,
- the radio does not respond to the steering wheel buttons.
First rule out the fuse, the power cables and the speakers, because their faults cause symptoms similar to a damaged radio.
Questions and answers
| Does the radio need a code after fitting? |
|---|
| In some models yes - after the power has been disconnected the radio may ask for a security code. It depends on the make and the version of the unit. |
| Which number matters most for fitment? |
| It is best to compare all the numbers on the label, above all the one marked as the manufacturer or OEM number. |
| What does "used, working" mean? |
| We sell it as a used part, working and in good condition, with a 6-month warranty. |
Not sure? Write to contact@auto24parts.com and we will help you choose the right radio for your car.