Temic VL381 is a (virtual) 8 speed multitronic (CVT) Transmission Control Unit mounted in:
- Audi: A4, A5, A6
Technical details
| MCU | Program Flash | Data Flash | External Eeprom |
|---|---|---|---|
| Tricore TC1766 | 1,46MB | – | 8KB |
Available services
VL381 transfer
Allows complete transfer of IMMO data between different TCU families and TCU models. Commonly used during transmission conversions or swaps where the replacement TCU differs from the original unit.
VL381 synchronization
Synchronizes the TCU with the vehicle’s immo master module to restore proper immo operation. Required after TCU replacement, module mismatch or when restoring immo pairing.
Part numbers
All VL381 part numbers are supported for transfer and synchronization services. The list below shows the most common variants:
Notes
- 🔧 Full bench/boot read is required.
- ⚠️ Virtual/partial reads are not supported.
- ✅ Full checksum correction is included.