VW Golf Bora Transmission Control Unit TCU 01M927733JQ | Siemens 5WK33442K02 Genuine OEM
VW Golf Bora Transmission Control Unit TCU 01M927733JQ / Siemens 5WK33442K02 Genuine OEM
The Volkswagen Transmission Control Unit (TCU) 01M927733JQ, manufactured by Siemens under part number 5WK33442K02, is a genuine OEM automatic gearbox control module designed for Volkswagen vehicles equipped with the 01M 4-speed automatic transmission.
The TCU continuously monitors vehicle speed, engine load, throttle position, transmission temperature, and gear selector inputs to determine the optimal shift points. It controls shift solenoids, torque converter lock-up, and overall transmission performance to deliver smooth gear changes and reliable operation.
Volkswagen originally installed 01M927733JQ in various Golf, Bora, Jetta, New Beetle, and related VAG vehicles using the 01M automatic transmission. This part was later superseded by 01M927733LQ in certain markets.
Product Specifications
| Specification | Details |
|---|---|
| Volkswagen Part Number | 01M927733JQ |
| Siemens Part Number | 5WK33442K02 |
| Manufacturer | Siemens |
| Vehicle Manufacturer | Volkswagen |
| Module Type | Transmission Control Unit (TCU) |
| Transmission | 01M 4-Speed Automatic |
| Condition | Genuine OEM Used Unit |
| Testing Status | Fully Tested |
| Warranty | 30 Days |
| Shipping | Worldwide Available |
Compatibility Table
| Make | Model | Chassis | Transmission | Year Range |
|---|---|---|---|---|
| Volkswagen | Golf Mk4 | 1J | 01M 4-Speed Automatic | 1998–2002* |
| Volkswagen | Bora | 1J | 01M 4-Speed Automatic | 1999–2002* |
| Volkswagen | Jetta Mk4 | 1J | 01M 4-Speed Automatic | 1999–2002* |
| Volkswagen | Golf Variant | 1J | 01M 4-Speed Automatic | 1999–2002* |
| Volkswagen | Bora Variant | 1J | 01M 4-Speed Automatic | 1999–2002* |
| Volkswagen | New Beetle | 9C / 1C | 01M 4-Speed Automatic | 1999–2002* |
| Škoda | Octavia Mk1 | 1U | 01M 4-Speed Automatic | Selected Models* |
*Compatibility depends on VIN, engine type, gearbox code, production date, software version, and regional specification. Always verify both part numbers 01M927733JQ and 5WK33442K02 before ordering. Volkswagen parts catalogs list this TCU for numerous Golf, Bora, Jetta, New Beetle, and Octavia models equipped with the 01M automatic transmission.
What Does the Transmission Control Unit Do?
The TCU manages every major transmission function, including:
- Automatic gear shifting
- Shift solenoid control
- Torque converter lock-up
- Gear selection logic
- Line pressure regulation
- Transmission temperature monitoring
- Vehicle speed monitoring
- Communication with the Engine Control Unit (ECU)
- Diagnostic fault monitoring
- Transmission protection strategies
A properly functioning TCU ensures smooth shifting, improved fuel economy, and long transmission life.
Common Symptoms of a Faulty TCU
A failing Transmission Control Unit may cause:
- Hard or delayed gear shifts
- Transmission stuck in limp mode
- Gear slipping
- Failure to shift into certain gears
- Check Engine or Transmission warning light
- Communication faults during diagnostics
- No communication with the TCU
- Torque converter lock-up issues
- Harsh engagement into Drive or Reverse
- Solenoid-related fault codes
Repair specialists report that water intrusion and internal electronic failure are common causes of failure for Siemens 5WK33442K02 transmission control units.
Why Buy from Automan Spare Parts?
Automan Spare Parts specializes in genuine OEM automotive electronic modules sourced from tested donor vehicles.
Benefits of Buying From Us
- Genuine OEM Volkswagen Parts
- Fully Tested Before Dispatch
- Worldwide Express Shipping
- Competitive Prices
- Secure Protective Packaging
- Fast Order Processing
- Expert Compatibility Assistance
- 30-Day Warranty
We stock thousands of OEM electronic modules, including ECUs, TCMs, BCMs, ABS modules, instrument clusters, body control modules, navigation units, amplifiers, hybrid controllers, and comfort control modules for Volkswagen, Audi, Škoda, SEAT, BMW, Mercedes-Benz, Toyota, Nissan, Honda, and many other manufacturers.
Installation Information
Before installation, please note:
- TCU coding or adaptation may be required.
- Transmission basic settings should be performed after installation.
- Verify the gearbox wiring harness and solenoids before replacing the TCU.
- Professional installation is recommended.
- Always match the original OEM part numbers before purchasing.
Correct coding and adaptation help ensure proper communication between the transmission and engine control modules after replacement.
Order VW Golf Bora TCU 01M927733JQ Today
Restore smooth and reliable automatic transmission performance with a Genuine OEM VW Golf Bora Transmission Control Unit TCU 01M927733JQ / Siemens 5WK33442K02 from Automan Spare Parts.
If you're unsure about compatibility, simply send us your VIN number or clear photos of your existing TCU label, and our technical team will verify the correct replacement before you place your order.
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