02E DQ250 Genuine OEM Mechatronic Unit 02E927770AT

The 02E927770AT DQ250 Mechatronic is a genuine OEM complete mechatronic control unit designed for selected Volkswagen Group 02E DQ250 six-speed DSG transmissions. The assembly combines the transmission control electronics with the hydraulic valve body system, allowing the transmission to control clutch operation, hydraulic pressure and gear selection. Reference 02E927770AT, also written as 02E 927 770 AT, is used to identify this specific DQ250 electronic/mechatronic configuration.

02E927770AT DQ250 Mechatronic Identification

The 02E927770AT DQ250 Mechatronic belongs to the DQ250 family of wet dual-clutch six-speed DSG transmissions. Specialist listings identify 02E927770AT as a DQ250 control module and complete mechatronic reference used in selected Volkswagen, Audi, SEAT and Škoda applications.

The AT suffix is important because DQ250 electronic units were produced with many different hardware suffixes, including AD, AE, AJ, AL, AM, AQ, AS and AT. These different versions should not automatically be treated as directly interchangeable.

The primary identification for this product is:

• VAG Reference: 02E927770AT
• Formatted Reference: 02E 927 770 AT
• Transmission: 02E / DQ250
• Type: Complete Mechatronic Unit
• Condition: Genuine OEM

A related complete mechatronic reference 02E325025AT is also listed by specialist repair suppliers for this configuration, but compatibility should still be confirmed using the original unit identification.

Complete Electronic and Hydraulic Assembly

Unlike a bare 02E DQ250 TCU Circuit Board, this product is a complete mechatronic assembly containing both the electronic transmission control section and the hydraulic control system.

The TCU processes transmission operating information and sends commands to hydraulic control components. The valve body then directs transmission fluid pressure to the appropriate clutch and gear-control circuits.

This combination of electronic and hydraulic control is why a mechatronic unit should not be confused with a standalone TCU, bare PCB or valve body alone.

For professional workshops, replacing the complete assembly can be appropriate when diagnosis identifies faults affecting both the electronic and hydraulic sections.

DQ250 Hydraulic and Solenoid Control

The DQ250 mechatronic system controls transmission operation through multiple shift and pressure-control solenoids. Technical information for the 02E identifies shift valves including N88–N92 together with pressure-control valves such as N215–N218, N233 and N371.

When diagnosing transmission problems, technicians should inspect the complete Valve Body system and related Solenoid components before determining whether the entire mechatronic unit requires replacement.

Hydraulic contamination, valve wear, pressure loss and electronic faults can sometimes create similar transmission symptoms, making professional diagnosis important.

Programming, Coding and Adaptation

A replacement 02E mechatronic should not automatically be regarded as plug-and-play.

Different DQ250 hardware generations can contain different electronic and software configurations. Specialist cloning information shows that hardware generations such as AJ and AL should not simply be cloned directly across different versions without the correct programming procedure.

Depending on the vehicle, replacement may require software programming, coding, basic settings, adaptation or data transfer from the original control module.

The original 02E927770AT number should therefore be compared before installation, and professional DSG diagnostic equipment should be used when commissioning the replacement unit.

Selected DQ250 Vehicle Applications

The DQ250 02E six-speed DSG transmission has been used across many Volkswagen Group vehicles. Public application listings for 02E927770AT include selected Volkswagen Golf, GTI, Jetta, Passat, EOS and Caddy applications, while other DQ250 versions are used across Audi, SEAT and Škoda vehicles.

Vehicle model alone should not be used as the final compatibility check because hardware and software configurations can vary by model year, engine, drivetrain and transmission version.

Customers should preferably provide the original mechatronic reference, transmission identification and vehicle information before ordering.

Professional DSG Transmission Repair

During a complete DQ250 transmission repair, the mechatronic should be evaluated together with the wet clutch system, hydraulic circuits and internal mechanical components.

If clutch wear is present, related replacement parts can be sourced through our Friction Kit product range. Electronic specialists performing board-level repair can also use the 02E DQ250 TCU Circuit Board when the complete mechatronic does not require replacement.

This allows workshops to select either component-level repair or complete mechatronic replacement according to the condition of the original unit.

Genuine OEM DQ250 Mechatronic Supply

The 02E927770AT DQ250 Mechatronic is suitable for professional transmission workshops, DSG specialists, rebuilders and wholesale transmission parts distributors requiring an original-specification mechatronic assembly.

Kaisheng Transmission supplies mechatronic units, TCU components, valve body parts, solenoids, friction components and other automatic and dual-clutch transmission repair products for professional customers worldwide.

Before shipment, customers are encouraged to provide clear photographs of the original unit and its part number. Correct identification helps ensure that the required hardware version is supplied and reduces compatibility problems during programming and installation.