OEM Part Numbers

Technical Specifications

Product Description

This is a genuine used original Temic mechatronics unit with part number 02E927770AQ for the 6-speed DSG DQ250 (02E) automatic transmission. The mechatronics assembly integrates the hydraulic control block, valve body, pressure sensors, gear-position sensors and solenoid valves into a single unit that manages all gear selection and hydraulic pressure regulation within the DQ250 gearbox.

What This Mechatronics Unit Does

• Controls hydraulic pressure for clutch engagement and gear shifting
• Manages solenoid valves responsible for selecting individual gears
• Monitors input and output shaft speeds for precise shift timing
• Regulates dual-clutch operation for smooth, fast gear transitions
• Communicates with the engine control unit and ABS/ESP modules
• Stores and executes learned adaptation values for optimised shift quality

Vehicle Compatibility

The 02E927770AQ is designed for vehicles equipped with the DQ250 (02E) 6-speed DSG transmission. Always verify the part number on your existing unit:

Volkswagen

Škoda

Audi

SEAT

Common Diagnostic Fault Codes

A faulty DQ250 mechatronics unit commonly triggers one or more of the following fault codes:

Installation & Calibration

Installation Steps

• Drain DSG transmission fluid before removing the mechatronics unit
• Disconnect all electrical connectors and wiring harness from the unit
• Remove the mechatronics assembly from the transmission housing
• Clean the mating surfaces before fitting the replacement unit
• Install the new mechatronics and secure all fasteners to correct torque
• Reconnect all electrical connectors and refill with fresh DSG fluid
• Connect a VAG-compatible diagnostic tool and perform adaptation reset
• Carry out a full test drive and verify smooth gear changes across all gears

Why DSG Mechatronics Units Fail

1. Contaminated DSG Fluid

Old or degraded DSG fluid is the most common cause of mechatronics failure. Contaminated fluid blocks the fine hydraulic passages and solenoid valves inside the unit, leading to erratic shifting, slipping and complete transmission failure.

2. Solenoid Valve Wear

Individual solenoid valves within the mechatronics control hydraulic pressure for each gear. Over time these valves wear internally, causing pressure leaks that result in harsh gear changes, incorrect gear selection or loss of specific gears.

3. Electrical Connector Corrosion

Moisture ingress at the mechatronics wiring connector causes pin corrosion and intermittent electrical faults. This often presents as random fault codes, jerky shifts or the transmission entering emergency (limp) mode.

4. Neglected Service Intervals

The DQ250 requires DSG fluid and filter changes at regular intervals. Skipping these services accelerates wear across all internal components, including the mechatronics unit, solenoid valves and clutch packs.

Quality Assurance & Warranty

12-Month Warranty: This used mechatronics unit has been fully tested and is covered by a 12-month warranty against functional defects under normal operating conditions.

Warranty Coverage Includes:

• Electronic control unit malfunctions
• Solenoid valve electrical faults
• Hydraulic pressure regulation failures
• Sensor signal faults within the mechatronics assembly

Warranty Exclusions: Damage resulting from incorrect installation, failure to perform adaptation reset, use of incorrect DSG fluid, incompatible vehicle fitment, or physical damage during handling.

Questions or Need Help?

Our technical team is ready to assist with compatibility checks, VIN software upload, installation guidance and adaptation support.

Important Purchase Information