VW Skoda Audi Electronic Throttle Body OE 038128063M 038128063G 038128063L 038128063Q 38128063 38128063Q MN9800166

VW Skoda Audi Electronic Throttle Body OE 038128063M 038128063G 038128063L 038128063Q 38128063 38128063Q MN9800166 

1. Vehicle Compatibility

Primarily used in Volkswagen Group vehicles equipped with EA888 series engines such as 1.8T and 2.0T.

Note: Always verify the part number using the vehicle's VIN before replacement to ensure compatibility.

2. Product Introduction & Technical Principle

This is an Electronic Throttle Body (ETB), serving as the core actuator for the engine's "Drive-by-Wire" technology.

Working Principle:

1. Command Reception: The ECU calculates the optimal throttle opening based on the accelerator pedal signal and vehicle status.

2. Motor Drive: The ECU sends commands to drive the miniature motor inside the throttle body.

3. Gear Control: The motor controls the valve plate's rotation angle through precision gears, accurately regulating airflow.

4. Feedback Adjustment: Dual sensors on the valve shaft provide real-time position feedback to the ECU, forming a closed-loop control to ensure precise opening.

3. Primary Functions

• Core Function: Precisely controls engine airflow, determining power output.

• Idle Speed Control: Maintains stable engine idle.

• Feature Support: Key actuator for functions like cruise control and traction control (ASR/ESP).

4. Production Process

Utilizes precision manufacturing processes:

1. Aluminum alloy die-cast housing.

2. CNC high-precision machining of critical parts.

3. Motor and sensor assembly in a cleanroom environment.

4. Application of specialized long-life grease to the gear set.

5. Each unit undergoes rigorous testing and calibration before leaving the factory.

5. Operating Procedures (Replacement & Adaptation)

1. Removal: Disconnect power → Remove intake hose → Unplug connector → Remove bolts → Remove old unit.

2. Installation: Clean mating surface → Install new unit (replace seal) → Tighten bolts to specified torque → Reconnect connector and hose → Restore power.

3. Critical Step - Adaptation: After installation, must perform "Throttle Body Basic Settings" using a professional diagnostic tool to allow the ECU to learn the new throttle's parameters. Failure to do so may cause irregular idle, poor acceleration, etc.