036133062B 036133062N Throttle Body Assembly For VW Audi SEAT Skoda 1.6L 1.8L NA MPI Engines

036133062B 036133062N Throttle Body Assembly For VW Audi SEAT Skoda 1.6L 1.8L NA MPI Engines

Product Attribute Introduction

1. Product Name: Throttle Valve Body / Throttle Body Assembly
2. Core Function: This is a critical actuator in the engine management system (EMS), responsible for precisely controlling the amount of air entering the engine's combustion chambers.
3. Typical Construction & Material:

• Body: Typically made from die-cast aluminum, offering a good balance of lightness and heat dissipation.

• Throttle Valve Plate: A circular plate (butterfly), often made of engineering plastic in later models, mounted on a shaft inside the body.

• Actuator Motor: An integrated DC motor controlled by the Engine Control Unit (ECU) to rotate the valve plate.

• Position Sensor: Integrated dual potentiometers (sensors) that provide real-time feedback on the valve's angle (actual value) to the ECU, creating a closed-loop control system with the ECU's command (target value).

• Electrical Connector: A multi-pin electrical connector for power, ECU control signals, and sensor feedback signals.

• Coolant Passages: Many designs include passages for engine coolant to prevent throttle icing in very cold weather, though not all models have this feature.

Vehicle Compatibility Table

This throttle body is widely used in Volkswagen Group vehicles equipped with 1.6L and 1.8L naturally aspirated multi-point fuel injection (MPI) engines.

Please Note:

1. The most accurate way to confirm compatibility is to check the part number on your old unit or use a professional parts catalog (like ETKA) with your 17-digit Vehicle Identification Number (VIN).

2. This table covers the primary compatible models but may not be exhaustive. Always double-check compatibility with the seller before purchasing.

Product Purpose and Function

1. Airflow Regulation: Precisely controls the amount of air entering the engine based on the driver's accelerator pedal input (calculated by the ECU) and various engine operating conditions (e.g., cold start, idle, acceleration, deceleration). This is a primary factor for the ECU to calculate fuel injection (air-fuel ratio control).

2. Idle Speed Control: When the accelerator pedal is fully released, the ECU maintains a stable, minimum engine speed by controlling the throttle's minute opening.

3. Torque Management: The ECU can manage engine output torque by limiting the throttle opening (even if the accelerator is pressed deeply) to meet the demands of systems like Traction Control (TCS) or transmission protection.

4. Limp Mode (Fail-Safe): If a fault is detected in the throttle system, the ECU will illuminate a warning light (often EPC or Check Engine light). The throttle will be forced into a fixed default position, severely limiting power but allowing you to drive at low speed to a repair shop.

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