OEM Throttle Body Assembly for 2014-2024 BMW & Mini

What to Look For When Buying

• Compatibility: Ensure the throttle body is designed for your specific year, make, and model.
• Condition: Consider the condition of the part, especially if buying used.
• Warranty: Check if the part comes with a warranty.
• Reputation: Buy from a reputable seller or supplier.

Quality Indicators

• Smooth Operation: The throttle plate should move smoothly and freely.
• Cleanliness: The throttle body should be clean and free of excessive carbon buildup.
• Electrical Connections: The electrical connectors should be in good condition.
• Proper Sealing: Check for any signs of leaks or damage to the seals.

What's Typically Included

• Throttle Body Assembly: The main throttle body unit.
• Throttle Position Sensor (TPS): Sometimes included, but may need to be purchased separately.
• Gasket: A new gasket is often included for installation.
• Mounting Hardware: Sometimes includes bolts or screws.

Difficulty Level and Estimated Time

• Difficulty: Intermediate
• Estimated Time: 1-2 hours

Special Tools Needed

• Socket Set: For removing and installing bolts.
• Screwdrivers: For various fasteners.
• Throttle Body Cleaner: For cleaning the throttle body.
• OBD-II Scanner: For clearing trouble codes.
• Torque Wrench: For tightening bolts to the correct specifications.

Critical Steps and Tips

1. Disconnect the Battery: Always disconnect the negative battery cable before working on electrical components.
2. Remove the Air Intake: Disconnect the air intake hose from the throttle body.
3. Disconnect Electrical Connectors: Carefully disconnect all electrical connectors from the throttle body.
4. Remove the Throttle Body: Unbolt the throttle body from the intake manifold.
5. Install the New Throttle Body: Install the new throttle body with a new gasket.
6. Reconnect Everything: Reconnect the electrical connectors and air intake hose.
7. Reconnect the Battery: Reconnect the negative battery cable.
8. Clear Trouble Codes: Use an OBD-II scanner to clear any trouble codes.

DIY or Professional Installation?

• DIY is possible for mechanically inclined individuals. However, professional installation is recommended if you are not comfortable working on your car's engine.

Compare: Used OEM, Refurbished OEM, New Aftermarket

Used OEM

Used OEM throttle bodies offer the best value. These are genuine factory parts that have been tested and inspected to ensure they are in good working condition. They are available at significantly lower prices than new parts.

Refurbished OEM

Refurbished OEM throttle bodies are factory parts that have been professionally restored. They often include new components and are thoroughly tested. This option offers a balance of quality and price.

New Aftermarket

New aftermarket throttle bodies are brand new parts manufactured by third-party companies. These parts are built to meet or exceed OE specifications.

Parts Commonly Replaced or Checked

• Throttle Position Sensor (TPS): Often replaced along with the throttle body.
• Intake Manifold Gasket: Should be replaced when removing the intake manifold.
• Air Filter: A clean air filter ensures proper airflow.
• Mass Air Flow (MAF) Sensor: Clean or replace if needed.
• Idle Air Control (IAC) Valve: (If applicable) Clean or replace if needed.

Preventing Repeat Failures

Replacing related parts can prevent repeat failures by addressing underlying issues that may have contributed to the original problem. For example, a faulty TPS can damage the throttle body motor. Replacing both at the same time ensures that the entire system is functioning properly. Cleaning the MAF sensor and replacing the air filter ensures clean air flow.

How Long This Part Normally Lasts

• A throttle body assembly can last 75,000 to 150,000 miles or more under normal conditions.

Factors That Affect Longevity

• Driving Conditions: Frequent stop-and-go driving can shorten the lifespan.
• Maintenance: Regular cleaning can extend the lifespan.
• Air Filter Condition: A dirty air filter can allow contaminants to enter the throttle body.
• Fuel Quality: Poor fuel quality can lead to carbon buildup.
• Engine Condition: An engine with excessive blow-by can cause oil to contaminate the throttle body.

Budget vs Mid-Range vs Premium Options

• Used OEM: $50 - $150
• Refurbished OEM: $100 - $250
• New Aftermarket: $150 - $350

Labor Cost Considerations

• Professional installation can cost $100 - $300, depending on the shop and location.

Total Job Cost Estimates

• DIY: $50 - $350 (depending on the part chosen)
• Professional Installation: $150 - $650 (depending on the part chosen and labor rate)

Known Issues

• Some models are prone to carbon buildup in the throttle body, leading to rough idling and poor performance.
• Some vehicles have had reported issues with the throttle position sensor causing intermittent stalling.

TSBs or Common Complaints

• Check for any Technical Service Bulletins (TSBs) related to the throttle body on your specific vehicle model. Online forums and repair databases can provide information on common complaints and solutions.

How to Confirm Proper Operation

• Start the Engine: The engine should start smoothly and idle properly.
• Check for Trouble Codes: Use an OBD-II scanner to ensure there are no new trouble codes.
• Test Acceleration: The car should accelerate smoothly without hesitation.
• Monitor Idle Speed: The idle speed should be within the specified range.

What to Look/Listen For

• Smooth Idle: The engine should idle smoothly without any rough spots.
• Responsive Acceleration: The engine should respond quickly and smoothly when you press the accelerator.
• No Hesitation: There should be no hesitation or stumbling during acceleration.
• No Unusual Noises: Listen for any unusual noises coming from the engine.

Q: How often should I clean my throttle body?
A: It's generally recommended to clean your throttle body every 30,000 to 50,000 miles, or more frequently if you notice symptoms like rough idling.

Q: Can a bad throttle body cause my car to stall?
A: Yes, a faulty throttle body can cause your car to stall, especially at idle.

Q: Is it difficult to replace a throttle body myself?
A: Replacing a throttle body is a moderately difficult task that can be done by a mechanically inclined person. However, professional installation is recommended if you are not comfortable working on your car's engine.

Q: What happens if I don't replace a failing throttle body?
A: Ignoring a failing throttle body can lead to poor engine performance, decreased fuel economy, and potential damage to other engine components.

Q: Will a new throttle body improve my car's gas mileage?
A: If your old throttle body was dirty or malfunctioning, replacing it with a new one can improve your car's gas mileage by restoring proper airflow to the engine.

OEM Part Numbers:

• BMW: 13547604918, 13547604919, 13547619008, 13548624189
• VDO: A2C8022150080

Fits Years: 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024