2009 - 2016 BMW Z4 Intake Manifold Assembly (OEM)

What to Look For When Buying:

• Check for cracks or damage, especially around mounting points
• Inspect the condition of the gaskets and seals
• Ensure all necessary ports and connections are present
• Verify the part is compatible with your specific engine and model year

Quality Indicators:

• Material: Look for durable, heat-resistant plastic or metal construction.
• Sealing Surfaces: Ensure the sealing surfaces are smooth and free of damage.
• Manufacturer Reputation: Consider the reputation of the manufacturer or supplier.

What's Typically Included:

• Intake manifold assembly
• Gaskets and seals (sometimes included, sometimes sold separately)
• DISA valve (if applicable)

Difficulty Level and Estimated Time:

• Difficulty: Intermediate
• Estimated Time: 2-4 hours

Special Tools Needed:

• Socket set
• Wrench set
• Torque wrench
• Screwdrivers
• Possibly a DISA valve removal tool (if applicable)

Critical Steps and Tips:

1. Disconnect the battery before starting.
2. Remove all necessary components to access the intake manifold, such as the air intake, fuel lines, and wiring harnesses.
3. Carefully disconnect all vacuum lines and sensors.
4. Torque the intake manifold bolts to the manufacturer's specifications.
5. Replace any worn or damaged vacuum lines or hoses.
6. Double-check all connections before starting the engine.

DIY or Professional Installation:

• DIY is possible for experienced mechanics. However, due to the complexity of the job and the potential for vacuum leaks, professional installation is recommended for those without experience.

Here's a comparison of your options:

Used OEM: Get a genuine factory part at a great price. These parts are tested and inspected to ensure they work properly.

Refurbished OEM: Factory parts that have been professionally restored. These parts often have new components installed.

New Aftermarket: Brand new parts made by companies other than the original manufacturer. These parts are designed to meet the original equipment specifications.

• Intake manifold gaskets
• DISA valve (if equipped)
• Fuel injectors
• Vacuum lines and hoses
• Throttle body
• Mass airflow (MAF) sensor

Replacing these parts at the same time can prevent repeat failures. For example, if the intake manifold gasket is leaking, it can cause the engine to run lean, which can damage the fuel injectors. Replacing the fuel injectors and the intake manifold gasket at the same time can prevent this from happening. Similarly, a failing DISA valve can damage the intake manifold.

The intake manifold assembly can last for 100,000 miles or more.

Factors that affect longevity:

• Driving conditions (extreme heat or cold)
• Regular maintenance (keeping the engine clean and properly tuned)
• Quality of the part itself

• Used OEM: $100 - $300
• Refurbished OEM: $200 - $400
• New Aftermarket: $150 - $500+

Labor costs for installation can range from $200 to $500, depending on the shop and the complexity of the job.

Total job cost estimates:

• Used OEM: $300 - $800
• Refurbished OEM: $400 - $900
• New Aftermarket: $350 - $1000+

Some BMW models within the 2007-2016 range are known to have issues with the DISA valve failing, which can damage the intake manifold. Carbon buildup can also be a problem, especially in direct-injection engines. Check for any Technical Service Bulletins (TSBs) related to the intake manifold on your specific model. Some owners have reported rough idling and misfires related to vacuum leaks in the intake system.

1. Start the engine and let it idle.
2. Listen for any unusual noises, such as hissing or whistling.
3. Check for a smooth and stable idle.
4. Use an OBD-II scanner to check for any trouble codes.
5. Take the vehicle for a test drive and check for proper acceleration and power.
6. Monitor fuel economy to ensure it is within normal range.

Q: How do I know if my intake manifold is cracked?
A: Look for visual signs of cracks, especially around the mounting points and vacuum line connections. You may also hear a hissing sound or experience rough idling.

Q: Can I clean my intake manifold instead of replacing it?
A: Cleaning can help remove carbon buildup, but it won't fix cracks or leaks. If the manifold is damaged, replacement is necessary.

Q: What happens if I don't replace a leaking intake manifold gasket?
A: A leaking gasket can cause vacuum leaks, leading to poor engine performance, reduced fuel economy, and potential engine damage.

Q: Is it okay to drive with a bad intake manifold?
A: It's not recommended. Driving with a bad intake manifold can cause further engine damage and potentially leave you stranded.

Q: How often should I replace my intake manifold?
A: There's no set replacement interval. Replace it when it shows signs of damage or failure.

OEM Part Numbers:

• BMW: 11-61-7-564-679, 11617564679

Fits Years: 2009 2010 2011 2012 2013 2014 2015 2016