2019 - 2024 BMW Z4 Timing Cover (OEM)

What to look for when buying this part:

• Check for cracks or damage: Carefully inspect the timing cover for any visible flaws.
• Verify the material: Make sure the timing cover is made of a durable material that can withstand engine temperatures.
• Ensure proper sealing surfaces: Check that the sealing surfaces are smooth and free of damage.
• Confirm all mounting points are intact: Verify that all mounting points are in good condition.

Quality indicators for the available options:

What's typically included with the part:

• The timing cover itself
• Sometimes includes the water pump gasket or other related seals
• Mounting bolts may or may not be included

Difficulty level and estimated time:

• Difficulty: Medium to High
• Estimated Time: 4-8 hours

Special tools needed (if any):

• Socket set
• Torque wrench
• Seal puller
• Gasket scraper
• Engine support bar (recommended)
• BMW specific timing tools (recommended)

Critical steps and tips:

1. Drain the coolant and oil: This prevents spills and contamination.
2. Remove the accessory drive belt and pulleys: This provides access to the timing cover.
3. Support the engine: Use an engine support bar to prevent the engine from shifting when the timing cover is removed.
4. Carefully remove the old timing cover: Be careful not to damage any surrounding components.
5. Clean the mating surfaces: Thoroughly clean the engine block and cylinder head to ensure a good seal.
6. Install the new timing cover with a new gasket: Use a new gasket and apply sealant as needed.
7. Torque the bolts to the correct specification: Use a torque wrench to tighten the bolts to the manufacturer's specifications.
8. Reinstall all removed components: Reinstall the accessory drive belt, pulleys, and other components.
9. Refill the coolant and oil: Refill the coolant and oil to the correct levels.

Whether DIY is recommended or professional installation is better:

• Professional installation is recommended due to the complexity of the job and the need for specialized tools. DIY is possible for experienced mechanics.

Compare: Used OEM, Refurbished OEM, New Aftermarket

When replacing your BMW's timing cover, you have several options: Used OEM, Refurbished OEM, and New Aftermarket. Each offers different benefits in terms of price, quality, and warranty.

Used OEM:

• These are genuine factory parts taken from used vehicles.
• They offer the best value, providing original equipment quality at a lower price.
• Used OEM parts are tested and inspected to ensure they are in good working condition.

Refurbished OEM:

• These are original factory parts that have been professionally restored.
• Refurbishment may include replacing worn components with new ones.
• Refurbished OEM parts offer a balance of quality and affordability.

New Aftermarket:

• These are brand new parts manufactured by third-party companies.
• They are built to meet or exceed OE specifications.
• New aftermarket parts offer a cost-effective alternative to OEM parts.

Parts commonly replaced or checked at the same time:

• Water pump
• Thermostat
• Drive belt
• Tensioner pulley
• Idler pulley
• Crankshaft seal
• Valve cover gasket

Why replacing related parts prevents repeat failures:

• Replacing related parts at the same time can prevent future problems. For example, if the water pump is nearing the end of its lifespan, replacing it when you replace the timing cover can save you time and money in the long run. Replacing the drive belt and pulleys ensures proper operation of the engine's accessories.

How long this part normally lasts:

• A timing cover can last for 100,000 miles or more under normal driving conditions.

Factors that affect longevity:

• Driving habits: Aggressive driving can put more stress on the engine and timing cover.
• Maintenance: Regular oil changes and coolant flushes can help extend the life of the timing cover.
• Climate: Extreme temperatures can damage the timing cover.
• Quality of parts: Using high-quality replacement parts can help ensure a longer lifespan.

Budget vs mid-range vs premium options:

• Used OEM: $150 - $300
• Refurbished OEM: $250 - $450
• New Aftermarket: $200 - $400

Labor cost considerations if applicable:

• Labor costs can range from $500 - $1000 depending on the mechanic's hourly rate and the complexity of the job.

Total job cost estimates:

• Total cost can range from $650 - $1400 depending on the parts and labor involved.

Known issues for this vehicle's system related to this part:

• Some models have been known to experience oil leaks from the timing cover gasket.
• Overheating can be a common issue if the water pump is not functioning properly.

Any TSBs or common complaints:

• Check for any Technical Service Bulletins (TSBs) related to the timing cover on your specific BMW model. These TSBs can provide valuable information about common problems and solutions.

How to confirm proper operation:

• Check for oil leaks: After the installation, carefully inspect the timing cover for any oil leaks.
• Monitor engine temperature: Make sure the engine temperature is within the normal range.
• Listen for unusual noises: Listen for any unusual noises coming from the engine.
• Check oil pressure: Verify that the oil pressure is within the normal range.

What to look/listen for to verify it's working correctly:

• No oil leaks around the timing cover area.
• Stable engine temperature.
• No unusual noises from the engine.
• Proper oil pressure reading.

Q: How do I know if my timing cover is leaking?
A: Look for oil leaks on the front of the engine, especially around the timing cover area. You might also notice a burning oil smell.

Q: Can I drive with a leaking timing cover?
A: It's not recommended. A leaking timing cover can lead to low oil pressure and engine damage.

Q: Is it difficult to replace a timing cover myself?
A: Replacing a timing cover can be a complex job that requires specialized tools and knowledge. Professional installation is recommended.

Q: What happens if I don't replace my timing cover?
A: If you don't replace a damaged timing cover, it can lead to oil leaks, engine overheating, and potentially serious engine damage.

Q: How often should I replace my timing cover?
A: A timing cover typically lasts for 100,000 miles or more. However, it's important to inspect it regularly for any signs of damage or leaks.

OEM Part Numbers:

• BMW: 11148687455

Fits Years: 2019 2020 2021 2022 2023 2024