2003 - 2008 BMW Z4 Theft Control Module (OEM)

Buying a replacement Theft Control Module? Here's what to look for:

• Check the Part Number: Make sure the part is correct for your car.
• Inspect the Module: Look for any signs of damage, like cracks or corrosion.
• Ask About Testing: If buying a used module, ask if it has been tested.
• Warranty: Check if the part comes with a warranty.

Quality Indicators:

• OEM Markings: Original Equipment Manufacturer parts have the manufacturer's logo.
• Clean Connectors: The connectors should be clean and free of corrosion.
• Solid Construction: The module should feel solid and well-made.

What's Included:

• Typically, only the Theft Control Module is included. You may need to reuse your existing mounting hardware.

Replacing the Theft Control Module can be tricky.

• Difficulty Level: Medium.
• Estimated Time: 1-2 hours.

Special Tools Needed:

• Socket set
• Screwdrivers
• Scan tool (for clearing error codes)

Critical Steps and Tips:

1. Disconnect the battery before starting.
2. Locate the Theft Control Module (usually under the dash or in the center console).
3. Disconnect the wiring harness.
4. Remove the old module.
5. Install the new module.
6. Reconnect the wiring harness.
7. Reconnect the battery.
8. Use a scan tool to clear any error codes.

DIY or Professional?

• If you are comfortable working on cars and have some experience with electrical systems, you can probably do it yourself. Otherwise, it's best to have a professional install it.

You have a couple of choices when buying a Theft Control Module:

• Used OEM
• New Aftermarket

Used OEM:

• These are genuine factory parts that have been tested and inspected. They offer great value because they cost less than new parts.

New Aftermarket:

• These are brand-new parts made by third-party companies. They are built to meet the original equipment specifications.

Sometimes, other parts can cause problems that look like a bad Theft Control Module. It's a good idea to check these parts too:

• Battery: A weak battery can cause false alarms and starting problems.
• Key Fob: A faulty key fob can prevent the car from starting.
• Wiring Harness: Damaged wiring can cause all sorts of electrical problems.
• Immobilizer Antenna: This antenna reads the signal from the key fob. If it's bad, the car won't start.

Replacing these parts at the same time can prevent repeat failures and save you time and money in the long run.

A Theft Control Module usually lasts for 10-15 years.

Factors that affect how long it lasts:

• Climate: Extreme temperatures can shorten its lifespan.
• Water Damage: Leaks can damage the module.
• Electrical Surges: Power surges can fry the module.
• Driving Conditions: Frequent short trips can put extra strain on the electrical system.

Here's what you can expect to pay for a Theft Control Module:

• Budget: $50 - $150
• Mid-Range: $150 - $300
• Premium: $300 - $500

Labor costs to install the module can range from $100 - $300, depending on the shop and the complexity of the job.

Total job cost: $150 - $800

Some BMW, Land Rover, and Mini models are known to have problems with their anti-theft systems. Check online forums and technical service bulletins (TSBs) for any specific issues related to your car. Water intrusion is a common problem affecting the module's reliability.

After installing the new Theft Control Module, make sure it's working correctly:

• Test the Remote Key: Make sure it locks and unlocks the doors.
• Start the Car: Make sure the car starts without any problems.
• Check the Alarm: Test the alarm to make sure it works properly.
• Look for Error Codes: Use a scan tool to check for any new error codes.

Listen for any unusual noises or warning lights. If everything seems to be working fine, you're good to go!

Q: Will this module need to be programmed to my car?
A: Yes, in most cases, the Theft Control Module will need to be programmed to your car for it to work properly. This usually requires a special scan tool.

Q: How do I know if my Theft Control Module is bad, or if it's something else?
A: A mechanic can use a scan tool to diagnose the problem and determine if the Theft Control Module is the cause.

Q: Can I replace the Theft Control Module myself?
A: If you have experience working on cars and are comfortable with electrical systems, you can try to replace it yourself. However, it's often best to have a professional do it, especially since programming is usually required.

Q: What happens if I install a Theft Control Module that isn't programmed?
A: The car likely won't start, and the alarm system may not work properly.

Q: Where is the Theft Control Module located in my car?
A: The location varies depending on the model, but it's often under the dashboard or in the center console. Consult your car's repair manual for the exact location.

OEM Part Numbers:

• BMW: 65756923209, 657569232099, 65758382240, 65758386932, 6923209, 8382240
• Land Rover: YGE000040

Fits Years: 2003 2004 2005 2006 2007 2008