OEM Communication Control Module for 2014-2021 BMW

What to Look For When Buying:

• Compatibility: Ensure the part is designed for your specific year and model.
• Condition: If buying used, carefully inspect the part for any signs of damage or wear.
• Warranty: Check if the part comes with a warranty.
• Seller Reputation: Buy from a reputable seller with positive reviews.

Quality Indicators:

What's Typically Included:

• The communication control module itself
• Sometimes mounting hardware (check with the seller)
• Installation instructions may or may not be included

Difficulty Level and Estimated Time:

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

Special Tools Needed:

• Basic hand tools (sockets, wrenches, screwdrivers)
• Scan tool for clearing codes and potentially programming the new module
• Multimeter (optional, for testing voltage and continuity)

Critical Steps and Tips:

1. Disconnect the battery: Before starting any electrical work, disconnect the negative battery cable to prevent electrical shock or damage.
2. Locate the module: The communication control module is typically located under the dashboard, behind the glove box, or in the center console. Consult your vehicle's repair manual for the exact location.
3. Remove the old module: Disconnect the electrical connectors and any mounting hardware securing the old module.
4. Install the new module: Connect the electrical connectors and secure the new module with the mounting hardware.
5. Reconnect the battery: Reconnect the negative battery cable.
6. Clear codes: Use a scan tool to clear any diagnostic trouble codes (DTCs) that may have been set during the installation process.
7. Programming: Some modules may require programming or coding to be properly integrated with the vehicle's systems. This may require specialized equipment and knowledge.

DIY vs. Professional Installation:

• DIY: If you have experience with automotive electrical systems and are comfortable using a scan tool, you may be able to install the communication control module yourself.
• Professional Installation: If you're not comfortable working on electrical systems or don't have the necessary tools, it's best to have a qualified mechanic install the module. Programming may require a professional.

Used OEM:

• Pros: Genuine factory part, typically tested and inspected, best value.
• Cons: May have some wear and tear.

New Aftermarket:

• Pros: Brand new, built to OE specifications.
• Cons: Quality can vary depending on the manufacturer.

Parts Commonly Replaced or Checked:

• Battery: A weak or failing battery can cause electrical problems that affect the communication control module.
• Wiring Harnesses and Connectors: Damaged or corroded wiring and connectors can disrupt communication signals.
• Fuses and Relays: Blown fuses or faulty relays can prevent the communication control module from receiving power.
• Other Control Modules: Problems in other modules can sometimes mimic communication control module issues.

Why Replacing Related Parts Prevents Repeat Failures:

• Addressing underlying issues, such as a weak battery or damaged wiring, can prevent the new communication control module from failing prematurely.

How Long This Part Normally Lasts:

• 7-10 years or more under normal conditions.

Factors That Affect Longevity:

• Exposure to moisture or extreme temperatures
• Electrical surges or voltage spikes
• Physical damage
• Quality of the original part

Budget vs. Mid-Range vs. Premium Options:

Labor Cost Considerations:

• Labor costs can vary depending on the mechanic's hourly rate and the complexity of the installation.
• Programming the new module may add to the labor cost.

Known Issues:

• Some vehicles have known issues with water intrusion affecting the communication control module. Check for leaks around the windshield, sunroof, or door seals.
• Software updates are sometimes available to address communication issues.

TSBs or Common Complaints:

• Check for any Technical Service Bulletins (TSBs) related to communication problems on your vehicle.

How to Confirm Proper Operation:

• Check for warning lights: Make sure there are no warning lights on the dashboard related to the systems controlled by the communication control module.
• Scan for codes: Use a scan tool to check for any new diagnostic trouble codes (DTCs).
• Test functionality: Test the functionality of the systems controlled by the communication control module, such as the radio, navigation system, and driver assistance features.

What to Look/Listen For:

• Smooth and reliable operation of all affected systems.
• No unusual noises or malfunctions.
• Clear and accurate communication between different vehicle systems.

Q: Will this module need to be programmed?
A: Possibly. Some modules require programming to match your vehicle's specific configuration. Check with the seller or a qualified mechanic to determine if programming is necessary.

Q: How do I know if this is the right module for my car?
A: Make sure the part is specifically listed as compatible with your vehicle's year and model.

Q: What if the module doesn't fix the problem?
A: Communication problems can be complex. If the new module doesn't fix the issue, there may be other underlying problems that need to be addressed. Consult a qualified mechanic for further diagnosis.

Q: Is it okay to buy a used communication control module?
A: Yes, buying a used OEM module can be a good way to save money, as long as you buy from a reputable seller and the module has been tested and inspected.

Q: What kind of warranty should I expect?
A: Warranty coverage varies depending on the seller and the type of part (used or new). Check the seller's warranty policy before making a purchase.

OEM Part Numbers:

• BMW: 84105A0FC23, 84106836765, 84106841002, 84106844147, 84109380157, 84109380160
• Other: 84

Fits Years: 2014 2015 2016 2017 2018 2019 2020 2021