Affected Vehicle Models and Production Years

The recall specifically targets these BMW SUV models:

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• 2018-2019 BMW X3 sDrive30i (rear-wheel drive)
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• 2018-2019 BMW X3 xDrive30i (all-wheel drive)
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• 2018-2019 BMW X3 M40i (high-performance variant)
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• 2019 BMW X4 xDrive30i (coupe-style SUV)
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• 2019 BMW X4 M40i (performance coupe-SUV)
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Approximately 5,600 vehicles in the United States market are included in this safety action. The affected vehicles were manufactured during a specific production period where the brake component issue occurred.

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Detailed Technical Explanation of the Brake Defect

The recall addresses a critical manufacturing issue with the rear brake caliper pistons:

• Insufficient coating: The protective coating on the rear brake caliper pistons may be below specification thickness
• Corrosion risk: Over time, this can lead to premature corrosion of the piston surface
• Performance degradation: Corroded pistons may not retract properly, causing constant brake drag
• Safety implications: Reduced braking efficiency increases stopping distances, particularly in emergency situations

According to BMW's technical service bulletin, this condition primarily manifests in high-humidity environments or regions where road salt is used during winter months.

Official Repair Procedure

BMW has authorized the following repair protocol for affected vehicles:

• Brake system bleeding: Dealers will completely flush and replace the rear brake circuit fluid
• Inspection: Technicians will examine the rear brake calipers for any signs of damage
• Component replacement: If excessive corrosion is found, entire caliper units will be replaced at no cost
• Quality verification: All repairs undergo rigorous testing to ensure proper brake function

The repair typically takes 1-2 hours to complete at authorized BMW service centers.

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Owner Action Plan: Step-by-Step Guide

Contact Information and Recall Timeline

BMW has established multiple channels for recall assistance:

• BMW Customer Relations: 800-525-7417 (Monday-Friday, 9am-9pm EST)
• NHTSA Vehicle Safety Hotline: 888-327-4236 (24/7 availability)
• Online resources: BMW's official recall portal

Finding Authorized Recall Repair Centers

MotorVero maintains an up-to-date directory of certified BMW service facilities:

All recall repairs are performed at no cost to vehicle owners, regardless of warranty status.

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Understanding Your Legal Rights and Protections

Under U.S. safety regulations:

• Manufacturers must attempt to notify all affected owners by first-class mail
• Recall repairs must be offered free of charge for 15 years from the original sale date
• Vehicle owners may be eligible for reimbursement if they paid for previous repairs addressing this issue

Additional BMW Recalls to Be Aware Of

Recent BMW safety actions include:

• Fuel pump control module replacements in certain 3 Series models
• Airbag inflator recalls affecting older X5 vehicles
• Software updates for hybrid battery management systems

Stay informed about all active recalls by regularly checking MotorVero's recall notification system.

Expert Brake Safety Maintenance Tips

Beyond addressing this recall, BMW owners should:

• Have brake fluid changed every 2 years regardless of mileage
• Inspect brake pads and rotors during every oil change
• Address any brake noise or pedal feel changes immediately
• Consider more frequent inspections if driving in harsh conditions
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Why This Recall Matters: Safety Statistics

Brake-related defects account for:

• 22% of all vehicle component failure crashes (NHTSA data)
• Approximately 300,000 crashes annually in the U.S.
• 5% of all automotive recalls in the past decade

Prompt attention to brake recalls significantly reduces accident risks.

MotorVero's Commitment to Automotive Safety

Our independent editorial team provides:

• Unbiased recall analysis free from manufacturer influence
• Direct access to NHTSA safety data
• Expert technical explanations of automotive defects
• Consumer advocacy in safety matters

We maintain strict editorial independence from advertising and sponsorship relationships.