Recall Overview
Mercedes-Benz has identified a potentially dangerous defect in the front seat belt pretensioners across multiple 2017 model-year vehicles. This safety-critical component may not deploy properly during accidents, significantly increasing injury risk for front-seat occupants.
Affected Models Include:
- C300 Sedans & Coupes (including 4Matic variants)
- S-Class models (S550, S550 4Matic, S550e, S600)
- GLC300 & GLC300 4Matic SUVs
- Mercedes-AMG C43 (all body styles)
- Mercedes-AMG C63 & C63S models
- Mercedes-AMG S63 4Matic & S65 sedans
- Mercedes-Maybach S550 4Matic & S600 luxury sedans
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Understanding the Safety Risk
Seat belt pretensioners are crucial safety components that automatically tighten belts during collisions to keep occupants properly positioned. When functioning correctly, they:
- Reduce forward movement by up to 4-6 inches during impact
- Minimize secondary impacts with interior surfaces
- Work in conjunction with airbags for optimal protection
The defective pretensioners may not activate or may only partially deploy, potentially allowing excessive occupant movement during crashes. NHTSA testing shows properly functioning pretensioners can reduce serious crash injuries by up to 45%.
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Recall Resolution
Mercedes-Benz has authorized a complete replacement of both front seat belt assemblies at no cost to vehicle owners. The repair:
- Takes approximately 1.5-2 hours at authorized dealerships
- Uses improved pretensioner mechanisms with upgraded components
- Includes full system diagnostics to verify proper operation
All parts and labor are covered under Mercedes-Benz's recall warranty program, regardless of vehicle age or mileage.
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Owner Action Required
Mercedes-Benz will implement a two-phase notification process:
- Initial Notice: Explains the safety risk and temporary precautions
- Final Notice: Sent when replacement parts are available at local dealers
Immediate Steps for Owners:
While waiting for official notifications, owners should:
- Check recall status using their 17-digit VIN at NHTSA's recall lookup tool
- Contact the Mercedes-Benz recall hotline at 800-367-6372
- Schedule service as soon as parts become available
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Finding Authorized Recall Service
MotorVero recommends using only certified Mercedes-Benz dealerships for recall repairs to ensure:
- Genuine OEM replacement parts
- Factory-trained technicians
- Proper documentation for your vehicle history
Use our dealer locator tool to find the nearest authorized service center.
