The Recall Desk
Our severity:SevereNHTSA·22V315000·Announced 2022-05-09

Mercedes-Benz Recalls Vehicles Due to Brake Booster Corrosion Risk

Mercedes-Benz is recalling 2006-2012 ML, GL, and R-Class vehicles because moisture in the brake booster can cause corrosion, leading to reduced brake performance or failure.

NHTSA safety advisory

Do not drive this vehicle

NHTSA advises owners to stop driving this vehicle until the recall repair has been completed.

This is the agency’s own advisory, not our assessment. Contact the manufacturer or a dealer, and see the official NHTSA notice for the current guidance.

What this means for you

Our assessment, not the agency’s: severity 4/5 (Severe).

The hazard poses a serious risk of illness, injury, or structural failure. Stop using the product immediately and contact the manufacturer for a refund or repair.

Our severity reasoning: The recall involves a structural vehicle defect (brake failure) that can increase the risk of a crash, meeting the criteria for a Severe rating.

Plain-English summary

Mercedes-Benz USA, LLC is recalling certain 2006-2012 ML-Class, GL-Class, and R-Class vehicles. The recall involves specific models including the R350, ML350, AMG ML63, GL320, GL350, GL450, GL550, R320, ML550, ML450, ML320, ML500, R500, AMG R63, and R550. Owners should refer to the manufacturer's recall report for specific vehicle model details.

The defect involves moisture accumulating in the brake booster housing unit, which can cause corrosion. This corrosion can result in reduced brake performance or complete brake failure, increasing the risk of a crash. Owners are advised not to drive their vehicles until the remedy has been performed.

Dealers will remove the rubber sleeve, inspect the brake booster, and replace it if necessary. All repairs will be performed free of charge. Owner notification letters were mailed on June 30, 2022. Owners may contact MBUSA customer service at 1-800-367-6372 or the NHTSA Vehicle Safety Hotline at 1-888-327-4236.

The recalled product

Product
MERCEDES-BENZ, MERCEDES BENZ R350, ML350, AMG ML63, GL320
Brand
MERCEDES-BENZ
Manufacturer
Mercedes-Benz USA, LLC
Category
Vehicle — Brake System
Hazard
Affected units
350,294

Is your product affected?

Check your packaging against the codes below. If any of them match, the product is part of this recall.

Model numbers (15)

  • R350
  • ML350
  • AMG ML63
  • GL320
  • GL350
  • GL450
  • GL550
  • R320
  • ML550
  • ML450
  • ML320
  • ML500
  • R500
  • AMG R63
  • R550

Distribution

Distributed nationwide across the United States.

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