Mercedes Benz ML550, R320 +9 more: Service brakes — vacuum

Affects Mercedes Benz ML550, R320, ML320, ML350, GL320, GL350, GL450, GL550, R500, AMG R63, ML500 · 2006–2012 — about 16K vehicles.

The hazard

Reduced brake performance or brake failure can increase the risk of a crash.

What to do

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 as necessary, replace the brake booster. All repairs will be performed free of charge. Owner notification letters were mailed on May 24, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MMUSA's number for this recall is 2024050001/2. This recall is an expansion of previous recall number 22V-315.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational