Recalls 1 and 3 describe the same brake booster defect. I'll treat them as one issue, giving this vehicle 2 distinct recalls to cover.
The 2010 Mercedes-Benz ML550 has 3 recalls, the most urgent being a driver's airbag inflator that can rupture in a crash and send metal fragments into the cabin, potentially injuring the driver or passengers.
The brake system also has a concern: moisture can collect inside the brake booster housing, corrode the unit from within, and gradually reduce braking power. In a worst case, the brakes can fail entirely, leaving the driver with little ability to slow the vehicle. Both issues carry the same severity rating, and together they cover the two most critical safety systems on the vehicle.
At a glance
What can fail
Moisture can accumulate inside the brake booster housing and cause rust, potentially reducing braking power or causing complete brake failure.
What the fix does
Dealers will remove the rubber sleeve, inspect the brake booster, and replace it if needed at no cost.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Moisture can accumulate inside the brake booster housing, causing corrosion that reduces braking performance or causes brake failure.
What the fix does
Dealers will remove the rubber sleeve, inspect the brake booster, and replace it if necessary at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The driver's front air bag inflator may build up excessive pressure and rupture when the air bag deploys.
What the fix does
Dealers will replace the driver's front air bag module at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
