This page covers 3 recalls and 22 owner complaints for the 2012 Mercedes-Benz Gl350.
The dominant pattern in 2012 Mercedes-Benz GL350 complaints centers on the airbag system, which accounts for more than half of all reports filed for this model year. Owners frequently describe airbag warning lights illuminating and staying on, along with concerns about whether the supplemental restraint system would function correctly in a crash. Engine complaints make up the next largest group, with owners reporting turbo failure leading to a loss of acceleration and the check engine light coming on. A separate but recurring engine-related report involves timing chain failure causing the engine to shut off while driving at highway speeds. One isolated report describes a moonroof panel fracturing on its own without any impact, and one isolated report involves a heated seat running hot enough to cause a burn.
22
Total Complaints
1
Fire-Related
1
With Injuries
By System
The 2012 Mercedes-Benz GL350 has 3 recalls, the most serious being a driver's frontal airbag inflator that can rupture in a crash and send metal fragments into the cabin, potentially striking the driver or passengers.
The remaining two recalls both describe the same brake booster issue and should be treated as one problem: moisture can collect inside the brake booster housing, causing corrosion that reduces braking power or causes brakes to fail outright. A driver pressing the brake pedal may find it takes significantly more force than expected, or that stopping distance increases without warning.
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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Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
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.
