Models of the ML, GL and R-Class models produced between 2004 and 2015 are affected, it said.
About 70,000 of them are in Germany.
"We have found that in some of those vehicles, the function of the brake booster could be affected by advanced corrosion in the joint area of the housing," Mercedes said.
This could result in an increase in the brake pedal force needed to decelerate the vehicle and/or to a potentially increased stopping distance, it added.
Mercedes is starting the recall immediately.
Send us a letter
Have an opinion about this story? Click here to submit a Letter to the Editor, and we may publish it in print.