Airmatic suspension
Even though, the only warranty work ever done on it will be this week with the parking brake release. My guess is something came loose and prevented it from disengaging. I had to pry it up last week by hand. I was like well it's either that or it has to get towed so I just forced it.
The parking brake release you mention is a common issue. My dad has an 2011 E-Class and has just had to have his parking brake fixed. He was just saying that mine will be about ready to be fixed too.



