Just picked a GL550 2013 with over 95K miles and discovered a code for the turbo,
should I be worried about

any known issues for this model or simply for high mileage?

Thanks in advance

 

Congratulations on the purchase! Please post a photo of the GL. A knowledgeable member will be along shortly. In the meantime, try searching this site. There aren't any common issues that haven't been written about here.

 

What did the code say exactly?? Wastegate error?? I had the wastegate arm get lose once and got. A code for that.

 

Code P0299 Turbo / supercharger Underboost

 

Nice looking GL.

 

I would start by checking the vacuum hoses to turbo wastegate actuators