 Purchase this car in 2014 with 70k miles on it for around 28k.  Got an extend warranty for the car and glad we did.  The entire rack and pinion steering system had to be replaced at 75k miles which was paid by warranty with a cost of around $4600.  The heating element for the def tank went out at a cost of $3300 and the entire tank had to be replaced since they heater is sealed in the tank. That was paid out of our pocket, then we got the dreaded oil cooler leak which is a very common issue on almost every GL diesel which cost right around $4200 to fix as the most the engine has to be taken apart in order to replace the $16.50 oil cooler gasket.  Had huge diesel fuel leak due to o-ring issues with the fuel filter, another $250 spent to fix that.  Then I the air bag compressor failed, $875 to replace that, then had 1 air bag fail, another $1400.  The rear power lift gated failed at cost of close to $2000 to replace it. The final nail in the coffin was the sale of the vehicle for $6500.  We had lots safety recalls with the airbags, but Mercedes has failed to do anything to replace them and keep pushing it off claiming that they do not have the parts to replace it and because of these recall no dealer is able to resell the vehicle till Mercedes fixes the issue making it nearly a worthless suv.  Sticker price on this suv new was $106,235 as it had every option available on it.  Stay away, stay away and please google all the known issue with these vehicles. Don't let our mistake be your mistake!