What are the contents of 45,000 km maintenance of Mercedes-Benz GLK in 300 years?

Hello! It's my pleasure to serve you. Mercedes-Benz maintenance is divided into: A maintenance (generally for oil change and machine filter); B Maintenance (conventional engine oil, mechanical filter, air filter, air conditioning filter element) If the kilometers reach a certain number of kilometers or years, extra brake oil, gearbox oil, gasoline filter, etc. Is necessary. Have a nice trip. I hope this answer is helpful to you. Thank you! If there is something wrong with your car, ask the car mechanic. 4S shop professional technician, 10 minutes to solve.