Mercedes-Benz GL 2012 Operator's Manual
![Mercedes-Benz GL 2012 manual cover](/images/e6d4f907b1548a83e1dc92a3/thumbs/thumb175x175.webp)
To reset the service light, turn the ignition to position 1, press the system selection button until the service display appears, then press and hold the reset button until you hear a beep.
The recommended oil type is synthetic 5W-40 meeting MB 229.5 specification for optimal performance.
Check for leaks in the air suspension lines, listen for the air compressor running excessively, and inspect the air springs for damage or wear.
The 2012 Mercedes-Benz GL has a towing capacity of up to 7,500 pounds when properly equipped.
Activate Bluetooth on your phone, search for devices, select "MB Bluetooth", and enter the passcode displayed on the vehicle's screen.
Check the gas cap to ensure it is tight. If the light remains on, use an OBD-II scanner to read the error codes or visit a qualified mechanic.
It is generally recommended to change the transmission fluid every 40,000 to 60,000 miles, depending on driving conditions.
Ensure regular maintenance, keep tires properly inflated, avoid excessive idling, and drive at steady speeds to improve fuel efficiency.
Common issues include battery drain and faulty sensors. Check for faulty wiring and ensure all connections are secure. Replace any faulty components.
Locate the cabin air filter housing under the glove compartment, remove the cover, slide out the old filter, and insert the new filter before replacing the cover.