Vehicle Maintenance Mercedes G-Class (W463)

Routine care and maintenance — general information
The primary focus of this chapter has been to help the amateur mechanic maintain his vehicle in a state of maximum performance, economy, safety, and reliability. The...

Maintenance Specifications
Recommended lubricants and fluids Attention! Do not allow children to access operating materials - if they enter the child's body, immediately consult a doctor! Note....

Active Maintenance Warning System (ASSYST)
Note: The time the vehicle is idle with the battery disconnected is not taken into account by the ASSYST system when calculating the time for the next scheduled...

Schedule of current maintenance
The suggested recommendations assume that the vehicle is serviced by the owner himself, as opposed to work performed at a Mercedes-Benz dealership service station....

General information about settings
The term "tuning" is used in this manual to refer to a set of procedures rather than a single procedure. If the routine maintenance schedule is strictly followed from...

Checking fluid levels, leak control
Note: The following describes the procedure to be performed on a monthly basis. Descriptions of other fluid level checks can be found further in the relevant Sections...

Checking the condition of tires and their pressure, designating tires and wheel rims, rotating wheels
Depending on the model and equipment, different sizes of tires and wheels may be installed. Wheel bolts for steel and alloy wheels are the same size. Note: When...

Changing engine oil and oil filter
General information Warning! Prolonged skin contact with used engine oil is quite dangerous. Use a protective cream and wear gloves during this procedure. Change...

Checking the brake system
Warning! Dust from lining wear that accumulates on brake components may contain hazardous asbestos. Do not blow out this dust with compressed air or inhale it! Do not...

Checking the fuel system, replacing the fuel filter
Warning! Gasoline is highly flammable, so special precautions must be taken when working with any components of the fuel system! Do not smoke or approach the work area...

Checking the condition and replacing engine compartment hoses, localizing leaks
Warning! Air conditioning hoses must be replaced at a dealership service station or a specialist workshop equipped to safely relieve system pressure. Never disconnect...

Checking the condition of multi-rib belts for auxiliary drive units
Checking the accessory drive belt A - New belt; B - Wall wear - ribs are sharpened (on new belts they are trapezoidal); C - Cord exposure; D - Cracks on the back of the...

Checking the cooling system and coolant, replacing the liquid
Note: Please also refer to the materials in the Section Checking the condition and replacing engine compartment hoses, localizing leaks . Hoses, as well as drive belts,...

Checking the condition of the exhaust system
1. The check should be done with a cold engine, so it is best to do it before the first trip of the day or no sooner than three hours after turning off the engine. Check...

Automatic transmission filter and fluid replacement
Note: The automatic transmissions used in the models of cars under consideration are filled with transmission fluid for their entire service life and do not require...

Visual inspection of automatic transmission for leaks
Note: The oil in the automatic transmission does not need to be changed during the entire service life. The most likely locations for ATF leaks include the following:...

Checking the condition of suspension and steering components
Note: Steering and suspension components should be inspected regularly. Worn or damaged steering and suspension components can cause excessive and dangerous tire wear,...

Checking the condition of the drive shaft boots
1. Drive shaft boots are very important elements, as they protect constant velocity joints (CV joints) from dirt, water and other foreign objects that cause damage....

Checking the air conditioning system
Warning! The air conditioning system is under high pressure. Do not attempt to loosen any connections or remove system parts without first releasing the system. The...

Lubrication of door stops and lock cylinders
1. Periodically lubricate the door stops and hinges with Optimol-Optitemp TT 1 lubricant. 2. Lubricate the door lock cylinders. Insert and remove the key several times.

Visual inspection of seat belts and airbag modules
1. Pull out the seat belt completely and check the webbing for damaged threads. 2. Damage may be caused by, for example, a pinched belt or exposure to a burning...

Checking the functionality of headlights and horn
1. Turn on the ignition and check the functionality of all external lighting devices. 2. With the help of an assistant or by backing the car up to a wall, check the...

Checking the condition and replacing the windshield wipers
Checking the status 1. Over time, road film accumulates on windshield wipers, reducing their effectiveness, so wipers should be washed regularly in a mild cleaning...

Replacing the cabin filter
1. The cabin filter is installed in the right rear corner of the engine compartment. 2. Open the hood and fix it in a vertical position. 3. Unscrew the cabin filter...

Replacing differential lock fluid
Warning! Do not reuse used brake fluid! Used brake fluid is easily distinguished from fresh brake fluid by its darker color. Warning! Never drain brake fluid into the...

Replacing brake fluid
Warning! Do not reuse used brake fluid! Used brake fluid is easily distinguished from fresh brake fluid by its darker color. Warning! Never drain brake fluid into the...

Checking and replacing spark plugs, checking the condition of high-voltage wires
Note: Please also refer to the materials in the corresponding Section of the Chapter Engine electrical systems . Caution! Replace spark plugs only when the engine is...

Replacing glow plugs (diesel models)
Details of installation of glow plugs on diesel engines (using a 4-cylinder engine as an example) 1. Warm up the engine to normal operating temperature (80°C)....

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W463 (1999-2019)