Vehicle Maintenance Mercedes M-Class (W163)

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. Use only materials recommended by...

Active Maintenance Warning System (ASSYST)
Scheduled maintenance (MOT) due date indicator Note: The scheduled maintenance indicator informs about the OPTIMAL time for performing maintenance and its readings are...

Schedule of current maintenance
Engine compartment of petrol models (on the example of ML 320) (1 of 2) Engine compartment of petrol models (on the example of ML 320) (2 of 2) 1 - Oil filter; 2 - Air...

General information about settings
The term "setup" is used in this manual to refer to a set of procedures rather than to 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
1. Depending on the model and equipment, tires and wheels of different sizes may be installed. The wheels have a pressing depth of 38 mm - the pressing depth is the...

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

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 frost resistance of the coolant, replacing the liquid
Hoses, as well as drive belts, have a tendency to fail at the most inopportune moment - to avoid troubles associated with a ruptured radiator or heater hose, carefully...

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...

Replacement and checking of ATF level, replacement of AT filter
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. 1. The most likely places for ATF leaks to develop include the...

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 discharging 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 the seat belt and airbag unit
1. Pull out the seat belt completely and check the webbing for damaged threads). Check the belt webbing for damaged threads 2. Damage may be caused by, for example, a...

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
1. Over time, road film accumulates on windshield wipers, reducing their effectiveness, so wipers should be washed regularly in a mild cleaning solution. 2. Windscreen...

Replacing the cabin filter
1. Remove the lower cover installed on the right under the instrument panel (see Chapter Body ). The cabin filter is located under the lower right cover of the...

Replacing brake fluid
Warning! Do not reuse used brake fluid! Old brake fluid is significantly darker than fresh. This makes it easy to distinguish between them. Brake fluid should not be...

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...

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W163 (1997-2005)