Vehicle Maintenance Mercedes C-Class (W203)

General description of current maintenance
This Chapter has been compiled to help the amateur mechanic maintain his vehicle in a state of maximum performance, economy, safety and reliability. Later in the Chapter...

Maintenance Specifications
Types and volumes of lubricants and fluids used Keep operating materials out of reach of children. If they enter a child's body, consult a doctor immediately. Use...

Scheduled maintenance due date indicator
Service intervals are indicated on a digital display located on the instrument panel. The first indication of the need for maintenance appears approximately one month or...

Maintenance schedule
The suggested recommendations assume that the vehicle maintenance procedures are performed by the vehicle owner himself, as opposed to work performed at a service...

General information about the setup
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 monitoring
Note: The following procedures are for checking fluid levels every 1000 km (620 mi), monthly, and before each long trip. Other fluid level checks can be found in the...

Checking tire condition and pressure. Wheel identification. Wheel rotation and replacement
Depending on the model and equipment, tires and wheels of different sizes can be installed. The wheels have a pressing depth of 38 mm. The pressing depth is the distance...

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, adjusting the parking brake
Warning! Dust from lining wear that accumulates on brake components may contain asbestos, which is hazardous to health. Do not blow out this dust with compressed air or...

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

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 the ribbed belts of the serpentine drive of auxiliary units
Inspection 1. It is necessary to periodically check the condition of the belt, and if defects are found, replace the belt. 2. The belt tension is carried out by an...

Checking the functioning of the cooling system and frost resistance of the coolant
1. Many serious engine malfunctions are related to cooling system malfunctions. If the car is equipped with an automatic transmission, its operation and service life are...

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 earlier than three hours after turning off the engine....

Checking the Automatic Transmission Oil Level
Automatic transmission fluid dipstick markings. A - at oil temperature 25°C B - at a temperature of 80°C 1. The fluid level in the automatic transmission is measured...

Visual inspection of the gearbox for oil leaks
Gearbox oil leaks may occur in the following places. The joint between the cylinder block and the gearbox (rear crankshaft oil seal and gearbox shaft oil seal). Oil...

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 protective covers of the drive shafts
1. Protective covers of drive shafts are very important elements, as they protect constant velocity joints (CV joints) from dirt, water and other foreign objects that...

Checking the power steering fluid level
1. Check the power steering fluid level periodically to avoid vehicle handling problems such as damage to the steering pump. Follow these steps:. Warning! Do not hold...

Checking the clearance control fluid level
Attention! The car must not be loaded. 1. Turn off the ignition. 2. Remove the cap (1) on the expansion tank (2) and take out the level indicator. 3. Wipe the pointer...

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

Cleaning the sunroof sliding panel mechanism
Lift and slide panel Cleaning the guide rails and pads 1. Open the sunroof panel completely. 2. Clean the guide rails and sliders with a rag. 3. Close the roof....

Visual inspection of the seat belt and airbag unit
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, adjusting and replacing windshield wiper blades
Measuring the angle of inclination of the lever plane to the glass surface 1 - key 2 - windshield wiper lever 3 - lock screw Over time, road film builds up on windshield...

Checking battery condition, care and charging
Tools and materials needed for battery maintenance 1 - Face shield/safety glasses - when brushing away traces of corrosion, crystallized acid particles can easily get...

Tele-Aid Emergency Call System Battery Replacement
Removal 1. Switch the emergency call systems to service mode: Turn on the ignition. Turn on your phone. Dial * on the telephone handset#4610#. Confirm the message that...

Replacing the cabin air filter element / carbon air filter
Replacement is carried out in accordance with the above Maintenance schedule . Removal 1. Release the clamps (1). Note: To open the central clamp, press the edge of the...

Checking, cleaning and lubricating the coupling device
Cleaning and checking 1. Remove the hitch ball joint cover. 2. Remove the ball joint from the vehicle. 3. Visually inspect the ball head (1) and support (2). If the...

Replacing brake fluid
To carry out the work you will need: Open-end wrench for unscrewing the air bleed nipple. Transparent plastic hose with an internal diameter of 6 mm and a container for...

Checking the flexible coupling of the cardan shaft
1. Raise and support the vehicle on stands. 2. If necessary, remove the lower engine compartment cover, refer to Section Removal and installation the engine compartment...

Checking and replacing spark plugs, condition of high-voltage wires
Please also refer to Section Checking and adjusting the ignition timing angle . Warning! Warning! Replace spark plugs only on a cold or slightly warm engine. If the...

Replacing the engine air filter element
Petrol engine 271 Removal 1. Remove 6 Torx screws (arrows in the illustration) screwdriver T25 and remove the air filter cover (1). 2. Pull the air filter (2) slightly...

Replacing the fuel filter
Warning! Gasoline and diesel fuel are highly flammable, so special precautions must be taken when working with any components of the fuel system. Do not smoke or...

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TEXTHTMLBB Code

190 (W201) (1982-1993)