Pressure MERCEDES-BENZ C-Class 2000 W202 User Guide

Changing Wheels

Move vehicle to a level area which is a safe distance from the road way.
1. Set parking brake and turn on hazard warning flasher.
2. Move selector lever to position "P" and turn off engine.
3. Prevent vehicle from rolling away by blocking wheels with wheel chocks
(not supplied with vehicle) or sizable wood block or stone. When changing a wheel
on a hill, place chocks on the downhill side blocking both wheels of the other axle.
On a level road, place one chock in front of and one behind the wheel that is
diagonally opposite to the wheel being changed.
4. Using the wrench, loosen but do not yet remove the wheel bolts.




5. Remove the protective cover from the jack support tube opening by inserting the
screwdriver (supplied in the tool kit) in the opening and prying it out. The tube
openings are located directly behind the front wheel housings and in front of the
rear
wheel housings.



6. Insert jack arm fully into the tube hole up to the stop.
Place jack on firm ground. Position the jack so that it is always vertical (plumb-line)
as seen from the side (see arrow), even if the vehicle is parked on an incline.
7. Jack up the vehicle until the wheel is clear of the ground.
Never start engine while vehicle is raised.
8. Unscrew upper-most wheel bolt and install alignment bolt (1) supplied in the
tool kit. Remove the remaining bolts. Keep bolt threads protected from dirt and
sand.



9. Remove wheel. Grip wheel from the sides. Keep hands from beneath the wheels.
10.Clean contact surfaces of wheel and wheel hub. Install spare wheel on wheel hub.
Insert wheel bolts and tighten them slightly. To avoid paint damage, place wheel
flat
against hub and hold it there while installing first wheel bolt.
Unscrew the alignment bolt (1) to install the last wheel bolt.
11.Lower car. Remove jack and insert jack tube cover.
Before storing the jack, the jack arm must be lowered almost to the base of the jack.



Warning !
Always replace wheel bolts that are damaged or rusted.
Never apply oil or grease to wheel bolts. Damaged wheel hub threads should
be repaired immediately.
Incorrect mounting bolts or improperly tightened mounting bolts can cause the
wheel to come off. This could cause an accident. Be sure to use the correct
mounting bolts.


12. Using the wrench, tighten the five bolts evenly, following the sequence illustrated,
until all bolts are tight. Observe a tightening torque of 80 ft.lb. (110 Nm).
13. Ensure proper tire pressure.

Tire Inflation Pressure
A table (see fuel filler flap) lists the tire inflation pressures specified for Mercedes-Benz recommended tires as well as
for the varying operating conditions.

Important !
Tire pressure changes by approx. 1.5 psi (0.1 bar) per 18°F (10°C) of air temperature change. Keep this in mind
when checking tire pressure inside a garage - especially in the winter.
Example:
If garage temperature = approx. +68°F (+20°C) and ambient te mperature = approx. +32°F (0°C) then the adjusted air
pressure = specified air pressure +3 psi (+0.2 bar).
Tire pressures listed for light loads are minimum values o ffering high driving comfort. Increased inflation pressures for
heavy loads produce favorable handling characteristics with lighter loads arid are perfectly permissible. The ride of
the vehicle, however, will become somewhat harder.
Tire temperature and pressure increase with the vehicle speed. Tire pressure should therefore only be corrected on
cold tires. Correct tire pressure in warm tires only if pressure has dropped below the pressure listed in the table and
the respective operating conditions are taken into consideration.
An underinflated tire due to a slow leak (e.g. due to a
nail in the tire) may cause damage such as tread separation, bulging etc.. Regular tire pressure checks (including the
spare tire) at intervals of no more than 14 days are therefore essential. If a tire constantly loses air, it should be
inspected for damage.

Warning !
Do not overinflate tires. Overinfiating tires can result in sudden deflation (blowout) because they are more
likely to become punctured or damaged by road debris, potholes etc.. Follow recommended inflation
pressures.
Do not overload the tires by exceeding the specified vehicle capacity weight (as indicated by the label on the
driver's door latch post). Overloading the tires can overheat them, possibly causing a blowout.

Wiper Blade
Clean the wiper blade rubber with a clean cloth and detergent solution. Replace blade twice a year;
once before and once after winter.


Headlamp Cleaning System
The condition of the wiper blades is important fo r satisfactory cleaning of the headlamp lenses.
We therefore recommend that the blades be insp ected regularly. Replace damaged wiper blades.


Paintwork. Painted Body Components
Mercedes-Benz approved Paint Care should be a pplied when water drops on the paint surface do
not "bead up"; normally in 3 to 5 months, depending on climate and washing detergent used.
Mercedes-Benz approved Paint Cleaner should be ap plied if paint surface shows signs of dirt
embedding
(i.e. loss of gloss).
Do not apply any of these products or wax if your car is parked in the sun or if the hood is still hot.
Use the appropriate MB-Touch-Up Stick for quick and provisional repairs of minor paint damage
(i.e. chips from stones, car doors etc.).


Seat Belts
The webbing must not be treated with chemical cleaning agents. Use only clear, lukewarm water
and soap. Do not dry the webbing at temperatures above 176°F (80°C) or in direct sunlight.

Warning !
Do not bleach or dye seat belts as this may severely weaken them. In a crash they
may not be able to provide adequate protection.


Hard Plastic Trim Items
Pour Mercedes-Benz approved Interior Care onto so ft lint-free cloth and apply with light pressure.


Headliner and Shelf below Rear Window
Clean with soft bristle brush, or use a dry- shampoo cleaner in case of excessive dirt.


Plastic and Rubber Parts
Do not use oil or wax on these parts.


Steering Wheel and Gear Selector Lever
Wipe with a damp cloth and dry thoroughly or clean with Mercedes-Benz approved Leather Care.


Light Alloy Wheels
Mercedes-Benz approved Wheel Care should be used for regular cleaning of the light alloy wheels.
If possible, clean wheels once a week with Merc edes-Benz approved Wheel Care, using a soft
bristle brush and a strong spray of water. Follow instructions on container.

Note:
Use only acid-free cleaning materials. The acid could lead to corrosion.


Ornamental Moldings
For regular cleaning and care of very dirty chrome-plated parts, use a chrome cleaner.

Upholstery
Using aftermarket seat covers or wearing clothing that have the tendency to give off coloring (e.g.
when wet etc.) may cause the upholstery to become permanently discolored. By lining the seats with
a proper intermediate cover, contac t-discoloration will be prevented.


Leather Upholstery
Wipe leather upholstery with a damp cloth and dry thoroughly or clean with Mercedes-Benz approved
Leather Care. Exercise particular care when cleaning perforated leather as its underside should not
become wet. MB Tex Upholstery Pour Mercedes-Benz approved Interior Care onto soft lint-free cloth
and apply with light pressure.


Instrument Cluster
Use a gentle dish-washing detergent or mild detergent for delicate fabrics as a washing solution.
Wipe with a cloth moistened in lukewarm solution. Do not use scouring agents.

Premium Unleaded Gasoline

Caution !
To maintain the engine's durability and performance, premium unleaded gasoline must be used. If
premium unleaded is not available and low octane fuel is used, follow these precautions:
• have the fuel tank filled only partially with unleaded regular and fill up with premium unleaded
as soon as possible,
• avoid full throttle driving and abrupt acceleration,
• do not exceed an engine speed of 3000 rpm, if the vehicle is loaded with a light load such as two
persons and no luggage,
• do not exceed 2/3 of maximum accelerator pedal positi on, if the vehicle is fully loaded or operating
in mountainous terrain.


Fuel Requirements
Use only Premium unleaded meeting ASTM standar d D 439: The octane number (posted at the
pump) must be 91 min. It is an average of both the Research (R) octane number and the Motor (M)
octane number: [(R+M)/2]. This is also k nown as ANTI-KNOCK INDEX. Unleaded gasoline
containing oxygenates such as Ethanol, I PA, IBA and TBA can be used provided the ratio of any
one of these oxygenates to gasoline does not exce ed 10%, MTBE not to exceed 15%. The ratio of
Methanol to gasoline must not exceed 3% plus additional components. Using mixtures of Ethanol
and Methanol is not allowed. Gasohol, which c ontains 10% Ethanol and 90% unleaded gasoline, can
be used. These blends must also meet all other fuel requirements such as resistance to spark
knock, boiling range, vapor pressure etc..


Gasoline Additives
A major concern among engine manufacturers is carbon build up caused by gasoline. Mercedes-
Benz recommends the use of only quality gasoline cont aining additives that prevent the build up of
carbon deposits. After an extended period of using fu els without such additives, carbon deposits can
build up especially on the intake valves and in the combustion area, leading to engine performance
problems such as:
• warm-up hesitation,
• unstable idle,
• knocking/pinging,
• misfire,
• power loss.
Do not blend other specific fuel additives with fuel. They only result in unnecessary cost, and may be
harmful to the engine operation. Damage or malfunct ions resulting from poor fuel quality or from
blending specific fuel additives are not covered by the Mercedes-Benz Limited Warranty.

Check Regularly and Before a Long Trip

The engine compartment of model C 230 is illustrated.
1. Fuel Supply
Open flap by pushing near front (arrow). Turn fuel cap
to the left and hold on to it until possible pressure in tank
has been released, then remove cap.
Failure to remove slowly could result in personal injury.
2. Tire Inflation Pressure
Check at least every two weeks.
For details see Index.
3. Coolant Level
See Adding coolant in Index.
4. Windshield Washer System,
Headlamp Cleaning System
For refilling reservoir see Index.
5. Engine Oil Level
See Engine oil level, checking in Index.
6. Brake Fluid
See Brake fluid in Index.

Vehicle Lighting: Check function and cleanliness.
For replacement of light bulbs, see Lamps, exterior in Index.