Mercedes C-Class

W203 since 2000 of release

Repair and car operation



Mercedes-Benz
+ Mercedes-Benz Cars of a class C (W-203)
+ Operation manual
- Routine maintenance
   Specifications
   Indicator of term of approach of planned maintenance (ASSYST)
   Schedule of routine maintenance
   General information on control
   Check of levels of liquids, control of leaks
   Check of a condition of tires and pressure in them. Designation of tires and disks of wheels. Rotation and replacement of wheels
   Replacement of impellent oil and oil filter
   Checks of brake system. Adjustment of the parking brake
   Check of fuel system
   Check of a condition and replacement of hoses of an impellent compartment, localization of leaks
   Check of a condition of ridge belts of a streaming drive of auxiliary units
   Check of functioning of system of cooling and frost resistance of cooling liquid. Liquid replacement
   Check of a condition of system of production of the fulfilled gases
   Check of level of oil of automatic transmission
   Visual control of a box of gear shifting on leakages of oil
   Condition check suspension bracket and steering component
   Check of a condition of protective covers of power shafts
   Check of level of liquid of system of hydrostrengthening of a wheel
   Check of level of liquid of system of adjustment of a road clearance
   Check of central air of air
   Cleaning of the mechanism of the movable panel of the hatch of a roof
   Visual control of a seat belt and safety cushion block
   Check of operability of headlights and horn
   Condition check, adjustment and replacement of brushes of screen wipers
   Check of a condition of the battery, care of it and charging
   Replacement of the battery of system of an emergency call of Tele-Aid
   Replacement of an element of the filter of air of salon / coal filter of purification of air
   Check, cleaning and greasing of the coupling device
   Replacement of brake liquid
   Check of the elastic coupling of the driveshaft
   Check and replacement of spark plugs. Check of a condition of high-voltage wires
   Replacement of an element of the air filter of the engine
   Replacement of the fuel filter
+ Engine
+ cooling and heating Systems
+ Power supply system and release
+ engine Electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment







Replacement of the fuel filter

Gasoline and diesel fuel are extremely inflammable therefore at work with any components of fuel system it is necessary to accept special precautionary measures. Do not smoke and do not come nearer to a venue of works with open fire or the carrying unprotected by the lamp shade. Do not perform such works in the garages equipped with heating devices, working at natural gas (such, as водогреи, dryers, etc.). The working platform should be ventilated well. At gasoline hit on skin immediately wash away it water with soap. At carrying out any works with fuel system put on goggles and hold near at hand the fire extinguisher.


Petrol engines

The fuel filter is located before a back suspension bracket, on the left side under the car, at the bottom.

Removal

 PERFORMANCE ORDER

1. Disconnect a negative cable (-) the storage battery at the switched-off ignition. Previously it is necessary to remove a box of the filter of air of salon.

 Before a detachment of a cable find out a protective code of a radio receiver if that is available, address to the Section Replacement of the storage battery.

2. Dump pressure in a fuel tank for what quickly uncover a tank.

 Operation of lifting and car installation on supports is connected with danger! Therefore before carrying out operation familiarize with Poddomkrachivaniye's Section and Introduction towage to the Management.

3. Lift and establish the car on supports.
4. Remove bottom facing at the left behind so that the fuel filter was available.
5. Remove the screen of fuel hoses located in front of the filter.
6. For simplification of the subsequent assembly mark fuel hoses with a tape.
7. Press fuel hoses clips, for example, HAYET-4590.
8. Turn out the screw on the holder of the filter.
9. Remove collars of fuel hoses.
10. Disconnect fuel hoses, substitute under following fuel capacity and wipe the thick rag which is well absorbing fuel.
11. Take out the fuel filter.


Installation

 PERFORMANCE ORDER

1. Establish into place the new fuel filter.
2. Connect to the fuel filter hoses according to labels. Fix hoses collars.
3. Fix the filter the holder.
4. Establish into place the screen of fuel hoses.
5. Establish into place bottom facing at the left behind.
6. Lower the car on wheels.
7. Attach a negative cable (-) to a battery battery room at the switched-off ignition. Establish into place a box of the filter of air of salon. Enter a code of a radio receiver and establish time on hours.


Diesel engine

The fuel filter is located in an impellent compartment at the left near the engine.

Removal

 PERFORMANCE ORDER

1. Disconnect a negative cable (-) the storage battery at the switched-off ignition. Previously it is necessary to remove a box of the filter of air of salon.

 Before a detachment of a cable find out a protective code of a radio receiver if that is available, address to the Section Replacement of the storage battery.

2. Remove the top cover of the engine, address to the Section Removal and installation of the top cover of the engine.

Substitute under following fuel capacity or enclose a thick rag.


3. Disconnect the fuel hose (1) going to the fuel pump of a high pressure (TNVD), at the fuel filter (2). For this purpose press a lock clip (3) against the stop (in the arrow direction), having established it in open situation, and take out a connecting element.

After that at once return a clip to a closed position. It should not be a long time in open situation.

4. Release a collar for a fuel hose (4) and shift it back. Remove a fuel hose.
5. Unscrew the screw (5) on a collar (6) and take out the fuel filter.


Installation

 PERFORMANCE ORDER

1. Establish the new fuel filter in a collar and fix it the moment 8Нм.
2. Put on a fuel hose the filter and fix it a collar.
3. Check a sealing ring on a connecting element of the transparent fuel pipeline on existence of cracks or any damages. Check the provision of a lock collar. If the lock collar a long time was in open situation, it is necessary to replace the fuel pipeline new.
4. Put on the fuel pipeline the filter. Check reliability of its fastening, feats in different directions.
5. Attach a negative cable (-) to a battery battery room at the switched-off ignition. Establish into place a box of the filter of air of salon. Enter a code of a radio receiver and establish time on hours.
6. The engine 611.962, since No. 257722, and also the engine 612.962: remove air from a fuel contour of low pressure, address to the Section air Removal from a contour of low pressure of fuel.
7. Establish into place the top cover of the engine, address to the Section Removal and installation of the top cover of the engine.
8. Start the engine and visually check fuel system on tightness.