Mercedes S-Class W-140

In 1991-1999 editions

Repair and enterprise of the car


Mercedes S-Class
+ Mercedes Benz cars of the class S (W-140)
+ Operation manual
- Routine maintenance
   Specifications
   Active system of the prevention to entrance term systematically THAT (ASSYST)
   Planned schedule of routine maintenance
   General information on vote
   Check of levels of liquids, control of a vytecheniye
   Check of a condition of tires and pressure in them, the name of tires and Disks of wheels, rotation of wheels
   Compensation of engine oil and fat filter
   Check of the brake system
   Check of system of fuel, compensation of the filter for fuel
   Check of a state and compensation of hoses of motor office, localization of a vytecheniye
   Check of a condition of ridge serpantinnogo belts of an incentive of auxiliary devices
   Check of functioning of the cooling system and frost resistance of the cooled liquid, compensation of liquid
   Check of a condition of system of the edition of the working gases
   Check of the ATF level, compensation of the AT filter
   visuale check of density of automatic transmission
   Check of a condition of the Aufhängung components and management
   Check of a condition of protective caps of power shafts
   Check of the air conditioning system
   Lubricants of limiters of doors and cylinders of locks
   visuale control of a seat belt and block of an inflatable safety cushion
   Check of operability of searchlights and klaksona
   Check of a state, regulation and compensation of brushes of screen wipers
   Check of a condition of the battery, its leaving and loading
   Compensation of salonnogo of the filter
   Compensation of brake fluid
   Check and compensation of spark plugs, check of a condition of high-voltage lines (petrol models)
+ motor
+ cooling systems, heating
+ systems of power supply and edition
+ electric equipment of the motor
+ gear shifting boxes
+ Awtomatitscheckaja transmission
+ connection
+ brake system
+ Aufhängung and management
+ body
+ electric onboard equipment


Check of a condition of tires and pressure in them, the name of tires and Disks of wheels, rotation of wheels

On the S420 models also tire S500 with the summer drawing of a tire allow to use only on Disks from light alloy, the tire with the winter drawing of a tire - on Disks from light alloy and steel.

Depending on model and the equipment of the tire and Disks of various volumes can be defined. Disks has depth of sapressowki there are 38 mm sapressowki depth removal from the middle of Disk up to a persistent surface of a wheel on Bremsdisk or a drum. Wheel bolts for steel and legkosplawnych Disks have identical volumes.

Can demand bolts of other volumes from the legkosplawnych Disks structure of other producers.

The equipment improves itself. Can so for older models it is admissible other values of pressure in the tire. Volumes which are specified in documents to the car are the defining factor.

At a sports manner of driving pressure recommended to increase in Forward and the back tire to 0.2 bars. At increase in pressure it is necessary to occur it is necessary from basic value for various conditions of loading.

Winter tires have pressure on above on 0.2 bars than summer, as a rule. It is necessary to consider it is necessary for the recommendation of producers of winter tires.

As winter tires have a restriction after speed, the sign with the indication of speed limit has to be strengthened on the point of view of the driver.

Names Disks

Example 6Jx15

Disk width in duties
6
Alphabetic reference of height and contour tire Disk sakrainy board
JOULE
Name of all deep Disk
x
Diameter of Disk in duties
15
Admissible side beating onboard sakraine Disk:
0.8 mm
Admissible radial beating on Setzregal Disk:
0.5 mm

Name of tires

Example: 195/70 R 14 89 H.

Tire width in millimeter
195
Height relation with width (height of a cross-section of the tire forms 70% of width)
70
Class of speed, N: to 210 km for an hour (on the new tire it is not always brought).
H.
Radial design
R
Disk volume in duties
14
Characteristic of loading capacity
89

If otelnyje of the instruction on width relation with height are absent (considerably it is, for example, 175 R 14), about the "normal" relation. It forms 82%.

If between data the 14 and 89 name M+S costs, it is about tires with a winter tire.


Name of admissible speed limit H.

Symbols of speed behave both by summer, and to winter tires. Alphabetic references of speed are given in specifications.

Date of production of the tire

Date of production is registered on the tire in a code of the producer

Example: DOT CUL2 of UM8 019 TUBELESS

DOT
Department of Transportation (U.S. Department of Transportation)
CU
Reduction of a name of the producer
L2
Tire volume
UM8
Execution of the tire
In 4600
Date of production - the 46th working week in 2000
TUBELESS
beskamernaja (TUBETYPE - tires with the camera)

Regular check of a condition of tires will allow to you to avoid troubles, at breaks on the way because of go down the allowing wheel are connected. Besides, such checks give valuable information on possible problems with management and Aufhängung before emergence in them serious damages.

Tires are equipped with the established strips of the announcement of sale of a tire which undress at immersion of depth of a tire to 1.6 mm then tires are considered for worn-out. This size represents minimum admissible depth of a tire; mostly it is recommended, tires to replace depth of which of a tire of 2 mm and less. It is also possible to determine tire depth by simple and inexpensive application which is known under a name of the measuring device of depth of a tire.

Pay attention to any unusual sale of tires. Such defects of a tire as caves, rotundities, uploschtschenija and stronger sale on violation of corners of the device of forward wheels of und\oder, on the one hand, designate equalizing of a wheel. When tracing some the listed defects it is necessary to address it is necessary for its correction in schinomontaschnuju masterful.

Carefully you check the tire for existence of cuts, holes and the getting stuck nails or buttons. Sometimes she considers after protykanija of the tire nailing still certain time pressure or allows to go down very slowly.

At suspicion you check nakatschki gate nipple density for existence of such "slow hole" at first. Then you look at a tire on presence getting stuck incompetent objects there or before the closed holes started over again passing air again. If there is a suspicion that there is a hole, it can be convinced from its existence, the humidified suspected land plot in soap water. In the presence of a vytecheniye the solution of pusyritsja will begin. If it is possible to repair a hole very little, the tire in each schinomontaschnoj of a workshop usually.

Carefully you look at the internal side surfaces of tires on existence of signs of Ausfließens of brake fluid on them. If it gives it, at once you check the brake system.

Maintenance in the tire of the correct pressure increases the term of its service, helps to save fuel and improves the general comfort of the movement. The special manometer is necessary for check of pressure.

Recommendations

Always you consider the exact manometer in a baggage box. Statements of manometers which are established in articles of air hoses in stations of service, seem is inexact frequent.

Always you check pressure upon the cold tire (i.e. up to a trip by car). If to check pressure upon the warm or warmed-up tire, it will lead to excess of statements of the manometer because of thermal expansion of tires. In this case it is never necessary to allow to go down pressure, there after cooling of the tire it norm is necessary below.

Screw together protection of kolpatschok against the nakatschki gate which is found from Disk of a wheel or from a cover of plugs, then you press in the gate article of the manometer densely. Consider statements of the device and compare them with recommended in specifications. Do not forget to install protection of kolpatschok for prevention of a meeting in the mechanism of the nipple of dirt and humidity into place. Check pressure in all 4 tires and if it is necessary you you refuse them up to the recommended value of pressure.

Do not forget to support the necessary pressure and in a spare wheel.

Check of pressure of air in the tire

An inspection of pressure of air needs to be carried out it is necessary only on the cold tire.

Prevent gate kolpatschok.

Air pressure in the tire is checked once a month, and also when carrying out service (including compensation a wheel). When checking you use the special manometer, or the manometer which is installed in the compressor.

It needs be not to trusted statements of manometers which are established in articles of compressors the tire used for Hinzupumpen on bensosaprawotschnych of the station.

Besides, it is necessary to check air pressure before each long trip as temperature load of tires grows in this case.

Necessary pressure of air in the tire is given in a label which is on tank cover inside.

At application of winter tires pressure of air has to be increased to 0.2 bars of rather certain value.

Pressure of air of close tires of a spare wheel is provided on bokowine Disk. Air pressure in the tire changes depending on change of air temperature on 10 °C approximately on 0.1 bars. It is present it is necessary at monitoring procedure of pressure of air in the tire to consider especially in cold season.

Example:

Temperature in a garage
Along with it + 20 °C
Temperature of external air
Along with these 0 °C
einsteilbare air pressure in the tire
The ordered value, + 0.2 bars

Values of pressure of air in the tire given for small loading of the car are the minimum values which guarantee satisfaction of the movement. Elevated pressure of air in the tire, provided is reflected at the raised car loading, is positive on obedience of the car also at small loading and is absolutely admissible. The river katschenija at the same time, falls, however, something.

Check of the gate of tires

The used lines of extension of gates have to be checked for existence of damages and pollution which conduct to negermetitschnosti. If it is necessary it is necessary to replace it is necessary for the line of extension.

Prevent protection kolpatschok and line of extension.

Gate of tires

1 both 2 — rubber and metal kolpatschki
3 — the gate
4 — a gate body

Charge the small number of the soap decision or sljuny on the gate. If pusyrek is formed vozdushno, tighten an insert (3), - you use superiority metal protection of kolpatschka (2).

Again you check the gate. If pusyrki appear and the gate does not manage to be tightened, is necessary to replace it (work 100).

By all means again you establish into place protection of kolpatschok.

Examples of characteristic sale of tires of tires

Side sale

Insufficient pressure in the tire leads to its overheat at the movement owing to the raised deflection when a tire do not press result in a sufficient step in the surface of the road. It does not lead to loss of connection with the road and to the increased sale of a tire, already except the enterprise owing to an overheat speaking about danger of an exit of the tire.

Check and regulate pressure.

Wrong disorder of wheels (sale, on the one hand)

Repair or replace Aufhängung details.

Too strong changes

Reduce speed!

Central sale

Excess pressure

Excess pressure in the tire leads to the accelerated sale of the central part of a tire, immersion of connection with the road, more rigid movement and increase of danger of fatal damage of a slope.

Check and regulate pressure.

If you had to refuse tires for delivery of heavy freights to the value of pressure specified for this purpose in specifications, do not forget after this strawit upon transition to the normal mode of the enterprise.

Uneven sale

Tires of forward wheels can unevenly wear out owing to violation of regulation of corners of the device of wheels.

Wrong disorder or wybeg

Repair or replace Aufhängung details.

Defect of Aufhängung

Repair or replace Aufhängung details.

Rasbalansirowany of a wheel

Make equalizing of wheels.

Convergence of forward wheels is defined mistakenly

Regulate corners of the device of forward wheels.

Edges of Obtrepannost of a sample of a tire, existing a sale sign, palpation it is best of all

Rotation of wheels

Rotation of wheels is allowed only at the identical volume of halls and back wheels

You make rotation of wheels depending on sale of tires of each 5000-10000 km. At the same time you follow preservation of the Drehens direction of wheels (for the directed tires).

Before emergence of characteristic signs of sale of tires it is necessary to make rotation. The characteristic sign of sale at tires of forward wheels is a sale of a zone of a shoulder of a tire, and at tires of back wheels - the middle of a tire.

At each rotation of wheels it is necessary to clean carefully them from inside. After rotation of wheels you check and if it is necessary you correct air pressure in the tire (see above).

Bolts of strengthening of wheels can become are weak if they were not tightened with the train moment specified in specifications. After compensation of wheels you check the train moment.

Use only original bolts of strengthening of "megabytes", "Mercedes Benz" specified by a star. Other bolts can unscrew.

Spare wheel of an easy design

At damage of the tire the spare wheel of an easy design can be used as a normal wheel; recommended to replace, however, as soon as possible with its normal wheel as it is calculated on the limited movement to 20 000 km.

At compensation of tires the tire of a spare wheel on the driving wheel can be mounted in a ready state if the tire of execution of tires of driving wheels corresponds. If the tire is 6 years more senior as, recommended to use them only at damage of the tire.

Models with tires of volume 245/45R18

If the spare wheel of an easy design is mounted in a ready state, then follows owing to various volumes of tires at change dynamically quality of the car to be considered. Soobrasujte style of driving by a tourist situation.

As soon as possible you replace a spare wheel of an easy design with a usual wheel.

Models with a complete set of the AMG company

There is a danger of accident! If the spare wheel of an easy design is mounted in a ready state, then it is necessary it is necessary it is necessary owing to various volumes of tires at change of dynamic qualities of the car. Soobrasujte style of driving to this situation.

The spare wheel of an easy design is provided only for short-term use at attention of the ordered air pressure in the tire and the speed limit of 80 km for an hour.

The enterprise with more, than to a spare wheel of an easy design it is inadmissible.

Compensation of wheels

Stamped Stahldisks, Disks from light alloy at 15 and 6 opening (7 Ѕ Jx16). At compensation of tires the spare wheel can be used as the worker if the tire corresponds in a new way, and execution of Disk and the tire of execution Arbeitsdisks and tires.

It watch Rasdel Poddomkratschiwanije and towage in the introduction to the modern management.

Bolts of strengthening of wheels

Replace the bolts of strengthening of wheels having damages or traces of a rust.

Do not oil bolts or konsistentnoj from lubricant.

In case of damage of the work of a slice to a wheel nave which cannot continue the movement. It is necessary to address on 100 "Mercedes Benz".

Make cleaning of a surface of a request of a wheel and the plug.

Use only original bolts of strengthening of "megabytes", "Mercedes Benz" specified by a 3-pointed star. Other bolts can turn away. You make a delay of bolts with the ordered effort (150 Nanometers).