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Check fluid level, leakage control

The following describes how the procedure produced on a monthly basis. Description checks the levels of other fluids can be found below in the appropriate sections dedicated to specific maintenance procedures. Regardless of the agreed schedule intervals, try not to disregard the facts under the appearance of sagging liquid vehicles - such signs indicate the presence for immediate troubleshooting.

When checking the level of a working liquid of any vehicle should be positioned horizontally!

Fluids are an integral part of the systems, lubrication, cooling, braking and washing of glasses. Because of normal consumption and trends in contamination in the course of operation of the vehicle, should periodically check the status / levels and replacement of hydraulic fluids - Specification for requirements applicable to the types of compounds and filling volume of the corresponding systems.

Engine oil

Visual inspection of leaks

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When marked oiling the power unit and a large consumption of oil, inspect the place of the most probable development of leaks: The sealing element filler cap motor oil - check for cracks and other mechanical damages; Components of the crankcase ventilation system (in particular, - the ventilation hose extending from the cylinder head cover to the intake duct); Cover Gasket (EC) of the cylinder head; Head gasket (s) of cylinders; The sealing element drain plug sump; Gasket oil filter - carefully examine the place fit the filter flange to the landing; Laying of the oil pan; Front and rear crankshaft oil. Wrap in plastic generator, spray the engine is usually cold cleaner - then, after a short time - at the car wash machine. The joints of the mating surfaces and sealing elements of the power unit outside sprinkle lime or talc. Check the oil level, if necessary, make appropriate adjustment (see. Below). During a short (about 30 km) trip (preferably on the highway) warm up the engine to normal operating temperature - hot oil has high fluidity and easily seep through leaks. Park the car in a safe place and, flashing his lamp, examine the engine to localize sources of oil leaks. Eliminate the causes of leaks.

Checking

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The maximum allowable consumption of motor oil 1l / 1000 km, the actual level of oil consumption depends on driving style, - frequent driving at high engine speed leads to an increase in oil consumption. Information on the principle of operation of a control lamp of level of impellent oil is shown in Section A combination of devices, gauges and warning lights and indicator lights. On the danger of falling levels of motor oil prevents the driver built into the assembly of the ignition control lamp (see. Section A combination of devices, gauges and warning lights and indicator lights). Level sensor / temperature / quality of oil is placed under the car, on the right front corner of the sump (see. Conjugated. Illustration). On the ML 230 is a sensor switch oil level (S43). Checking the motor oil is made by means of the probe, threaded into the guide tube and falls to the bottom of the engine sump crankcase it. Checking the oil level should be done before the first day of the current trip, or after about 5 minutes after stopping the engine. If you run the test immediately after turning off the engine, the results are not adequately reflect the situation as part of the oil will be distributed on internal engine components and galleries. Checking the motor oil Remove the dipstick from guide tube and wipe it dry with a clean cloth or a blade with a paper towel. Fill the dipstick back into the tube until it stops, then remove again. After examining the blade of the probe, evaluate the value of oil-wetted area. The oil level should be between the upper and lower marks on the blade of the probe. If necessary, add the appropriate amount of engine oil grades required. The oil level should be between the lower (MIN) and the upper (MAX) markings on the blade probe Lowering the level of the lower border allowable range leads to the development of oil starvation of engine, is fraught with serious mechanical damage to the latter. Try not to pour oil above the top mark as this can lead to thrown at the spark plug or failure of seals of the power unit as a result of excessive pressure. To pour the oil in the engine must be removed threaded filler cap. In order to avoid oil spray during filling into the engine, use a funnel or oil can with a long spout. Gulf oil, screw and tighten the oil filler cap, and then start the engine and inspect for signs of leakage drain plug and mating with the surface of the oil filter unit. Stop the engine, wait a 5-10 minutes, during which the oil drains into the tray, and then recheck the level. Excess oil must be drained or pumped from the sump, - excessive level of motor oil can cause failure of the catalytic converter. Track reliability of a tightening of the filler cap. Check engine oil level is the important preventive procedure of maintenance of the engine. Continuous reduction indicates the presence of oil leaks as a result of failure of the seals, damaged seals, wear of piston rings or valve guides. If the oil is in color or consistency like milk or are present in a drop of water, this indicates possible damage to the cylinder head gasket, or the formation of cracks in the body of the head (s) or block. The check should be made without delay. During the measurement of level of oil, always check its condition. Thumb and index finger to remove the blade probe traces of oil - in the case of the presence therein of small metal particles oil must be replaced (see. Section Replacement of impellent oil and the oil filter).

Engine coolant

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Do not suppose antifreeze hit on open sites of a body and the painted surfaces of the vehicle. Casual splashes immediately wash off with plenty of water. Remember that antifreeze is highly toxic liquid and its hit in an organism even in small amounts is fraught with the most serious consequences, including death. Never leave antifreeze stored in leaky closed container, immediately collect spilled on the floor coolant. Remember that the sweetish smell of antifreeze can draw the attention of children and pets. About disposal of used coolant, consult with the local authorities - in many parts of the world special points on any reception of working off. In no case do not drain the old coolant down the drain and to the ground! Recently developed non-toxic antifreeze grade, however, they must be disposed of in an organized manner. All vehicles covered in this manual are equipped with a cooling system of compensation type, operating at a positive pressure. White plastic expansion tank is located in the engine compartment and connected by a hose to the radiator. As the heating of the engine during its operation expanding coolant fills the tank. At cooling of the engine coolant is automatically fed back into the cooling system, which ensures the maintenance of a constant value of its level. On the danger of falling coolant level warns the driver included in the instrument cluster indicator lamp (see. Section A combination of devices, gauges and warning lights and indicator lights). Sensor switch coolant level is placed at the bottom of the expansion tank of the cooling system. Checking the coolant level in the reservoir should be done regularly, at a strictly horizontal position of the car and the engine is off. When cold, the coolant level should be up to the mark ?�COLD LEVEL?�, applied to the translucent wall of the tank. After warming up the engine coolant level is still rising by around 1.0 -1.5 cm. If necessary, make appropriate adjustments - just add the required liquid formulation (see. Specifications). Having made the short trip by car, once again measure the coolant level - a slight adjustment can be made by topping up with distilled water, however, it should be remembered that the frequent addition of water leads to dilution of antifreeze, it is wise always topped up in a mixture of the desired composition. Regularly there is a need to adjust the coolant level indicate the presence of its leaks (external or internal), - carefully examine structural condition radiator, connecting hoses, filler cap, drain plug and the water pump (see. Section Check of functioning of system of cooling and frost coolant replacement fluid). If you identify the source of the leak is not possible, check the tightness of landing covers a broad tank and a radiator in a service station. Removing the covers of the components of the cooling system must be carried out after the complete cooling of the engine. Wrap a cloth cover and remove it to the first point of weakening the resistance - if it from the cover begins to break out steam or cooling liquid, allow the engine to cool a little, and only then completely remove the cover. It is also necessary to check the condition of the cooling liquid, it should be relatively clear. If the fluid has a reddish-brown color, it is necessary to drain, then rinse path cooling system and fill it with fresh mixture of the desired composition. Even if the coolant looks fine, its member corrosion inhibitors over time lose their effectiveness, so a replacement in any case should be made in accordance with the schedule of routine maintenance. Check coolant freezing resistance is carried out using a hydrometer.

brake fluid

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Brake fluid can harm your eyes and damage painted surfaces of the car, so be very careful when handling it. Do not use brake fluid, which was open for a long time, or that more than one year. Brake fluid tends to absorb moisture from the air, which can lead to a dangerous loss of the braking system. Use only the recommended type of brake fluid. Mixing different types of liquid can lead to failure of the braking system. The main cylinder of the brake system is installed in the rear left corner of the engine compartment. On the fall of brake fluid level warning the driver firing of built-in combination of devices the control lamp (see. Section A combination of devices, gauges and warning lights and indicator lights), the float sensor switch which is integrated in the brake master cylinder reservoir (GTZ). The gauge-switch brake fluid level is built into the lid of the tank GTZ The brake fluid level is checked visually and must be between the ?�MAX?� and ?�MIN?�, marked on translucent tank wall GTZ. In case of need make corresponding updating, having added the required amount of fresh fluid through the neck of the reservoir - to loosen the cover, wipe the outside of the tank to prevent the ingress of dirt into the hydraulic path. It should not be poured into the reservoir of an excessive amount of liquid. When the cover is removed, check the fluid and the walls of the tank GTZ for signs of contamination. In the case of detecting the presence of rust particles, dirt or water droplets, the liquid should be replaced by a subsequent "pumping" the brake system. After finishing adjustment / replacement, be sure of landing evenness and reliability of a tightening of the lid of the tank. The gradual lowering of the level of liquid in the tank due to the GTZ brake pad wear. The need for the addition of liquid is absent if the level does not drop below the ?�MIN?�, - if necessary, check the condition of the friction lining pads - replacement pads will automatically equalize the level. If you need to adjust the brake fluid level occurs regularly, you should not carefully check the hydraulic path of brake system for signs of leaks, - carefully inspect the condition of supports / wheel cylinders, GTZ, brake tubes, hoses and compression fittings (see. Sections of Check of brake Systems and Check and replacement of hoses of an impellent compartment, localization of leaks). When lowering the level of liquid in the tank GTZ below the ?�MIN?� brake system should be "bled" (see chap. Brakes and auxiliary systems).

Liquid hydrostrengthening steering system (GUR)

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If the liquid level in the tank drops below the zone corresponding to the current temperature range, steering with hydraulic power steering must be checked by a specialist workshop, since there is a loss of liquid - easy adjustment level in this case will not be enough! Checking the power steering fluid is produced at a temperature of about 20 ?� C. The fluid level must be between the ?�MIN?� and ?�MAX" on the walls of the tank system hydrostrengthening steering. The total volume of the reservoir is 1.2 liters.

Liquid washing of glasses / lenses headlights

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Concentrate windshield means of easily flammable! When handling concentrate glass-agent use of fire, open flame and smoking are prohibited. Windshield washer fluid reservoir is installed in the left front corner of the engine compartment, behind the left headlight unit and is equipped with filler neck with bayonet cap. Tank capacity is about 7.6 liters (cm. Specifications). Location fluid reservoir Windshield washer / headlamp lenses in the engine compartment (all models) On the fall of the liquid level of the driver prevents firing of built-in combination of devices the control lamp - the gauge-switch of a control lamp is mounted in the upper part of the washer fluid reservoir. In areas with a temperate climate system can be charged with ordinary water, but it is recommended to add water glass cleaner (summer concentrate MB is marked S). The tank must be filled to not more than two-thirds of that was space for expansion of water during freezing. In areas with cold climates should use a special concentrate for the windscreen washer (marked W), lowers the freezing point of the liquid, which can be bought in any shop of automobile accessories. Usually it is sold in concentrated or ready-made. If you purchased a concentrated antifreeze, mix it with water according to the manufacturer's instructions on the packaging. Do not use anti-freeze cooling system - it will damage the painted surfaces of the car!