Diagnostics, refilling and repair of Mitsubishi Lancer X car air conditioner. Diagnostics, refilling and repair of Mitsubishi Lancer X car air conditioner Lancer 10 freon volume

• Diagnostics, refilling and repair of Mitsubishi Lancer X car air conditioner

Car air conditioning is enough reliable device, ensuring the maintenance of a certain temperature in the car interior. This unit operates in difficult conditions - sudden temperature changes, constant exposure to vibration and other factors sharply reduce the service life of some parts and components of the air conditioner. Therefore, car air conditioning repair is a fairly popular service.

Specialists at JapAuto technical centers provide a full range of services for diagnosing, repairing and refilling Mitsubishi Lancer X car air conditioners. All work at JapAuto technical centers begins with diagnostics - repairing air conditioners is no exception. Diagnostics using special equipment indicates problems - refrigerant leaks, malfunctions of climate control equipment components.

Most often, air conditioner repair involves restoring the tightness of the unit. This problem can be solved in two ways. The first method is to install new spare parts instead of failed parts, the second is to eliminate depressurization using argon-arc welding and powder-plasma spraying.

Our specialists will repair Mitsubishi Lancer X car air conditioners of any complexity. We carry out repairs and production of highways, production of rear circuits of air conditioners. Using argon arc welding and powder coating We restore evaporators and condensers.

Our craftsmen disinfect evaporators, replace bearings and complete renovation automobile air conditioning compressors. From us you can also flush the air conditioning system, purchase spare parts for repairing units of this type, and buy new and used compressors.

One of the most difficult cases is a compressor breakdown. In this case, most often it is necessary not only to change this entire unit, but also to carry out a number of additional procedures - replacing the receiver-dryer and flushing the entire system.

After graduation repair work the unit is refueling. Before refueling, an additional check for the tightness of the cooling system is carried out. To check the tightness, special equipment is used - a leak detector. The test can also be carried out using a vacuum. The car air conditioner is inspected, its operating parameters are measured, after which the refueling itself is carried out, which usually takes no more than half an hour.

Refilling Mitsubishi Lancer X car air conditioners is carried out by our specialists with special care - the operation of the entire cooling system depends on the correct refilling. If the pressure in the system after refueling is increased, the air conditioner may fail; if the unit is underfilled, its operation will be ineffective, therefore, when refueling, you must strictly follow all the manufacturer’s recommendations.

Work aimed at restoring the performance of climate control equipment requires large financial costs. To avoid them, it is recommended to have the unit diagnosed at a technical center at least once every two years. It is also recommended to turn on the device for a short time and winter time too - this will help avoid some breakdowns.

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Maintenance

Technical centers of the JapAuto company are equipped with the most modern equipment in order to carry out maintenance and repair of Mitsubishi Lancer X. We were able to reduce the cost of service due to the presence of a wide customer base - hundreds of car owners use the services of our qualified specialists every day. Timely maintenance allows you to avoid such serious operations as repairing the engine or automatic transmission.

Engine repair

Repairing the engine of a modern passenger car is a complex operation that requires increased attention from craftsmen. Engine restoration is carried out in our center only by qualified specialists using high-tech branded equipment. Fulfilling all the requirements of the manufacturer guarantees the quality of any repair work carried out in our technical center, be it repairing an engine, automatic transmission or body repair Mitsubishi Lancer X.

Diagnostics

Repairing and operating a modern imported car is not a cheap pleasure, because such cars are equipped with many units and components with electronic “stuffing”, the repair of which is quite complicated. Computer diagnostics allows you to save money. Mitsubishi Lancer X is a car that, with proper care, can last a long time. One of the conditions for proper care is regular diagnostics.

Computer diagnostics in our technical centers allows us to identify problems arising in the units and components of the car, on early stage. This allows you to eliminate faults before they lead to serious breakdowns.

Take care of your car and it won't let you down!

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Mitsubishi Lancer is a legendary family of cars that has been produced by the Japanese company Mitsubishi Motors from 1973 to the present day. Cars This family is extremely popular - more than six million Mitsubishi Lancers have been sold worldwide over almost forty years of production.

One of the most popular cars of the family is the Mitsubishi Lancer X, which is the tenth generation of the series. A prototype of this car was presented at the Tokyo and Frankfurt auto shows. In 2007, the production model was officially presented, and in the same year its sales started in the USA. In the same year, maintenance and repair of Lancer X began in American branded service centers.

This model is also extremely popular in our country. Thousands of workshops across the country provide diagnostic, repair and maintenance services for the Mitsubishi Lancer X. The cost of services, as well as their quality, varies greatly. The highest quality services are provided, of course, in the capital. And there are several reasons for this, the most important of which is a large number of specialists with extensive experience in servicing modern automotive equipment. The cost of services depends on the qualifications of the employees and on what equipment is available in the technical center.

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The Mitsubishi Lancer X has established itself as a modern, reliable vehicle. The operation of the car's air conditioner is satisfactory. However, like most systems, it requires maintenance and timely routine maintenance.

The main reasons for extraordinary repair work are:

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• damage to the integrity and malfunction of the radiator of the Lancer X air conditioner;
• failure of the air conditioning compressor bearing;
• the need to refuel and clean the air conditioning system;
• reduction in compressor performance;
• depressurization of the system;
• malfunction of pressure and temperature sensors of the air conditioning control system;
• The climate control control unit does not work;
• Damage to electrical wiring.

Causes and troubleshooting of the main components of the Lancer 10 air conditioner

The cause of the malfunction may be damage to the radiator structure due to foreign objects, parts of a broken fan blade, or a traffic accident.

When choosing and purchasing a radiator, you need to pay attention to the compliance of the design of the joints of the air conditioning system pipes installed in the car.

The original radiator of the Lancer 10 air conditioning system is quite expensive. Restoring the integrity of the radiator structure is possible only in case of minor damage. It is cheaper to replace with non-original models. The table shows the approximate cost of the original radiator and its analogues from various manufacturers.

It is necessary to check the compliance of standard sizes and seats on the manufacturer's official website.

The choice of a specific model of air conditioner radiator depends on financial resources. If you plan to produce independent replacement radiator, it is better to opt for a non-original model, especially since it is technologically easy to replace the radiator.

Compressor bearing failure

The compressor bearing in the air conditioning system is under constant mechanical stress. In this regard, it wears out quite quickly, especially since it is not located in better conditions operation. Main signs of wear:

• extraneous high-frequency sound in the compressor area;
• mechanical knock;
• heating of the compressor during operation.

If the first signs of bearing wear appear, it must be replaced. Sequence of work to replace the bearing:

The cost of analogues of Lancer 10 1.8 B bearings ranges from 400 to 1,000 rubles. Some models from different manufacturers are shown in the table.

In some compressor models, a standard size of 35x50x20 can be installed, so before purchasing a bearing, the unit must be dismantled.

Recharging the air conditioning system

The air conditioning system requires periodic refrigerant charging. Official Lancer X service centers fill the air conditioner with HFC-134a refrigerant, 480-520 grams by volume.

Refueling is necessary in the following cases:

• violation of system tightness after repair;
• loss of refrigerant during long-term operation, leaks;
• if necessary, carry out routine maintenance.

If the air conditioner control unit, using a pressure sensor in the system, detects a value less (or more) than the critical value, it sends a signal to block the activation of the air conditioner clutch. Thus, if the system is not charged correctly, the air conditioning system will not work. For high-quality refueling, special equipment and appropriate certificates are required. Self-refueling is not recommended.

Cleaning the air conditioner evaporator

It is carried out when foreign odors appear in the cabin when the system is turned on. You can do it yourself by special means, For example:

Bacteria can accumulate in the condensate drain container, which this product helps destroy. It's better to pour this product inside drainage system through the drain hole. To examine cavities for contamination, good illumination is required. Fig. 7

Troubleshooting air conditioner control unit errors

To eliminate errors in the control unit, it is necessary to carry out computer diagnostics. After fixing and deciphering the error code, you should not immediately change the sensors or other devices that the scan indicates. It is necessary to check the serviceability of the electrical wiring of the air conditioning system according to the diagram. To do this, it is better to use the services of an auto electrician.

Timely and high-quality maintenance of the air conditioning system is a sure guarantee of its constant performance.

Mitsubishi Lancer 10. Heater and air conditioner - part 2

Compressor 7 (Fig. 12.3) is installed on the engine and is driven by a poly-V-belt that drives auxiliary units. Compressor of axial piston type, variable capacity. The compressor shaft is installed in aluminum housing on two needles

bearings and sealed with an oil seal on the drive pulley side. The compressor has seven pistons with Teflon o-rings. Reed type valves. The capacity regulator is built into the compressor housing. Drive pulley installed

on a double-row ball bearing and rotates constantly when the engine is running. When the air conditioner is turned on, torque from the pulley to the compressor shaft is transmitted through a friction clutch with an electromagnetic drive. Compressor

circulates refrigerant through the system and creates the pressure necessary to force refrigerant through the expansion valve opening.

Condenser 5 of the multi-flow type is installed in front of the radiator of the engine cooling system. The honeycombs are made of flat, thin-walled aluminum tubes with internal longitudinal baffles to provide rigidity. Aluminum tanks with flanges for connecting pipes. The tanks are divided into sections according to their height. Passing through the condenser, the refrigerant flow changes direction several times. In the condenser, the vapors of the refrigerant compressed by the compressor are condensed, and the heat released in this case is removed into the surrounding air.

Receiver-dryer 3 is installed on the left side of the condenser. The housing of the receiver-dryer is made of aluminum alloy. Inside there is a filter element and a cavity filled with desiccant granules (silica gel). The liquefied refrigerant passing through the receiver is cleaned of possible impurities of dirt and moisture.

The block-type thermostatic valve 12 is located under the hood near the engine shield and has flange connections. The pressure of the compressed refrigerant after passing through the throttling hole in the valve body decreases sharply - it begins to boil. A control element is installed in the valve body that changes the flow area of ​​the throttling hole depending on the pressure and temperature of the refrigerant.

The evaporator 11, located in a common housing with the heater, is made of aluminum tubes with fins to improve heat transfer. Passing through the evaporator tubes, the boiling refrigerant actively absorbs heat from the air blowing on the outer finned surface of the tubes. The air is cooled and supplied by fan 10 to the vehicle interior.

The elements of the air conditioning system are connected to each other by pipelines into a single sealed circuit. The pipelines are made of aluminum alloy. To connect the moving elements of the system, the pipelines in some areas are equipped with flexible inserts made of synthetic materials. At joints individual elements The system is equipped with O-rings made of neoprene. The pipelines also contain two service valves 4 and 9 for connecting diagnostic and filling equipment. The valves are closed with threaded caps that prevent dirt from entering.

Rice. 12.3. Schematic diagram air conditioning systems: 1 - combined pressure sensor; 2 - pipeline section high pressure; 3 - receiver-dryer; 4 - service valve of the high pressure line; 5 - condenser; 6 - fan of the condenser and radiator of the cooling system; 7 - air conditioning compressor; 8 - pipeline section low pressure; 9 - service valve of the low pressure line; 10 - heater fan; 11 - evaporator; 12 - thermostatic valve

It is prohibited to press the service valve spools to check the presence of refrigerant in the system!

Pressure sensor 1 combined type installed on the high pressure pipe section in the engine compartment. The sensor forcibly turns off the air conditioning compressor when the system depressurizes (pressure less than 0.17 MPa, or 1.7 kgf/cm2 and during an emergency increase in pressure in the system).

system (pressure more than 2.5 MPa, or 25 kgf/cm2 in order to protect the compressor from overloads. At a pressure of 1.7 MPa (17 kgf/cm?), the sensor turns on the power circuit of fan 6 of the engine cooling radiator, resulting in improved heat transfer in condenser and the pressure in the air conditioning system decreases.

The system is charged with R 134a refrigerant. A special oil is added to the refrigerant to lubricate the compressor.

Notes
When the air passing through the evaporator cools, the water vapor contained in it condenses. Through the drain pipe, the condensate is drained under the bottom of the car. If the ambient air humidity is high, a puddle of water may form under the car - this is indirect sign serviceability of the air conditioning system.

Due to specific features repair of the air conditioning system (see warning above) this subsection describes only work on removing and installing the control unit for the ventilation, heating and air conditioning system, since removal of the remaining elements of the heating and air conditioning unit (including the heater radiator) requires complete removal unit from a car with depressurization of the air conditioning system.

Replacing the air filter entering the cabin is a routine maintenance task and is described in Section. 4 “Maintenance” (see “Replacing the cabin filter ventilation systems, heating

And conditioning", p. 81).

Every person knows what a car air conditioner is and what functions it performs. The air conditioner is one of the components of a car enthusiast’s comfort behind the wheel. In this article we will talk about what malfunctions the air conditioner of a Mitsubishi car can have and how to refuel it.

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Common breakdowns

So, what malfunctions are typical for the climate control systems of Mitsubishi Pajero XL, Lancer 10 or other models:

1. Leaking tubes. Aluminum tubes become unusable with time of use of the Lancer 10 or Pajero XL as a result of exposure to rust. However, in this regard, not only the tubes fail, but also other components car air conditioner, for example, rubber gaskets and seals. As a result of long-term use, as well as exposure to different temperatures and careless installation and dismantling, the seals can harden. But, as a rule, on Pajero XL or Lancer 10 it is the climate control system pipes that leak. In addition to the tubes, the problem of lack of tightness may lie in cracks that form on the compressor. To prevent this, regularly inspect all elements of the system and change tubes on time.
2. Compressor or radiator malfunction. Such a breakdown is one of the most unpleasant, since it entails large labor and material costs. As a rule, problems associated with the radiator or compressor on Pajero XL, Lancer 10 or any other Mitsubishi model are associated with depressurization and lack of proper maintenance. If the car owner does not pay attention to diagnosing and checking the system in time, then dust and moisture may get into it, which leads to corrosion. Malfunctions of the climate control may also be due to insufficient cooling of the radiator. If the radiator fan fails, first of all you need to check the contacts - perhaps they have oxidized. But if everything is fine with the radiator fan, dirt may have accumulated between the radiators, which is preventing the system from functioning normally.
3. Electrical breakdowns. If the air conditioner Lancer 10 or another model does not work, this may be due to electrical problems. As a rule, in this case, again, we are talking about contacts. They oxidize and rot, so from time to time it is necessary to diagnose and replace them.
4. Obstruction of the system. In some cases, the air conditioner on Lancers 8, 9, 10 does not work for this reason. Usually we are talking about a thermostatic valve - dirt can simply get there. Such a problem in the functioning of the air conditioner can be solved by flushing - as a rule, after this the climate system works normally.
5. Pressure too high. It may appear as a result of too much freon being poured into the system or from too little cooling of the radiator.
6. Inoperative air dampers or clogged cabin filter element. Owners of Lancer 10 and other Mitsubishi models with air conditioning often encounter this. It happens that the climate control works properly, however cold air does not arrive at the salon. There is a possibility that this is due to a breakdown of the air damper actuator.
7. Problems in the operation of the climate control control unit. In principle, if problems arise with the “brains,” then it will not be possible to solve them without equipment. This problem can only be resolved by reflashing the unit.

How to fill it yourself?

To refuel yourself, follow these steps:

1. First, put on gloves. Depending on the refill kit you will use, assemble it following the recommendations described in the instructions.
2. In accordance with the service book for your car, you need to find the hole in the low pressure system. Usually the nozzle that comes with the refueling kit is only suitable for this outlet, so you shouldn’t make a mistake. In Mitsubishi, the high pressure hole is different in shape from the low pressure hole.
3. Before opening the hole, the surface around it must be thoroughly cleaned. This is done to prevent debris from accidentally entering the system.
4. Next, connect the refill kit hose to the hole you find.
5. Put the car on the parking brake, turn on the neutral speed. Start the engine and carefully, slowly, unscrew the valve of the freon canister for refilling. Sit in the driver's seat and apply the gas a little - this will allow consumables disperse throughout the system in the most optimal way. Gas until you feel cool air appear in the cabin from the air dampers. Then simply turn off the engine and unscrew the filling hose.

Be careful, refilling of household and car air conditioners is different. The car air conditioner is refilled with oil, different freons. Experts recommend changing the dryer at least once every two years, otherwise the compressor will fail, it will chase away aluminum shavings and you will have to flush the system again. It’s better to do this with specialists!

Video “Detailed instructions for refilling a car air conditioner”

You can learn more about how to refuel a car air conditioner yourself from the video below (video author: Viktor Manyukhin).