Installation of air conditioner in a Polo sedan
To take the base “concept” and to drive with open windows in summer heat or to pay in addition 30 000 roubles and to have a pleasure to splash under cold jets of factory conditioner Climatic in a Trendline complete set? Having chosen this or that scheme of Volkswagen Polo sedan, there is no way back. Or nearly not: with your own hands it is possible “to pump” “iron horse” so, that all around will envy you.
Neither official dealers, nor masters will install air conditioner on Kaluga Polo. Although some “private dealers” may well accept the incipient dream of a client, previously having secured a solid financial support from the client. Therefore, the conclusion from it is the following: decide on the spot whether the conditioner will be useful in the future or the button of climate control will stay intact during all period of exploitation.
The money for the owner of Polo sedan is also considerable. Buying air conditioning is not about replacing airbags. Huge expenses will go for purchase of necessary accessories: all kinds of compressors, radiators, evaporators, pipes and other controls. For example, a peculiar tensioner will suit the owner for almost 4000 roubles. What to say about a modern compressor, for which it is necessary to pay about 27-28 thousand rubles. The sum of the two parts already covers the difference between the initial kitting of the German sedan. But you will also need an expensive radiator with an evaporator and various wiring and wiring.
A guide to installing the air conditioning system
All in all, at this point, you will need to pay at least 60,000 rubles for all the equipment. In addition: if you do not have the courage to assemble the device with your own hands, from the purse to the pocket of the master will go a few thousand more rubles. There is, of course, an alternative: original replacements from China. A set of non-original spare parts for the Volkswagen Polo sedan will cost almost twice as much. And, believe me, such offers have long been in demand in the market.
Once all the necessary components are available, you can begin preparatory work. Installation of air conditioner is a very time-consuming process. If you decide to do the installation yourself, be prepared for the fact that you will have to dismantle half of the car:
- Drain the antifreeze.
- Remove the front bumper, fan and air filter.
- Remove the hood seal.
- Disassemble the heating element.
- Install the lower part of the evaporator case and heater fan.
- Connect the evaporator to the heater body.
- Make a hole in the engine panel for the exhaust pipe from the evaporator.
- Install the evaporator and push the exhaust hose into the engine compartment through the hole.
- Remove the adsorber.
- According to the wiring diagram run the plus wire to the battery, following the factory wiring harness.
- The same way we pull the wires to the pressure sensor and air conditioner fan.
- In the passenger compartment on the central control panel, lay the cable for the system activation button.
- Mount the temperature sensor in the heater hole and the thermostat in any convenient location.
- Fasten the plastic clip on the radiator.
- Connect a hose to the radiator, which will need to be connected to the compressor.
- Installing the radiator.
- Lay tube from receiver-dryer to evaporator.
- We connect the low pressure tube and a small tube to the evaporator.
- To prevent parts from colliding when moving, treat them in problematic areas with soundproofing and tie them together with clamps.
- Disassemble the alternator and its bracket.
- Remove the wires from the alternator belt to the headlight.
- Assemble the alternator.
- Fixing the compressor supports to the engine.
- Install compressor on supports.
- Fixing bracket from take-up reel.
- Put on belt, fill up conditioner with freon (500 grams are enough) and enjoy fresh air.
Scheme and frequent problems of air conditioner
In order not to confuse the wiring, before assembling the air conditioner, it is important to study the wiring diagram of all elements of the system, as well as the location of the main relays. There are a total of three relays used in the unit:
- Compressor relay;
- Auxiliary fan relay;
- The main cooling system fan relay.
Relay failure is a common problem with factory car air conditioners. Not just on the Polo sedan. The constant activation of the system causes powerful “voltage spikes” that “kill” the main relay boards.
Another frequent cause of failure of the Polo air conditioner is the wear and tear of the compressor’s electromagnetic clutch and its bearing. The pulley bearing takes the first hit. Destruction can be caused by various reasons: the ingress of moisture on the part or the loosening of the pressure plate. Yes, even trivial bad belt tension can cause the bearing to overheat and deform. Once the bearing begins to grind, play begins to form in the pulley.
When the backlash becomes too great, the pulley begins to touch the surface of the clutch spool. The friction can burn the coil winding and short out the circuit. Worse is only jamming the bearing, which can cause the compressor cover to ignite. In both cases, the result is the same: the compressor is broken, and the owner of a Polo sedan has no choice but to buy a new unit.
In order not to spend huge financial resources to buy a new unit, it is necessary to periodically diagnose and service the air conditioner. Well, or at the very least, listen carefully to suspicious noises that occur after you press the system check button. If alarm whistles start to appear somewhere under a control panel, do not be lazy to get under a cowl and check up functionality of a pulley.
Simply remove the accessory drive belt and turn the pulley by hand. If there is recoil, jamming or creaking, you should think about replacement of the ill-starred bearing before it finally breaks. Otherwise, the repair of the whole unit can cost the owner a lot of pennies.
Installation of air conditioner in a Polo sedan
Is it possible to take the base “concept” and drive with open windows in summer heat or to pay 30,000 roubles more and enjoy the cold jets of factory air conditioner Climatic in Trendline configuration? Having chosen this or that scheme of Volkswagen Polo sedan, there will be no way back. Well, or nearly there won’t be: with your own hands it is possible so “to pump” “iron horse” that everybody around will envy.
Neither official dealers, nor “bushmen” will install air conditioner on Kaluga Polo. Though some “private dealers” can quite take in work a born dream of a client, previously having secured solid financial support of the latter. Therefore the conclusion from this conclusion is as follows: decide on the spot whether the conditioner will be useful in the future or the button of control Climatic will stay untouched during all term of operation.
It’s not a small amount of money for the owner of a Polo sedan. To get an air conditioner is not to change pads. Huge expenses will go for purchase of necessary components: all that compressors, radiators, evaporators, tubes and other controls. For example, some tensioner will cost the owner almost 4000 rubles. What to say about the modern compressor, for which one should pay about 27-28 thousand rubles. The sum of two details already overcovers a difference of starting kitting of the German sedan. And you will also need not cheap radiator with an evaporator and various pipelines and harnesses with wires.
A guide to installing the air conditioning system
In total, at the moment it will be necessary to give not less than 60,000 rubles for all equipment. Plus: if you still will not dare to do the assembling of the device with your own hands, you will have to spend a few thousand rubles more in a master’s pocket. There is, of course, an alternative – the original replacement parts coming from China. A set of non-original parts for a Volkswagen Polo sedan will cost almost twice as cheap. And believe me, such offers have been in demand on the market for a long time.
Once all the necessary components are available, you can begin preparatory work. Installation of air conditioner is a very time-consuming process. If you decide to make the installation with your own hands, then prepare for the fact that you will have to dismantle half the car:
-
Dismantle the dashboard.
Scheme and frequent problems of air conditioner
In order not to confuse the wiring, before assembling the air conditioner, it is important to study the wiring diagram of all elements of the system, as well as the location of the main relays. There are a total of three relays used in the unit:
- Compressor relay;
- The auxiliary fan relay;
- The main cooling system fan relay.
Relay failure is a common problem with factory car air conditioners. Not just on the Polo sedan. Constant activation of the system provokes powerful “surges” of voltage, which “kill” the boards of the main relays.
Wear of electromagnetic clutch of a compressor and its bearing is another widespread reason of breakage of air conditioner on Polo. The pulley bearing is the first to take the hit. The destruction can be caused by different reasons: moisture ingress on a detail, or loose adjacency of a clamping disk. Even a banal bad belt tension can cause the bearing to overheat and deform. Once the bearing starts to wear down, backlash will start to form in the pulley.
When the backlash becomes too large, the pulley will start to contact the surface of the coupling coil. The friction can burn out the coil winding and short out the circuit. Worse is jamming the bearing, which can cause it to turn on the compressor cover. In both cases, the result is the same: the compressor is broken and the owner of the Polo sedan has no other option than to buy a new unit.
In order not to throw away huge financial resources to buy a new unit, it is necessary to periodically diagnose and service the air conditioner. Well, or at least listen for suspicious noises that occur after pressing the system control button. If somewhere under the control panel began to appear suspicious whistling noises, then do not be lazy to get under the hood and check the functionality of the pulley.
It is enough to remove the auxiliary drive belt and manually turn the pulley. In case of backlash, sticking or creaking you should think over replacement of the ill-starred bearing, before it is completely destroyed. Otherwise repair of the whole unit can cost a pretty penny for the owner.
