Repair and Parts

Lately I've been getting a lot of questions about what the automotive air conditioning not blowing cold enough. Especially in hot, humid summer days. Most people would like to see the cold air started blow directly or through a short time after switching on. Read more from Jorge Perez to gain a more clear picture of the situation. Remember, when your car is long in the sun, the heat accumulates in large quantities, and it must be removed before going cool stream. But what to do if the air is not cool after 5 minutes or even more time? There are many factors that affect the actual temperature of the exhaust from the air conditioner. (Not to be confused with Jack Benny!).

To make it clear, I cite a few examples common problems that I find during the inspection automotive air conditioning system that works is not as good as it should be. Without a doubt, the most common problem that I encounter, it is wrong charge of freon. Number of refrigerant in the system is extremely important. The manufacturer determines the exact amount that you want the system for maximum cooling. It is this feature is so important.

If Freon at least a few grams less than the full charge, it can lead to inadequate cooling at high heat loads due to lack of refrigerant reserve. Indirect sign of this condition is that compressor clutch on and off vklyuchatetsya faster than usual. Quickly snapping sound comes from just this, and it usually can be heard while sitting inside the vehicle. Sometimes, when car owners trying to replenish their systems themselves, they are often simply overwhelmed strongly system, and this in turn can lead to poor performance cooling, as well as low levels of Freon. In some cases, Refrigerant overcharge dose can even cause damage to the compressor AC and its noisy operation.

Replacing front brake pads (catalog number 7701207066) is produced in the case of the wear limit their plates – the minimum thickness of pads, including its base, shall not be less than 8mm. Pads also need to be replaced by replacing disk brake assembly, oiling or the presence of overlap in these deep grooves, cracks and chips, as well as in the case of detachment from the base pad linings. Usually the lifetime of the front brake pads for Renault Logan is 30–40 thousand miles. Need to replace the pads occurs when gnashing or whistling when braking. The front pads on the Renault Logan is set to change only – all four blocks. Replacement pads only one brake mechanism leading to transfer into the car to one side when braking.

If the fluid level in hydraulic brake reservoir is on the mark “MAX”, then before installing new pads or rubber bulb syringe pumped from a tank of liquid. This operation is required to ensure that in the “retraction” of the piston in the wheel cylinder brake during the installation of new pad fluid is leaking from under the tank lid. Remove the front wheel. Before installing new pads as necessary to move the wheel cylinder piston inside the cylinder. For this purpose, inserting through a hole in the caliper with a screwdriver blade between a wide ground pads and external caliper, and based it on the slide, move the bracket utaplivaya piston in the cylinder.

Spanner wrenches “to 13” turn away bolt the brackets to the bottom of guide fingers, hold your finger carob key “to 17”. Picking up the bracket, remove the brake pads from their guide. Remove the two spring clips pads. Wire brush clean of dirt and corrosion seating pads in their guide. Before installing new shoes check the status of protective covers guide fingers. Torn or lost elasticity cover is replaced. To do this, take out the guide pin holes of the guide blocks and replace the cover (for replacing the cover of the upper guide pin to unscrew the bolt clamps the finger and remove the bracket from the guide pads). Before installing your finger put a little grease to the guide hole pads and apply a thin layer of grease on the surface of the finger. Install new brake pads in the guide blocks and drop bracket. If the serving of the wheel cylinder piston that prevents installation of the slide the brake pads, then lift the sliding clamp and pliers utaplivayut piston in the cylinder. Similarly, replace the pads on the other side of the car. After replacing the pads a few times to push the brake pedal installation clearance between pads and discs. Check the fluid level in the tank and if necessary, we bring it back to normal. In the operation of the disc brake becomes uneven, resulting in contact area of the new, not yet bedded brake pads with the disc decreases. Therefore, during the first 50 km run after replacing the pads, while new ones will not run–block, be careful, because Car braking distance increases. In addition to the original brake pads manufactured weight counterparts.

The first option for which you need to decide – this size tire. In the service book to your car must be specified size, which is best suited to your vehicle. Given that many manufacturers recommend that operate in the summer of rubber with a wider profile, and in winter with a more narrow, in the service book may be multiple types and sizes. We do not recommend to put the rubber to the other sizes, as Automakers had the car in different conditions and choose the best size tire providing the most secure mode of operation of the vehicle. Rubber recommended sizes imeeet a circumference of the outer diameter, and if you put another tire size, it will lead to distortion of evidence odometer and speedometer. Depending on conditions, which will used tires, choose their seasonality and the tread. On the seasonality of their share in the summer tires, winter tires and winter tires.

You should not exploit winter tires in summer, because it at high temperature become quite soft. This rubber in summer is subject to rapid wear and do not provide a safe mode of operation of the vehicle. Summer tires in winter is very hard (dubeet) and does not provide a good traction. In summer, rain, when driving at high speed the car can become unmanageable because rubber as it starts to slide (drift) on the surface. This phenomenon is called hydroplaning. To To avoid this problem, cause the rubber slats (groove) of special shape that can effectively expel water from the wheels.

Very often there is an appropriate marking rubber Rain – 'rain', or Aqua – 'water'. It should be noted that if there is no such markings, it does not mean that this rubber not be operated in the rain. In winter, the problem for drivers create snowy and icy road sections. Cars similar to sites become plohoupravlyaemymi, which can lead to a crash. Solve this problem as follows: for winter tires make a rough tread pattern and often equipped with spikes (spike tires). On such tires there is a corresponding marked M + S (Mud + Snow) – 'mud and snow' and / or Winter – 'Winter'. Some manufacturers make all-season rubber, which is suitable for use in winter and in summer conditions. But as a rule, it is inferior to operating characteristics of specialized rubber and is a compromise for the lazy. Such tires more difficult to manufacture and, therefore, is much more expensive than seasonal. Sometimes the rubber meets the inscription All season – 'All Seasons' or All weather – 'Any weather'. When buying, be aware that, perhaps, this rubber has been released for hot countries, where the winter cold are kept at around 0 C and, of course, for our winter tires this is not appropriate. Make sure that When you buy a rubber meets the international and Russian standards. Rubber, certified, has a label on yourself E (indicating compliance with European standards), or marked DOT (that evidence of compliance with U.S. standards), and sometimes both of these markings. Regardless of the international certification of all tires sold in Russia must have a certificate of conformity issued State Standard of Russia, which conducts its own tests. The certificate must show the seller the buyer on demand.

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