Where is the timing belt on a Volkswagen Polo Sedan. Removal, replacement, installation of the timing chain

It is necessary to timely replace the timing belt with Volkswagen car Polo. In the event of a break, the engine will be seriously damaged and may need to be repaired. Particular attention should be paid to the choice of spare parts - the durability of the motor depends on this.

This car is quite popular, because all the spare parts available for it are represented by many manufacturers. There are original parts and analogues in the auto parts market.

They differ in quality and durability. If possible, the choice should be made in favor of original parts. This will save money on additional repairs, extend the service life.

Effects untimely replacement timing belt, other components:

• the roller begins to slip, over time, the "tensioner" ceases to cope with its task;
• the engine overheats - which can lead to boiling of the coolant;
• belt stretches and breaks.

Details on Volkswagen Polo differ in price primarily depending on the manufacturer. Before buying new constituent parts Timing belt, you should make sure that it is available on a particular engine.

Since 2015, they began to produce Volkswagen Polo with a drive chain instead of a belt. Accordingly, replacement is required much less often. The components are also slightly different. Determining the type of motor is quite simple:

• the belt was installed on cars manufactured from November 2015;
• the chain is used in VW cars Polo sedan produced from 2010 to 2015 - with special letter designations (CFNA - 105 hp, CFNB - 95 hp).

Replacement must be carried out immediately of all parts of the belt mechanism. The list includes the following:

• tensioner roller;
• the drive belt itself;
• bypass roller.

Article numbers of original parts:

• tensioner pulley - VW Polo with CFNA 105 hp engine. — 03C145299C;
• bypass roller - VW Polo with air conditioning with CFNA 105 hp engine. — 1J0145276B;
• original belt - for VW Polo sedan with air conditioning - 6Q0260849E.

Parts cost:

The best solution is to replace with original parts. But the cost of those is sometimes 2-3 times more than analogues. Do-it-yourself repair is possible, but difficult. In addition, you will need an assistant.

You can find out how much repairs cost on the Internet. The cost again varies dramatically in official dealer centers and private service companies. The current price of spare parts depending on the manufacturer:

Description of replacing the timing belt on a Volkswagen Polo

The process of replacing parts of the gas distribution mechanism is complex, requires skills and tools. Of particular difficulty is the need to replace the labels. The process involves the use of a viewing hole, overpass or lift. Belt tension is carried out special device. Appearance mechanism:

The replacement algorithm is almost the same on engines of volumes 1.4 and 1.6. Includes the following main steps:

• it is necessary to dismantle the right fender liner front wheel by car;
• then, using a head with 12 faces by 22, it will be necessary to turn the crankshaft by the pulley mounting bolt - clockwise;

• then the belt itself is inspected - if there are even small cracks, tears or delamination, it is necessary to replace it;
• to loosen the timing belt tension, you need to use the “16” key - then the tension roller fastening bolt is unscrewed;

• the roller bracket will need to be turned counterclockwise - some effort is required to overcome the resistance of the tensioner spring;

• then you will need to turn the roller already counterclockwise - for this you will need to overcome the resistance of the device responsible for the belt tension;
• the belt itself is dismantled;

• the tensioner should be fixed in the pressed position - with the help of improvised means or an assistant;

• using a key of 16 - you need to turn the roller bracket counterclockwise - until the holes match;
• then you need to put the belt on the rollers and the assembly is carried out in the reverse order.

Doing this kind of work alone is difficult. The price in a private car service starts from 5-6 thousand rubles, in an authorized center the amount for such work will be required an order of magnitude more. It is worth noting that the belt resource is approximately 40-50 thousand km. But it is recommended to replace a little earlier. Especially if not an original part is installed, but an analogue.

If for some reason there is no special fixing tool, then you can use an ordinary nail or other long metal, strong enough rod. It will be enough to insert into a special hole on the pulley as in the figure below.

Before removing the belt itself, it is necessary to mark the place with chalk or a marker, make marks - to avoid its incorrect location. If the mechanism is not installed according to the marks, the engine may simply not start. If necessary, you can try to replace it on a conventional jack. But such a procedure often involves difficulties.

Replacing the timing belt and all other parts of the mechanism must be carried out taking into account all the features of this operation. First of all, it is important to prepare in advance necessary tools. This will significantly speed up the process itself.

It is enough to drive to the Volkswagen Polo at least once in order to understand that it is not in vain that German-made cars have become the standard of quality and reliability. And the owners of these machines, especially those who have owned them for more than one year, know one more feature of them: incomparable maintainability. Almost any breakdown - whether it is a malfunction of the engine or any other system - can be repaired without much effort.

The exception to this rule is, perhaps, only one breakdown: a broken timing belt. And it’s not even about the element itself - it’s not at all difficult to replace it. It's just that this malfunction, which almost always happens while the car is moving, entails very serious engine damage.

VW Polo Timing Replacement: Preliminary Information

How does timing work?

The belt drive is used to synchronize the camshaft and crankshaft. The first is responsible for the timely opening / closing of the valves, the second - for the translational movements of the pistons according to the four cycles of the engine. It happens like this:

1. At the initial stage, all valves are closed. The pistons are in their final position.
2. At the moment of injection of the air-fuel mixture, the intake valves open - this is the first stroke.
3. After they are closed, the fuel, under the influence of the pressure of the pistons, begins to shrink until it ignites from high pressure. This is the second beat.
4. The gases formed as a result of the combustion of fuel push the piston back. Actually, this is the useful work of the engine. This movement of the piston through a number of mechanisms is converted into rotational movement of the wheels.
5. And on the last, fourth, stroke, exhaust gases are ejected through the timely opened exhaust valves.

How well this mechanism works depends on Engine efficiency, that is, its power. With a slight desynchronization, the motor power drops significantly. And at a large one, when all its elements begin to work in antiphase, they simply collide with each other, deform or even break. As a result, the whole mechanism has to be changed.

Volkswagen Polo Timing Replacement

This operation, in terms of volume of work and its cost, is comparable to overhaul motor. To do this, car service masters will have to disassemble the Polo power unit literally by cogs, install new pistons, valves, and sometimes cylinders. Moreover: both the distribution and the crankshaft may need to be replaced. Not to mention the belt itself, because of which all this trouble happened. So the car will have to be left at the service station for a few days.

However, the replacement of the VW Polo timing belt is not limited to simply installing new components instead of failed ones. This mechanism requires careful tuning. In particular, the master will:

• polishing the valve plates so that they fit as tightly as possible to the cylinders and clog them tightly;
• value adjustment thermal gap these elements so that the tightness of the combustion chambers is not broken when the engine warms up to its operating temperature;
• lapping of the pistons, which, on the one hand, must freely reciprocate inside the cylinders, but at the same time fit snugly against their walls so that the energy of fuel combustion is not wasted;
• in the process of assembling a new timing belt, carefully adjust it, thereby ensuring a clear synchronization of the operation of all its components.

It is clear that replacing the Polo timing requires a fairly large number of spare parts. Ideally, these should be branded parts. However, their cost is quite high, so you can use their analogues. Russian production, the quality of which is also very good. The main thing in this business is to make sure that all parts used for repair are of legal production. Firstly, this will guarantee their quality, and secondly, in the event of a factory defect (unfortunately, no one is completely insured against this), you could replace them under warranty.

Marginal notes: Single masters, having taken up the replacement of the timing, as a rule, offer car owners to purchase necessary spare parts. Thus, they relieve themselves of responsibility for their quality and durability. In our car service, almost all the components necessary for the repair of the Polo engine are always available, because we cooperate directly with their manufacturers. By the way, this also explains our low prices for them.

Replacing the timing belt Polo sedan

Is it possible to avoid such a complex and expensive repairs, as complete replacement Timing? Yes. And it's very easy to do it. It is only necessary to monitor the serviceability of the belt and in a timely manner, after warranty period work, replace it with a new one.

The manufacturer recommends reinstalling this element every 40-45 thousand km. car mileage. However, this figure is very conditional - the belt can easily work out its resource earlier. Therefore, its inspection is carried out by the master during each scheduled maintenance of the car.

This part is an elastic ring made of rubber and plastic with teeth on the inner surface that engage with the control gears of the shafts. For greater strength, a steel wire is laid between the layers of the belt, which, while increasing the reliability of this element, does not reduce its elasticity. If cracks, scuffs or damage to the edges are found on the belt, it is better not to risk it, but to replace it with a new one without delay.

Fortunately, replacing a timing belt on a Polo sedan is a fairly simple operation for an experienced craftsman. On Polo engines, access to the element is simple - for this you only need to remove the cylinder block cover and the belt cover itself.

Another thing is that in the process of installing a new part, the master will need to re-balance all other timing components and correctly set the tension level. If it is loosened, it can slip through the gears. And excessive tension is fraught with accelerated wear. For this, a special roller is provided, which is included in the standard set of parts required to replace the timing belt Volkswagen Polo sedan.

By entrusting the replacement of the VW Polo timing belt to specialists, you will not only save time, but you will also be sure that nothing threatens the engine of your car for thousands of kilometers.

Volkswagen Polo cars use several engines. When a 1.6 liter engine is installed on the Polo sedan, the timing chain changes on the drive. On engines with a volume of 1.4 liters, a belt is used. In order not to make a mistake in the drive, just look at engine compartment. In the case of a belt installed, a plastic casing will be placed on it, but if the drive is a chain, it will be protected by a metal case.

Manufacturer's official dates

It is necessary to timely replace the timing drive on a VW Polo car. If the belt breaks, the engine will be severely damaged and will need to be overhauled.

If a belt is installed

Under normal operating conditions, the drive changes as planned after 90 thousand km.

During this time, he uses his resource and becomes unusable. Particular attention should be paid to new spare parts, since the life of the engine depends on their quality. Polo sedan pretty popular car, so accessories are produced by many manufacturers.

It is advisable to make a choice in favor of original spare parts: this is guaranteed to save money on possible additional repairs.

The initial symptoms of a worn timing belt are:

• Slippage of the tension roller, followed by weakening of the belt tension;
• Overheating of the motor, which leads to boiling of antifreeze and frequent turning on of the fan to cool the coolant;
• A peculiar noise during the operation of the motor;
• Loss of power, engine stalls and does not start;
• The appearance of pops in the injector receiver and muffler;
• When inspecting the timing belt, cracks, wear of the profile track, and mechanical damage were found.

All such malfunctions indicate a shift in the valve timing and a weak drive tension. If at least one of the listed malfunctions is found, then you need to contact a service station to replace this important engine element.

Volkswagen Polo with timing belt

How many times to change the timing belt for a Volkswagen Polo also depends on what driving style, while how often it is used extreme driving. In such cases, it is necessary to change the timing belt as it wears out and the profiles abrade.

When replacing the timing drive, it is necessary to immediately change other related parts of this mechanism. In this case, it is recommended to use original products with the following article numbers for VW Polo with a CFNA 105 l engine.

Attention! Spare parts for Polo have a different cost, which depends on the manufacturer. In this case, it is recommended, despite the inflated price, to choose a trusted and well-known manufacturer, so that after replacement there is complete confidence in the reliability of the installed parts.

If a chain is installed

Since 2015, the Volkswagen Polo has rolled off the assembly line with a drive in the form of a chain instead of a belt. You can identify such an engine on VW Polo sedan cars by marking: CFNA - 105 hp. with.; CFNB - 95 l. with.

It would seem that a solution has been found for a reliable drive, because all segments of such an element are made of metal, and it is undoubtedly stronger than the material of the belt. But is it really so? How many times during engine operation do you need to replace the timing chain with a Volkswagen Polo? Why do some manufacturers recommend changing the chain every 60 thousand mileage or 3 years of operation, then every 30 thousand km or once every 2 years.

First, you need to consider the size of the engine. It is conventionally accepted on engines up to 1.4-1.6 liters to install a timing belt drive, and over 1.6 liters - a chain drive. The more powerful the motor, the greater the load on this element, and the more often the drive needs to be changed.

Secondly, on Volkswagen Polo cars, as a rule, a chain is installed on turbine engines, and a belt on simple atmospheric engines. At the same time, a hydraulic tensioner is used on engines with a turbine. Such a device automatically stabilizes the chain tension, that is, when this element rotates, the tensioner piston balances.

Attention! If the Polo has an engine with a timing chain drive, then the oil must be replaced every 8–10 thousand km.

Always clean oil in a turbine motor is necessary so that small particles of debris, sawdust, etc. do not get into the chain links. And the main reason is that debris does not get under the tensioner piston and it does not jam. Otherwise, if there is no balanced piston stroke, the chain drive will not work correctly and will quickly fail.

Volkswagen Polo with timing chain

Moreover, in Polo sedan engines with a turbine, the oil burns much faster than in conventional ones. power units. Thus, in order to avoid the question of when to change the timing chain drive to the Polo sedan, experts recommend focusing on diagnostics no longer on mileage, but on sound. As soon as the drive tension is loosened, an increased characteristic noise from the engine will appear.

Vitaly. 7. 06. 2018. Motor Volkswagen Polo Sedan 1.6. equipped with timing chain. The metal chain must prevent breakage and guarantee a longer service life. But in fact, it quickly stretched out and needs to be replaced already by 70 thousand km. A backstop is needed in this drive, otherwise it works only due to oil pressure, which is created only after the engine is started.

Oleg. 8. 08. 2018. Good afternoon. I have a motor installed on my VW Polo car with a timing belt, not a chain. With this run of 80 thousand km. I recommend replacing it, for such a drive it is absolutely appropriate.

Vladimir. 9. 08. 2018. On the Volkswagen Polo with gasoline engines 3.2 and 3.6, manufacturers write that the chain can be changed after 150 thousand km. But for me, replacing the drive chain is a fairly common procedure, because it is single-row and stretches quickly. I recommend, if there is a choice, then buy a car with a two-row chain, and then you can forget about the timing drive.

Vadim. 4. 08. 2018. The mileage on the Volkswagen Polo was 8 thousand km. An interesting observation: more fuel is consumed along the highway than in the city. The chain on the sedan is supplied in two rows, the manufacturer guarantees its resource of 120 thousand km. While everything is fine, there are no significant comments.

Anatoly. 09/12/2018. The right wheel bearing was replaced for maintenance. After 65 thousand km. began to notice the clatter of the chain on the cold. I went to the service station for preventive repairs - they say it's time to change your timing chain. I had to make a replacement, although according to the regulations it was still possible to drive the same amount.

Sergey. 18. 09. 2018. My Polo has already traveled 150 thousand km on one timing belt. And all due to my inexperience, it turns out that according to the instructions it was necessary to change it at 90 thousand km. Don't repeat my mistakes. However, I want to say thanks to the producers. Yes, the belt rustled, vibrated, worn out, but it didn’t break!

Volkswagen Polo cars use several engines. Sedan cars are equipped with a 1.6-liter engine, and the gas distribution mechanism is driven by a chain. On engines with a volume of 1.4 liters, a belt is used. To make sure that you have a belt, just look at the engine itself. If there is a belt, then it will be covered with a plastic casing. If the chain, then it is closed with a metal casing.

What to change with the belt

The most important thing is the belt itself. Despite the fact that the manufacturer has set a service life for it at 90 thousand kilometers, it wears out much faster. Strong belt wear leads to its breakage, and this will be followed by an expensive repair of the block head. Unfortunately, there are no scrapers on the valves (recesses for the valves), therefore, when a break occurs, the pistons hit the valves with a strong blow.

Replacement is best done every 60 thousand kilometers. Moreover, along with the belt, it is imperative to change both the pump and tension roller. The pump needs to be replaced because its bearing wears out, the gear wheel tilts slightly, which causes the belt to gradually shift. As a result, the belt slowly but surely begins to grind against the side of the roller.

A period of 60 thousand kilometers is also the time to develop a drive belt auxiliary units. These include a generator, power steering pump, air conditioning compressor. Of course, after a break in the drive belt of these mechanisms, engine repair will not follow. But certain inconveniences will still arise. Therefore, it is better to replace everything at once.

How to replace the timing belt

The first step is to prepare the car for repair. To be sure, remove the negative terminal from the battery, and also drain the coolant from the system. Don't just do this on a hot engine. First, hot liquid can be scalded. Secondly, when installing a new belt on a hot engine, a valve timing shift may occur. So let the engine cool down, have a cup of tea, tune in to work.

Raise the right side of the car and remove the wheel to expose the pulley on crankshaft. Remove the protection by unscrewing the bolts, then loosen the accessory drive belt and remove it. If he is still in good condition, then throw it in the trunk under the spare tire. Maybe someday there will be trouble on the road and you will have to replace this belt.

Now loosen the nut on the roller, the belt will sag. Remove the old timing belt, then double-check that the marks on the camshaft and crankshaft gears match. Dismantle the pump and install a new one instead, only now you can put the belt on. Make sure that the labels do not go astray, otherwise the operation of the valves will be disrupted. Tighten the roller and assemble everything in reverse order.