Volkswagen model range. Volkswagen Polo sedan engine, technical characteristics of Volkswagen Polo engines wv engines

Compared to previous generations of cars, modern models are equipped mainly with standard powertrain options.

Therefore, in order to evaluate the engine of each of the modifications that are offered for the Volkswagen Jetta model, below we provide a detailed description and a number of technical characteristics.

When it comes to choosing a Volkswagen Jetta, the initial question is always which engine is best to take. In the latest model lines presented, the Jetta car is available for purchase with 4 different engine options.

The proposed types of motors can be combined with automatic, robotic and classic manual transmissions.

Jetta engine VW Jetta 1.6 liters

One of the four options is a non-turbocharged German engine with a working chamber volume of 1.6 liters, presented in the Volkswagen Jetta trim levels in two modifications.

The first of them has a power of 85 hp. and a recorded figure of 145 Nm of torque at 3.8 thousand revolutions of the Volkswagen Jetta engine.

When the speed reaches 5.2 thousand per minute, the power unit reaches the upper limit of its power. You can accelerate a Volkswagen Jetta to the notorious 100 km/h in 13 seconds.

When choosing this Volkswagen Jetta power unit, the owner will receive it in combination with a manual transmission, i.e. with mechanics.

The second modification (exactly the same volume) boasts 105 hp, and even additional distributed injection.

At 5.25 thousand revolutions, the maximum power indicator of the Volkswagen Jetta power plant is reached.

Although this engine option also does not have an additionally installed turbocharger. When equipped with a manual transmission engine, the Volkswagen Jetta can be accelerated to 100 km/h in 11.5 seconds; when equipped with an automatic transmission, this speed is achieved in 12.5 seconds, and the maximum is fixed at 180 km/h.

Engine VW Jetta Jetta 1.4 liters

Typically, Jetta engines, including the Jetta 1.4 engine, are gasoline. Just like the motors described above, The engine, with a displacement of 1.4 liters, is available in two options:

1. Turbocharged, 122-horsepower engine with cam injection, using TSI technology.

At 5.0 thousand revolutions, the engine power parameters reach their maximum value. At 1.5-4.0 thousand revolutions, a torque of 200 Nm is achieved.

The engine can be equipped with a mechanical or robotic gearbox. This Volkswagen Jetta configuration will reach 100 km/h significantly faster than the previous two, requiring only 9.8 seconds. The travel speed provided by this configuration is 202 km/h.

2. The engine, which also has a volume of 1.4 liters, has the greatest power, 150 hp. but it is equipped with a direct injection system into the combustion chamber, and also has an additional turbine installed.

This power unit operates using TSI technology, in which the engine has intermediate air cooling. This configuration option has the best dynamics of all the options presented above.

Power 150 hp will be achieved at 5.8 thousand revolutions, and the torque indicator of 240 Nm is achieved at 1.5-4.0 thousand revolutions. It comes with a Volkswagen Jetta engine and a robotic gearbox. Despite the rather modest engine size, the Jetta starts from 0 to 100 km/h in 8.6 seconds, and its maximum speed is 215 km/h.

Why is there such a difference in power between the two Jetta 1.4 engine options?

The fact is that the 122-horsepower engine has only one turbocharger, and the 150-horsepower engine has Twincharger double supercharging. This provides different motor power, but otherwise they are almost the same.

In any case, regardless of the engine size chosen for the Volkswagen Jetta model, it turns out to be a fairly economical unit, the power of which will delight even the most sophisticated car enthusiast.

Additional equipment in the form of crankcase protection is also considered one of the important points, since this is the basis for the safety of car equipment. Below we will look at how you can install protection on your Volkswagen car yourself.

VW Jetta engine number

Each power unit with which the car is equipped has its own identification number. It consists of an original letter combination and a digital part, which is the engine serial number. This engine number is located on the left at the junction of the engine compartment and the Volkswagen Jetta gearbox. Once again, this identification number and letter designation is duplicated on the cylinder head.

On Volkswagen vehicles, you can often find a VIN - a number on the timing belt housing. In this case, the number is applied in the form of a sticker. It also contains a letter designation and VIN number. The letter part that the number contains is additionally on the information plate.

As a rule, this number consists of 9 characters - this is an original combination of letters and numbers. The first part is the letter designation of the power unit, and the second part, consisting of six characters, is the serial number. After the number of engines produced exceeds 999,999 units with the same designation in the letter component, each number now has another letter instead of the first digit. As a result, it turns out that each power unit has its own unique number, by which you can determine where and when it was produced.

Jetta engine protection and installation

In order for the Volkswagen Jetta to serve a long and faithful service, it is necessary to take care of the integrity and safety of its main operating components and assemblies. Most car owners consider installed engine protection to be a necessary condition for the safe operation of a vehicle. It will allow you to avoid mechanical damage or ordinary impacts, which are not uncommon on the roads.

Today, the road surface that exists in average cities is far from perfect, so the engine protection installed on the Volkswagen Jetta will reliably protect the most important parts of power equipment from serious damage and, as a result, expensive repairs.

It is no secret that most manufacturers, in order to save money, do not worry about installing protection on the engine. Therefore, car owners have to deal with this issue on their own.

To independently install crankcase protection on a Volkswagen Jetta, you will need a minimum of tools and time, but the result will provide maximum safety to the technical components of the car. So, to replace or install protection on a Volkswagen car, you will need a key with heads, the protection itself, purchased from official dealers or at any car store.

The main thing to pay attention to is that the protection for the Volkswagen Jetta model must be made of steel, titanium or aluminum. From this list, the steel version is considered the most safe and reliable. In this case, the car owner receives a 2 mm plate made of high-grade metal with a total weight of 8-12 kg. For a Volkswagen Jetta that is not particularly tall, such protection is an ideal option, since it is quite rigid, but at the same time easily lends itself to any modifications or straightening.

According to the existing work regulations, engine protection requires scheduled replacement every 3-4 years. To do this job yourself, you need to perform a few simple steps:

if there is factory protection, it must be removed by unscrewing the bolts;
the new protection is attached in place of the standard one;
The same bolts are screwed in around the perimeter.

Thus, the entire self-installation process took approximately 15-20 minutes. Now the Volkswagen Jetta is not afraid of impacts with the bottom, since there is reliable crankcase protection.

The founder of the German brand Volkswagen is the great engineer Ferdinand Porsche, after whom the legendary car brand Porsche AG is named. It all started in 1934, when Ferdinand Porsche received a government order to develop a passenger car model for the middle class, in other words, the common people. It took the engineer three years to design and subsequently test the ordered model before it went into mass production. The Volkswagen VW30, whose name translated means “people's car,” aroused considerable admiration from engineers and drivers and even made it onto the pages of the New York Times. Journalists from a well-known newspaper called the VW30 a “beetle” for its resemblance to an insect. A successful comparison later became the second name of the legendary car of Ferdinand Porsche.

The plant, founded in May 1938 in Wolfsburg, became the largest in all of Europe and fully complied with the required production capacity of the “people's car”.

In connection with World War II, the Wolfsburg plant was repurposed for the production of military products, like the entire industry of Nazi Germany. It is known that the country's leadership, in particular the Fuhrer himself, was very fond of Volkswagen cars.

With the onset of peacetime, Wolfsburg was occupied by the British, who, fortunately, did not destroy the Volkswagen plant, but on the contrary, handed over an order for the production of several tens of thousands of cars.

In 1948, the management of Volkswagen changed dramatically: Heinrich Nordhoff took over the management of the company. Under his influence, the Volkswagen model range was replenished with convertibles and limousines, and the car maintenance network expanded not only within Germany, but also abroad.

The worldwide fame of Volkswagen cars led to the need to open factories in Brazil, South Africa, Australia and Mexico. By the mid-60s, Volkswagen had become such a powerful enterprise that it was even able to acquire Audi, buying it from Daimler-Benz. The created Volkswagen-Audi (VAG) concern eventually included the Spanish brand SEAT and the Czech Skoda.

In the early 70s, the concern released the revolutionary front-wheel drive Volkswagen Passat, as well as the Volkswagen Golf, an inexpensive and well-equipped car that easily won the competition in its class. The low cost of Volkswagen, the efficiency of engines, as well as the amazing dynamic characteristics of Volkswagen - all this allowed the company to firmly occupy the first lines of the ratings of European automakers.

In 1975, production of the Volkswagen Polo sedan began, and five years later, the Volkswagen Jetta compact car.

During the 90s, the Vento and Sharan models, the comfortable Volkswagen Bora sedan, as well as the new generation Volkswagen Passat appeared in the Volkswagen line.

In 2002, at the Paris Motor Show, the famous Volkswagen Touareg SUV made its debut, which was a worthy competitor to the extremely popular BMW X5.

Now Volkswagen AG is the largest international corporation with factories in fifteen countries around the world. The concern produces not only Volkswagen cars, but also trucks and minibuses.

Volkswagen model range

The Volkswagen lineup is incredibly rich, especially when compared with other brands. The Volkswagen line includes the executive segment (Volkswagen Phaeton), sports crossovers (Volkswagen Tiguan), and all-wheel drive off-road SUVs (Volkswagen Touareg). As for the small and small middle class, this brand has a very large selection of models. Our catalog also includes Volkswagen Touran minivans and commercial vans.

Volkswagen cost

The cost of Volkswagen starts at half a million rubles for the Volkswagen Polo sedan, which belongs to the smallest and most economical class of cars. The price of a small class Volkswagen does not exceed 800 thousand. The cost of a small middle class Volkswagen can reach up to one and a half million, and a medium one - up to two.

In the CIS, the Volkswagen Polo Sedan is a well-known and quite popular model. The modern design and thoughtful solutions of the German concern Volkswagen allowed the budget sedan model to quickly get onto the list of real bestsellers. As you know, this car is assembled in Kaluga and for quite a long time it was produced with two reliable engines with a power of 85 and 105 hp.

However, after restyling, fans of the model were in for a real surprise, since in addition to new bumpers, a radiator grille, a trunk lid, improved sound insulation, a Golf steering wheel, LED headlights and a number of other improvements, the changes also affected the engine. Let's look at this in more detail.

Read in this article

Russian Polo Sedan engine

So, the new Volkswagen Polo Sedan, as before, is a model assembled in Kaluga, which has received improvements, including the engine. We are talking about the CFN motor of the E211 series. Let us immediately note that the new power unit has become even more powerful and more economical. It is also noteworthy that the affordable sedan will receive units produced at the plant in Kaluga.

As before, the engine with a displacement of 1.6 liters has two stages. Only now it is no longer 85 and 105 “horses”, but 90 and 110 hp. In the first case, it is 155 Nm, maximum speed is 178 km/h, acceleration to hundreds is 11.2 seconds. Fuel consumption in mixed mode is 5.7 liters. The more powerful 110-horsepower version also has similar torque, while the top speed is already 191 km/h. Acceleration to hundreds on the version with a manual transmission is 10.4 seconds.

As for the automatic Polo sedan, with the new engine the car accelerates more slowly than the previous modification. Acceleration takes 11.7 seconds. The consumption is also slightly higher, amounting to 5.9 liters, but this is quite expected for an automatic transmission.

We also note that the Germans also offer a sports version of the Polo. We are talking about the Polo GT, which will receive a 1.4-liter engine with 125 hp. Also, this car will be equipped with a 6-speed robotic gearbox.

Let's return to the engine. The new Polo engine, or rather its 90 and 110 hp MPI versions, have become more modern and environmentally friendly. The main feature of the modernized versions of CFN is aluminum. Improvements have made it possible to speed up the warm-up of the engine, and the stove also starts working faster and more efficiently.

The sedan also received an expanded package, which provides improved preparation for winter conditions, which allows for confident and stable driving down to -30 and below.

Other parts and components did not receive any major changes. Actually plastic, it can easily withstand high temperatures. The ignition system is non-contact, the oil pump has a pressure sensor, and it can be configured.

As for the resource, dealers voice a figure of 500,000 km. However, it should be understood that running-in, the quality of fuel, engine oil and maintenance, as well as operating features are factors that can greatly affect the service life, both for the better and for the worse.

You also need to pay attention to the issue and other parameters if the owner, for one reason or another, does not want to use the product offered by the official dealer as part of vehicle servicing.

Naturally, as in any other case, the service life of any engine will greatly depend on the first kilometers. We are talking about compliance with all recommendations and regulations. In this case, the Polo sedan is no exception. And you shouldn't rely on the stated 2 or 3 year warranty.

Let's go further, for the accurate and correct selection of “consumables” the engine number and its markings will greatly help. On a sedan from Kaluga, the serial number is located on the cylinder block under the body. Since the internal combustion engine is new, such information greatly facilitates the selection of engine oil, original spare parts or replacements from catalogs.

By the way, when choosing oils for this model, it is important to pay attention to the viscosity, which should be 5W30 or 5W40, as well as the tolerances. The oil must have approval VW 501 01, VW 502 00, VW 503 00, VW 504 00. ACEA A2 or A3 standard.

As for the manufacturer itself, some sources contain information that Castrol oil is poured into the Polo sedan engine during production. To change the oil, you need to buy about 4 liters; the manufacturer himself recommends pouring 3.6 liters into the engine, and the rest can be stored for topping up. This also needs to be monitored, as it can cause certain problems.

There is also information that power units undergo a so-called “cold run-in” of the engine right at the factory. Managers at car dealerships emphasize that it is for this reason that engines do not need additional running-in. However, in practice, experts pay attention to the fact that the engine, even the most modern one, still needs to be broken in.

The rules are quite simple: you must avoid driving without warming up, abrupt starts, active braking, driving at a constant speed and at the same speed, driving in high gears, too high and too low speeds, driving uphill in high gear, engine braking, towing a trailer. etc.

In other words, during break-in there is no need to “load” the engine for at least the first thousand km. Also, after the first thousand, the oil and oil filter need to be changed, and always use high-quality gasoline not lower than AI-95. Then the next oil change is expected at 3 thousand km, and the 10 thousand km mark can be considered the complete completion of the break-in. After this, the oil is changed again, and the engine can continue to be gradually loaded.

What's the result?

As you can see, if we talk about the Volkswagen Polo Sedan model, the engine after restyling has become more powerful and lighter. Thanks to the modernized cylinder head, which is cast from aluminum, as well as a number of other improvements, this engine is a real technological breakthrough for the plant in Kaluga and can quite rightly be considered an internal combustion engine made in the Russian Federation.

In practice, the pre-restyling version has proven itself to be a worthy competitor to other brands and models on the market, which also promises success and increased demand for the updated version of the Polo.

Finally, we note that like any other car, the Polo sedan has its pros and cons. As for previous versions of the CFN engine, frequent knocking of the pistons when cold was noted. Drivers also experienced that the throttle sensor wires chafed, cracked, problems appeared with crankcase ventilation, and the valve of this system “stuck.”

Another common complaint is problems with the power supply system. At the same time, malfunctions in the operation of the injector and the appearance, as well as knocking of hydraulic compensators, cannot always be considered a drawback of the engine, since the main reason is the quality of the fuel and oil, as well as unscrupulous maintenance.

It is also important to understand that other competing models, to a greater or lesser extent, have certain and often similar problems. However, Volkswagen in many cases takes into account certain shortcomings when modifying its engines. This means that the new CFN E211 engine in the Polo Sedan may well turn out to be a successful and reliable engine, which is devoid of many of the shortcomings and “illnesses” of its predecessor. However, the strengths and weaknesses of this internal combustion engine will only be revealed by practical operation.

Description of engines

Volkswagen engines offer power comparable to reliability. The range of power units is quite extensive. Engines produced by VW are considered the best in Europe and have a good reputation even in America. Thus, the company supplies engines not only to its own brand of cars, but also to such well-known brands as Audi, Skoda, Porshe, Seat, Beantly and even sports cars - Lamborgini and Bugatti.

As you can see, power units from the concern have become quite widespread throughout Europe. Volkswagen produces engines - naturally aspirated, turbocharged, diesel and others. All of them have gained great popularity among car enthusiasts from different countries due to their reliability.

The only drawback of engines is quite complex repairs, which can only be properly carried out at specialized automotive repair stations.

Technical characteristics and model range

VW engines, as mentioned earlier, have high technical characteristics because they are designed and assembled by highly qualified specialists. The range of engines produced by the company is quite large. Thus, there are small power units such as 1.2, 1.4, 1.8 and 2.0 labeled TSi.

These are turbocharged gasoline power units with low fuel consumption and a power of 100 to 200 horsepower. Separately, VAG engines were developed for the Skoda subsidiary, which were widely used for other models of the concern. The average service life of Volkswagen engines is 300,000 km.

In addition to gasoline engines, Volkswagen and other brands were equipped with power units with diesel injection. Diesel engines received the TDi marking. They are most widespread for trucks VW Caddy, VW Transporter, VW Crafter and others.

Most of the group's cars, such as Audi and Bentley, are equipped with engines with V6 and V8 configurations. The manufacturer's greatest pride is the engines for world-famous sports cars. Thus, sports versions of Lamborghini, Audi and Bugatti vehicles received V10, V12, WR12 engines.

The legendary Bugatti Veyron engine with a volume of 8 liters, also produced by VW. Moreover, it has a distinctive configuration - W16, which is considered the best Volkswagen engine in the entire history of production.

It is assembled by hand and undergoes a series of complex tests before it goes directly into the vehicle. At the same time, the engine resource, according to the manufacturer’s data, is 1 million km.

Engine oil for Volkswagen is produced by a subsidiary of VAG. This lubricant has high technical characteristics. As for the oil in the Bugatti Veyron engine, the concern developed a special high-density lubricant for this model. The average maintenance for this vehicle would be $21,000 per trip to the auto repair shop.

Repair of power units

Repair of Volkswagen engines will vary in price depending on the model. So, the 1.4 TSi power unit will be cheaper to repair than the 1.8 TDi. At the same time, the principles of repair for each power unit will differ not only in price, but in the processes carried out. This depends on the design features of each power unit separately, as well as the cost of spare parts.

As for maintenance, almost all service manuals contain one number and the order of work. Thus, the recommended maintenance should be carried out every 12-15 thousand kilometers. However, these are only the norms for changing oil and filters.

It is worth noting that the amount of oil in the engine of each modification is different and must be studied for each specific engine separately. The name of the motor is written on the power unit itself, on a special plate or in the service book.

A major overhaul of a Volkswagen engine is carried out immediately after the engine's service life has expired or spare parts have worn out. Thus, the wear of engine parts is influenced by how often maintenance is carried out, what spare parts and materials are used, as well as the driver’s driving style.

Typically, the service life and suitable overhaul can be found in a specialized car service center, where they will carry out comprehensive diagnostics and determine the actual condition of the engine.

Well, if a car enthusiast decides to independently repair a Volkswagen engine, then he will definitely need engine repairs and maintenance, which are produced by the manufacturer according to the name of the make, model and year of manufacture of the vehicle. The selection of spare parts for the engine can be done by deciphering the identification number of the engine or body, where all the data is written down.

Change of oil

Changing the oil is an essential operation for all engines. This is due to the fact that the lubricating fluid loses its technical and chemical qualities during operation. So, changing the oil in Volkswagen engines is quite simple if you follow the steps:

The engine is allowed to cool.
The engine protection is removed.
Place the container and unscrew the drain plug.
After the lubricating fluid has escaped, the plug is tightened and the o-ring is replaced.
Next, unscrew the oil filter element. This is done using a special puller.
A little new oil is poured into the new filter and screwed on.
New lubricant flows through the filler neck. The amount of oil is determined in the correspondingly marked engine repair and maintenance manuals.
The engine is allowed to run for 5-7 minutes, and then the oil level is checked. If necessary, add it to the required amount.

Tuning a Volkswagen engine is carried out by analogy with other engines. So, there are two options for modifying the engine: software (the most common) and mechanical (popularly - boring and installing additional spare parts).

By software modification we mean chip tuning, which in turn is divided into two subgroups: chip soldering and programming of the electronic engine control unit. The first option should only be carried out by professionals at a specialized car service center, since the process is quite specific and requires in-depth knowledge of automotive electricals.

As for the second option, most motorists do it themselves. To do this, you will need a little knowledge or instructions found on the Internet, a special USB-Car cable and a laptop. Accordingly, you need to download the software.

Software chip tuning aimed at improving the required engine characteristics. So, motorists usually choose one of two options: reducing consumption or increasing power. At the same time, balanced chip tuning is used less frequently.

The manufacturer does not recommend chip tuning of its engines. But, as practice has shown, this kind of recommendations does not influence the opinions of drivers and therefore the company has specially released several official firmware for its power units, which are called Stage+.

The latest version for engines today is version 5. It allows you to select the necessary parameters at the time of programming the electronic engine control unit.

Conclusion

Volkswagen engines have a fairly wide range of names and markings. Thus, the concern produces power units for such famous car brands as Audi, Skoda, Porshe, Seat, Beantly and even sports cars - Lamborgini and Bugatti.

The company's motors have proven themselves to be very positive. They have a long service life and are reliable. And even if the power unit has been repaired, it will serve the owner for a long time. The Volkswagen engine is the standard of German automotive quality.

The German concern Volkswagen Group (VW Group) is one of the most famous European car manufacturers. It also produces Volkswagen engines.

The concern owes its origins to Adolf Hitler, who in the fall of 1933 instructed representatives of Daimler-Benz and Dr. Ing. h.c. F. Porsche GmbH to create a reliable car that costs no more than 1,000 Reichsmarks. Moreover, it had to be produced at a new automobile plant, which would personify the growing power of Germany. Construction of the plant began in 1938, and already in 1939 test samples of the new car were produced.

During its existence, the concern has produced a huge number of a wide variety of vehicles. One of the most successful models is the VW Polo car (from 1975 to the present).

Initially, it was equipped with Volkswagen engines with cylinder displacements from 895 to 1272 cc. cm. Currently, the 5th generation of this model is being produced, and the line of power units has been replenished with more powerful 1.4 and 1.6-liter engines.

In addition, these cars are equipped with Volkswagen diesel engines. They were developed on the basis of the EA827 gasoline engine, various modifications of which were also installed on the Golf, Golf 2, and others.

INTERESTING. The VW Polo sedan became the first car in history designed specifically for Russia. Its production began in 2010 at the Volkswagen plant built in Kaluga.

The car is equipped with a gasoline engine of the EA111 series, the power of which is 105 hp. With. In addition, it is possible to install power units of the EA211 series with a capacity of 90 (CWVA) and 110 hp. With. (CWVB), as well as derated CFNB engines (EA111 series), with a power of 85 hp. With. and 3-cylinder Volkswagen diesel engines with a volume of 1.2 liters (factory designation CFWA) with a Common Rail fuel injection system. The power of the latter (VW 1.2 TDI) is 75 hp. With.

Of greatest interest is the base engine of the Volkswagen Polo (factory designation CFNA), which since 2015 has been produced at the Kaluga Gasoline Engine Plant (part of Volkswagen Group Rus).

CFNA Engine Specifications

PARAMETER	MEANING
Cylinder volume (working), cubic meters cm.	1598
Max, hp (at 5600 rpm)	105
Max torque, N.m (at 3750 rpm)	153
Number of cylinders	4
Number of valves per cylinder	4
Total number of valves	16
Cylinder diameter, mm	76.5
Piston stroke, mm	86.9
Fuel supply system	Multi-point injection MPI
Electronic engine control unit (ECU)	Magneti Marelli 7GV
Compression ratio	10,5:1
Type of fuel	AI-95
Fuel consumption, l/100 km (city/highway/mixed mode)	8,7/5,1/6,4
Lubrication system	Combined (pressure + spray)
Oil used	5W-30, 5W-40, 0W-40
Oil volume in the crankcase, l	3.6
Cooling system	Liquid, closed type, with forced ventilation
Coolant	Based on ethylene glycol, density 1.07-1.08 g/cm. cube
Motor resource, thousand km (factory/practice)	250/450+

The engine is installed on VW Polo Sedan, VW Jetta, Skoda Fabia, Skoda Octavia, Skoda Rapid, Skoda Roomster.

Description

The base engine of the Polo sedan (factory designation CFNA) is a conventional in-line 4-cylinder 16-valve engine with an overhead twin-shaft gas distribution mechanism (timing) DOHC 16V.

The cast cylinder block is made of aluminum alloy, with the cylinders bored directly into the body.

The crankshaft is made of high-strength cast iron. At the front there is a sprocket for the timing drive and oil pump. The auxiliary mechanism drive pulley is also located there.

The cylinder block is closed with an aluminum 16-valve head (cylinder head) with a timing belt, which includes two camshafts and hydraulic valve compensators.
The timing belt is driven by a maintenance-free steel chain, the resource of which covers the entire service life of the motor. There is no variable valve timing system on the intake shaft.
Structurally, the less powerful CFNB power unit is completely identical to the CFNA and differs from the latter only in the ECU firmware.

Distinctive features of CFN type motors:

The intake manifold is made of polymer fireproof material.
The air filter is installed on the cylinder head without any gaskets.
The valve timing is continuously variable on the intake valves.
Availability of forced ventilation of the oil pan.
The oil pump is equipped with an adjustable pressure sensor.

Service

Timely maintenance of the Volkswagen Polo sedan engine significantly extends its service life and allows it to be increased to 500 thousand kilometers.

Basically it comes down to regular computer diagnostics and replacement (after every 15 thousand km of travel):

motor oil;
oil filter;
oil pan plugs.

In addition, every 30,000 km it is recommended:

replace the air filter;
Pay attention to the spark plugs and replace them if necessary.

Malfunctions

With proper and regular maintenance, the service life of the Polo sedan engine is practically unlimited and can provide a mileage of about 400...500 thousand km. However, it is not free from common faults, which are most often eliminated by replacing faulty parts and components.

FAULTS	CAUSES
Throttle failure	The electrical wire of the throttle sensor is frayed.
Malfunctions associated with failure of the fuel injection system.	Poor quality fuel.
Characteristic knocking in the engine (frequent “clunking” in the cylinder head area).	The hydraulic valve compensators have failed due to: increased detonation in engine cylinders; lubrication system malfunctions; low-quality motor oil.
The forced crankcase ventilation system does not work.	The PCV valve has failed.

The CFNA power unit also has a number of design flaws that can ruin the mood of the car owner:

Tuning

The easiest way to increase the power of a CFNA engine to 130 hp. With.:

Purchase and install a new 4-2-1 catless exhaust manifold.
Organize a cold intake by removing the air filter to the maximum distance from the engine; replace the corrugated pipe from the air filter with a smooth one; when laying a smooth air path, remove it as much as possible from hot engine parts; ensure the shortest distance from the air filter to the intake manifold; use heat-resistant materials.
Replace the standard air filter with a zero-resistance filter.
Reflash and configure the ECU.

Achieving a more significant increase in the power of the CFNA engine is only possible by investing large amounts of money, which is not economically profitable - the cost of the cylinder head is comparable to the cost of the engine and amounts to more than $3,000. It’s easier to buy another Volkswagen with a 1.4 TSI engine (Golf, Golf 2, Audi, Skoda, etc.), with a power of 120 to 180 hp. With.