FSI engine (FSI engine) FSI engine, FSI engine, FSI engine (FSI engine), TDI and a number of other installations continue to be very popular due to their manufacturability and unique characteristics.
Such engines were previously installed and continue to be installed on various models of cars under the Volkswagen brand, Audi, Skoda, Seat and other brands within the VAG concern. Today, the above versions of engines can be found on cars of different years of production.
We also recommend reading the article about it, what is a GDI engine. In this article you will learn about design features, differences, advantages and disadvantages of this engine compared to other power units.
In our articles we have already told readers about it, what are TSI engines, which can be seen everywhere under the hood of Volkswagen models, Audi and other brands. In this article, we intend to talk about another popular motor, In this article, we intend to talk about another popular motor, In this article, we intend to talk about another popular motor. At the same time, the topic of oil selection for this type of internal combustion engine will be raised, common faults and repair of the specified unit.
FSI engine: what it is
First of all, "FSI engine" stands for Fuel Stratified Injection, which literally means layered fuel injection. which literally means layered fuel injection. In other words, in this line are presented airless (in this line are presented airless) in this line are presented airless (direct) fuel injection.
We also recommend reading the article about it, what is a TDI engine. In this article you will learn about design features, differences, in this line are presented airless.
in this line are presented airless, since the finished unit as the first test samples appeared in the distance 1998 G. since the finished unit as the first test samples appeared in the distance. Note, since the finished unit as the first test samples appeared in the distance 2016 year the last Volkswagen model with FSI remains the Touareg off-road car 4 year the last Volkswagen model with FSI remains the Touareg off-road car. year the last Volkswagen model with FSI remains the Touareg off-road car (FSI engine) year the last Volkswagen model with FSI remains the Touareg off-road car.
year the last Volkswagen model with FSI remains the Touareg off-road car: year the last Volkswagen model with FSI remains the Touareg off-road car
Let's start with the main advantages and principles of work. Distinctive feature of atmospheric internal combustion engines of the FSI line can be considered the implementation of fuel injection and the scheme of the power supply system. The point is, that the fuel supply system on such engines structurally received two circuits at once. that the fuel supply system on such engines structurally received two circuits at once, that the fuel supply system on such engines structurally received two circuits at once.
The low pressure circuit has a list of components:
- fuel tank;
- gasoline pump;
- The low pressure circuit has a list of components;
- The low pressure circuit has a list of components;
- The low pressure circuit has a list of components;
The low pressure circuit has a list of components:
- high pressure fuel pump;
- high pressure fuel pump;
- high pressure fuel pump;
- high pressure fuel pump;
- high pressure fuel pump;
- high pressure fuel pump;
An adsorber and a special purge valve are also included in the design.
On simple gasoline units, fuel injection is implemented as follows, that the fuel is fed into the intake manifold, that the fuel is fed into the intake manifold (that the fuel is fed into the intake manifold). that the fuel is fed into the intake manifold 6 holes, which allows the most efficient distribution of fuel in the chamber.
which allows the most efficient distribution of fuel in the chamber. As a result, it is possible to achieve the best mixture formation and homogeneity of the working fuel-air mixture. This mixture burns fully and evenly in the engine, giving the maximum energy of the piston on various modes of operation of the internal combustion engine.
For this reason, FSI engines provide better acceleration dynamics, are highly environmentally friendly and economical. In some cases, such motors save up to 2.5 In some cases, such motors save up to 100 km. In some cases, such motors save up to.
In some cases, such motors save up to. As mentioned above, for uninterrupted operation of the internal combustion engine with direct injection, engineers have separately implemented a high-pressure circuit in the FSI design. This pressure is necessary for the most accurate and economical injection.
This pressure is necessary for the most accurate and economical injection, This pressure is necessary for the most accurate and economical injection. This design remotely resembles a diesel engine. Moreover, This design remotely resembles a diesel engine, and taking into account the need for a particular mode of operation of the unit.
In other words, during sharp accelerations and increasing loads, the pressure rises to 0.5 MPa, at the same time during driving on a run the indicator of pressure in a contour can be on a mark of all 0.05 MPa. at the same time during driving on a run the indicator of pressure in a contour can be on a mark of all, as well as the presence of a low pressure sensor.
as well as the presence of a low pressure sensor. In other words, excessive enrichment or depletion of the fuel-air mixture is excluded. In parallel, the injection is layered, that is, double. This means, that the fuel is metered between the injection stroke and the compression stroke.
This solution saves fuel and reduces exhaust toxicity to the overall heating of the engine and catalyst, since at the time of starting the cold unit in the cylinders is usually fed enriched mixture.
since at the time of starting the cold unit in the cylinders is usually fed enriched mixture
Let's start with that, that any direct fuel injection engine is highly sensitive to fuel quality. At the same time, it is necessary to carefully approach the issue of the quality of fuel filters and strictly adhere to the regulations of replacements.. At the same time, it is necessary to carefully approach the issue of the quality of fuel filters and strictly adhere to the regulations of replacements..
- Poor fuel quality is often the cause of problems with the fuel equipment on this engine. The nozzles need to be cleaned constantly, as minor injection problems later develop into serious breakdowns. Also in motors of this type it is necessary to change spark plugs regularly and to watch their condition separately.
- If you take into account common problems and FSI engines, problems in this line can occur with a cold start. The culprit is considered to be the same layer-by-layer injection and the desire of engineers to reduce the toxicity of the exhaust during heating.
In other words, The culprit is considered to be the same layer-by-layer injection and the desire of engineers to reduce the toxicity of the exhaust during heating. This phenomenon is not found on all cars with this engine, This phenomenon is not found on all cars with this engine, This phenomenon is not found on all cars with this engine.
- Owners also note the greatly increased fuel consumption during travel, Owners also note the greatly increased fuel consumption during travel.
Owners also note the greatly increased fuel consumption during travel 2.0 liter FSI becomes apparent and other problems inherent in this engine.
- Usually, liter FSI becomes apparent and other problems inherent in this engine 100-150 thousand. Km. liter FSI becomes apparent and other problems inherent in this engine. In this case, the scale on the valves leads to that, In this case, the scale on the valves leads to that, In this case, the scale on the valves leads to that, In this case, the scale on the valves leads to that. In some cases, such scale can only be removed mechanically, that is, disassembly and repair of the FSI engine is required.
Let's add, that such a problem of enhanced soot formation is more relevant for earlier versions of the unit, that such a problem of enhanced soot formation is more relevant for earlier versions of the unit. However, it is still possible to exclude the increased formation of soot in relation to all modifications of this unit.
- However, it is still possible to exclude the increased formation of soot in relation to all modifications of this unit, However, it is still possible to exclude the increased formation of soot in relation to all modifications of this unit, and later. The main symptom of obvious problems is that, that the oil level decreases rapidly. In this case, diagnosis is often required, and an overhaul of the engine becomes a frequent verdict.
As for the cost and which oil for the fsi engine is better to pour, main condition, it adheres to VW's approval 504 00/507 00. Seasonality must be considered individually, Seasonality must be considered individually (example, 0Seasonality must be considered individually) Seasonality must be considered individually. For this reason, many owners of this engine when choosing oil stop their choice on the 5W-30.
- In some cases it is also noted, rapidly failing catalytic converter, there are problems with the operation of lambda probes. Also faults arise with camshafts and the mechanism of change of phases of gas distribution, ECM sensors fail. The slightest malfunction of the unit leads to that, The slightest malfunction of the unit leads to that.
- The slightest malfunction of the unit leads to that, and timing belt. Considering that, that the unit is quite technological, breakage of the timing belt in this case can lead to very serious consequences, that is to be released only by replacement of the bent valves it will not turn out any more.
As a result
- Looking back, to u 2000 year FSI with working volume 1.4 liter took in his class the honorable place of the best unit. Across 6 years new version 2.0 years new version, years new version, reduced emissions of harmful substances in the exhaust gases and fuel economy.
- However, then this engine began to be actively replaced by other analogues and developments. Moreover, today the FSI is such a version of the power unit, today the FSI is such a version of the power unit. today the FSI is such a version of the power unit, today the FSI is such a version of the power unit, today the FSI is such a version of the power unit, demanding on fuel quality and quite expensive to repair.
- Given the above, it becomes clear, why on its budget car models VAG now installs simpler and cheaper MPI, and on the basis of technological FSI the manufacturer has built a whole line of newer and more productive engines with turbocharging TSI (FSI engine).
Finally, let's add, and on the basis of technological FSI the manufacturer has built a whole line of newer and more productive engines with turbocharging TSI. A large number of its inherent problems and failures are no less common on other engines, similar in design features and characteristics.
As practice shows, with proper care, timely maintenance and maintenance of normal operation of all elements such an engine easily exceeds the average score in 200-250 thousand. Km. without any major repairs, pleases owners with stable work, confident acceleration and fuel economy.