Audi, a German automobil, has always been famous for its powerful and economical engines, which combined excellent efficiency and ensured proper dynamics for the car. Audi diesel engines are especially popular, which at one time were record-breaking in terms of efficiency. One of the most common and popular is the Audi 1.9D engine, which was installed on cars from 1989 to 1993.
Specifications
Audi 1.9D engines under the 1Y index have the following characteristics:
| PARAMETERS | VALUE |
|---|---|
| Years of release | 1989 - 1991 |
| Weight | N. d. |
| Cylinder block material | Cast iron |
| Motor power system | Injection |
| Type of arrangement of cylinders | In a row |
| Engine displacement | 1.9 liters |
| Engine power | 67 l. from. |
| Number of cylinders | Four |
| Number of valves | Two |
| Piston stroke | 95.5 mm |
| Bore | 79 mm |
| Compression ratio | Nineteen |
| Torque, Nm / rpm | 127/2200 |
| Environmental standards | n d. |
| Fuel | Diesel |
| Fuel consumption | 5.6 l / 100 km |
| Oil Type | 5W-30 |
| Crankcase Oil Volume | 4.30 liters |
| When replacing pour | 4 liters |
| Oil change is carried out | Every 10.000 Km |
| Motor resource | |
| - according to the factory | 250 |
| - on practice | 500 |
The engine is mounted on a Volkswagen Passat B3, Volkswagen Golf 2 and Audi 80.
A car with an Audi engine consumed an average of 5.6 liters of diesel. At the same time, due to the excellent traction from the bottom, the car was notable for good dynamics, and the car owner did not experience any lack of traction in a wide speed range.
The engine has indirect fuel injection and an OHC gas distribution system, which allowed to improve power characteristics and eliminated pronounced detonation and vibration at idle.
Note the lack of boost, which significantly increases the engine life of Audi engines. However, later Audi and most other automakers abandoned the idea of producing naturally aspirated diesel engines. However, according to car owners, there is no shortage of power and traction for this car with an atmospheric diesel power unit. With a 1.9D engine, the Audi 80 accelerates to hundreds in 16 seconds, which is a good indicator for that time.
If we talk about the reliability of the Audi engine, then, without exception, all car owners respond positively to this engine. Subsequently, in the development of next-generation Audi diesel engines, most of the components and developments from this model were used, actually supplying this motor with a turbine and changing a number of components. Not uncommon instances of the Audi 80 with a 1.9D engine, which ran 500-800 thousand kilometers without major repairs. And with a quality overhaul, Audi engines can go up to a million kilometers.
The cast iron alloy used is characterized by high strength and resistance to temperature deformations. Therefore, problems with overheating in this motor are extremely rare.
Only in cases where car owners do not notice the existing problems with the cooling system and for a long time operate the engine under conditions of constant overheating, warping of the cylinder head can be noted, which leads to the need to replace this unit. That is why we recommend regularly replacing antifreeze, inspect the condition of all elements of the cooling system.
Problems And Malfunctions
| FAULT | CAUSE |
|---|---|
| The motor has lost most of its power and does not respond well to pressing the gas pedal. | There may be several reasons for this behavior of the motor. First of all, it is necessary to check the condition of the fuel filter and the fuel pump. Often, due to the use of low-quality fuel, the filter is clogged, and the pump cannot push it, providing the necessary pressure in the system. In some cases, it is required to open the motor and carry out its overhaul. |
| Strong vibration at idle is noted. | The reason for this is damaged engine mountings, which eventually lose their strength and the engine starts to walk on the airbags. Repair in this case consists in replacing damaged pillows. You can perform this work on a special stand by lifting the engine in the engine compartment. |
| The engine is all in oil, the corresponding indicator is on. | The weak point of this motor is the valve cover gasket, which usually withstands 20,000 kilometers of power. After that, a noticeable leak appears through which the motor quickly expels oil. Repair consists in replacing the valve cover head and the corresponding oil change in the motor. Only in rare cases is there thermal overheating of the engine when cracks appear in the cylinder head. In the presence of such damage, you should still replace the cylinder head, which leads to significant costs for the car owner. |
| Significantly increased fuel consumption. | The reason may be incorrect operation of the injection system, or errors in the engine control unit, which prepares an excessively enriched mixture. In any case, it will be necessary to conduct high-quality diagnostics, open the motor and inspect the condition of the engine. |
Maintenance
The 1.9D engine from Audi, despite the use of numerous electronic systems, is still quite reliable and easy to use.
Its repair and maintenance is not difficult. Moreover, most of the service work can be done independently, saving on the use of the services of professional masters.
It is only necessary to remember the presence of a timing belt drive, which forced every 50 thousand kilometers to undergo appropriate maintenance work, changing the rollers and belt. Such work was carried out using special equipment that allowed you to set gaps. It will be difficult to independently carry out such a replacement of the timing without the use of appropriate equipment.
If we talk about service activities, we note the need for an oil change every 10,000 kilometers. Otherwise, there were problems with the rings, and the motor began to smoke mercilessly.
Tuning
Increasing the power of this power unit is not particularly difficult, so many car owners decide to perform tuning:
The easiest and most effective way to increase engine power is to install turbines on it from the next generation 1.9 TDI engine. It is only necessary to mount the turbine, replace the oil pump and the engine control unit. Such work will allow you to get about 30 additional horsepower. Of the advantages of this tuning option, we can note the complete preservation of the engine resource, therefore, such charged motors are able to run about 500 thousand kilometers without requiring major repairs.
Deep engineering tuning involves the simultaneous installation of a turbine, as well as the replacement of pistons, crankshaft, flywheel and other engine power elements. As a result, such a motor is capable of developing about 150 horsepower. However, it should be borne in mind that such tuning negatively affects the engine life of Audi engines, which may require major repairs after 200 thousand kilometers.
And the so-called light tuning option is also possible, when the air filter is replaced, the engine control unit is replaced and the exhaust system is changed. In this case, the car owner, depending on the exhaust systems used, can get from 15 to 25 horsepower. Replaceable parts are not too expensive, and all the work can be done independently.
Conclusions
This simple enough naturally aspirated diesel engine has a power of 67 horsepower, which is enough for an Audi 80 so small in size.
At the same time, the indicator of fuel consumption in the combined cycle was at one time one of the best among popular cars.
