The motor belongs to the EA111 family of power units. For the first time these atmospherics began to be produced back in 2002, and their production continued until 2015. We will consider one of the latest developments of CGPA auto engineers. The power of the small-capacity engine is 60 – 75 hp. The first samples of the motor squeezed out only 54 hp.
Technical specifications
| Characteristics | Value |
|---|---|
| Exact volume | 1198 cm³ |
| Power system | Injector |
| Drive power | 70 hp |
| Torque | 112 Nm |
| Cylinder block | Aluminum R3 |
| Cylinder head | Aluminum 12v |
| Cylinder diameter | 76.5 mm |
| Piston stroke | 86.9 mm |
| Compression ratio | 10.5 |
| Drive Features | DOHC |
| Hydrocompensators | Yes |
| Transmission timing | Chain |
| Fasor regulator | No |
| Turbocharger | No |
| What oil to use | 2.8 liters 5W-30 |
| Ecological class | Euro 5 |
| Example service life | 240,000 km |
Which cars were equipped with the CGPA 1.2 MPi engine:
| Car | Years of manufacture |
|---|---|
| Seat Ibiza 4 (6J) | 2010 – 2015 |
| Skoda Fabia 2 (5J) | 2009 – 2014 |
| Skoda Roomster 1 (5J) | 2009 – 2015 |
| Volkswagen Polo 5 (6R) | 2010 – 2014 |
Low-power power unit was installed exclusively on small and compact models of Skoda brand – Roomster, Rapid (in Europe), VW Polo (V), Fabia(II), Seat Ibiza (IV), Toledo.
The compact engine has 3 cylinders and an alloy cylinder block, and the BC head accommodates 12 valves. The camshafts function thanks to a Morse gear chain. Under the crankshaft of the engine is a balancer shaft. These engines were in production until 2015.
Reliability of the 1.2 CGPA engine
Motor 1.2 CGPA (like its predecessors) is an ordinary engine. But that’s only at first glance. In reality, it is not so simple. For example, the balancer shaft: there is one. This is a very interesting solution, because, for example, Japanese automakers did not dare to such a luxurious solution for a 3-cylinder power unit. The timing chain (GRM) is great, but there is its short motor resource, and its maintenance requires additional time and effort.
Engine Vibrations
Happy owners of cars with this engine have to experience problems with vibration from time to time, and sometimes with cylinder deactivation. This circumstance is explained by three main reasons:
- clogged catalyst (due to the use of fuel of dubious quality);
- failure (“glitch”) of the lambda probe;
- exhaust valve burnout.
Lower support of the power unit
During operation and maintenance of this power unit, special attention should be paid to its lower support (in driver’s parlance – the lower “cushion” of the engine (6Q0 199 851 AJ)). It is a typical damper made of special rubber. Its distinctive feature is its short service life. After the “cushion” loses its antivibration properties, the engine sags and begins to sway in the longitudinal plane. It is especially noticeable at gear shifting, sharp acceleration and no less sharp braking. Soon in the work of the power unit begins to appear jolts.
Wear of the cushion on the right side of the engine leads to the fact that the power unit begins to tilt to the passenger (right) side.
Throttle plate
“Electrogas” is the electronically actuated throttle linkage of the engine. So it loves cleanliness and can not live in dirt. Due to the work of the crankcase ventilation system there is active and total contamination of the flap. And this – in turn – inevitably leads to interruptions in the engine idling, as well as inactive throttle response to the gas pedal (gas pedal).
Injector nozzles
The fuel injectors of the engine work quite well, but the efficiency of their work directly depends on the quality of the fuel consumed. In case of failure of one of the injectors it will be correct to monitor the condition of the wiring (“braid”), connecting the injectors to the ECU of the car. There are often cases when a trivial frayed wire is the main cause of power failure of an injector.
VAC valve
The VKG valve (crankcase ventilation system) of the engine under consideration is actually a “fungus”, consisting of an ordinary diaphragm pressed by a spring. Cracking of the diaphragm, its deformation, loose fit to the VKG valve body and other malfunctions lead to the beginning of air suction into the engine intake manifold. The result of such a nuisance will be uneven operation of the engine at the idling speed due to violations of principles and proportions in the preparation of seven air enriched with fuel.
Spark plugs. Ignition coil
The peculiarity of the 1200-milliliter motor is that it is served by individual ignition coils. If the powertrain becomes unstable on the CW, it is the coils – its tip insulator – that should be addressed.
It is necessary to be especially careful when dismantling coils: in the course of prolonged operation they stick to the seats (“sockets”), and during dismantling their housing may be subjected to mechanical damage. It is advisable to use a specialized removable device (“puller”) to remove the short circuit. The tool can be replaced with two plastic ties with evenly distributed pulling forces on the short-circuit.
It is recommended to replace spark plugs with new ones after 30 thousand kilometers of mileage. Faulty spark plugs can cause jerky movement of the car (especially when gaining speed).
Pompa
The pump (or engine cooling system pump) is driven by a belt drive. Plastic impeller is used even in the original part. The NSO is replaced when there is a backlash on the pulley of the unit or on the shaft.
Thermostat
As a rule, replacement of the thermostat for this engine is a common and quite frequent phenomenon. Most often, the node is jammed in the “open” position, so the power unit is not afraid of overheating. In the cold season, the engine for this reason will take a very long time to warm up, and the heater heater will weakly heat the air in the car cabin.
The timing chain
A timing chain is used in the timing mechanism of the engine. The chain is not identical to the drive of motors 1.2 MPI and 1.2 HPI, despite the similarity of power units.
The service life of the part is about 120 thousand kilometers, but minor and barely noticeable problems in its work begin to appear at 40-60 thousand miles. As a rule, the timing chain is stretched in the process of operation and shows it by rumbling at the moment of cold start of the power unit. In addition, there may be a slight decrease in the power characteristics of the car, as well as vibration and sound defects at a sharp change of speed modes. In addition, camshaft synchronization errors can also pop out.
Cars equipped with such a power unit, it is not recommended to leave the car in gear to avoid rolling of the vehicle. There is a probability of chain jump by a few teeth after starting the engine. The reason for this phenomenon is the lack of a locking ratchet on the hydraulic tensioner. When turning the chain and crankshaft counterclockwise, the unit is retracted, and the right branch of the chain, sagging, makes a jump, as a result of which the valves are bent under the influence of the pistons (due to a violation of the adjustment of the timing).
The cost of the original (“factory”) chain (03C109158A) of the timing unit is about 65 USD. When replacing it, you will also need to replace the tensioner (03E109507AE), which costs about 105 USD, as well as the front crankshaft oil seal (054115147B). The cost of the latter is in the neighborhood of 14 USD.
If the work of the chain has led to the dislocation of the guides, their replacement will cost within 55 USD (for 2 pcs.). Non-original parts of the assembly in a set can be purchased for 150 USD.
Do not forget about the need to buy sealant (for mounting the cover). Finally, it is advisable to combine the replacement of the chain with the replacement of the engine lubrication system.
GBZ
Burnout of valves (exhaust valves) takes place if the catalytic converter has failed or clogged. Gas exchange function in this case loses its efficiency, which leads to an increase in engine temperature in operating mode. As a result, the valves burn out.
Cylinder Block
The cylinder block of the engine under consideration has a light-alloy construction with cast iron liners placed in it. Motor life of the cylinder-piston group of the power unit has good characteristics. What a driver or car owner should not do is to economize on the quality and timing of oil change, poured into the engine lubrication system. The most optimal inter-service mileage for oil change is 7.5 thousand kilometers. Only 3.2 liters of quality branded oil should be stocked to replace the lubrication system.
If you pour in low-quality oil, there is an unpleasant prospect of seizure of piston rings and excessive oil consumption. In some cases there is an increase in compression inside the cylinders (due to soot appearing on the piston group).
Crankshaft supports should not be categorically unscrewed because of the risk of bed deformation. However, it has been proven by experience that the alignment of the bearings does not change when the liners are replaced.