Engine specifications EA111
| Production | Mlada Boleslav Plant |
| Engine make | EA111 |
| Years of manufacture | 2009-2017 |
| Cylinder block material | aluminum |
| Power system | injector |
| Type | row |
| Number of cylinders | 4 |
| Valves per cylinder | 2 |
| Piston stroke, mm | 75.6 |
| Cylinder diameter, mm | 71 |
| Compression ratio | 10 |
| Engine displacement, cc | 1197 |
| Engine power, hp/rpm | 86/4800 90/4500 105/5000 |
| Torque, Nm/rpm | 160/1500-3500 160/1500-3500 175/1550-4100 |
| Environmental standards | Euro 5 |
| Engine weight, kg | – |
| Oil consumption, gr./1000 km | to 500 |
| How much oil in the engine | 3.8 |
| Oil change is carried out, km | 15000 (better 7500) |
| Engine operating temperature, deg. | ~90 |
| Engine life, thousand kilometers – according to the factory data – in practice |
– 250-300 |
| Tuning, hp. – potential – without loss of resource |
140+ n.d. |
| Motor installed | Audi A1 Audi A3 Seat Altea Seat Ibiza Seat Leon Seat Toledo Skoda Fabia Skoda Octavia Skoda Rapid Skoda Yeti Skoda Roomster Volkswagen Jetta Volkswagen Caddy Volkswagen Golf Volkswagen Beetle Volkswagen Polo |
Volkswagen-Audi EA111 1.2 TSI / TFSI engine reliability, problems and repairs
The junior powertrain of the EA111 series is a modified 1.4 TSI, where the cast iron cylinder block was replaced by an aluminum block with cast iron wet liners. The piston diameter has been reduced from 76.5mm to 71mm, the piston itself is lightweight, and a new crankshaft has been fitted.
To further emphasize the lows, the block was covered with a single-shaft 8-valve head, inlet/outlet valve diameter – 35.5/30 mm, with hydrocompensators, with direct fuel injection and without variable valve timing.
The timing system uses a chain. Similarly to the 1.4 TSI, the chain here also likes to stretch and jump, despite the claims that it is not necessary to maintain it.
All versions of 1.2 TSI are equipped with turbochargers IHI 1634, with a maximum pressure of 0.6 bar. The engine is controlled by Siemens Simos 10 ECU. On the inlet there is a manifold without flaps.
In general, this motor is nothing but a lightened and simplified on all fronts 1.4 TSI, with this and is associated with a reduced liter capacity. The motor weighs 24.5 kg less than the 1.4 liter.
The purpose of this engine is to replace the popular, long-in-production, 8-valve 1.6 liter motors.
In 2015, this motor was completely replaced by the upgraded 1.2 TSI series EA211, only the SEAT Ibiza was equipped with the 1.2 EA111 until 2017.
VW 1.2 TSI / TFSI engine modifications
- CBZA (2010 – 2015) – weak modification, with an output of 86 hp, was put on Audi A1, Volkswagen Golf 6.
- CBZB (2009 – 2015) – top version, 105 hp, for all other cars.
- CBZC (2011-2017) – 90 hp variation for Volkswagen Polo and SEAT Ibiza.
Problems of the VW 1.2 TSI
Weaknesses of this motor, repeat the big brother 1.4 TSI, here there is a problem with jumping of the timing chain (later eliminated), vibrations at idle, love of good oil and gasoline, etc. Also, this motor takes quite a while to warm up in cold weather.
Stretching the timing chain
The first years of release, the timing chain could be pulled out even at a mileage of 30 – 40 thousand kilometers. After modernization in 2011, its resource has increased, but still was lower than its analogues. Stretched chain often jumps, which is almost always fatal for the power unit.
Fast fouling
This engine cannot tolerate bad fuel or low octane gasoline, which leads to carbon deposits on the intake valves and injectors. Symptoms are unstable operation, floating revolutions, jerks, thrust failure.
Failure of the fuel injector
The smell of gasoline in the oil indicates that the high-pressure fuel pump has leaked. A sign of failure of the fuel pump is also a sign of poor starting of the car on cold.
Failure of the electric drive turbine
The electric actuator controlling the geometry and vestgate of the turbine has a low life. Many people encounter its failure before 100,000 km. It is good that it is changed separately.
Ignition misses
Power units of this series had numerous problems on the ignition system: oxidation of high-voltage wires, rapid failure of plugs and a single coil.
Oil cooler leaks
Due to the drying out of a small gasket between the cylinder block and the oil cooler, the unit can lose a significant amount of lubrication. The consequences can be very different.
Long warm-up in winter
On profile forums, owners of cars with this engine often complain about a very long warm-up in winter. It is impossible to do anything, it is such a peculiarity.
The reliability of the engine is average, when traveling in a quiet mode and regular maintenance, the resource of the engine 1.2 TSI about ~250.000 km. Accordingly, with increased loads, the engine life decreases.
Tuning engine Volkswagen-Audi 1.2 TSI / TFSI
Chip tuning
Tuning of such a power unit is carried out by the method of ordinary chip tuning. Well-known tuning offices offer their Stage 1 firmware for 86 hp and 105 hp engines. For a small amount of money you can rewire the motor in 130-145 hp and significantly change the dynamics of the car. This option is very good for such a working volume.
In addition to this, you can replace the catalytic converters for sports, put a cold intake. For the city in the very time.
ENGINE RATING: 4