VW CTHA engine
Content
The 1.4-liter turbocharged Volkswagen CTHA 1.4 TSI engine was assembled from 2010 to 2015 and put on a restyled version of the popular Tiguan crossover, as well as Sharan and Jetta. This unit belonged to the updated series and was significantly more reliable than its predecessors.
EA111-TSI includes: CAVD, CBZA, CBZB, BMY, BWK, CAVA, CAXA and CDGA.
Technical characteristics of the VW CTHA 1.4 TSI 150 hp engine.
| Exact volume | 1390 cm³ |
| Supply system | direct injection |
| Internal combustion engine power | 150 hp |
| Torque | 240 Nm |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Bore | 76.5 mm |
| Piston stroke | 75.6 mm |
| Compression ratio | 10 |
| Features of the internal combustion engine | DOHC |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | on the intake shaft |
| Turbocharging | KKK K03 and Eaton TVS |
| What kind of oil to pour | 3.6 liters 5W-30 |
| fuel type | AI-98 |
| Environmental class | EURO 5 |
| Approximate resource | 270 000 km |
The weight of the CTHA motor according to the catalog is 130 kg
The CTHA engine number is located at the junction of the block with the box
Fuel consumption Volkswagen 1.4 CTHA
On the example of a 2012 Volkswagen Tiguan with a manual transmission:
| City | 10.1 liters |
| Track | 6.7 liters |
| Mixed | 8.0 liters |
Similar motors from other manufacturers:
Which cars were equipped with the CTHA 1.4 TSI engine
| Jetta 6 (1B) | 2010 – 2015 |
| Sharan 2 (7N) | 2010 – 2015 |
| Tiguan 1 (5N) | 2011 – 2015 |
Disadvantages, breakdowns and problems of VW CTHA
The main problems of this engine are related to detonation due to fuel quality.
Often the pistons simply crack and then it is recommended to replace them with forged ones.
The unit is prone to carbon formation on the valves, which is why the compression drops.
The timing chain has a modest resource, it can stretch up to 100 thousand km
Often the electronic control valve fails and a little less often the wastegate of the turbine
Even on the forums, many complain about frequent leaks of antifreeze in the intercooler area
