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.
The EA111-TSI series includes: CBZA, CBZB, BMY, BWK, CAVA, CAVD, CAXA, CDGA, CTHA.
|Fuel system||direct injection|
|Power output, hp||150|
|Torque output, Nm||240|
|Cylinder block||cast iron R4|
|Block head||aluminum 16v|
|Cylinder bore, mm||76.5|
|Piston stroke, mm||75.6|
|Phase regulator||on the intake shaft|
|Turbocharging||KKK K03 & Eaton TVS|
|Recommended engine oil||5W-30|
|Engine oil capacity, liter||3.6|
|Euro standards||EURO 5|
|Fuel consumption, L/100 km (for VW Tiguan 2012)
|Engine lifespan, km||~270 000|
The engine was installed on:
- Volkswagen Jetta 6 (1B) in 2010 – 2015;
- Volkswagen Sharan 2 (7N) in 2010 – 2015;
- Volkswagen Tiguan 1 (5N) in 2011 – 2015.
Disadvantages of the VW CTHA engine
- 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 specialized forums, many complain about frequent antifreeze leaks in the intercooler area.