Engine Volkswagen CTHA

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.


Production years 2010-2015
Displacement, cc 1390
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
Compression ratio 10.0
Features DOHC
Hydraulic lifters yes
Timing drive chain
Phase regulator on the intake shaft
Turbocharging KKK K03 & Eaton TVS
Recommended engine oil 5W-30
Engine oil capacity, liter 3.6
Fuel type petrol
Euro standards EURO 5
Fuel consumption, L/100 km (for VW Tiguan 2012)
— city
— highway
— combined
Engine lifespan, km ~270 000
Weight, kg 130

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.

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