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COMPLETE ENGINE ： Engine Volkswagen CTHA
PRODUCT INTRODUCTION
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.
Specifications
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) |
10.1 |
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.