Engine Opel Z19DTH

The 1.9-liter Opel Z19DTH or LRD diesel engine was produced from 2004 to 2010 at an enterprise in Germany and was installed on such concern models as Astra, Vectra and Zafira. This 16-valve engine was created by Fiat and was installed on Saab as the D207L.

The Z family also includes engines: Z13DTJ, Z13DTH, Z17DTH, Z19DT.

The engine was installed on:

  • Opel Astra H (A04) in 2004 – 2010;
  • Opel Signum A (Z03) in 2004 – 2008;
  • Opel Vectra C (Z02) in 2004 – 2008;
  • Opel Zafira B (A05) in 2005 – 2010.


Production years 2004-2010
Displacement, cc 1910
Fuel system Common Rail
Power output, hp 150
Torque output, Nm 320
Cylinder block cast iron R4
Block head aluminum 16v
Cylinder bore, mm 82
Piston stroke, mm 90.4
Compression ratio 17.5
Features intercooler
Hydraulic lifters yes
Timing drive belt
Phase regulator no
Turbocharging Garrett GT1749MV
Recommended engine oil 5W-40
Engine oil capacity, liter 4.5
Fuel type diesel
Euro standards EURO 4
Fuel consumption, L/100 km (for Opel Zafira 2006)
— city
— highway
— combined
Engine lifespan, km ~300 000
Weight, kg 185

Disadvantages of the Z19DTH engine

  • The weak point of this unit is the intake manifold swirl flaps;
  • They wear out quickly and start to close at random or fall off altogether;
  • There are few problems with the fuel system, often only the metering valve worries;
  • From pollution, the blades of changing the geometry of the turbine or the EGR valve can wedge;
  • In the area of the 4th cylinder, the exhaust manifold often cracks or deforms.

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