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.
Z diesel family: Z13DTJ, Z13DTH, Z17DTH, Z19DT, Z19DTH.
Specifications
| 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 |
7.8 5.3 6.2 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 185 |
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.
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.
Frequently asked questions about the Opel Z19DTH
How much power does the Opel Z19DTH make?
The Opel Z19DTH develops 150 hp and 320 Nm of torque.
How much oil does the Opel Z19DTH take and which one?
Engine oil capacity: 4.5 liters. Recommended oil: 5W-40.
Does the Opel Z19DTH have a timing belt or chain?
The Opel Z19DTH uses a timing belt.
Is the Opel Z19DTH turbocharged?
Yes, the Opel Z19DTH is turbocharged (Garrett GT1749MV).
Does the Opel Z19DTH need valve clearance adjustment?
No, the Opel Z19DTH has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Opel Z19DTH last?
The typical lifespan of the Opel Z19DTH is ~300 000 km with proper maintenance.
What is the fuel consumption of the Opel Z19DTH?
Opel Zafira 2006: city 7.8, highway 5.3, combined 6.2 L/100 km.
What cars was the Opel Z19DTH 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.
What are the common problems of the Opel Z19DTH?
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. All known problems.
