The 2.0-liter turbo engine Opel Z20LET or L70 was produced from 2000 to 2005 in Germany and was installed on the Speedster sports car and OPC versions of such popular models as Astra, Zafira. After the 2005 update, the motor was divided into three modifications: Z20LEL, Z20LER and Z20LEH.
Z family: Z20LET, Z22SE, Z22YH, Z24SED, Z28NET, Z32SE.
Specifications
| Production years | 2000-2005 |
| Displacement, cc | 1998 |
| Fuel system | distributed injection |
| Power output, hp | 190 – 200 |
| Torque output, Nm | 250 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 86 |
| Compression ratio | 8.8 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | yes |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.25 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Opel Astra OPC 2004) — city — highway — combined |
12.5 6.8 8.9 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 160 |
The engine was installed on:
- Opel Astra G (T98) in 2000 – 2005;
- Opel Speedster A (E01) in 2003 – 2005;
- Opel Zafira A (T98) in 2001 – 2004.
Disadvantages of the Z20LET engine
- Oil seals are considered the weak point of the engine, they often have to be replaced;
- Also, the exhaust manifold regularly cracks here, but it can usually be welded;
- The timing belt is designed for a run of 60,000 kilometers, when it breaks, the valves bend 100%;
- Minor troubles include regular oil leaks from under the valve cover.
Frequently asked questions about the Opel Z20LET
How much power does the Opel Z20LET make?
The Opel Z20LET develops 190 - 200 hp and 250 Nm of torque.
How much oil does the Opel Z20LET take and which one?
Engine oil capacity: 4.25 liters. Recommended oil: 5W-30.
Does the Opel Z20LET have a timing belt or chain?
The Opel Z20LET uses a timing belt.
Is the Opel Z20LET turbocharged?
Yes, the Opel Z20LET is turbocharged.
Does the Opel Z20LET need valve clearance adjustment?
No, the Opel Z20LET has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Opel Z20LET last?
The typical lifespan of the Opel Z20LET is ~250 000 km with proper maintenance.
What is the fuel consumption of the Opel Z20LET?
Opel Astra OPC 2004: city 12.5, highway 6.8, combined 8.9 L/100 km.
What cars was the Opel Z20LET installed on?
Opel Astra G (T98) in 2000 - 2005; Opel Speedster A (E01) in 2003 - 2005; Opel Zafira A (T98) in 2001 - 2004.
What are the common problems of the Opel Z20LET?
Oil seals are considered the weak point of the engine, they often have to be replaced. Also, the exhaust manifold regularly cracks here, but it can usually be welded. All known problems.
