The Mazda Z5-DE 1.5-liter gasoline engine was produced by the company from 1994 to 1998 and was installed on various models of the popular 323 family, Familia, Protege and Lantis in the BH body. There was a lean-burn version of this power unit under its own Z5-DEL index.
Z-engine family:
1.3 L – ZJ-VE;
1.5 L – Z5-DE, ZL-DE, ZL-VE, ZY-VE;
1.6 L – Z6, ZM-DE.
Specifications
| Production years | 1994-1998 |
| Displacement, cc | 1489 |
| Fuel system | distributed injection |
| Power output, hp | 90 – 110 |
| Torque output, Nm | 130 – 140 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 75.3 |
| Piston stroke, mm | 83.6 |
| Compression ratio | 9.0 – 9.5 |
| Features | DOHC |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.5 |
| Fuel type | petrol |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for Mazda 323 1997) — city — highway — combined |
9.5 6.2 7.8 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 128.7 |
The engine was installed on:
- Mazda 323 BH in 1994 – 1998;
- Mazda Familia BH in 1994 – 1998;
- Mazda Lantis CB in 1994 – 1998;
- Mazda Protege BH in 1994 – 1998.
Disadvantages of the Mazda Z5-DE engine
- This structurally simple and reliable motor has practically no weak points;
- The main problems are related to improper and untimely maintenance;
- On long runs, an oil burner occurs due to wear on the valve stem seals;
- The timing belt is designed for 60,000 km, but it runs longer and the valve does not bend when it breaks;
- Every 80 – 100 thousand km, valve adjustment is required, there are no hydraulic lifters.
Frequently asked questions about the Mazda Z5-DE
How much power does the Mazda Z5-DE make?
The Mazda Z5-DE develops 90 - 110 hp and 130 - 140 Nm of torque.
How much oil does the Mazda Z5-DE take and which one?
Engine oil capacity: 3.5 liters. Recommended oil: 5W-30.
Does the Mazda Z5-DE have a timing belt or chain?
The Mazda Z5-DE uses a timing belt.
Is the Mazda Z5-DE turbocharged?
No, the Mazda Z5-DE is naturally aspirated.
Does the Mazda Z5-DE need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Mazda Z5-DE last?
The typical lifespan of the Mazda Z5-DE is ~300 000 km with proper maintenance.
What is the fuel consumption of the Mazda Z5-DE?
Mazda 323 1997: city 9.5, highway 6.2, combined 7.8 L/100 km.
What cars was the Mazda Z5-DE installed on?
Mazda 323 BH in 1994 - 1998; Mazda Familia BH in 1994 - 1998; Mazda Lantis CB in 1994 - 1998; Mazda Protege BH in 1994 - 1998.
What are the common problems of the Mazda Z5-DE?
This structurally simple and reliable motor has practically no weak points. The main problems are related to improper and untimely maintenance. All known problems.
