Volkswagen AG 1Z Engine Specs
Volkswagen AG
Quick overview
Volkswagen AG 1Z is a 1.9L (1896 cc) diesel engine with 90 HP, 202 Nm, 19.5:1 compression ratio. Typical service life: 400 000+ km.
90
HP
1.9L (1896 cm³)
Displacement
202
Torque
Diesel
Fuel
Description
The 1Z was one of the first true TDI (Turbo Direct Injection) engines, marking VW's transition to direct injection technology. With 90 hp and excellent reliability, it became the foundation for the entire 1.9 TDI family. Used primarily in Golf III, Passat B4, and Audi 80/A4.
General Information
Production Years:
1991–1996
Fuel Type:
Diesel
Power (HP):
90
Power (kW):
66
Displacement:
1.9L (1896 cm³) (115.7 cu.in)
Torque:
202 (149 lb-ft)
Cylinder Block Alloy:
Cast Iron
Cylinder Head Alloy:
Aluminum
Has Turbo:
Yes
Engine Layout:
I4
Aspiration Type:
Turbocharged
Fuel System:
Distribution pump (Bosch VP37)
Cylinders Count:
4
Technical Details
Cylinder Diameter:
79.5 mm
Piston Stroke:
95.5 mm
Total Valves:
8
Total Intake Valves:
4
Total Exhaust Valves:
4
Intake Valves per Cylinder:
1
Exhaust Valves per Cylinder:
1
Firing Order:
1-3-4-2
Weight:
170 kg (375 lbs)
Compression Ratio:
19.5:1
Hydraulic Lifters:
Yes
Maintenance
Oil Capacity:
4.3L (4.5 qts)
Recommended Oil:
VW 505.01 (5W-40)
Operating Temperature:
87-105°C (189-221°F)
Thermostat Temperature:
87°C (189°F)
Service Life (km):
400 000+ km (249-0 miles)
Timing Belt/Chain Interval:
90,000 km