Volkswagen AG 1.9 TD (AAZ) Engine Specs
Volkswagen AG
Quick overview
Volkswagen AG 1.9 TD (AAZ) is a 1.9L (1896 cc) diesel engine with 75 HP, 150 Nm, 22.5:1 compression ratio. Includes reliability notes, common problems and vehicle applications.
75
HP
1.9L (1896 cm³)
Displacement
150
Torque
Diesel
Fuel
Description
The AAZ is a 1.9-liter turbocharged diesel engine that preceded the TDI family. It uses indirect injection (IDI) with a distribution pump fuel system. Produced from 1991-1996, it was primarily used in VW Golf III, Passat B4, and Audi 80. This engine is often called "TD" rather than "TDI" due to its indirect injection technology.
General Information
Production Years:
1991–1996
Fuel Type:
Diesel
Power (HP):
75
Power (kW):
55
Displacement:
1.9L (1896 cm³) (115.7 cu.in)
Torque:
150 (111 lb-ft)
Cylinder Block Alloy:
Cast Iron
Cylinder Head Alloy:
Aluminum
Has Turbo:
Yes
Engine Layout:
I4
Aspiration Type:
Turbocharged
Fuel System:
Indirect Injection (IDI) with distribution pump
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:
165 kg (364 lbs)
Compression Ratio:
22.5:1
Hydraulic Lifters:
No
Maintenance
Oil Capacity:
4.3L (4.5 qts)
Recommended Oil:
VW 505.00 (15W-40)
Operating Temperature:
87-105°C (189-221°F)
Thermostat Temperature:
87°C (189°F)
Timing Belt/Chain Interval:
90,000 km