The 2.2-liter Audi 2.2 KU gasoline engine was produced by the concern from 1984 to 1990 and was installed on the popular 100 C3 model in the 44th body. This motor was equipped with a rather difficult to maintain K-Jetronic mechanical injection.
EA828 family: RT, KU, NF, NG, AAR, AAN.
Specifications
| Production years | 1984-1990 |
| Displacement, cc | 2226 |
| Fuel system | K-Jetronic |
| Power output, hp | 138 |
| Torque output, Nm | 188 |
| Cylinder block | cast iron R5 |
| Block head | aluminum 10v |
| Cylinder bore, mm | 81 |
| Piston stroke, mm | 86.4 |
| Compression ratio | 10.0 |
| Features | SOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 4.5 |
| Fuel type | petrol |
| Euro standards | EURO 1 |
| Fuel consumption, L/100 km (for Audi 100 C3 1985) — city — highway — combined |
12.1 7.6 8.8 |
| Engine lifespan, km | ~350 000 |
The engine was installed on:
- Audi 100 C3 (44) in 1984 – 1990.
Disadvantages of the Audi KU engine
- The main problems for the owner are delivered by the K-Jetronic mechanical injection system.
- The reason for floating speed is usually a broken throttle diaphragm or a dirty idle valve.
- The fuel pump does not tolerate dirt and long driving with an almost empty tank.
- Also, some components of the ignition system have low reliability.
- At high mileage, hydraulic lifters often fail and start knocking.
Frequently asked questions about the Audi KU
How much power does the Audi KU make?
The Audi KU develops 138 hp and 188 Nm of torque.
How much oil does the Audi KU take and which one?
Engine oil capacity: 4.5 liters. Recommended oil: 5W-40.
Does the Audi KU have a timing belt or chain?
The Audi KU uses a timing belt.
Is the Audi KU turbocharged?
No, the Audi KU is naturally aspirated.
Does the Audi KU need valve clearance adjustment?
No, the Audi KU has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Audi KU last?
The typical lifespan of the Audi KU is ~350 000 km with proper maintenance.
What is the fuel consumption of the Audi KU?
Audi 100 C3 1985: city 12.1, highway 7.6, combined 8.8 L/100 km.
What cars was the Audi KU installed on?
Audi 100 C3 (44) in 1984 - 1990.
What are the common problems of the Audi KU?
The main problems for the owner are delivered by the K-Jetronic mechanical injection system. The reason for floating speed is usually a broken throttle diaphragm or a dirty idle valve. All known problems.
