Audi NG
Most of the problems of this unit are associated with the vagaries of the KE-III-Jetronic system.
Audi 90 engines
The Audi 90 is a German mid-size sedan by Audi AG. The model was produced from 1986 to 1991. The car is essentially a more prestigious version of the Audi 80 for high-margin buyers. The model is based on the updated B3 platform. A special feature of the car is a new aerodynamic body with a galvanized body that can resist corrosion. The Audi 90 is visually slightly different from the 80th model. The car has gained great popularity in the vastness of Russia and the CIS.
The Audi 90 was offered with 3 engines between 1987 and 1995 (2 petrol, 1 diesel). Displacement ranges from 1.6 to 2.8 liters, power output from 80 to 174 hp. All of them use a timing belt. 1 is turbocharged. The longest rated lifespan belongs to the Audi AAH (about 350,000 km).
Audi 90 engines by generation
| Engine | Years | Volume | Power | Fuel | Timing | Oil | Lifespan |
|---|---|---|---|---|---|---|---|
| Audi 90 B3 (8A) 1987–1991 | |||||||
| Audi NG | 1987–1991 | 2.3 L R5 | 133–136 hp | petrol | belt | 4.5 L | ~330,000 km |
| Volkswagen SB | 1989–1991 | 1.6 L R4 | 80 hp | diesel, turbo | belt | 4 L | ~330,000 km |
| Audi 90 B4 (8C) 1993–1995 | |||||||
| Audi AAH | 1993–1995 | 2.8 L V6 | 174 hp | petrol | belt | 5 L | ~350,000 km |
Audi 90 engine FAQ
What engines were used in the Audi 90?
Audi 90 B3 (8A) (1987–1991): Audi NG and Volkswagen SB; Audi 90 B4 (8C) (1993–1995): Audi AAH.
Which Audi 90 engine is the most durable?
By rated service life the most durable Audi 90 engines are: Audi AAH — about 350,000 km; Audi NG — about 330,000 km; Volkswagen SB — about 330,000 km. Actual lifespan depends heavily on maintenance and oil change intervals.
How much oil does the Audi 90 engine take?
Engine oil capacity with filter: Audi AAH — 5 L (5W-30); Audi NG — 4.5 L (5W-40); Volkswagen SB — 4 L (5W-40).
Does the Audi 90 have a timing belt or chain?
Timing belt: Audi AAH, Audi NG and Volkswagen SB. Belts must be replaced on schedule: on many engines a broken belt bends the valves.
Was the Audi 90 available with a diesel engine?
Yes: Volkswagen SB.
Engine details
Volkswagen SB
The most famous problem is cylinder head cracks, but you can ride with them for a long time.
Audi AAH
The main complaints of car owners with such an engine are related to oil consumption.
Models with the same engines
- Audi 80 3 shared engines
- Audi 100 1 shared engine
- Audi A4 1 shared engine
- Audi A6 1 shared engine
- Volkswagen Golf 1 shared engine
- Volkswagen Jetta/Bora/Vento 1 shared engine
- Volkswagen Passat 1 shared engine