Audi A4 2.0fsi ALT engine
R16,500.00
The Audi ALT engine is a 2.0-litre, naturally aspirated inline-four petrol engine that was primarily used in the Audi A4 (B6 and B7 generations) from 2000 to 2008. Unlike many other Audi 2.0L engines of that era, the standard ALT is non-turbocharged and features a 20-valve cylinder head (5 valves per cylinder).
Key Specifications
The ALT engine is designed for a balance of smooth daily driving and efficiency rather than high performance.
- Engine Type: Inline-four, DOHC, 20-Valve (5 valves per cylinder).
- Displacement: 1,984 cc (2.0L).
- Aspiration: Naturally Aspirated (non-turbo).
- Power Output: Approximately 130 hp (96 kW) at 5700 rpm.
- Max Torque: Approximately 195 Nm at 3300 rpm.
- Fuel System: Multi-Point Fuel Injection (MPFI) or early FSI variants depending on the specific model year and region.
Common Applications
The engine was a popular choice for executive compact cars due to its reliable, stable power delivery.
- Audi A4 (B6): 2000–2004.
- Audi A4 (B7): 2004–2008.
- Audi A6 (C5/C6): Used in some markets for entry-level models.
- VW Passat (B5.5): Shared across certain Volkswagen Group platforms.
Reliability and Known Issues
While generally considered a “bulletproof” base when maintained, the ALT engine has specific known tendencies:
- High Oil Consumption: This is the most frequently reported issue, often requiring regular top-ups between service intervals.
- Coolant & Thermostat Issues: Potential for thermostat failure or water leaks, which can lead to overheating if not monitored.
- Variable Valve Timing (VVT) Rattles: The cam chain tensioner at the back of the head can wear over time, causing a “diesel-like” rattling sound on cold starts.
- Engine Control Relay: Faulty relays can sometimes cause the engine to stop unexpectedly or fail to start.