What is the most reliable diesel engine for VW?
Volkswagen 1. L TDI (ALH) Why It’s Great: A legendary diesel known for simplicity, economy, and long life. The 2. TDI is considered the most reliable VW Transporter engine.The VW 1. TSI engine is generally reliable, particularly the EA211 version, which resolved some of the earlier issues found in the EA111 engines. However, regular maintenance is critical to prevent common issues like timing chain failure, oil consumption, and carbon build-up.