Produced between 2005 and 2010, the 1.9-liter Volkswagen BLS 1.9 TDI diesel engine was used in numerous VAG models, but it is most well-known for the Passat B6. The presence of a particulate filter was the main difference between this diesel engine and its BKC and BXE type analogues.
AJM, ASZ, AUY, AVB, AVF, AWX, AXB, AXC, BKC, BLS, and BXE are also included in the EA188-1.9 series.
Specifications
| Production years | 2005-2010 |
| Displacement, cc | 1896 |
| Fuel system | unit-injectors |
| Power output, hp | 105 |
| Torque output, Nm | 250 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 79.5 |
| Piston stroke, mm | 95.5 |
| Compression ratio | 19.0 |
| Features | SOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | yes |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 4.3 |
| Fuel type | diesel |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Volkswagen Passat 2007) — city — highway — combined |
7.5 4.4 5.8 |
| Engine lifespan, km | ~300 000 |
The engine was installed on:
- Audi A3 2 (8P) in 2005 – 2009;
- Seat Altea 1 (5P) in 2005 – 2010;
- Seat Leon 2 (1P) in 2005 – 2010;
- Seat Toledo 3 (5P) in 2005 – 2009;
- Skoda Fabia 2 (5J) in 2007 – 2010;
- Skoda Octavia 2 (1Z) in 2005 – 2010;
- Skoda Superb 2 (3T) in 2008 – 2010;
- Volkswagen Caddy 3 (2K) in 2005 – 2010;
- Volkswagen Golf 5 (1K) in 2005 – 2008;
- Volkswagen Golf Plus 1 (5M) in 2005 – 2008;
- Volkswagen Jetta 5 (1K) in 2005 – 2007;
- Volkswagen Passat B6 (3C) in 2005 – 2008;
- Volkswagen Touran 1 (1T) in 2005 – 2010.
Disadvantages of the VW BLS engine
These are very dependable devices, and issues only arise with high mileage.
Over time, the unit injectors become less tight due to the single bolt fastening.
The most common cause of thrust failures is a jammed turbine geometry.
A clogged particulate filter is frequently another factor contributing to unstable engine operation.
Wear of the hydraulic lifters and camshaft cams results from oil conservation.