1.9 TDI BXE Engine Specifications, Problems, Tuning

Volkswagen produced the 1.9 TDI BXE engine from 2005 to 2010. For some time, it was installed, for example, on VW Golf 5 station wagons. However, this engine can also be found in cars of other brands belonging to the same concern (in particular, in Skoda Octavia 2 and Audi A3).

BXE is a 1.9-liter turbocharged eight-valve internal combustion engine that runs on diesel fuel. The engine has 4 cylinders. They are made of durable gray cast iron and arranged in a row.

It should also be mentioned that this engine has a Common Rail high-pressure fuel injection system, and the timing drive here is a belt drive. In addition, the power supply system is presented here in the form of pump injectors (these two elements are combined into one – for diesel engines, such a decision is quite reasonable).

The compression ratio of the BXE engine is 18.5 (which is quite a lot), and the power is 105 hp.

Before overhaul, this engine can “run” 300,000 km without problems (and in fact much more).

Applicability of 1.9 TDI BXE engine

  • Audi : A3 (2006-2009)
  • Seat: Leon (2006-2010), Toledo (2006-2009), Altea (2006-2010)
  • Skoda : Octavia (2006-2010)
  • Volkswagen : Golf (2006-2008), Jetta (2006-2009), Touran (2006-2010), Passat (2006-2008)
1.9 TDI BXE Engine Specifications
Volume (cm3)1896
Power (hp)105
Torque250 Nm
Timing driveBelt
Environmental classEuro 3/4
Fuel typeDT
ICE featuresSOHC
Supply systemPump-Injectors
hydraulic liftersYes
Cylinder blockCast iron R4
cylinder headAluminum 8v
Cylinder diameter79.5 mm
piston stroke95.5 mm
Compression ratio18.5
Phase regulatorNo
Engine oil4.3 L 5W-30
Average resource275 000 km

Disadvantages and problems of the 1.9 TDI BXE engine

With a 1.9 TDI BXE engine, such a nuisance as a sudden loss of traction can occur. As a rule, this is due to malfunctions in the turbine. The reason may be that one of the moving parts of its “geometry” has jammed. Or that the tube connecting the vacuum regulator and the control valve has broken.

The weak link of this engine is also pump injectors. They are fixed in the cylinder head with just one bolt, and this definitely cannot be called a reliable mount. As a result, the pump-injector begins to “loose” as it were and at some point loses its tightness. There is a leak through which air enters this very pump. In addition, fuel begins to penetrate through the same leak and drip onto the cylinder.

Tuning prospects

Chip tuning for this engine is a reasonable option. In good workshops, BXE flashing can be done in just an hour. And as a result, the driver will really get an engine with much better performance than before.

Power in this case can increase by about 35 hp. And at the same time, the traction of the car will improve, the engine will become much faster and more clearly respond to commands.

If desired, BXE chip tuning can be supplemented by installing a downpipe instead of a catalyst. This will undoubtedly have a positive effect on the turbocharging parameters and give the internal combustion engine even more power.

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