The 1.6-liter 8-valve Peugeot XU5JP or BFZ engine was manufactured between 1993 and 1999 and was fitted to several of the French company’s well-known models, including the 405 and 406. Simultaneously, a single-injection version of this engine was manufactured under the BDZ or XU5M index.

XU5JP, XU7JB, XU7JP, XU7JP4, XU10J2, and XU10J4R are engines belonging to the XU family.
Specifications
| Production years | 1993-1999 |
| Displacement, cc | 1580 |
| Fuel system | injector |
| Power output, hp | 88 |
| Torque output, Nm | 128 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 73 |
| Compression ratio | 9.25 |
| Features | no |
| Hydraulic lifters | no |
| Timing drive | toothed belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 4.8 |
| Fuel type | petrol |
| Euro standards | EURO 1/2 |
| Fuel consumption, L/100 km (for Peugeot 405 1995) — city — highway — combined |
9.8 5.8 6.8 |
| Engine lifespan, km | ~220 000 |
| Weight, kg | 110 |
The engine was installed on:
- Citroen Xantia in 1993 – 1997;
- Citroen ZX in 1993 – 1998;
- Peugeot 405 I (D6/D7) in 1993 – 1997;
- Peugeot 406 I (D8/D9) in 1995 – 1999.
Disadvantages of the XU5JP engine
This engine’s unstable performance in cold weather is a common complaint from car owners;
Oil drives through the dipstick and condensate frequently freezes in the crankcase ventilation tube;
Floating engine speeds are caused by the idle speed controller’s whims;
Candles and ignition coils rapidly fail due to poor fuel;
Typically, the timing belt is unable to surpass the manufacturer’s 120,000 kilometers;
Oil leaks typically originate from the crankshaft oil seal and the valve cover;
The valves must be adjusted separately because there are no hydraulic lifters in this area.
