Engine Ford RFN/RFM

The 1.8-liter Ford RFN, RFM or 1.8 Endura DE engine was produced from 1993 to 2000 and was installed in the first two generations of the very popular Mondeo model. This power unit had a bad reputation primarily because of its low reliability.

The Endura-DE line also includes internal combustion engines: RTK, RVA and RFA.

The engine was installed on:

  • Ford Mondeo Mk1 in 1993 – 1996;
  • Ford Mondeo Mk2 in 1996 – 2000.


Production years 1993-2000
Displacement, cc 1753
Fuel system vortex chamber
Power output, hp 90
Torque output, Nm 178
Cylinder block cast iron R4
Block head cast iron 8v
Cylinder bore, mm 82.5
Piston stroke, mm 82
Compression ratio 21.5
Features intercooler
Hydraulic lifters no
Timing drive belt
Phase regulator no
Turbocharging yes
Recommended engine oil 5W-40
Engine oil capacity, liter 5.1
Fuel type diesel
Euro standards EURO 1/2
Fuel consumption, L/100 km (for Ford Mondeo 1999)
— city
— highway
— combined
Engine lifespan, km ~200 000

Disadvantages of the Ford RFN/RFM engine

  • The main problem is the short resource of the timing belt, and its breakage is fatal for the engine;
  • This diesel does not like low temperatures and in severe frost the car will not start at all;
  • Also, many faced premature wear of the rings in the fourth cylinder;
  • Oil leaks also occur, especially at the junction of the upper and lower parts of the cylinder block;
  • The only plus of the motor is that it is not very picky about the quality of diesel fuel.

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