Engine Ford HWDA

The 1.6 liter Ford HWDA or 1.6 Duratec Sigma engine was assembled in Wales from 2003 to 2008 and fitted to the second generation Focus, C-MAX and Volvo as the B4164S3. This unit was distinguished from a similar engine under the SHDA index by a closed cooling jacket.

The engine was installed on:

  • Ford C-Max Mk1 in 2003 – 2007;
  • Ford Focus Mk2 in 2004 – 2008.


Manufacturer Bridgend Engine
Production years 2003-2008
Displacement, cc 1596
Fuel system injector
Power output, hp 100
Torque output, Nm 150
Cylinder block aluminum R4
Block head aluminum 16v
Cylinder bore, mm 79
Piston stroke, mm 81.4
Compression ratio 11
Features DOHC
Hydraulic lifters no
Timing drive belt
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 4.1
Fuel type petrol
Euro standards EURO 4
Fuel consumption, L/100 km (for Ford Focus 2005)
— city
— highway
— combined
Engine lifespan, km ~320 000
Weight, kg 92

Disadvantages of the HWDA engine

  • Power units of the Duratec series are quite reliable, but do not tolerate bad fuel;
  • From low-quality gasoline, candles last very long, sometimes no more than 10,000 km;
  • Exactly for the same reason, an expensive gasoline pump often fails here;
  • In European modifications of Duratec engines with a broken timing belt, the valve bends;
  • There are no hydraulic lifters here and every 100,000 km the valve will have to be adjusted.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top