Engine Peugeot DW12BTED4

The 2.2-liter Peugeot DW12BTED4 or DW12B engine was assembled by the company from 2006 to 2010 and installed on the most prestigious models of the French concern, such as 407, 607 or 807. There were four versions of this Bi-Turbo diesel: 4HP, 4HT for manual transmission and 4HR, 4HS for automatic transmission.

The DW12 line includes: DW12TED4, DW12BTED4, DW12CTED4, DW12MTED4, DW12UTED.

The engine was installed on:

  • Peugeot 407 I (D2) in 2006 – 2010;
  • Peugeot 607 I (Z8/Z9) in 2006 – 2010;
  • Peugeot 807 I (V2) in 2006 – 2010;
  • Citroen C5 I (X3/X4) in 2006 – 2008; C5 II (X7) in 2008 – 2009;
  • Citroen C6 I (X6) in 2006 – 2010;
  • Citroen C8 I (V3) in 2006 – 2010;
  • Fiat Ulysse II (179) in 2008 – 2010;
  • Lancia Phedra I (179) in 2008 – 2010.

Specifications

Production years 2006-2010
Displacement, cc 2179
Fuel system Common Rail
Power output, hp 163 – 170
Torque output, Nm 370
Cylinder block cast iron R4
Block head aluminum 16v
Cylinder bore, mm 85
Piston stroke, mm 96
Compression ratio 16.6
Features DOHC
Hydraulic lifters yes
Timing drive chain & belt
Phase regulator no
Turbocharging Garrett DSGT12-14Z
Recommended engine oil 5W-30
Engine oil capacity, liter 5.25
Fuel type diesel
Euro standards EURO 4/5
Fuel consumption, L/100 km (for Peugeot 407 2009)
— city
— highway
— combined
8.1
5.0
6.1
Engine lifespan, km ~300 000
Weight, kg 215

Disadvantages of the DW12BTED4 engine

  • The greatest number of problems for the owner is the clogging of the particulate filter;
  • In second place in popularity are frequent errors of underblowing or overblowing turbines;
  • Many delay replacing an expensive fuel filter and spoil the injectors;
  • In addition, piezo injectors often break during dismantling and need to be drilled out.

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