The 2.2-liter Peugeot EW12J4 or 3FZ engine was produced from 1999 to 2009 in France and was installed on popular mid-size concern models such as 406, 407, 607 or 807. There was a modification of this engine with a higher compression ratio EW12E4 or 3FY.
EW family: EW7J4, EW7A, EW10J4, EW10D, EW10A, EW12J4.
Specifications
| Production years | 1999-2009 |
| Displacement, cc | 2231 |
| Fuel system | injector |
| Power output, hp | 158 – 163 |
| Torque output, Nm | 215 – 220 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 96 |
| Compression ratio | 10.8 – 11.0 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | at the intake |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 5.0 |
| Fuel type | petrol |
| Euro standards | EURO 3/4 |
| Fuel consumption, L/100 km (for Peugeot 607 2002) — city — highway — combined |
12.5 7.2 9.1 |
| Engine lifespan, km | ~275 000 |
| Weight, kg | 150 |
The engine was installed on:
- Citroen C8 I (V3) in 2002 – 2005;
- Peugeot 406 I (D8/D9) in 2001 – 2004;
- Peugeot 407 I (D2) in 2003 – 2009;
- Peugeot 607 I (Z8/Z9) in 1999 – 2008;
- Peugeot 807 I (V2) in 2002 – 2005.
Disadvantages of the EW12J4 engine
- This engine is structurally complex due to the use of two balancer shafts;
- Most often, owners complain about oil leaks from oil seals and valve covers;
- In second place are problems with the ignition system, as well as sensor glitches;
- At 50,000 km, the phase regulator may knock, at 100,000 km hydraulic lifters;
- The power unit is quite noisy, especially at idle.
Frequently asked questions about the Peugeot EW12J4
How much power does the Peugeot EW12J4 make?
The Peugeot EW12J4 develops 158 - 163 hp and 215 - 220 Nm of torque.
How much oil does the Peugeot EW12J4 take and which one?
Engine oil capacity: 5.0 liters. Recommended oil: 5W-40.
Does the Peugeot EW12J4 have a timing belt or chain?
The Peugeot EW12J4 uses a timing belt.
Is the Peugeot EW12J4 turbocharged?
No, the Peugeot EW12J4 is naturally aspirated.
Does the Peugeot EW12J4 need valve clearance adjustment?
No, the Peugeot EW12J4 has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Peugeot EW12J4 last?
The typical lifespan of the Peugeot EW12J4 is ~275 000 km with proper maintenance.
What is the fuel consumption of the Peugeot EW12J4?
Peugeot 607 2002: city 12.5, highway 7.2, combined 9.1 L/100 km.
What cars was the Peugeot EW12J4 installed on?
Citroen C8 I (V3) in 2002 - 2005; Peugeot 406 I (D8/D9) in 2001 - 2004; Peugeot 407 I (D2) in 2003 - 2009; Peugeot 607 I (Z8/Z9) in 1999 - 2008; Peugeot 807 I (V2) in 2002 - 2005.
What are the common problems of the Peugeot EW12J4?
This engine is structurally complex due to the use of two balancer shafts. Most often, owners complain about oil leaks from oil seals and valve covers. All known problems.
