The 1.6-liter Peugeot EP6FADTX engine was produced at the Duvrin plant from 2017 to 2022 and was installed on models such as 308, 508, DS7, DS9 in combination with an 8-speed ATN8 automatic transmission. There were two different versions of such a unit: 5GC for DS cars and 5GG for Peugeot.
4th gen Prince family: EP6FADTX, EP6FADTXD, EP6FADTR.
Specifications
| Production years | 2017-2022 |
| Displacement, cc | 1598 |
| Fuel system | direct injection |
| Power output, hp | 225 |
| Torque output, Nm | 300 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 77 |
| Piston stroke, mm | 85.8 |
| Compression ratio | 10.2 |
| Features | Valvetronic |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | yes |
| Turbocharging | BorgWarner K03 |
| Recommended engine oil | 0W-30 |
| Engine oil capacity, liter | 4.25 |
| Fuel type | petrol |
| Euro standards | EURO 6d |
| Fuel consumption, L/100 km (for Peugeot 508 2020) — city — highway — combined |
7.6 4.6 5.6 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 138 |
The engine was installed on:
- DS DS7 I (X74) in 2017 – 2021;
- DS DS9 I (X83) in 2020 – 2022;
- Peugeot 308 II (T9) in 2017 – 2019;
- Peugeot 508 II (R8) in 2018 – 2021.
Disadvantages of the EP6FADTX engine
- On specialized forums, there are complaints only about replacing the wiring harness and fuel pump under warranty.
- Due to the aggressive operation of the Start-Stop system, the chain can stretch up to 100,000 km.
- The fuel injection here is only direct and the intake valves are quickly overgrown with soot.
- Other engine problems are related to electrical failures and are treated with firmware.
Frequently asked questions about the Peugeot EP6FADTX
How much power does the Peugeot EP6FADTX make?
The Peugeot EP6FADTX develops 225 hp and 300 Nm of torque.
How much oil does the Peugeot EP6FADTX take and which one?
Engine oil capacity: 4.25 liters. Recommended oil: 0W-30.
Does the Peugeot EP6FADTX have a timing belt or chain?
The Peugeot EP6FADTX uses a timing chain.
Is the Peugeot EP6FADTX turbocharged?
Yes, the Peugeot EP6FADTX is turbocharged (BorgWarner K03).
Does the Peugeot EP6FADTX need valve clearance adjustment?
No, the Peugeot EP6FADTX has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Peugeot EP6FADTX last?
The typical lifespan of the Peugeot EP6FADTX is ~250 000 km with proper maintenance.
What is the fuel consumption of the Peugeot EP6FADTX?
Peugeot 508 2020: city 7.6, highway 4.6, combined 5.6 L/100 km.
What cars was the Peugeot EP6FADTX installed on?
DS DS7 I (X74) in 2017 - 2021; DS DS9 I (X83) in 2020 - 2022; Peugeot 308 II (T9) in 2017 - 2019; Peugeot 508 II (R8) in 2018 - 2021.
What are the common problems of the Peugeot EP6FADTX?
On specialized forums, there are complaints only about replacing the wiring harness and fuel pump under warranty. Due to the aggressive operation of the Start-Stop system, the chain can stretch up to 100,000 km. All known problems.





