Peugeot · 308 (T9) · 2014-2018
Peugeot 308 1.6 BlueHDi 120 specs and common problems
The most popular diesel version of the Peugeot 308. It uses an AdBlue (SCR) system for Euro 6 compliance. AdBlue system faults and EAT6 gearbox maintenance are this model's best-known issues.
01 / 07
How much oil does the 308 1.6 BlueHDi 120 take?
The 308 1.6 BlueHDi 120 takes about 3.8 litres of 5W-30 engine oil including the filter. Approval to look for on the bottle: PSA B71 2290 / B71 2312.
- Approval
- PSA B71 2290 / B71 2312
- Alternative
- 0W-30
- Manual 6-speed
- 75W · ≈ 1.8 L
- Automatic EAT6
- Aisin AW-1 · ≈ 3.0 L (drain and fill)
- Coolant
- OAT 50/50 · ≈ 6 L
- Brake fluid
- DOT 4
02 / 07
Timing belt and maintenance
In practice 120,000 km / 6 years
Belt, tensioner and water pump are replaced together.
The water pump is driven by the timing belt, so it should be replaced at the same time.
- Oil change
- 10,000-15,000 km or once a year
- Glow plug
- 4 pcs · When they fail
- Valves / tappets
- Hydraulic tappets.
- Fuel filter
- 30,000 km
- Power
- 120 hp @ 3,750 rpm
- Torque
- 300 Nm @ 1,750 rpm
- Displacement
- 1,560 cc
- Fuel
- Diesel · Turbo, intercooler
- Valvetrain
- SOHC 8V
- Injection
- Common-rail direct injection
- Transmission
- 6-speed manual / 6-speed automatic (EAT6)
- Emissions
- Euro 6 (DPF + AdBlue)
03 / 07
Tyre size and pressure
- Original size
- 205/55 R16
- Alternative sizes
- 225/45 R17 · 225/40 R18
- Bolt pattern (PCD)
- 4x108
- Centre bore
- 65.1 mm
- Wheel
- 7J x 16 ET42
04 / 07
Is the 308 1.6 BlueHDi 120 suitable for LPG?
- Classic LPG conversions are not done on diesel engines.
05 / 07
308 1.6 BlueHDi 120 common problems and fixes
- #01
AdBlue system failure
High RiskAfter 60,000 km
- Symptom:
- 'Engine start will be prevented in X km' warning, AdBlue warning light.
- Cause:
- AdBlue pump, tank heater or NOx sensor failure; crystallised AdBlue.
- Proper fix:
- Depending on the fault codes, the pump/tank module or NOx sensor is replaced. Deleting the system is illegal.
- #02
Compression leak past the injectors
High RiskAfter 100,000 km
- Symptom:
- Black soot on top of the engine, exhaust smell, hissing sound, hard starting.
- Cause:
- The injector copper washer wearing out or the hold-down bolt loosening.
- Proper fix:
- The injector is removed, its seat cleaned, and a new washer and bolt fitted. If left, the seat gets damaged.
- #03
Turbo oil feed line blockage
Critical RiskAfter 120,000 km
- Symptom:
- Whistling from the turbo, blue smoke, sudden loss of power.
- Cause:
- The strainer in the oil feed pipe clogging with carbon on long oil change intervals.
- Proper fix:
- When replacing the turbo, the oil feed pipe is replaced too and the sump and pump strainer cleaned.
06 / 07
Common fault codes on the 308 1.6 BlueHDi 120
07 / 07
Frequently asked questions
How much engine oil does the 308 1.6 BlueHDi 120 take?
The 308 1.6 BlueHDi 120 (DV6C (1.6 BlueHDi)) takes about 3.8 litres of engine oil including the filter. Recommended viscosity is 5W-30; look for the PSA B71 2290 / B71 2312 approval. Check the level on the dipstick after filling.
When should the timing belt on the 308 1.6 BlueHDi 120 be replaced?
This engine uses a timing belt. In practice 120,000 km / 6 years. Belt, tensioner and water pump are replaced together.
What tyre pressure should the 308 1.6 BlueHDi 120 run?
With the original 205/55 R16 tyres, 36 PSI front and 36 PSI rear are recommended at normal load, and 38 front / 41 rear at full load. The exact values are on the door pillar or fuel flap sticker.
Is the 308 1.6 BlueHDi 120 suitable for LPG?
Not suitable, diesel engine. Classic LPG conversions are not done on diesel engines.
What are the common problems of the 308 1.6 BlueHDi 120?
The best-known problems are: AdBlue system failure, Compression leak past the injectors, Turbo oil feed line blockage. The symptoms and fix for each are explained on this page.
Other Peugeot models
Values are approximate and may vary by engine and VIN. Check against your service manual before doing any work. ·