Peugeot 208 and 2008: PureTech wet belt and what else to check

The 208 and 2008 share their platform, engines and electronics with the wider Stellantis range — including Citroën, DS, Opel and Vauxhall models of the same era.

Shared reference: Peugeot and Citroën common DTC codes, Peugeot 308 dashboard warning lights and Citroen C4 and Berlingo.

The PureTech wet timing belt

The 1.2 PureTech uses a timing belt that runs in engine oil. It is efficient and quiet, and it has a documented failure mode.

The belt degrades over time and sheds material into the oil. That debris blocks the oil pickup strainer, starving the engine of oil pressure — and a belt problem becomes an engine problem.

This is the most important thing to establish on any PureTech car.

• Check the belt service history. A missing record is a repair cost, not a maybe.
• Revised belt designs and shortened intervals have been introduced. Ask which applies to the specific vehicle.
• Watch oil pressure behaviour as the early indicator.

Timing belt replacement OBD indicators, timing belt vs chain owner guide and oil light flickering at idle.

A flicker of the oil lamp at hot idle on a PureTech is not something to monitor. It is the warning.

Where the diagnostic connector is

PSA-derived vehicles frequently place the OBD connector behind the ashtray or in a centre console cubby rather than under the dash.

This catches people out regularly: where is the OBD port.

Other PureTech considerations

Intake valve carbon, as on any direct injection engine: GDI carbon buildup.

Boost leaks rather than turbo failures, in most cases: turbocharger boost leak diagnostics.

Cooling — the usual small-turbo-engine attention to coolant level and the temperature curve: P0128 thermostat deep dive.

The BlueHDi diesel

Where fitted, with one item people rarely know about.

PSA diesels use an additive dosed into the fuel to lower the temperature at which soot burns, easing regeneration. That additive has its own reservoir and needs periodic refilling.

A car with an empty additive reservoir regenerates poorly and blocks its filter faster — and most owners have never heard of it.

Alongside that, the standard stack:

• DPF: DPF light on and P2459 regeneration frequency.
• EGR carbon: P0400 and P0403 EGR flow.
• AdBlue on later models: AdBlue warning countdown and P204F reductant system performance.

Oil dilution raises the dipstick level — which matters especially on an engine where oil condition determines belt life.

The e-208 and e-2008

Fully electric versions, where most of what OBD-II was designed to read does not exist.

What still matters: the 12 V battery, which immobilises the vehicle completely when flat regardless of the traction battery.

OBD on electric vehicles, what it gives, EV 12V battery failures and used EV buying, battery health check.

Electrical

PSA vehicles are sensitive to battery condition, and a weak battery produces warning messages across several systems that look like independent faults.

P0560 to P0563 system voltage faults and when the scanner lies about ghost codes.

The i-Cockpit and driver assistance

Extensive on these models, and calibration is required after windscreen or bumper work: ADAS calibration.

Buying used

1. PureTech belt history. The single most consequential question.
2. Oil level and condition, and oil change records.
3. Additive reservoir status on a BlueHDi.
4. Soot load and journey pattern on a diesel.
5. Battery condition under load.
6. 12 V battery age on an electric version.
7. Readiness and permanent codes: Mode 0A permanent DTCs.

Used car pre-purchase OBD check.

Try it on the free tier of the app — pair an ELM327 adapter and watch oil pressure behaviour at hot idle on any PureTech. That is the reading the engine gives you before the expensive version of this problem arrives.