Peugeot 508 W23
The first-generation Peugeot 508 (W23/R8) was built from 2010 to 2018 as a four-door saloon and a five-door SW estate. Petrol power comes from the naturally aspirated 1.6 VTi (EP6) and the turbocharged 1.6 THP (EP6DT), both already documented in this contour's 308. Diesels span the 1.6 HDi (DV6TED4) through the 2.0 HDi (DW10BTED4, available with a six-speed automatic in the SW) to the 2.2 BiTurbo HDi (DW12TED4).
On the 1.6 VTi, apply the same cold-start timing-drive check already documented for this engine in the 308: insist on a genuinely first start of the day and listen at the timing end for the first five to ten seconds, since a hot restart hides the symptom. The turbocharged and diesel engines follow the same inspection routes already documented for their families elsewhere in this contour.
To judge a specific 508, confirm whether it is the saloon or the SW estate and check the specific engine/gearbox combination documented for that body, since not every option was offered on both. Get a full fault-code read across all control units and keep the printout, and have a franchised dealer run the VIN to check for any open manufacturer actions.
Known issues
Sorted by severity. Tap an issue to reveal the relevant details and what to check.
Engines & reliability
Tap a row to filter the issues to that engine.
Pre-purchase checklist
- ☐On a lift, inspect the turbocharger oil feed pipe and its banjo union at the block, look for oily deposits and sludge, check for shaft play and oil in the intake pipework, and ask whether the sump and oil pump pick-up strainer were ever cleaned after any turbo work