IsItAGoodCar
Reliability Guide

Common Problems with the
2015 Peugeot 508 (Gen 1)

A 2015 facelift gave the 508 a vertical grille, full-LED headlights and a revised engine range including the 1.6 BlueHDi 120. It was the last significant update before the sleeker R83 generation arrived in 2018.

What changed for 2015

  • •Vertical chrome grille, new bumper and full-LED headlights
  • •1.6 BlueHDi 120 with AdBlue joins the range alongside 2.0 BlueHDi
  • •Six-speed EAT6 automatic replaces the older AM6 unit
  • •RXH switched to front-wheel drive and a lower, less rugged stance

Common MOT watch-outs

  • !AdBlue and SCR faults on BlueHDi cars, often with a no-start countdown
  • !Full-LED headlamp failures and aim problems after front-end repairs
  • !Corroded rear brake pipes and ferrules on 2011-2015 cars
4
Known Issues
2
Serious
2
Moderate
0
Minor

All Known Issues

AdBlue System Faults (BlueHDi)

SeriousExhaust & Emissions

The AdBlue tank, pump and injector on later BlueHDi models can fail, triggering UREA warnings and eventually a non-start countdown. Replacing the complete tank assembly is the usual fix and is costly.

Est. Repair Cost: £800–£1,500
Warning Signs:

UREA warning light, Engine management light, No-start countdown

What to Inspect:
  • Check for emissions warning lights
  • Ask about AdBlue system repairs
Verified by IsItAGoodCar Research Team

Electric Power Steering (EPAS) Failure

SeriousSteering

The electrically-assisted steering can develop heavy or unassisted feel at low speed. The EPAS column is a known PSA weak point on this generation.

Est. Repair Cost: £400–£900
Warning Signs:

Heavy steering at low speed, Power steering warning light, Intermittent loss of assistance

What to Inspect:
  • Test steering at low speed and during parking
  • Check for power steering warning light
Verified by IsItAGoodCar Research Team

1.6 HDi/BlueHDi turbo and DPF issues

ModerateEngine

Needs strict oil changes to protect the turbo.

Est. Repair Cost: £300–£1,200
Verified by IsItAGoodCar Research Team

Rear Suspension Bush Wear

ModerateSuspension & Chassis

The rear suspension trailing arm bushes wear prematurely on UK roads, causing a knocking noise from the rear over bumps and vague handling at speed. This is a common MOT advisory item.

Est. Repair Cost: £150–£400
Warning Signs:

Knocking from the rear over bumps, Vague rear-end feel at motorway speed, Uneven rear tyre wear

What to Inspect:
  • Inspect rear bushes for play or cracking
  • Check MOT history for rear suspension advisories
Verified by IsItAGoodCar Research Team

Buying Tips for 2015 Peugeot 508 (Gen 1)

  • Check both headlights for condensation and an even beam pattern
  • Ask for AdBlue top-up records and scan for SCR fault codes
  • Confirm the EAT6 oil has been changed if the car is over 100,000 miles
2012–20142016–2018
Check a 2015 Peugeot 508 (Gen 1) by Registration