IsItAGoodCar
Reliability Guide

Common Problems with the
2018 Peugeot 108

By 2018 the 108 had established itself as one of the most reliable city cars on the UK market. The facelift brought updated styling while retaining the proven mechanicals.

What changed for 2018

  • •Mid-cycle facelift with revised styling
  • •Updated infotainment system
  • •All early issues addressed
  • •Strong used values reflecting reliability

Common MOT watch-outs

  • !Central locking actuator failure
  • !Water pump leaks on higher-mileage cars
  • !Touchscreen connectivity issues
4
Known Issues
0
Serious
2
Moderate
2
Minor

All Known Issues

Clutch Wear from Heavy Urban Use

ModerateGearbox & Transmission

The 108 spends most of its life in traffic, so clutches and release bearings wear out well before the rest of the car is finished. A new driver's car often needs a clutch by 50k miles.

Est. Repair Cost: £350–£650
Warning Signs:

High clutch bite point, Judder when pulling away, Whine or rumble with clutch pedal pressed

What to Inspect:
  • Hill-start the car
  • Feel for slip in top gear
  • Listen for release-bearing noise
Verified by IsItAGoodCar Research Team

Front Suspension Knuckle and Spring Wear

ModerateSuspension & Chassis

The front suspension bushes, drop links and springs wear quickly on UK roads. Snapped front springs are a common MOT failure on older 108s.

Est. Repair Cost: £120–£320
Warning Signs:

Clonk over potholes, Uneven front tyre wear, Twang when turning

What to Inspect:
  • Inspect front springs and drop links
  • Review MOT history for suspension advisories
Verified by IsItAGoodCar Research Team

Tailgate Seal Water Ingress

MinorBodywork & Rust

Water can leak past the tailgate seals into the boot, dampening the spare wheel well and potentially affecting rear electrics over time.

Est. Repair Cost: £40–£200
Warning Signs:

Damp boot carpet, Musty smell from the rear, Water in the spare wheel well

What to Inspect:
  • Lift the boot floor and inspect for dampness
  • Check tailgate seal condition
Verified by IsItAGoodCar Research Team

Central Locking Actuator Failure

MinorElectrics & Electronics

The door lock actuators can fail, preventing remote locking or unlocking of individual doors. The driver's door is usually the first to go.

Est. Repair Cost: £80–£200
Warning Signs:

One door will not lock remotely, Central locking warning light, Key fob range reduces

What to Inspect:
  • Test all doors with the key fob from both inside and outside
Verified by IsItAGoodCar Research Team

Buying Tips for 2018 Peugeot 108

  • ✓Check the clutch bite point; town driving shortens clutch life dramatically
  • ✓Inspect the front suspension for worn drop links and spring seats
  • ✓Test the central locking on all doors with the key fob
2015–20172019–2021
Check a 2018 Peugeot 108 by Registration