IsItAGoodCar
Reliability Guide

Common Problems with the
2018 Toyota Avensis Mk3 (T27)

The final year of the Avensis in the UK, as Toyota quietly discontinued the nameplate without a direct successor. Late cars represent excellent value as a spacious, reliable family saloon, though the market has moved firmly towards SUVs. Parts and dealer support remain strong, and the simple petrol models are cheap to maintain.

What changed for 2018

  • •Final production year — the Avensis was not directly replaced
  • •All models now include Toyota Safety Sense as standard

Common MOT watch-outs

  • !Age-related corrosion on cars that have not been garaged
  • !Steering column wear becoming more noticeable on high-mileage examples
2
Known Issues
0
Serious
1
Moderate
1
Minor

All Known Issues

Steering Intermediate Shaft Knock

ModerateSteering

A dull clonk through the steering on rough roads is a known annoyance on some T27s and usually points to wear in the intermediate shaft or column area.

Est. Repair Cost: £150–£700
Warning Signs:

Clunk felt through steering wheel, Rattle on broken tarmac, Noise when manoeuvring slowly

What to Inspect:
  • Drive over small bumps with light steering input
  • Rock the wheel gently when stationary
  • Check for prior shaft or column replacement
Verified by IsItAGoodCar Research TeamUpdated

Water Ingress from Door Membranes or Boot Seals

MinorBodywork & Rust

Some cars develop damp carpets or boot trim because ageing seals and membranes start letting water past after years of use.

Est. Repair Cost: £0–£250
Warning Signs:

Damp carpets, Condensation, Musty smell in cabin or boot

What to Inspect:
  • Feel the carpets and boot floor for moisture
  • Check for water marks behind trim panels
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2018 Toyota Avensis Mk3 (T27)

  • Late 2018 cars offer the best equipment levels and lowest risk
  • Avoid ex-fleet diesels unless there is documented evidence of regular motorway use
2016–2017
Check a 2018 Toyota Avensis Mk3 (T27) by Registration