IsItAGoodCar
Reliability Guide

Common Problems with the
2009 Toyota Avensis Mk3 (T27)

The T27 Avensis launched as the final generation, offering a step up in refinement and safety over the T25. The 1.8 Valvematic petrol was the smoothest option, while the 2.0 and 2.2 diesels continued to dominate fleet sales. Build quality was good but the 2.2 diesel remained a known risk that would only become more apparent over time.

What changed for 2009

  • •Complete redesign with more dynamic styling and improved aerodynamics
  • •Introduction of the 2.0 D-4D and 2.2 D-4D/CAT diesel engines

Common MOT watch-outs

  • !DPF and EGR blockage on short-trip diesel cars
  • !Steering intermediate shaft knock on rough roads
3
Known Issues
0
Serious
2
Moderate
1
Minor

All Known Issues

DPF and EGR Blockage

ModerateExhaust & Emissions

Short-trip diesel T27s can suffer carbon-clogged EGR valves and overloaded DPFs, leading to warning lights, limp mode and expensive cleaning or replacement bills.

Est. Repair Cost: £250–£1,500
Warning Signs:

DPF warning light, Poor fuel economy, Limp mode after urban use

What to Inspect:
  • Ask what type of journeys the car has done
  • Check for recent DPF or EGR work
  • Look for hesitation or smoke on the road test
Verified by IsItAGoodCar Research TeamUpdated

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 2009 Toyota Avensis Mk3 (T27)

  • Petrol manual cars are the safest bet for long-term reliability
  • Diesel cars need evidence of regular motorway use and DPF-friendly servicing
2010–2011
Check a 2009 Toyota Avensis Mk3 (T27) by Registration