Toyota Auris Problems & Known Issues

The E150 Auris suffers from severe corrosion of the rear subframe mounting points and load-bearing structure within 30cm of suspension component attachments. MOT data shows this model fails at up to 26.9 times the fleet average for prescribed area structural failure, with suspension components becoming excessively corroded at 44.9 times the fleet average. The thin steel construction and poor rust protection in these areas leads to structural weakness that compromises vehicle safety. Later E150/E180 models have improved corrosion resistance but are not immune.

First-generation Auris models suffer from accelerated brake pipe corrosion, particularly affecting the rear brake lines that run along the corroding subframe. MOT data shows this model fails at 17.4 times the fleet average for brake pipe damage or excessive corrosion. The brake pipes are vulnerable to damage from debris and corrosion products falling from the deteriorating subframe above them, creating a cascading failure mode unique to this generation.

Diesel Auris models suffer from diesel particulate filter blockage, particularly when used predominantly for short urban journeys that prevent the DPF reaching the temperature required for passive regeneration. The 1.4 and 1.6 D-4D engines are especially susceptible, with MOT data showing diesel variants fail emissions tests at

Diesel injectors on Auris models are prone to failure due to contamination from poor fuel quality and carbon build-up from DPF regeneration cycles. The high-pressure common rail system operates at up to 1,800 bar, making the injectors vulnerable to wear from contaminated diesel fuel. Failed injectors cause rough running, increased emissions, and can damage other engine components if left untreated.