Toyota has overhauled the DPF tech in its newest HiLux, Prado and Fortuner fashions. Listed here are the modifications intimately.

Toyota Australia has mounted hundreds of defective or clogged diesel particulate filters throughout HiLux, Prado and Fortuner fashions made since 2015 – and now it claims the newly up to date variations of these automobiles have a system redesigned in such a method as to keep away from previous issues.

Whereas the corporate is on the centre of a authorized dispute over autos offered between 2015 and 2019, Toyota insists it has mounted the issue and continues to induce clients to return ahead if they don’t seem to be completely satisfied.

Nonetheless, professional proof introduced to the Federal Court docket claimed the unique Toyota DPF system was “faulty” in its design and vulnerable to failures. Toyota tried to have the proof dismissed, nevertheless it was accepted as a part of the Federal Court docket’s consideration to any doable fines or remedial motion.

On condition that it is nonetheless a scorching subject and many shoppers stay unconvinced that the issues have been solved, CarAdvice obtained extra particulars in regards to the modifications to the newest DPF {hardware} and software program modifications on fashions since 1st Could 2020.

This date coincides with facelifted HiLux, Fortuner and LandCruiser Prado autos happening sale.

Beforehand, Toyota’s statements pointed in the direction of software program and {hardware} modifications with none additional particulars.

Nonetheless, now armed with some further data from Toyota, CarAdvice can define important modifications to the design of the so-called ‘fifth injector’ and diesel oxidisation catalyst – a working change launched in Could 2020 – together with software program modifications of how the DPF operates.

The fifth injector, which is there to extend temperatures throughout the DPF when required for lively regeneration, now has prolonged water jackets across the tip of the injector for higher cooling means.

Software program modifications, launched on the similar time, permit higher operation of this new fifth injector design.

New Toyota DPF design

The diesel oxidisation catalyst (DOC), a honeycomb construction of assorted metals which converts exhaust gasses into being much less dangerous, has additionally been redesigned for more practical efficiency.

Extra anecdotally, our time with new HiLux and Fortuner since these modifications have been made, exhibits a extra lively DPF that goes into an lively regeneration mode extra repeatedly.

That is accompanied by new updates by way of the multifunction show, indicating when both an automated regeneration cycle has begun, or if a guide burn is required. There may be additionally now DPF stage indicator.

Toyota DPF updates

The modifications have been undertaken due to widespread issues with Toyota’s 2.8-litre and a couple of.4-litre DPF system, which precipitated authorized motion towards the producer.

Bannister Legislation, who’s heading up a category motion towards Toyota, says over 250,000 autos offered between 1st October 2015 and 23rd April 2020 have been affected, together with standard HiLux, LandCruiser Prado and Fortuner fashions.

Recently deemed ‘defective’ by a court-appointed independent report, defective DPFs will emit extreme white acrid smoke, has the potential to extend gas consumption in some circumstances, and requires a go to to the supplier to treatment.

Together with having this new DPF design for his or her 2.8-litre and a couple of.4-litre diesel autos, Toyota has additionally prolonged a ten-year warranty on affected autos with defective DPFs.