It isn't as clear cut as that. Yes, early models of the IQ seem to be more prone to EGR issues, but that is not to say that all early models will have problems. For an out of warranty repair you would be reliant on the manufacturer (in this case Toyota) agreeing to provide a goodwill contribution towards the cost of repair. Please note that a goodwill contribution may not mean the full cost of the repair, but a contribution. When deciding whether or not to provide a goodwill contribution, the manufacturer will want to look at the vehicle's service history, and whether it has been maintained according to the manufacturer's service schedule and using parts of sufficient quality. Goodwill works both ways - the manufacturer may show loyalty to the owner by helping with an out-of-warranty repair by providing a goodwill contribution, and the owner shows loyalty to the manufacturer by having the vehicle serviced within that manufacturer's dealer network. If the vehicle has been serviced outside the manufacturer's dealer network by an independent garage, the chances of a goodwill contribution will be reduced. If the car has been serviced by the owner, the chances of a goodwill contribution will be further reduced. If the manufacturer agrees to a goodwill contribution, they will require the remedial work to be undertaken within their dealer network. Expecting to apply duress to a manufacturer when asking for a goodwill contribution, won't be successful. Remember you're asking for them to help you financially when the vehicle is outside their warranty - so there is no legal obligation or otherwise for them to provide assistance. Having said that, Toyota is one of the most sympathetic vehicle manufacturers. So if the vehicle has a provable service history where servicing has been done on schedule and parts similar in quality to OE parts have been used (and the onus would be on the owner to prove this), they may be receptive to providing some assistance. The above comments will apply to any manufacturer.