Hyundai Tucson diesel problems
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Asked by Trudie
I am interested in buying a Hyundai Tucson but can't decide between the diesel or petrol version? Are there any common issues with either version that I should be aware of?
Answered by CarsGuide
10 Mar 2021The Hyundai brand has developed an enviable reputation in this country for reliability and quality. The brand’s warranty is also excellent, taking away even more buyer anxiety. With that in mind, the decision to go diesel or petrol comes down to the way you use the vehicle.
This applies to all brands, not just Hyundai, but if all (or most of) your driving will be urban or suburban based, then the petrol engine is for you. Yes, you’ll use a little more fuel than the diesel variant, but servicing costs could be a little lower and you’ll avoid the modern turbo-diesel’s biggest downfall; a blocked Diesel Particulate Filter (DPF).
The DPF is an emissions device that traps the soot from the diesel engine and burns it off at a later date. The problem with that is that the DPF can only burn off the soot and regenerate itself if the engine (and exhaust system) gets to a temperature high enough for this to happen. In urban running, that doesn’t just doesn’t happen, at which point the on-board computer will either try to force a regeneration (not always successful) or the DPF will have to be manually cleaned or even replaced (and that’s costly).
The bottom line, then, is that a turbo-diesel (even a modern one) is only for you if you will be driving the car at highway speeds for at least half an hour at least once a month (once a fortnight is better). If that’s how you use a car, then the diesel should be okay; if not, it’s petrol every time.
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