Ask The Guide

The model you've nominated has a timing chain, which, in theory, should be good for the life of the engine. However, that's not always the case, and some specialists recommend changing the timing chain at intervals of 200,000km. That is still a pretty decent innings for a hard-working vehicle like a Transit and is longer than the change interval for most engines with toothed rubber timing belts.

These are quite different vehicles in terms of their physical size. While older generations of the RAV4 were known as compact SUVs, the current model is resolutely mid-sized. None of which is to say that the Yaris is cramped but it is a size-division smaller, so if you often carry people in the back seat or your family is growing, the RAV4 might be a bit more future-proof.

However, in driveline terms, the Yaris is the one that is truly future-proof thanks to its hybrid driveline. If most of your driving is around the city and suburbs, you might be surprised at just how efficient a modern hybrid can be. On the highway, there's less to be gained form the hybrid layout, so take that into account, too.

The other thing to consider is what happens a few years down the track at trade-in time. The RAV4 is question is already one generation older than the Yaris, and the hybrid Yaris is almost certain to be worth more as a second-hand proposition five years from now. Which means the latter will probably be the cheapest to own over that time in a wholistic sense.

Ford's popular PX Ranger (sold from 2011 until its replacement in 2022) marked a distinct move away from timing belt technology, but prior to that, the Mazda-sourced engine in your vehicle uses a rubber toothed timing belt. As such, this belt and its tensioners and idlers require replacement at regular intervals.

The recommended belt-change interval for this engine is 120,000km or six years, whichever comes first.

There's been plenty of talk in recent years about the future of diesel engines in vehicles like the Ranger and Everest. And while there's a school of thought that suggests that they'll switch to petrol and petrol-electric hybrid drivelines, that hardly makes a diesel-engined version a dinosaur overnight. Take the Toyota Corolla, for instance: While the latest Corolla is available with a hybrid powertrain (and it's a very popular format) there are still plenty of people happily driving around in their 20-year-old Corollas with conventional drivelines.

The point being that progress is a fact of life. Every time a new piece of tech arrives that is seen as an improvement, car-makers will adopt it. Which means the previous technology is out of date, but not necessarily beyond its useful life.

If you think a plug-in hybrid Ranger or Everest would suit you, then by all means wait until 2024 (the rumoured launch date). But bear in mind that, by then, there may be talk of the next big thing in Rangers and Everests; an advance that could make even the plug-in hybrid look a bit yesterday.

A dual-fuel (LPG and petrol) car that is set-up correctly for both fuels should have no problems switching between those fuels. That's particularly so for modern cars with electronic engine control which can be tuned precisely for each fuel, rather than the old-fashioned method of achieving a compromise tune to make either fuel work.

The reality is that most dual-fuel systems actually start the car on petrol before switching over automatically to LPG. That allows of easier, faster, cleaner starts before the car switches itself over to the cheaper LPG once it's running. In most cases, the driver doesn't even feel this happening. Next time you start the car, it will use the same strategy so, in effect, a dual-fuel car is constantly switching between the two fuels with no harmful side-effects.

This is not an uncommon complaint with MU-X owners nor the owners of many other makes and models. It seems as though some Bluetooth systems prefer an Apple phone to an Android and vice-versa. The solution for some owners has been to change their brand of phone, but that seems pretty extreme. Others have resorted to aftermarket Bluetooth systems, but since your car is still brand-new, it doesn't make sense to be changing the head unit.

The first thing to do is contact Isuzu to see if there's been a new download to reflash the head unit and improve the Bluetooth performance. Car makers constantly chase this stuff, and a reflash might suddenly make the thing play the game properly.

You can check whether the problem is phone incompatibility by trying to pair somebody else's phone (of a different type) to see if it works properly with the MU-X's system.

The trade recommends a fully synthetic oil for either the diesel or petrol engines of the Golf Mk 7. The correct grade and specification is 5W30 which will give you maximum engine protection and performance.

The other engine-oil recommendation for this car is to not skimp on checking the oil level with the dipstick. These engines – in particular the 2.0-litre petrol unit – are designed to sip a little oil between changes, so don't be caught out with too little oil in the sump as that can cause catastrophic damage to the engine. The engine does this because it's a low-friction design, but the small amount of oil you'll use will be more than offset by the fuel savings engines designs like this can deliver.

Make it a habit to check the oil level every Saturday morning; it's a simple thing to do and something that we all once had to do in the old days when most engines burned a little oil.

It very much sounds as though the car's alternator has failed. The alternator's job is to charge the battery when the car is being driven. If the alternator is weak or has failed completely, it can't do that and the battery will eventually run out of charge and fail to operate things like the ignition, lights and electric power-steering. Which could entirely explain the problems you're seeing. The illuminated battery light on your dashboard is the other big hint that the alternator has quit on you.

There's a very quick check that can be done to see if the alternator is pulling its weight, and I'd be a bit surprised that a roadside-assistance mechanic didn't perform it as part of jump-starting the car to get you going. The test involves using a volt-meter to see if the battery is, indeed, being charged when the engine is running. A new or reconditioned alternator is the best solution, but only after you've tested the car to see if that's the actual problem.

You could also be looking at a battery that has failed (which, at just 12 months old, we would expect) and can also create the same symptoms you've noted.

This situation will turn out very differently depending on whether the car is still under Kia's factory warranty, or an aftermarket warranty sold by the dealership when the car was bought by your daughter. It will also depend on whether the cracked transmission case was due to a flaw or something thrown up off the road (which would count as accidental, not warranty, damage).

Kia extended its factory warranty to new, privately-owned cars on October 1, 2014. Which means the car in question was covered to that extent. With that in mind, the car should, indeed, be covered by Kia's factory warranty (until next year) so there should be no quibbling about a failure like this one that has had nothing to do with the way the car has been used or serviced. My experience is that Kia is pretty good at this stuff, figuring that its long-term reputation is more valuable than fixing an – often – rare fault. And even though your daughter was not the first owner of the car, the factory warranty is transferable to subsequent owners. Provided, that is, that the car has been serviced and maintained correctly.

If, however, the car is covered only by the aftermarket warranty, then you'll be in for a huge fight as these aftermarket warranties are rarely worth the paper they're printed on. The fine-print is full of clauses and conditions that allows the car dealer to wriggle out of their responsibility, and we simply don't recommend these warranties under any circumstances.

As for the fault itself, it's pretty rare to hear about something like a transmission case fracturing. Perhaps there was a manufacturing or casting flaw in that particular unit that has taken its time to surface and cause the failure. As for what you should do, the answer is simple: Take it back to the dealership you bought it from and make sure it's fixed properly according to the terms of Kia's own warranty. Don't be afraid to be a bit patient, and always give the dealership (or Kia) every chance to put things right before you instigating legal action or contacting the ACCC.

If Kia expresses any doubt over what caused the failure, an independent inspection (perhaps by the NRMA) will be able to determine what caused the casing to fracture and, therefore, whether it's a warranty or insurance job.

From the sounds of things, you need a vehicle that can accommodate the wheelchair as an actual seat in the car rather than having the chair folded and stored for the journey. With that in mind, a van or people-mover is by far the best best bet and the news is good, because there are plenty of choices. For a while there, people were converting Ford Falcon station-wagons for this task, but since the Falcon is no longer made, vans have become the new default vehicle to convert. Which makes plenty of sense.

There are specialist firms around that will carry out whatever conversion you require and tailor-make the ramps, lock-down points and grab-rails you need to make it work for you. Switched on companies will sit down with you and discuss your precise requirements and engineer something bespoke if necessary.

At the moment, the list of car choices is pretty long and includes the new Hyundai Staria, VW Caddy, LDV G10, VW Caravelle, Renault Kangoo, Renault Trafic, Hyundai iLoad, Mercedes-Benz V-Class, Toyota HiAce and, in case you need something really big, even the Toyota Coaster. Some of these companies are also registered as NDIS suppliers.

But don’t rule out a second-hand vehicle, either. There are websites around listing used wheelchair-accessible cars for sale. Some will be ex-taxis, but others can be relatively low-kilometre cars that might just have the exact layout you were looking for.