Ask The Guide

Flushing a transmission is a practice that mechanics around the world just can't agree on in terms of its benefits. Either way, it would be pretty dangerous to do it with something as flammable as petrol. Also, unlike transmission fluid, petrol is not a lubricant so internal damage would possibly occur if you ran the car with only petrol in the transmission.

Most transmission flushing is done by using fresh automatic transmission fluid (ATF) which displaces most of the old ATF. A fluid change is the other service option, but this will usually only replace the ATF in the transmission's pan. A flush, meanwhile, will replace the stuff in the pan as well as in the torque converter and the transmission lines.

Your problem, however, sounds more like a lack of fluid in the first place. The inability of an automatic transmission to select gears and/or produce any forward movement is often down to depleted ATF rather than dirty or old fluid. Check the fluid level on the transmission's dipstick and, if it's low, add some more. The job then is to work out where the ATF is going missing, because the transmission is a sealed system that shouldn't need topping up. You may have a leak somewhere. And definitely check this first before spending lots of money on repairs when a quick ATF top-up will bring the car back to full health.

Just for starters, the ZX4 is a four-door sedan, while the ZX3 body is the three-door hatchback. At the very least, that will mean differences in the wiring loom as regards door-courtesy and boot/tailgate lights. Cars will have different wiring looms depending on their transmission, too, so even if the engine is the same in both cars, the loom might not be.

Then there's the more basic question of whether they're actually the same model of Ford Focus. Ford Australia switched to the all-new second-gen Focus in April 2005, and if your 2005 Focus is that newer version, the wiring will not be compatible with the 2001 model. But even if they're from the same generation of Focus, swapping a wiring loom from one car to another involves many, many hours of work.

Cars have never been more dependent on their electrical systems than they are today. Sometimes, changing a dead battery can lead to the sorts of problems you've noted, and while it could be something more mechanical, there's one thing you can try at home before phoning the mechanic.

Disconnect the battery and leave the car for at least half an hour. Then, reconnect it, start the engine and go for a drive of at least 30 minutes. That will usually be enough to perform what's called a reset and may solve your problems.

If not, you need to have the car scanned at a workshop to see what problems the on-board computer has identified.

A diesel that will turn over but not fire will often have a problem with its fuel system as the cause. You may need to check the fuel pressure and the pump itself, but other causes can be blocked or worn injectors and blocked or dirty fuel filters. A car with faulty glow-plugs can also be difficult to start from cold. But even things like a blocked air filter or something else fundamental to the car's operation could be the cause. And while it sounds simple, is there actually fuel in the tank?

If the solution doesn't present itself simply, the best advice is to have the car electronically scanned to check for fault codes the on-board computer will have logged.

The most obvious warning light that features a thermometer icon along with what could be described as fumes is the low coolant warning light which is sometimes yellow or orange (as opposed to red). If that's the case, the `fumes' are actually representing the coolant (as little waves). The other warning light that commonly displays gas fumes is the light to tell you there's a problem with the vehicle's diesel particulate filter (DPF). This is also often a yellow or orange light.

Car-makers tend to save red warning lights for the more serious problems such as low oil pressure or high coolant temperature. Even so, a yellow or orange warning light should not be ignored as it can easily develop into a red-light situation pretty quickly.

It sounds simple, but have you checked the owner's manual for the vehicle? There's likely to be a chapter dealing with what warning lights represent what.

It doesn't matter whether it's a common fault with this make and model, because the reality is that the vehicle is still under the factory warranty, so it's Isuzu's problem, not yours.

Provided, that is, that the fault occurred on its own and not as the result of an impact that would be deemed accidental damage.

Generally speaking, these LED information screens and other touch screens are pretty reliable and robust, but problems have been known to occur including loss of touch control and the sort of crazing you're noted. Isuzu is not alone either, and many brands have similar issues. The crazing can also be the result of temperature extremes (hot and cold) and will sometimes go away when the ambient temperature returns to a more moderate level.

The type of problem can often be fixed by replacing the actual screen (or in this case, rotary dial) rather than the entire control unit. But it's a specialist job and involves dismantling at least some of the dashboard to achieve.

According to the manufacturer, your MG can not be run on E10 petrol. But the MG ZST can live with E5 fuel (petrol with up to five per cent ethanol content) if you can find it. Unfortunately, most ethanol blended fuels in Australia are up to 10 per cent (E10) so you should give them a miss.

Window tinting rules vary from state to state, but in Queensland (where UV light levels are higher than, say Tasmania) you can get away with slightly darker tint and still be legal. But, a window tint that is 20 per cent VLT (Visible Light Transference, or; the percentage of light the tint allows through) is only legal on privately-registered cars in QLD on the rear and rear-side windows. The front side windows cannot be tinted to less than 35 per cent VLT and the windscreen can not be tinted at all (beyond a factory tint) apart from the top 10 per cent of the glass area. So, no, a 20 per cent VLT tint all round would not be legal.

Failures of these engines is a known thing with this generation of Hyundais (and Kias that used the same engine). Hyundai is well aware of the problem, so the first thing to do is contact Hyundai’s customer service division.

You may find that an independent inspection of the engine is a good idea, to determine whether the failure was caused by the known fault or by something more random. In our experience, Hyundai has been very diligent at sorting out such issues.

If you want to take it even further, a class action against Hyundai and Kia on this basis was launched earlier this month.

That actually sounds like a ripper deal to us. Getting any kind of a discount in 2023 when supply-chain problems that have created more demand than supply of many new cars is increasingly uncommon. The eye-watering cost is the dealer delivery charge which is generally higher than it's ever been and reflects that demand from buyers who will pay it to secure the car they want. Some dealers won't negotiate on this cost, others are more inclined to sharpen their pencil to get you over the line.

Also, many of the additional costs you've listed are government mandated and are not negotiable. Those include the stamp-duty and CTP fee as well as the registration charge. Add those to the base price and you wind up with $45,457, meaning you're getting the dealer delivery fee and all those extras for less than $600. That seems pretty darn good in 2023.

Plenty of cars suffer this problem as they age. Consider that every time the vehicle is used, one or more door handles is being operated. Throw in the fact that the quality of these Holden Captivas was a bit sketchy in the first place, and you can see why the years and duty cycles of the door handles can catch up with them. Fortunately, it's not a huge job to replace the handle and new handles are available form lots of outlets including online sellers.

The Captiva was not alone in this problem, and many makes and models have a history of door handles breaking. Again, it's usually through wear and tear and cheap materials in the manufacturing process at fault.