Ask The Guide

Although it’s an inconvenience to lose your car for any length of time, it might be the only way the service team can diagnose the problem and attempt a fix. We like to remind each other that car makers have obligations under consumer law, but it also pays to remember that, as the consumer, you also need to give the manufacturer the opportunity to put things right if it can.

The best solution would be for the dealer to provide a courtesy car while yours is in dry dock.

It kind of goes against the grain a little, but there’s a valid case for listening to your friends and mechanic and driving the car until it stops. Since your car is worth – based on average asking prices – about $10,000, you could easily overcapitalise on a new transmission.

The best advice is to have it checked over by a transmission specialist who will know what to look for based on the symptoms they see. You’re right in that a bad pothole could have damaged a drive-shaft (or a wheel, or suspension component) and the torque converter is also a candidate to produce a fault in the way the car drives. On the flip-side, you might simply find that a service and change of fluid brings the transmission back to full health. Meantime, I’m not so sure about rebuilt transmissions not carrying a warranty. Australia’s consumer law suggests that may not be the case.

This model A200 uses a seven-speed dual-clutch transmission, which is more or less a manual transmission with a robot to operate the clutch and gearshift for you. So, if it feels like a manual, that’s kind of because it is.

However, the transmission should never jump, jerk or thump into gears. If it does, that suggests there’s some problem within the gearbox, possibly worn clutch-packs which, like those of any manual transmission, can wear prematurely if the car has been abused or treated to patchy maintenance. A Mercedes-Benz dealer should be able to run an electronic check on the transmission to see if there’s any evidence of wear or damage.

The Crown is a popular grey (private) import and there are plenty of them getting around in Australia these days. Mechanically, they share a lot of components with other Toyotas and some Lexus models, including the hybrid variants. Technically speaking, because the latter-day Crown was never officially imported here (earlier versions were) a Toyota dealership may or may not wish to take on the maintenance. But you should have no trouble finding a workshop that knows its way around these cars and perhaps even specialises in them.

Mechanical parts should not be too hard to get hold of, but body parts and trim pieces might be another matter as they will be Crown-specific and not shared across other models. As with any car, the price you’ll pay will depend on availability and whether you want brand-new or are prepared to accept second-hand parts.

This model Cruze used a toothed rubber timing belt, rather than a timing chain. Holden recommended the belt be changed at 90,000km intervals. It’s not a job to ignore, either, as a snapped timing belt will often turn the engine to junk in an instant.

A second-hand engine from a wreck is often a good an option, but only if you can find one that has been tested and comes with a warranty, otherwise you could be replacing your worn engine with an even more worn one. But with a diagnosis estimate of $5000 (and any actual repairs on top of that) I reckon a different workshop would be your best option. Frankly that seems (on the surface) a ridiculous figure and suggests that the workshop in question either doesn’t want your business or is assuming you’re a sucker.

Low oil pressure can be caused by various problems, and a good workshop should be able to check it out and give you a definitive answer on whether it could be fixed or the whole engine replaced. The good news is that the CX-5 is a popular model, so a replacement engine shouldn’t be too hard to track down.

Even when it’s completely empty, your caravan is still likely to weigh a couple of tonnes (give or take). At which point, you’re using a fair chunk of the Pajero’s towing capacity of 2500kg. What’s happening is that the transmission of the car is choosing to shift down a gear or two to bring the engine up to a speed where it’s making enough power and torque to haul the rig along at the speed you’ve chosen to travel at. Maximum torque in the Pajero’s 3.5-litre V6 occurs at 3500rpm, so that’s what the transmission will aim for when you need maximum thrust.

The process also takes some of the load off the transmission, helping it live longer and avoid damage and overheating. There’s a general rule that says you shouldn’t really tow anything remotely heavy with the transmission in overdrive. Experienced towers physically lock the gearbox out of overdrive, and this, essentially, is what the car is doing for you by shifting down gears when a hill or headwind increases the load on the driveline.

The petrol V6 in the Pajero was never a fuel sipper, and I’m not surprised you’re seeing higher fuel consumption in this scenario. This is also the reason many people who regularly tow choose a turbo-diesel to do so.

The Haval product has only been on sale in Australia since 2015, so it’s a bit hard to gauge its long-term reliability prospects. Even more so when it’s a model like the Jolion which hasn’t been on local roads for anything like seven years (it was launched here in 2021).

Based on the experiences of CarsGuide readers, the Jolion has been responsible for some electronic woes and the odd build-quality issue. These, however, could be isolated problems rather than a general assessment of the model. At least with a 2024 model, you’ll have at least six years of warranty, so you could use that time to assess the car’s reliability and quality for yourself before making a decision to hold on to it beyond the warranty period.

A leaking rocker cover gasket won’t cause the engine to stop unless it somehow manages to allow too much lubricating oil to escape the engine (which, it potentially could over time). But it still needs to be fixed, because technically the car is unroadworthy with an oil leak and various bits of the car will be getting coated with the oil as it leaks out. Rubber suspension bushes, in particular, are intolerant of contact with oil and will degrade as a result. You might also find the leak is dumping oil on your tyres or the ground in front of them. So it needs to be fixed sooner rather than later.

As for the original diagnosis of your car needing a new engine, I’d be giving that workshop a wide berth as the mechanic in question might be either incompetent or attempting to rip you off. Or both. Your decision to seek a second opinion was a good one and should be standard practice.

You’re probably right in thinking there’s a problem in the fuel system, but simply changing bit and pieces you think might be the cause is a great way to waste money replacing parts that turned out to be perfectly good, leaving you with the same problem. Take the vehicle to a diesel specialist. The cause could be dozens of things from fuel-pump wear, a dirty fuel filter, a clogged intake manifold, blocked lines and worn fuel injectors. And more.

A specialist diesel shop will be able to take the guesswork out of a diagnosis and will almost certainly save you time and money.