Expert answer

Hi Kieran,

Yes, turbocharged petrol engines do often have exhaust gas recirculation (EGR) systems and dual-mass flywheels, but they are far less likely to cause problems due to, respectively, the different exhaust gases and the torque characteristics of the engine. Added to which, petrol engines work at lower combustions pressures and with less vibration than diesel engines so there's a little less wear and tear to worry about.

No, turbocharged petrol engines don't have particulate filters as, for now, they're considered 'clean' enough not to need them. That will change in the coming years, however.

Finally, the low-down-power thing is simple physics. Most turbocharged petrol engines and their diesel counterparts are pretty close on top-end power numbers (generally grouping around the 110-120hp level), but the difference you're talking about is torque - turning force, that low-down lugging sensation. Some of that is down to turbo design and the fact that a heavier diesel engine can accept higher turbocharger pressures, but most is simply down to the fact that diesel burns from compression ignition, which generates more torque and makes the engine feel more muscular at lower rpm. 

Expert answer

Hi Des,

You’ll need to check for a blown turbo (lots of smoke, no power) and also check that the diesel particulate filter hasn’t become clogged up if the mileage is low. The electric windows and ventilation fan are fragile, and make sure that the clutch is engaging cleanly as for some reason replacing the clutch is an expensive job on a Fluence.

Expert answer

Hi Laurie,

Well, the cee’d is a good, solid car so if you want to keep it going it will probably do for a while yet. At ten years old, there’s not going to be much value left in it either way, so a few extra months with it won’t dent your trade in. Which is good news, as there’s an all-new Kia Rio launching very soon, which will be on sale in Ireland before the summer. It’s roomier and much more sophisticated than the current model, and with your mileage forget about diesel – go for the brilliant little 1.0-litre turbo petrol.

Expert answer

Hi Debra,

It’s kind of difficult for us to diagnose a car over the internet unfortunately, but it sounds as if you may have a whole host of problems there. You’re quite right in that rattles are often something to do with either the timing belt or chain or the camshaft mechanism, but if you’re getting multiple fault codes on a diagnostic it could be that there’s a bigger issue that is causing lots of systems to develop issues. Have you brought it to a Volkswagen main dealer yet? That would be our recommended course of action.

Expert answer

Hi Peter,

With a short commute like that, you’re definitely better off with petrol and the Hyundai i20 is a fine car – roomy and well made and quite good to drive. Here are some of our reviews to help you decide:

Hyundai i20 review

Ford Fiesta review

Opel Corsa review

Volkswagen Polo review

Expert answer

Hi John,

It probably depends what year you’re talking about, but if you mean the current models then I’d say there’s not an awful lot in it in reliability terms. I’d suggest that the Fiesta will just shade the Clio in overall reliability but there won’t be a huge difference. If we’re talking much older versions, then it’s the Fiesta by miles.

Expert answer

Hi Kenneth,

Yes, but it will depend on the condition of the engine. Basically, as long as all of the wiring and electrics are in good condition and are properly covered up with their original panels and cable armour etc, then it should be fine.

Expert answer

Hi Niall,

The Mazda3 is the better car, to be honest. It’s bigger inside, much more refined and a little sharper to drive. The CX-3 is nice, but it’s basically a Mazda2 with ambition, so you are essentially getting a smaller car with a smaller interior. Now, I know you say you’re going to be own your own a lot in the car, so perhaps that’s not so important, but even so, the 3 is the superior machine in this case.

Saying all that, we realise that the CX-3 looks fantastic so we'd understand if you were tempted.

Here are our reviews to give you more food for thought:

Mazda3 1.5 diesel hatchback review

Mazda3 2.2 diesel saloon review

Mazda3 1.5 petrol hatchback review

Mazda CX-3 1.5 diesel review

Expert answer

Hi Paul,

I’m assuming you’re looking at about a 2005 model year? If so, the official combined fuel economy figure was 42.2mpg, or 6.7 litres per 100km, but the actual fuel consumption will depend significantly on both the condition of the vehicle and your own driving style.

Expert answer

Hi there, 

Assuming that’s the 2.4-litre petrol engined version of the Honda RE4 (better known to us as the third-generation CR-V), you’re looking at around 32mpg overall. We can’t give you more accurate data than that as the model was never homologated for European sales, so that number is extrapolated from the figure given for Australian market cars.