Expert answer

Hi Shane,

As with any current turbodiesel model, the first thing to check is the diesel particulate filter. Drive the car at a steady 2,500rpm in fourth gear for around 16km and see if the DPF warning light goes out. If it does, all is fine. The 2.0 TDI engine needs a cambelt change every 110,000km so make absolutely sure that's been done as it's an expensive job and a total engine failure if it goes when you're driving.

If the car has the MMI infotainment system then make sure that all the functions are working, as problems are apparently hard to diagnose and expensive to fix. Check the front passenger floor mat for dampness - the air conditioning system can sometimes flood with water draining down from the windscreen and leak onto the floor. Glovebox catches and (more worryingly) seatbelt anchors are prone to wear, so check both. Watch for tracking issues on S-Line cars with sports suspension. A dull thudding noise from the front might be a worn anti-roll bar drop link too.

Hope that helps

Expert answer

Hi Sean,

According to the official figures, the comparison in terms of combined fuel economy is this: the 520i gets 28.8mpg, the 525d gets 36.2mpg and the Lexus IS 250 gets 31.0mpg. A clear win for the diesel 5 Series there, but it's worth remembering that these figures are taken from laboratory samples and you may have to knock off as much as 25% to get the real-world driving figure.

Hope that helps

Expert answer

Hi, it's a little difficult to come up with a solid value for the vRS model as there just aren't that many on the ground here, but a reasonable valuation seem to be between €14,000 and 16,000 and you can knock off about €1,000 to get what you'll be offered as a trade-in from a dealer. Sorry we can't be more precise than that.

Let us know how you get on

Expert answer

Hi Angela,

Clearly any such warning needs to be taken very seriously and we'd recommend not driving the car until it is fixed.

We do know, however, that the Stilo regularly suffers from damaged wiring under the driver's seat that can lead to such issues. It could be as simple as a single wire that needs replacing. Bring the car to a mechanic or auto electrician and suggest that.

Let us know how you get on

Expert answer

Hi Simon,

You've picked a car from a changeover year, but with that mileage I'm going to assume it's the older generation model you're talking about. If so, check the door handles for loose fit and make sure it has had a cambelt change at 130,000km. If it's a diesel make sure its oil has been regularly topped up (A4s seem to burn a lot), if it's the Multitronic auto then make sure the gearbox oil has been changed every 60,000 kilometres or so.

Other than that, engine sensors can fail and drop the car into creep-home mode, so make sure your test drive takes in a lot of different driving styles and speeds. Check the diesel particulate filter (drive for a steady 16 kilometres at 2,500rpm and if the DPF light on the dash doesn't go out then it needs replacing). Listen for noisy steering racks on full lock. A knocking noise from the front suspension could be a worn-out anti-roll bar too.

Hope that helps

Expert answer

Hi Fran,

We really like the Kia cee'd. It's a high quality offering that does everything well, is decently specified, refined, comfortable and relatively spacious. We wouldn't ever have compared it to the Renault Clio though, as it competes with the Mégane. The cee'd is bigger and more comfortable than the Clio. Saying that, the Clio is more interesting looking for sure and drives just as well.

In terms of diesel engines, Kia offers a 1.4- or 1.6-litre CRDi diesel and Renault has a 1.5-litre dCi unit. The latter and the 1.4-litre engine put out 90hp, but the Clio feels quicker and is a lighter car. Likewise it's better on fuel and a little cheaper to tax.

Try to test drive both in a scenario that reflects your daily driving. The cee'd is more refined and a better long distance cruiser, for example.

Feel free to come back to us if you need more assistance.

Expert answer

Hi Patrick,

Before looking at the logical stuff, we'd say the Kia Sportage. We prefer how it looks and drives.

There's virtually no difference in price at the entry-level to both ranges. They're both powered by the same 1.7-litre turbodiesel engine, have front-wheel drive and emit 139g/km for €280/year road tax. Both Kia and Hyundai offer a range of trim levels and they're both quite well equipped really.

Kia's cheapest four-wheel drive version is a little cheaper than the equivalent Hyundai (both powered by a 2.0-litre diesel engine) and both are available with an automatic gearbox - though the ix35's is cheaper.

Other than all that, Kia's seven-year warranty covers up to 150,000 kilometres of driving and comes with European roadside assistance for three years. Hyundai's 'Triple Care Plan' is only for five years, but the mileage is unlimited. It includes roadside assistance and vehicle health checks.

So in summary there's little to separate these cars on paper. With your budget in mind it's worth delving deeper into what you'll get for your money in each model, but really it probably comes down to individual choice. And for us the Kia Sportage is the way to go.

Let us know what you decide upon.

Expert answer

Hi Eileen,

A lot here depends on what kind of car, and indeed what size of car, you’re looking for. There’s a huge choice out there, and most models now have at least the option of an automatic gearbox. Overall, it’s as ever hard to get away from the trusty VW Golf in cases such as this. A 1.6 TDI diesel or 1.2 TSI petrol with the DSG automatic gearbox would seem ideal.

Expert answer

Hi Helen,

An old RAV4 will be pretty thirsty, to be honest. Official fuel economy for the 1.8 petrol model, from 2004, was 38mpg, and around town I’d expect it to do not much better than 28mpg. The 2.0 diesel version is only 1mpg better off on the official figures, so don’t expect miracles from one of those either.

Expert answer

Hi Jon,

Well, it depends which model you mean, but I’m assuming it’s a 1.4 VVTi petrol with a manual gearbox. If so, the original official fuel economy was 42.2mpg, or 6.7 litres per 100km. Depending on how well the car has been looked after in the 14 years since then, it’ll probably do around 35mpg in daily driving.