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 Hilary,

We’ve found a good few for sale on Carzone, so try having a look here. As for UK imported cars, we wouldn’t be too worried about buying one, as long as you’ve thoroughly checked out the history with Cartell.ie and background of the car first.

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 Catherine,

OK, so what you need here is something spacious (kids, even just the one, take up a heroic amount of space, as you know), something economical for all that annual mileage and something comfy so that your buttocks survive all that mileage. I think you should stay with the current rough size of car, as some of the best bargains can be found in the mid-size saloon segment.

First up is a Volkswagen Passat. Ideally, you'd get the 1.6 TDI BlueMotion version, a car in which we once managed to drive from Galway to Glasgow and back on one tank of fuel. Or, what about a Ford Mondeo? You'll easily get a 2.0 TDCi model for that money, and there are very few cars quite so comfy on a long journey. Even BMWs and Mercs can't always match the Mondeo for seat comfort.

Of course, if you fancy the high life, and are prepared to compromise on space a little, then there's the BMW 3 Series. You'll get a 320d or 318d for that kind of budget, but shop around to make sure you get one in a dark metallic, with leather and preferably an automatic gearbox.

Finally, there's the Mazda6. Bit of an unsung hero of this segment, it's brilliant to drive, spacious, good looking and you should be able to track one down with Mazda's excellent 2.2-litre diesel engine under the bonnet. Reliable as it gets, it should chomp through your annual mileage with nary a worry. Find the even more handsome estate version if you can.

Come back to us if you need help narrowing this down.

Expert answer

Hi Brian,

For all the 2.0 CRDi diesel variants, whether it's 2WD or 4WD, the change interval is 120,000 kilometres or every eight years, whichever comes first. For the 2.0-litre petrol model it's 90,000km or six years, as is the ultra-rare 2.7-litre petrl version.

Expert answer

Hi Gavin,

Here's the checklist for a 2002 Volkswagen Golf (hatchback or Estate):

- Check that alloy wheels have had copper slip grease applied behind them at each service, or the alloy can react with the steel hub and cause corrosion.

- Make sure the headlamps are in good condition, as they're a bumper-off job to replace.

- The rear screen wash-wipe can leak and run into the lock, shorting out the alarm and central locking. The door locks in general can give trouble.

- Most Golf engines need a cambelt change every 40,000 miles (64,000 kilometres). Diesel engines tend to get through a lot of oil.

- Clutch release bearings can wear out easily leading to a hefty clutch action.

- Ignition coils can burn out.

- A whirring noise could be a water pump failure.

- Slow starting or engine management lights often mean a temp sensor has failed.

- A tapping noise on start up may mean you need a cylinder head rebuild.

- If the car has sluggish acceleration it could be a crank or camshaft sensor failure.

- And if there are any issues with any of the main instruments then he whole display has to come out and be replaced.

That's a long list, we know, but if the car you're looking at passes those tests then it's likely to be a good one.

Expert answer

Hi Louanne,

It depends on a huge range of factors, including what kind of mileage you cover, what size of car you need and what you deem a reasonable budget. The standard answer to all motoring queries might be appropriate here: buy a Golf. 

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 Pierce,

Prices for 2007 Passat diesels are currently hovering between the €10,000 - €14,000 mark, so expect a bid of around €10,000 if you're trading in at a dealer. Mind you, the high mileage of your car will knock that back a bit more, so don't be surprised at bids of below €10,000.

Let us know how you get on.

Expert answer

Hi Srinivas,

It's a terrible cliche but you can't do much better in this market than to pick yourself up a good second hand Volkswagen Golf. It's spacious, comfy and reliable, and so long as you go for diesel and a dark or metallic paint job you should have no trouble moving it on again.

Hope that helps