Expert answer

Hi Phil,

That's a really tricky one. It's possibly to do with the immobiliser, as the car's keys are coded to a particular engine control unit (ECU) etc. Can your mechanic interrogate the ECU for fault codes?

Come back to us if we can help any further

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Hi Niamh,

It depends — do you want diesel or petrol? Any small-to-medium car with a 1.4 to 1.6-litre diesel engine is going to be very, very economical (e.g. the Toyota Auris, VW Golf, Ford Focus and Skoda Octavia), but if you want a petrol engine, the choice is a little different. Here, we’d be looking at the Volkswagen Group cars (Golf, Leon or Octavia) with the 1.0-litre or 1.2-litre TSI petrol engines, which have excellent economy, or a Peugeot 308 with the 1.2-litre PureTech engine.

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Hi Eileen,

At 5,500 miles a year, diesel is most definitely not worth considering — you’re not doing anything like the mileage you’d need to do if you want to claw back the cost of buying a diesel in fuel savings, and maintenance costs could be high. As for which model to get, it kind of depends on your preferences. I’m getting the vibe that you’re not keen on the Micra, so maybe have a look at the likes of the VW Golf 1.0 TSI, Honda Civic 1.0 Turbo, or wait for a little while for the all-new Ford Focus or Toyota Auris to arrive.

Expert answer

Hi Tommy,

First up, gearboxes: a six-speed gearbox in a given car usually means it is officially more economical than it would be if it had a five-speed gearbox, but that really will depend on the type of roads it's driven on and the driver's own style. It's not correct to say that a six-speed Renault, for example, is automatically more economical than a five-speed Ford though, as there are many more factors to consider. Best to look at the official combined consumption figures as a gauge - even though they're not usually achievable in the real world they are a good measure of one car against another.

A quick search on Carzone.ie reveals that your budget may get you into a 2009 Ford Focus 1.6 TDCi. There are plenty of different trim levels and 90- or 110hp derivatives available so take a close look at the specifications, history and mileage. Most of those are now in Band A4 with emissions of less than 120g/km and fuel consumption as low as 4.3 litres/100km (65.7mpg).

In terms of Golfs, it looks like you'd be lucky to get a 2008 version (the old one) for that same money, which means it'd have to be a 1.9- or 2.0-litre TDI engine. These cost more to tax (especially if you go pre-2008) and are a little less econonomical than the Focus above.

There don't seem to be many Renault Méganes fitting your description and budget, though a look elsewhere reveals that you may find a 2010 version at this price powered by the 1.5-litre dCi engine. This came in 86- and 110hp guises. The former is virtually as economical as the Focus and the latter only uses a little more fuel.

Finally, the Citroen C4: in terms of economy, the 2008 1.6 HDi 92hp engine is up there with the Focus etc, though there are more powerful versions available too.

In summary, if fuel economy is your priority then it's probably best to stay away from the older Golf, with its larger engine. The others are all very close and so it comes down to personal preference. We'd go for the Focus, not least because of the much wider choice of examples on the used market.

Come back to us if you need more assistance narrowing your search.

Expert answer

Hi Val,

The answer probably boils down to personal preference and the trim levels being compared. Also, Volkswagen offers the 1.2 TSI in both 85- and 105hp guises, while the Focus 1.0 EcoBoost comes in 100- and 125hp states of tune. Purely in terms of numbers, the 100hp Focus is the most economical, though not by very much, and all four sit in Band A4 for tax.

Personally speaking, the new Golf moves the game on in terms of fit and finish, plus refinement and it's quite well equipped. The Focus still has an edge in terms of driver appeal, but there's not such a wide gap between them to make that a deciding point for most.

Best bet is to go test drive examples of both cars for as long as you can - and in as close a specification to what your budget allows as possible. I'd put my own money into a Golf.

Expert answer

Hi Michael,

Average price for a 2011 Focus should be around the €8-9,000 mark depending on condition and history. The official fuel consumption for that model was 4.4 litres per 100km, or 64.2mpg. 

Expert answer

Hi Teresa,

There are a couple of problems with the Zafira diesel, mostly to do with the diesel particulate filter (it gets clogged and has to be replaced, which is expensive), the exhaust gas recirculation valve (which jams, and which means you need to replace it), and the dual-mass flywheel. On the inside, check for faulty central locking and rear seats that won’t lock into position when you lift them up out of the boot. Economy should be around the 40mpg mark, depending on how you drive it.

Ford Focus 1.6 diesels of similar age might have turbo trouble too (if the engine feels hesitant or down on power), and you need to listen for creaking steering racks, check for faulty air conditioning and listen for noisy suspension.

Expert answer

Hi Fintan,

OK, well you’re kind of cutting across class boundaries there — a Focus and a Mondeo are really quite different cars, with the Focus being smaller, cheaper and arguably more fun to drive, and the Mondeo being more expensive, but bigger, comfier and more refined. That goes pretty much the same for the Opel Astra and Insignia, or the Volkswagen Golf or Passat. So the first thing you need to work out is what you want, and what you need, and whether or not you need the bigger car, or if something more compact will do.

Of the brands you’ve mentioned, the VWs will probably do the best in reliability terms, with Ford being the most enjoyable to drive, and Opel falling somewhere in the middle, but you should also be considering the likes of the Toyota Auris and Avensis (best for reliability), the Peugeot 308 and 508 (stylish, good to drive) and the Mazda3 and Mazda6 (reliable and both very good to drive). 

Expert answer

Hi Daniel,

Sorry to hear about the Scirocco - that 2.0 TDI version is great.

A quick browse of Carzone.ie with your budget and needs in mind brought up a few interesting options:

- Audi A3 2.0 TDI 140 - in Sport or S Line guises for maximum style - loads around
- BMW 118d M Sport - quite rare, but great to drive
- BMW 320d Coupé - you'd have to go pre-2008 with your budget, but current style at least
- Honda Civic Type S - 2.2 diesel is great and post-2008 is taxed according to emissions
- MINI Cooper D - loads around in all different colours at your budget

I've picked out the cars I reckon you'll like and I've left out things like the Volkswagen Golf and regular Ford Focus (among others).

What do you think?

Come back to us and let us know if we're on the right track.

Expert answer

Hi Sean,

I don't think you're asking for too much actually, so long as you don't mind a car that's a few years old. There's plenty of choice at that price point. You've not told us how big a car you need or how far you drive each year so we're keeping an open mind there, but only shortlisting diesel saloons and hatchbacks. Options include:

- Ford Fiesta 1.4 TDCi

- Ford Focus 1.8 TDCi

- Ford Mondeo 2.0 TDCi

- Nissan Note 1.5 dCi

- Peugeot 407 1.6 HDi (only if it has a full service history)

- Skoda Octavia 1.9 TDI

Come back to us if you need help narrowing things down further.