Expert answer

Hi Stephen,

Cars registered in 2005 are taxed according to their engine size, so that Focus (which has a 1,753cc engine) is taxed in the 1,701- to 1,800cc band. Since the 2013 Budget that costs €636 per year to tax.

Hope that helps

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Hi Shane,

That’s a Mk1 Focus, yes? They’re OK, but obviously the youngest is a teenager by now, so you need to be careful. Check the oil for signs of water mixing in — they do develop problems with the heat exchanger. Check that the engine runs smoothly, as the TDCi had one of the first high-pressure direct injection systems and it’s delicate and needs regular proper servicing to work well. Black smoke could mean a blown boost pressure valve. Inside, check for leaking windscreen (wet carpets), broken gear lever springs, faulty ‘QuickClear’ windscreens and inoperative instruments.

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Hi Fergal,

This engine downsizing is prevalent and not just by Ford, and it has been made possible thanks to advances in engine technology, such as high pressure fuel injection and turbocharging.

A close look at what's offered by Ford Ireland reveals that the Mondeo 1.6 TDCi is the 115hp version, where as the Focus can be had with that and a cheaper 95hp unit. The raw data reveals that the 115hp Focus does the 0-100km/h sprint in 10.9 seconds - a second faster than the Mondeo with the same engine. Likewise, the Focus is more efficient with lower emissions and fuel consumption - though the differences are not as big as you might think.

Essentially, it boils down to the engine's torque output. This engine produces 270Nm from as low as 1,750rpm, which is more than enough to deal with a car the size of the Mondeo. Naturally a 2.0-litre diesel with the same technology will be more impressive again, but the 1.6 is just fine.

For the record, we find that Ford's 1.6-litre TDCi engine has a very narrow power band, but once you learn to keep the engine within that it never feels slow. Obviously, driven like that it won't come close to its official fuel economy figures.

Hope that all helps.

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

Expert answer

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.

Expert answer

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.