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Hi John,

Skoda says every four years or 60,000 miles (just under 100,000 kilometres).

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Hi Michael,

If you want to go petrol then there are few better options than Volkswagen's 1.2 TSI turbo, and when it's fitted to the Skoda Octavia, you've got a near-perfect combination. Drive it gently, and you'll probably get very little difference in the overall fuel consumption compared to your old 407. That engine hasn't really been in the market for all that long, so it's a little hard to get a handle on whether or not there are any reliability landmines out there, but in general we've heard nothing bad. 

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Hi Luke,

That light means that something somewhere in the engine that affects the emissions has gone wrong. It really could be anything and may not be really noticeable to the driver. It's still worth having the car checked with a diagnostics reader at some stage, as it could be doing long-term damage. Also, it won't pass its NCT with that light on.

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Hi Aisling,

You won't go far wrong with the Octavia. Get the 1.6 TDI and you've got a potential 55mpg car with lots of space and terrific build quality and reliability. If you're looking for alternatives, then there's always the Volkswagen Golf (mechanically the same as the Skoda but less spacious inside) or the Ford Focus 1.6 TDCi (terrific to drive and good value but poor standard equipment and they're tight in the back).

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Hi Harry,

It's very difficult to assess such a thing remotely, but here are a few things to check:

1 - Are you carrying extra weight in the boot?

2 - Check your tyre pressures, condition and alignment - makes a big difference.

3 - Check the cleansiness of your air filter. Very important.

4 - Have it serviced if it has not been in a long time.

5 - Check that none of the brakes are binding - jack up each corner in turn and with the car out of gear and the handbrake off you should be able to freely turn each wheel. If not, the brakes may be binding and need to be looked at.

6 - Only when you've exhausted the simple stuff should you look into getting the car hooked up to a diagnostic machine. Some versions of the TDI engine had problems with injectors and turbos that could lead to higher fuel consumption, but the fix is expensive.

Let us know how you get on

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Hi Des,

It depends entirely on your priorities. If you favour style and badge appeal, go for the Golf. There are few better cars. If you're a practical type, get the Octavia as it has significantly more rear seat and boot space than the Golf and is more or less identical to drive. 

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Hi John,

Yes, I'd say you're onto a good one there. Obviously, a well used 14-year old Astra isn't going to come with a bundle of trade-in value attached, so I think the price looks pretty fair for the Octavia, especially given the low mileage. Honestly - we see press cars with higher miles than that!

As for the petrol/diesel side of things, I think you'll be fine in the 1.2 TSI. At 11,000 miles a year you're well within the bracket to keep burning petrol rather than switching to more expensive diesel (more expensive to buy the car, not the fuel of course) and the good news is that the 1.2 TSI engine is exceptionally frugal. In fact, I once drove one for 200km before I realised that it wasn't diesel, so slow moving was the fuel gauge. In my defence, it was late and I was tired...

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Hi Rasti,

I'd say that kind of mileage puts you just over the tipping point for diesel, but if you must insist on petrol then go for the 1.6 - that 1.4 is so underpowered that you have to work it hard to get any performance out of it, and that really hurts the fuel consumption. As for buying privately, just keep your wits about you. The Octavia is a solidly reliable and well made car, which lowers the risk, but don't accept anything without immaculate paperwork and a proper, fully-stamped service history. None of this my-brother's-a-mechanic-and-he-looked-after-it rubbish. Worth getting a history check (from the likes of Cartell.ie) and maybe an AA inspection too. Be especially wary of cars with outstanding finance still owing on them.

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Hi Jon,

I'm afraid this sort of thing is nigh on impossible to diagnose from afar as there are so many factors at work. Here are a few things to look at, but really, you need a mechanic to take a look:

- Hook it up to a diagnostic machine and get any error codes - that could save time

- Perhaps the glo plugs aren't working - they'd be needed in this cold weather (if it's diesel)

- Maybe the fuel tank pump isn't working. Turn the ignition on and you should hear a buzz from under the rear seats

- Is there sufficient fuel in the tank?

Best of luck with it - let us know how you get on

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Hi John,

The only other brand with a comparable warranty back in 2010 or 2011 would be Hyundai, which has (and had) a five-year, unlimited mileage warranty. Of the cars you've mentioned, in descending order of preference, we'd go for Octavia, Passat, Sportage and Qashqai. If it's out of warranty, you can always get an aftermarket one. 

What do you think?