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Hi there,

I’d be slightly careful. Remapping can unleash more power and torque, but you need to be very careful that the chip comes from a reputable source and that it won’t unduly affect the reliability and fuel consumption of the engine. I’d have a word with the guys at the Volkswagen and Audi owners club of Ireland, VAGE, as they tend to know their onions and would be able to give you more precise advice.

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Hi Justin,

Two best choices here would be a Mazda6 2.0 TD from around 2003 or a Ford Mondeo Zetec diesel of similar vintage. As long as they're in decent nick, reliability shouldn't be a problem (the Mazda will do better than the Ford but not perhaps by the margin you might be expecting) and both are safe and spacious.

What do you think?

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Hi Martin,

We asked Audi Ireland about this one. Here's the answer:

"The standard screen for the MMI system is automatically retractable. It electrically pops up upon engine start and reclines upon engine cut.

It only operates for satnav if that is fitted to the car. If the screen does not automatically retract then the Audi owner should get his car checked by an authorised Audi service centre.

There is a button that you can click to retract the screen, but this is only once the car has started. It should automatically come up next time the car starts regardless."

Sounds like you need to bring the car into Audi I'm afraid. Let us know how you get on.

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Hi Peter,

A brilliant car, albeit one with a couple of shortcomings relative to its German rivals. It's probably the best-looking car in the class, and the 500-litre boot is a match for the BMW 5 Series Touring and Audi A6 Avant (though much smaller than that of the Mercedes-Benz E-Class). It's utterly delightful to drive too, better even than the much-praised BMW, with brilliant steering and a comfy ride.

On the downside, the interior is a step behind the Germans (not enough space, old-fashioned touch-screen infotainment system, narrow front seats) and the fuel tank is on the small side, limiting your touring range and making the car feel thirstier than it actually is. The 2.2-litre diesel engine in 190hp form is the best all-round to go for, but the lower power 163hp is a bit cheaper to buy and you'll hardly ever notice the difference in day-to-day driving. Or, you could get the best version; the 272hp 3.0 D V6 diesel – a properly quick, practical car that.

Here's our road test of the XF Sportbrake

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Hi John,

Great car, the Mazda6, and lovely to drive. Two things though: you may well find that 2.0-litre petrol to be both a touch thirsty and, consequently, very hard to move on again come resale time. And at that mileage it's imperative to make sure that the car has a full service history and that major maintenance work such as timing belt replacements and oil changes have been done.

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Hi Tony,

New or old? Frankly, they're all good. The current car is slick, massively spacious, lovely to drive and, aside from occasionally poor fuel economy, terrific ownership prospects. 

The previous generation is all of that with slightly less slick styling inside and out. Make sure you go for the later, post-facelift model that uses Mazda's own 129- or 180hp 2.2 diesel engine.

Finally the original - made from 2002 - it's a landmark car. Reliable, fabulous to drive and quietly handsome. They're super-cheap now and a perfect low-budget purchase.

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Hi Michael,

I'd go for the Mazda above the Volvo every time in this case. The old S40 is much smaller and less spacious than the Mazda6 and the Japanese car is also excellent to drive. 

Mazdas are generally exceptionally reliable, but on the 2.0 diesel just watch for low oil pressure and a sticky manual gearshift. Both can be fixed but they are recurring problems. Check the air conditioning system for leaks too.

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Hi David,

I'd suggest flogging both cars and getting yourself into a newer Audi A3. They're comfy, sweet to drive, reliable and easy to sell on again eventually. Hard to go wrong with it, really. Lots to choose from so be fussy and make sure yours has a full service history and reasonably low mileage.

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Hi Vittorio,

You've got it all answered yourself there. The BMW's overall residual value will indeed be slightly better, but, long term, the Mazda should prove to be much more reliable and rugged. Both are excellent to drive. The BMW's classic rear-drive chassis is slightly the superior, but the Mazda's muscular steering feel and firmly sprung chassis makes it one of the best front-drive saloon chassis around. 

Nothing major to watch for on either - just make sure there's a fully stamped up service history and check the BMW carefully to make sure that all the electrical bits work and that it's been topped up with high grade oil at each service. Both cars may have been driven hard by previous owners (many will be ex-fleet) so check carefully for thinks like uneven tyre wear or noises from underneath that indicate worn or out-askew suspension.

Let us know how you get on

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Hi Janice,

Yes, but perhaps not the most economical in the class. Going on personal experience, a Mercedes-Benz E 200 or E 250 CDI will average in the high forties mpg whereas a BMW 520d or an Audi A6 2.0 TDI should easily get over the 50mpg barrier in everyday driving.