Expert answer

Hi Joe,

The last-generation S60 got a bit unfairly hit by various Irish tax regimes (it never had an engine under 2.0 litres for instance), but it's actually a cracking car - well built and superbly comfy, as Volvos tend to be. Keep an eye out for minor electronic glitches (the cruise control and electric windows seem to be vulnerable points) and if the engine is 'lumpy' when you're switching it off, you're looking at injector issues - expensive ones.

In terms of day-to-day running costs, it should do 44mpg with a manual gearbox (a little less with the optional automatic) and emissions of 175g/km mean you can tax it for €750 a year. That's pricey, but better than buying a pre-2008 model (2008-2009 was the last full year of production) when the engine capacity would land you with a €1,034 tax bill. One running cost to keep an eye on is front tyres. The S60 is quite nose-heavy and has a massive turning circle, things that tend to banjax the front boots. Check any potential purchase for worn rubber and budget for at least a new set every year.

Expert answer

Hi Tony,

It's the electrical systems that are the E-Class's Achilles' heel. Mercedes had so many problems with the 2002-2009 model that it actually had to replace entire interiors and indeed entire cars for some irate customers. So, check everything very, very carefully and if even one little switch isn't working, walk away. If the car has had remedial work done by Mercedes, ask to see the paperwork to see exactly what was done. Check too that the automatic gearbox selects gears quickly and easily. 

The battery is prone to running flat too, if the car is left standing for a few days, and the computer that controls the brakes can go haywire too. Also check the paintwork for poor finish or flaking.

Expert answer

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 Teresa,

In general it's used to describe an automatic gearbox that can also be switched into a mode where the driver takes control of the gear changes. There's no clutch operation needed. Most of the time, what is referred to as a semi automatic transmission uses the same components as a manual gearbox, but the clutch operation is done by electro hydraulic means. Some people refer to the latest generation of dual-clutch gearboxes as semi automatics too.

In summary, it's an automatic, but with extra functionality. Note that they're not usually as smooth to drive as conventional automatics.

Come back to us if you need more information.

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Hi Emmet,

It is, actually - one of the few mid-2000s Mercs you could say that about. The 200k engine is a solid old thing, although it does sound worryingly like a broken cement mixer when you accelerate hard. The complex folding roof mechanism is also pretty good, but be careful if the previous owner chose to leave the roof mostly up, as the electric motors can freeze in place if it's not exercised regularly.

Expert answer

Hi Colm,

Taking the C 200 CDI as a baseline, the official figures are 58mpg for the manual, 55mpg for the automatic. Did you read our road test of the car?

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Hi Robert,

The weak areas on an X-Type are the suspension and transmission. Keep an ear out for gearbox whines, knocking suspension and rattling steering columns. Wheel hubs were known to fail on earlier models but a 2010 version should be fine. Worth noting that the X-Type seems to have higher repair and maintenance costs than an equivalent BMW or Audi - rather odd for a car that shares so much with a Ford Mondeo. 

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Hi Noel,

All things being equal, it'll be the Merc that'll do better. I'm comparing the 2011 model years for both as I'm assuming you mean the previous generation of Mercedes-Benz ML-Class. 

According to the official figures, the ML 280 CDI automatic gets 30.1mpg on the combined cycle, while the Mitsubishi Pajero 3.2 DID automatic returns 26.6mpg. 

Hardly surprising really: the Mitsubishi has a five-speed gearbox compared to the Merc's six-speed unit, plus it's lugging around a heavier body and seven seats (the Merc's a strict five-seater).

Hope that helps.

Expert answer

Hi Ruadhan,

That, I'm afraid, is a question with too many variable answers. Second-hand vehicle values are like stock market values - they go up and down and often rather unpredictably. There are a few rules of thumb, though...

1. It's got to be diesel. Yes, we (and others) have tried to educate the motoring populace that diesel power doesn't automatically mean better economy or lower running costs, but right now the market is diesel-crazy and if it doesn't sip from the black pump, it's not going to hold on to its value.

2. The lowest depreciating cars are, obviously, the most popular models. So the likes of the Ford Focus, Volkswagen Golf, Nissan Qashqai, Hyundai Santa Fe, BMW 3 Series, Audi A4 and so on will always hold on to their value the best. Check the list of the top-ten best-selling cars on the market - these are your depreciation heroes.

3. What about depreciation villains? Anything that the market doesn't trust, really. Estates tend to fare especially poorly, anything with a French badge is suspect and if it's Italian, forget it. You'll lose your shirt on any of these.

4. Spec is king. You can have the most in-demand car going but if it's painted bright yellow and has green seats, you're never going to shift it. So, to keep depreciation at bay, stick with dark metallics and subtle interior tones. Pale cabin colours tend to fare less well when it comes to wear and tear, so the market prefers blacks and greys on the inside too. If it's an executive car, it has to have an automatic gearbox. Anything with factory-fit air conditioning and Bluetooth telephony is looking good, leather is always helpful but other expensive toys don't always help a car hang on to its value.

Hope that's all of interest

Expert answer

Hi Michael,

It kinda depends on the spec of the cars in question. If, for instance, it's a 2.0 160hp Insignia versus a 110hp 316d, then go for the Opel. If it's a 320d, then go for the Beemer.

Come back to us in the comments if you'd like more help.