Expert answer

Hi Paddy,

The Honda CR-V has a great reputation for reliability in general, but a surprising number of things go wrong. I'm going to assume you mean the 2.2-litre CDTi diesel version. Here's what we know about:

- Earth connection for ABS can cause various error codes, but is easily fixed.

- The ABS hydraulic modulator itself can deteriorate, meaning poor braking. That's expensive to fix.

- Issues with the air conditioning are usually to do with a faulty (and easy to replace) relay.

- The dual-mass flywheel can break up and cause vibration.

- The EGR valve sticks due to carbon build-up, causing poor running, stalling and intermittent power loss.

Along with all those things to look out for, there are loads of creaks and noises the car makes, but all can be fixed at relatively low cost.

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Hi Ollie,

Generally speaking, you should be OK, as that 30-min run each day should be enough to keep a DPF hot enough to clean it out, but that’s if and only if that 30 mins is all run at high-ish speeds, say above 80km/h most of the time and in a lower gear. If you’re spending a lot of time in stop-start traffic, I think a petrol option might still be the better one. Mazda’s 2.0-litre petrol engine can be a bit thirsty, but the 1.4 TSI option in the Passat and A4 is a very frugal engine, and still has peppy performance.

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Hi James,

As discussed via email:

That generation Audi A6 is in general a reliable car, but not fault-free. Some owners have had no problems, while others have been plagued. The Multitronic transmission is not renowned for being the most trouble-free, though units made pre-2006 have the most problems. Also, the gearbox's fluid should be changed at 55,000 and 115,000 kilometres (or 35,000 and 75,000 miles) so the car you're looking at should have had two changes by now. Check that it has and then look in detail at how the gearbox works. Does the 'PRNDS' indicator on the dash flash? Is there hesitation? Is it easy to get reverse?

No matter what turbodiesel car you look at you'll hear of turbo problems from some owners. Most of the time it's likely to be due to poor oil maintenance. So check the car's service history in terms of oil changes and that the oil level itself is right. They do use a bit of oil.

While you're checking out the car in detail, make sure the air conditioning can produce freezing air in just a few minutes, as these have been known to fail.

I'm probably making this sound worse than it is! I'd buy an A6 for myself - it's a good car - you just need to know what you're looking for and not get caught out by one of the few badly maintained examples out there.

Let us know how you get on.

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.

Expert answer

Hi Tom,

Expert answer

Hi Joe,

In general this is a sound purchase, though there are a few things to look out for as ever. We'd advise readers to get as full a service history as possible, even on a relatively old car such as this. On the diesel models check for smooth running and have a look at the condition of the oil. Walk away if it's filthy or there's blue smoke in the exhaust. Black smoke under acceleration shouldn't be an issue though.

The 1.8-litre turbocharged petrol models are known to have issues with their coil packs, while many have air conditioning problems. Just make sure all switches work as you'd expect and check that the air conditioning gets cold within a few minutes. Minor electrical gremlins seem to be this car's biggest problem, but don't let that put you off - just thoroughly check the car you're considering buying.

As ever, we'd advise you to bring along a mechanic to inspect the car before you commit any money.

Let us know how you get on.

Expert answer

Hi Andrew,

You're in an enviable position. I'm going to go on the assumption that four-wheel drive is a must-have (though a rear-wheel drive car on winter tyres is as good as a 4x4 without in terms of stopping and changing direction as well as traction...) and given your comment on fuel we'll say it has to be diesel too. Don't worry, there's still fun to be had.

The 3.0 TDI V6 engine found in certain Audi A6s and A8s is a gem and partnered with quattro four-wheel drive seems made for you. The equivalent rear-wheel drive BMWs are a little more engaging, and the 330d/530d's engine is also fantastic, though we suspect you want four-wheel drive. Try a 535d out for size and you might change your mind and invest in winter tyres instead!

As much as we admire the X5 and Touareg, and they're good value on the used market at the minute, we can't help but feel they'll be just as difficult to sell on in a few years.

Another excellent alternative to the (quite common) Audi A6 is the allroad quattro version, based on the A6 Avant. Seems to tick all the boxes.

Let us know if we're on the right track here.

Expert answer

Hi Martin,

There were actually some significant mechanical changes for the Type-S, including wider-track rear suspension, an upgraded interior and a more aggressive body kit. That said, it’s still not THAT sporty, and a regular Civic is near enough as good to drive. The 2.2 diesel is an excellent engine, with good economy and very solid reliability. As for an ‘air energiser’ I’m guessing this is some kind of aftermarket add-on? Beware such things — they tend to promise much and deliver little, and usually aren’t worth the money. 

Expert answer

Hi Jim,

There's no doubt that the Range Rover Sport (like all big SUVs) are harder on their tyres and brakes than an average car. Parts aren't cheap either and fuel consumption, even on the diesel models, is relatively high - though again, normal for the class.

Early examples were the subject of three recalls concerning brakes, the transmission and rear seat belt buckle, but once the car you're looking at has had those things recitified there shouldn't be an issue. The Range Rover Sport has a below average reputation for reliability, but we know people with faultless examples as well, so perhaps some buyers have been unlucky. Issues seem to come mostly from the electrics and the suspension so check everything is in working order and best to have some form of warranty from the dealer.

If you need more detailed help please do get in touch.

Expert answer

Hi Fergus,

You've not told us the type of engine in the car, but for your information only the 1.6-litre petrol and 1.9-litre TDI diesel units have timing belts. The change interval is 75,000 miles (just over 120,000km) so if the car you're looking at has one of those engines then it should have had a timing belt change by now.

Other than that insist on a full service history and regardless of what the dealer says it's worth getting a car history check on Cartell.ie, as it covers UK and Northern Ireland cars in full.

Hope that's of help.