Expert answer

Hi Niamh,

That's a nice problem to have. Thanks for sending the details of the cars to us via email.

In my opinion, the BMW is the better driver's car and more practical. However, the Mercedes is faster and much sportier looking. It also looks to be better equipped. Both are quite reliable in general, especially with low mileages, so I wouldn't worry about that unduly.

Maybe get a Cartell.ie car history check to verify the mileage and that there is no outstanding finance when you decide which you prefer.

It's imperative that you drive both cars yourself for as long as the seller allows you, as, no matter what we say, your preference is all that matter.

Now, onto money. A figure of €4,500 seems a little steep as a cost to change given the asking price of those cars and the estimated value of your own. I'd be tempted to offer €2,000 and see what they say. Don't be afraid to walk away, as there will be plenty of other cars like this. Also consider selling your car privately for a better price - if more hassle...

Come back to us if you need anything else.

Expert answer

Hi Anna,

Sounds like either the coolant temperature sender unit or an issue with the air flow meter. These items may not be picked up by the diagnostics. In many cars you can just disconnect the air flow meter to test if it's working properly. Try that first. The coolant temperature sensor will be relatively cheap to replace.

Let us know how you get on.

Expert answer

Hi Noel,

There's a lot of choice out there within those restrictions and you've not given us your budget, so we'll give you a list of the cars we think are worth looking at to start with and you can come back to us if you'd like help narrowing the search:

1. Ford Focus 1.6 TDCi
2. Hyundai i30 1.6 diesel
3. Kia cee'd 1.6 diesel
4. Mazda3 1.6 diesel
5. Nissan Note 1.5 diesel
6. Nissan Qashqai 1.5 diesel
7. Peugeot 207 1.4 HDi
8. Peugeot 308 1.6 HDi
9. Toyota Auris 1.4 D4-D

The Volkswagen Polo and Golf and the Skoda Octavia are other considerations, though the 1.6 TDI engine was not introduced until 2010.

Let us know what you think

Expert answer

Hi John,

I'm afraid this is not something unique to the Kia Rio. Loads of new cars now come with this sealant kit instead of a spare wheel. Many motoring journalists in Ireland (ourselves included) are actively against this, but as car makers hope to reduce weight and cost this is the way it's going. It also frees up boot space - not that that matters to the hapless motorist stranded in the middle of nowhere with a hole in their tyre...

Final note - it's often not up to the Irish distributor to make the decision to offer a car with a spare wheel, but it's worth checking with a dealer before you put down a deposit if it's an option - and negotiate not to pay for it.

Expert answer

Hi Hagen,

There's a lot of choice on the market for that price. Here's a few cars we'd consider good buys for the purpose you've described:

Citroen C3, Fiat Panda, Ford Fiesta, Ford Focus, Honda Civic, Honda Jazz, Mazda3, Nissan Almera, Nissan Micra, Opel Astra, Opel Corsa, Peugeot 207, SEAT Ibiza, SEAT Cordoba, SEAT Leon, Skoda Fabia, Suzuki Swift, Toyota Corolla, Toyota Yaris, Volkswagen Golf, Volkswagen Polo.

I appreciate that's a long list, but we've left out plenty too! If you'd like more in depth help with choosing from the above come back to us.

Expert answer

Hi Teresa,

We spoke to Volkswagen and I'm afraid there's no permanent way to switch this off that it recommends. You'll just have to do it manually each time you start up if it bothers you.

From our perspective, this feature is becoming more and more common and we think it's a great idea. If all cars on the road used it think how much fuel could be saved in town. Likewise - and in contrast to what you've said - noise pollution would be reduced overall thanks to the lack of engine idling noise at traffic lights.

Don't worry about the starting motor wearing out either, as most cars with stop-start have heavier duty starters, along with systems to monitor their condition and prevent it being over used.

Expert answer

Hi Steven,

In my opinion this is NOT a good buy for the price and not suitable for your needs. The car looks in acceptable condition, but it already has quite high mileage, and you plan on adding over 45,000 kilometres a year to it. There are a lot of cars around for the same €4,500 with much lower mileage.

Come back to us if you'd like help finding something more suitable.

Expert answer

Hi Neil,

We're surprised we don't get this one more often to be honest! The simple solution would of course be to go for a car with three rows of seats - or something wide like the Fiat Multipla. I realise that might not suit though. It appears from our research that somebody has sensed a gap in the market and created a solution in the guise of www.multimac.co.uk.

Essentially the system is bolted to you existing car (with your rear seats still in place) and thanks to the narrower child seats can fit up to four children across the rear bench. The system is not cheap, coming in at over €2,000 by the time you add the required accessories, but it is likely to be cheaper than buying a new car.

We hope this helps.

Expert answer

Hi Justin,

It's not surprising to hear that the car won't go off-road - few do!

In terms of safety, the 2005 Volvo trumps the Discovery with a better Euro NCAP crash test rating.

The Volvo has a marginally better reliability record too, though most Discovery problems (affecting electrics and software) seem to apply to individual cars. Saying that it's worth ensuring its air suspension is in perfect working order. On the XC90 the injectors can play up, and they're expensive to repair, so get suspicious if the car doesn't start quickly.

Evidence points to the Volvo having the lower running costs too, with slightly better fuel economy and of course lower annual road tax due to the smaller engine. Maintenance will be costly enough in both cases, as could be insurance.

In cold hard facts it looks like the Volvo wins this battle Justin, but we'd not be put off the Discovery so easily - it's a great all-rounder as well.

Let us know how you get on.

Expert answer

Hi Sean,

With those options in front of us and no clue to each car's mileage and condition then we'd say there's a strong case for the Mazda6. It's significantly more spacious than all the other cars you listed for a start. That 2.0-litre diesel engine has plenty of grunt and is relatively economical, while the Mazda6 has a great reputation for reliability.

Hope that's of help