Expert answer

Hi Sean,

Stephen McDonnell from Volkswagen Ireland contacted us with some really useful information on this. Apparently the sensors themselves are quite robust, but they can be fooled into thinking the level is low by poor quality coolant. So, if there's more water than coolant in the car it may not register properly. Likewise, if there's oil in the water it could throw up a strange reading.

So, the advice is to have a look at the quality of the coolant and ask the buyer when it was last changed.

It could still be the sensor, but it's more likely that the above is the reason for the warning light.

Hope that helps,

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Hi Gerard,

Sorry for taking so long to come back to you, but we wanted to investigate this a little. I've asked several independent and franchised garages about this and nobody has come across this problem with the VW Group TDI engines.

How did you determine what actually happened? Just add a comment below this question.

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Hi William,

The first thing I would say is, do you really need a diesel? The diesel version of small cars tend to cost more and if you aren't really doing excessive mileage then you might not reap the benefits of owning one. For example a diesel Ford Fiesta costs €1,000 more than a petrol model and the annual road tax on the petrol model is only €156 - just €52 more per year than the diesel option. Often, in a small car, a petrol engine is really the best option.

The first car that you mention, the Fiesta, has been one of the real stars of the scrappage scheme and one of the best-selling cars in 2010 and for us, it is still the best supermini in the class. It is well built, drives really well and has pretty styling. The offers on the Fiesta for scrappage are very tempting and you can shop around to get the best deal, but you will find that there are greater discounts on the petrol models.

A car we rate here at CompleteCar.ie is the Volkswagen Polo and the 1.2-litre TDI BlueMotion model in particular is excellent offering outstanding fuel economy and ultra-low emissions. The Polo is the sort of car that you would like holding on to for four to five years as they age well.

There are obviously some incredible offers in the Renault range, as the company is offering by far the most generous discounts when it comes to new cars. You could have a petrol Clio from €8,990 under scrappage. There is a diesel version available too and with all the discounting this would come out as one of the cheapest five-door diesel superminis around.

I think if you are intent on diesel then perhaps you should look in value terms at a slightly larger car. I would be very tempted by a Hyundai i30 1.6-litre diesel. You can have one of these, which has five doors, is going to be very reliable and will cost you from €14,995 under scrappage, which is really excellent value.

However a car that has really impressed us of late is the new Nissan Juke. Here you are getting lots of car for the money. The diesel Juke starts at €20,195 (full price list here) and this car would qualify for scrappage as it has Band B emissions. 

That's a few for you to consider but do come back to us if you have more questions!

Expert answer

Hi Chris.

The price sounds about right for both cars at that mileage. You would pay quite a bit less if you got something with higher mileage. But that aside I would normally say that you should go for the Polo because it feels a little more substantial and might have a bit more street credibility for your daughter. However, with the Yaris you are still getting the current model, while there is a newer version of the Polo so for the time being it will hold its value a little better I'd expect. 

Obviously, safety will be an important consideration, and the Yaris scored higher in the Euro NCAP safety tests, achieving five stars compared to the Polo's four, so perhaps a reason to choose the Yaris. 

Toyota Yaris NCAP result

Volkswagen Polo NCAP result

Hope that helps.

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Hi Pete,

You don't mention the mileage or condition of your Focus, but the value to a dealer could be anything from €1,000 - €2,000 depending on those factors and what you are trading the car in against.

I think that with your 100km a day you are probably better off with a diesel car in terms of saving money on fuel. There are a few options in your price range. The Volkswagen Golf Diesel is one option. We like this 2006 model with really small mileage on it for €13,750.

But down in Cork there is probably a better buy in this 2007 Ford Focus 1.6-litre diesel (which is a better engine than the 1.8-litre unit) and this car has just 16,000 miles on the clock and is within your budget we would hope. If you liked your Focus before then I am sure you would love this newer model and at the price and mileage it would be hard to ignore.

Expert answer

Hi Mary,

A 2007 TDi Golf with your mileage would retail at a main dealer for about €13,000 - €14,000. You will most likely get offered a bit less than this, so perhaps you could expect around €12,000. You don't mention a budget but we can give you a few ideas. Most of the equivalent cars, post 2008 will be cheap to tax. 

For example, a 2009 1.6 TDi Golf, which has emissions of 118g/km (Band A) would cost you around €22,000. Here is an example of one from a main dealer in Naas. This would also be the newer shape model too, although I am not sure you want to go for another Golf? You could get something of a similar theme with the Skoda Octavia. A 2008 model like this costs around €17,000 and would give you a little more space and would still be in Band B with road tax of €156. 

Something slightly more SUV-like would be nice too. The Nissan Qashqai has a great reputation and owners love them. You could have a 2008 Qashqai, like this would cost around €19,000 and this example here has very low mileage. This still has emissions of 139g/km, so would only cost €156 to tax each year. This would be a great buy and isn't a major jump, financially. 

I think you might like the Qashqai, so perhaps you should give it a go?

I hope this helps. 

Expert answer

Hello Pat,

As a trade-in it would probably be accurate enough to assume that your Volvo would be worth about €2,000, although you might get a little more if you sold it privately.

When you say the Skoda Combi I am assuming that you mean the Fabia Combi, which is Skoda's small estate model. It is indeed a nice little car, but perhaps something of an odd-ball and it might not be the best car to choose if you are focusing on resale value. 

There is really only one car that stands head and shoulders above the rest when it comes to residual value in the small car segment and that is the Volkswagen Polo. If you look back at the classifieds you will notice that these command a used price significantly higher than any other car in the class, so if you are buying with a view to the car being worth something in five years, this is where you should be putting your money.

It isn't necessarily the best car in the segment though - for us the Fiesta would claim that particular title. There is no doubt that if your budget is restricted then you won't get a Polo with tons of equipment thrown in and it might be shorter on power than some of its rivals, but I'd go for a 70hp 1.2 Comfortline Polo in a safe colour (silver, black or red) and you will get decent money for this car in five years time.

I hope this helps

Expert answer

Hi Mark,

Thank you for contacting us. I can understand your dilemma in that you are going to be using your car quite sparingly, but you need it to be something that can last a long time. We know from speaking to you since that you have a Ford Focus that you might sell privately or hope to get around €2,000 for as a trade-in, so given that your budget is around €10,000, which is decent enough.

I take your point on the Ford Focus diesel estates. They tend to have quite hard lives as many are bought by business users more so than private individuals and they often have mega miles on them and hence can be tatty. They also often have the older 1.8-litre diesel, which is a bit of a tractor to be honest.

You mention that you are going to be keeping this car for about five years, so as such I wouldn't worry too much about whether petrol cars are falling out of favour because your used car is unlikely to be worth a whole lot in five years with another 50,000km on the clock.

You don't really do a lot of miles per year anyway, so running a petrol car might not end up being too expensive. Also you could perhaps look at buying something with slightly higher mileage (as long as it is diesel) because these cars would be well able to put up with your low mileage. For example, you mentioned the Volkswagen Jetta, which is a fine car. You could have a diesel version, with slightly more mileage, for well within your price range. Here is one from a SIMI dealer for €8,900.

I would be inclined to go for a VW Golf with your budget. You could have a 2005 model with low mileage for €9,000. This one here caught our eye. It comes from a main dealer and will have a good warranty. These cars will put up with lots of mileage and are also likely to hold their value well. This example would still have lots of life left in it after 50,000km and might actually be worth a few quid too.

I hope this helps. Come back to us by adding comments below if you want to discuss this further.

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Expert answer

In a word, yes. These cars were practically identical, so in theory their NCAP scores would have been identical too. Hope this helps.