Expert answer

Hi Razanne,

If this is the diesel version, it's possible that the issue has nothing to do with the stop-start system at all, as its engine is known to develop problems with the fuel injectors that could lead to poor running and stalling.

Otherwise, all we can suggest is that you read our Why won't my car's stop-start system work? feature to see if anything helps - and persevere with your mechanic to get to the bottom of the issue. An auto-electrician might be worth visiting, too.

Expert answer

Hi Robert,

Yes, it’s a very solid shortlist, although obviously we can’t comment either way on the Tiguan plug-in hybrid as we’ve not driven one yet. As for the Honda and the Toyota, the Honda is roomier and rather more engaging to drive (better for all those twisty roads) so is probably the one we’d go for. The new RAV4 is well worth looking at, though, and it has impressive performance, so it’s good for all that overtaking. Links to our reviews below:

Honda CR-V Hybrid review

Toyota RAV4 Hybrid review

Expert answer

Hi Gloria,

Stop-start systems generally don't have any settings as such. They are on by default and will automatically turn the engine off when appropriate. The driver can manually switch the system off when the car is running.

So basically it's on or off. Leave the system on for (slightly) better fuel economy in slow traffic situations where you might be stopped for prolonged periods of time.

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Hi Noel,

No, it does not appear so. The daytime running lights are LED and the headlights are a projector design. There is automatic turning on of the lights when it is dark, but not of the high beam. It does not appear to be on the options list from Hyundai Ireland, either.

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Hi David,

Right, I’m going to make a couple of assumptions here — one is that this is the 140hp 2.0-litre TDCI diesel that we’re talking about, and that it’s the post-2010 facelift model. If so, then CO₂ emissions for the automatic model are 149g/km, and that means you’re in Band C for motor tax, which is €390 a year.

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Hi Marlene,

In terms of reliability, I wouldn’t have any worries — Hyundai’s reliability reputation is iron-clad, and besides; if you did have any trouble with it, there’s that five-year, unlimited mileage warranty backing it up. One word of caution though. The Kona’s best engine is the 1.0-litre T-GDi petrol version, which is a sweet engine with good economy and might be a better ownership bet unless you’re doing big miles every year. Alternatively, it’s well worth checking out the new all-electric Kona, which has a really long one-charge range. 

Read all our Hyundai Kona reviews here

Expert answer

Hi Simon,

We’ve double-checked this with Audi, and yes — under certain circumstances you can have both the upgrade pack and the free auto gearbox on your A4. The 191 complimentary Style Pack includes a metallic paint finish, ambient lighting pack, heated front sports seats, comfort armrest and front parking sensors. The Audi A4 Style Pack also comes complete with 18-inch alloy wheels on SE models and 19-inch alloys on the S line, offering a customer saving of over €4,000 for the SE and €4,500 for S line model. It’s only available in limited quantities though, and only up to the 28th of February.

As for the automatic gearbox offer, that’s a dealer-led promotion, where dealers are offering this on certain models, so you might need to ring-around your nearest Audi dealers to make sure you can avail of that on the car you want.

Expert answer

Hi Tom,

It kind of depends on what price range you’re looking at. The more expensive you go, the more available such options are. The likes of a BMW 5 Series or an Audi A6 would be the easiest to find with all of these options on the one car, but it becomes much more problematic if you’re shopping lower down the price lists. Come back to us and let us know your budget for more useful assistance.

Expert answer

Hi Enda,

For starters, as far as I can work out, all new hybrids currently on sale are automatic, so there's no such thing as paying a premium for that side of things. On a trade-in, I'd suspect that your aunt will get no more than €3,500 for the Ibiza, even though the mileage is very low, so let's work with a budget of around €23,500.

That would get the top-of-the-range Toyota Yaris Hybrid, which is a perfectly good car for low mileage use by one person. The Yaris has been updated recently and it remains a very solid buy. For a few grand more, the entry-level version of the brand new Toyota Corolla Hybrid is within reach, which is a far more substantial car, but outside the budget you mentioned.

There are no other new hybrid cars on the market within budget, I'm afraid. At this price point, we'd suggest that an efficient petrol engine is possibly better value, but if your aunt really wants a new hybrid, then the Yaris is not a bad option at all.

Expert answer

Hi Janie,

On the parking sensor issue, it just seems to be a bit of a quirk with the Audi Q7 that to get the front sensors on when moving forwards, you have to press the parking sensor switch, although they do, as you point out, come on automatically when you select reverse. We’re not sure why this is, but it might be worth a visit to your dealer to see if there’s some finicky bit of software code that can be re-set to activate them automatically at low speeds.

As for the stop-start system, if could be a few things. Obviously, there may be a fault, in which case get the car booked into your dealer for a check-up. Or it could be that you’re doing a lot of low-mileage, short runs, which aren’t allowing the engine and other systems to get fully up to temperature. Stop-start isn’t a simple on/off system — it’s controlled by the engine management and that won’t let stop-start activate if it thinks that the engine hasn’t warmed up enough (stopping and starting a cold engine can be damaging) or if it has detected that you have a lot of high-energy drain systems (air conditioning, demisters etc) running. Try and analyse your driving the next time you go out and see if any of this fits. If not, head for your dealer.