This is a curly one isn’t it? You stand a decent chance of returning the info screen back into English, only if it’s already in English so you can drill down into the menus in the first place. You might be able to flick through the menus until you find the word 'English' (start in Settings if you can decipher even that much). Perhaps the owner’s manual gives some insight into how the language is set.

But, honestly, the quicker way is likely to be to take the vehicle to an LDV dealer and have somebody familiar with the menu system sort it out for you.

It’s tempting to think that this might happen every time you change or disconnect a battery, but who knows? Equally, it could be a glitch within the car’s body computer that controls the dashboard and many other functions in a modern car.

This is very likely to be an electronic problem based on the fact that if the transmission works properly in manual mode, there’s nothing internally wrong with it. But when you shift it back to automatic mode, there’s a stray or incorrect signal being sent to the on-board computer. In turn, that’s possibly throwing the operation into limp-home mode which is why you suddenly have a loss of power.

Limp-home mode is, as the name suggests, designed to get you home without doing further damage to the vehicle. As such, it can limit power, limit top speed and even lock you out of certain gears to ensure this happens. Have the vehicle scanned to see if any error codes are being thrown up by the computer.

The first question is have you tried changing the setting on the throttle controller? The U4 setting on this unit is slightly towards the lazy side of throttle response. Maybe a switch to U8 or U9 will give the throttle response the perkiness you are looking for.

A poor quality snorkel can definitely impede airflow and, therefore, power production, but so can a poor tune, dirty fuel filter, worn injectors, worn fuel pump, a blocked DPF, gummed up intake manifold and about a thousand other things. Is the turbocharger working properly and all the associated plumbing tight and leak-free? This can also cause a loss of power due to lost turbo-boost.

You really need to have a fiddle with the throttle controller to determine whether the problem as you see it is a lack of throttle response or, indeed, a lack of performance in an outright sense. For the record, 11.1 litres per 100km is not, depending on how and where you drive, unusual for this vehicle.