Expert answer

Hi Chris,

Very economical — you should expect better than 50mpg. Reliable? Not so good — you should expect lots of electrical problems, and check the engine carefully for any turbo issues. 

Expert answer

Hi Peter,

It certainly sounds like the alternator is not doing its job. Could you have disturbed the wiring from it when you fitted the fanbelt? Easiest way to check is to check the voltage across the battery terminals with a multi-meter while the engine is running. It should be well over 12V if it is charging.

Please be careful doing this though and only if you're confident working under the bonnet. If you're not, best leave a qualified mechanic or auto electrician have a look.

Let us know how you get on.

Expert answer

Hi Peter,

Nope, there appear to be no major issues with the Lacetti other than a tendency for water to get into the electrical system, causing some problems starting the car and with the alarm. It's not a complex problem, but it can take an age to find where the water is getting in so check and make sure that all the electrics are working properly on the car and if possible test drive on a wet, rainy day.

There have been some reports of Lacettis suffering from very high fuel consumption, but that could just be down to individual driving style.

Let us know if you'd like help finding an alternative.

Expert answer

Hi Ed,

Do you mean a Jaguar XF? The XK was the fast V8 coupe, and never had a diesel engine. If it is the XF, then they’re pretty solid cars. The diesel engine needs careful checking to make sure that the diesel particulate filter is working properly, and that the cam belt has been changed every 160,000km. Also listen for clonking suspension and check for cracked alloys, and make sure all the electrics are working properly. If it has a full service, then it should be fine.

As for the Merc, that generation of E-Class was very badly built, and you need to check and make sure that it’s been back in for all its ‘service recalls.’ Check for leaks from the transmission and the radiator, and the air mass sensor often triggers an engine warning light. Electronics are deeply suspect, and if the car vibrates under acceleration, the gearbox could need replacing.

Expert answer

Hi Geraldine,

Updated answer:

In 2015, Ford gave the Focus a major update, with new styling (check out that Aston-Martin-esque grille at the front) and an upgraded interior (new dials, fewer buttons and the option of the big, bright SYNC2 touch-screen system). The trim levels remained the same - Focus, Style, Zetec, Zetec + and Titanium with the range topped off by the sporting ST model.

Standard equipment on Focus models includes tyre pressure monitors, emergency brake assist, hill-holder clutch, 'MyKey' (which restricts speed, distance and stereo settings for the spare key - good if you have teenagers in the house), front electric windows, capless fuel filler, steering wheel stereo controls, height adjustable drivers' seat and split-folding rear seats.

Style adds a USB connection and Ford's SYNC connectivity for the stereo, manual air conditioning, body coloured door handles and power mirrors, 16-inch alloys, leather steering wheel and gear shifter and map pockets in the back of the seats.

Zetec models get front fog lights, lower, Sports suspension, a heated windscreen, sportier seats and an upgraded centre console.

Zetec + adds keyless start, drive lumbar support, 17-inch alloys, LED rear lights and a 'premium' centre console with a sliding arm-rest.

Titanium gets the same keyless start but adds dual-zone climate control, cruise control with speed limiter, all-round power windows, mesh radiators grille, an 'overhead console' with a sunglasses holder and integrated reading lights, velour upholstery, rear cup holders and ambient lighting.

ST models get all of that plus some extra sporty bits and seriously tweaked suspension and steering, while the current limited Black Edition and Red Edition come with manual air conditioning, curtain airbags, red stitching everywhere, scuff plates and exterior bodykit, acoustic windscreen and metallic pedal covers. 

Original answer:

Ford doesn't actually make an LX Focus any more. Instead, the basic Focus model is now just known as plain old Focus, and it comes with a CD player, USB connection, electric front windows and door mirrors, remote central locking, electronic stability control and, on the five-door hatch, a rear spoiler.

Next up is the Edge model, which adds air conditioning, a 3.5-inch colour display for the stereo, a leather steering wheel, heated mirrors, trip computer with economy driving monitor and body coloured door handles. Then there's the Zetec, which, over and above the Edge gets 16-inch alloy wheels, Quickclear windscreen, centre arm rest with stowage box and 12v plug, sports suspension and sportier front seats.

The Titanium takes all that and also gives you split-zone climate control, a start/stop button, cruise control, jazzier wheels (still 16-inch in diameter though), hill start assist, LED rear lights, aluminium scuff plates, footwell lights, a rear arm rest and a leather gear knob. Please bear in mind that these are current Focus model trims, and if you're looking at older models then they will be different.

Expert answer

Hi Angela,

Clearly any such warning needs to be taken very seriously and we'd recommend not driving the car until it is fixed.

We do know, however, that the Stilo regularly suffers from damaged wiring under the driver's seat that can lead to such issues. It could be as simple as a single wire that needs replacing. Bring the car to a mechanic or auto electrician and suggest that.

Let us know how you get on

Expert answer

Hi Gavin,

Here's the checklist for a 2002 Volkswagen Golf (hatchback or Estate):

- Check that alloy wheels have had copper slip grease applied behind them at each service, or the alloy can react with the steel hub and cause corrosion.

- Make sure the headlamps are in good condition, as they're a bumper-off job to replace.

- The rear screen wash-wipe can leak and run into the lock, shorting out the alarm and central locking. The door locks in general can give trouble.

- Most Golf engines need a cambelt change every 40,000 miles (64,000 kilometres). Diesel engines tend to get through a lot of oil.

- Clutch release bearings can wear out easily leading to a hefty clutch action.

- Ignition coils can burn out.

- A whirring noise could be a water pump failure.

- Slow starting or engine management lights often mean a temp sensor has failed.

- A tapping noise on start up may mean you need a cylinder head rebuild.

- If the car has sluggish acceleration it could be a crank or camshaft sensor failure.

- And if there are any issues with any of the main instruments then he whole display has to come out and be replaced.

That's a long list, we know, but if the car you're looking at passes those tests then it's likely to be a good one.

Expert answer

Hi Tom,

Power steering aside (that's strange...) it really sounds like you might have connected the battery incorrectly or shorted the battery somehow. Have you any way to safely test the battery?

If you're not confident in finding the problem for yourself we'd really recommend you get an auto-electrician or a mechanic to take a quick look for you.

Let us know how you get on.

Expert answer

Hi Frank,

This is a pretty solid buy in general, though insist on one with a decent service history and do a thorough check of the car. Electrics can have gremlins in them so check each and every switch and button. Likewise, if it's automatic, walk away if the gearbox is very jerky and holds onto the gears for a long time even when you've not got your foot down. Watch out for knocking in the suspension too, as that could mean costly repair bills.

Hope that helps

Expert answer

Hi Hugh,

Odds are that this is being caused by the switch that operates the warning. Open the door and take a look for a spring-loaded switch and inspect it for damage. After that it's worth checking the wiring to it. Then it's probably best to consult a mechanic or auto-electrician.

Let us know how you get on