Maintaining your car

Expert advice: what the ECU does and why it’s so vital for our car

ecu
All this is computer controlled. The ECU is normally positioned at the top and back of the engine bay (Picture iStock/jaym-z)

Modern cars are more like computers on wheels and central to that is the ECU. If the engine is the heart of the car, the Electronic Control Unit or ECU is its brain. Your car may develop a fault that you think is mechanical but actually the real culprit could be the electronics, caused by a malfunctioning ECU or one of its sensors.

The ECU is now such a crucial and integral part of our cars that I think it’s worth understanding exactly what it does.

What’s in a name?

Continue reading

Clean Air Day 2019: how to reduce your emissions from driving

clean air day 2019

Thursday 20 June was the UK’s Clean Air Day 2019. Organised by charity Global Action Plan, Clean Air Day is the UK’s largest air pollution campaign. It’s been conceived to urge people in Britain to think about how they might reduce their emissions and help improve air quality.

According to the World Health Organisation (WHO), road transport accounts for up to 30 per cent of particulate emissions in Europe. Much of that comes from the exhaust pipes of internal combustion engine vehicles. Here we reveal how car drivers can reduce their emissions and make every day a Clean Air Day.

Plan your trip

Continue reading

Expert advice: how you know if your clutch is about to fail

clutch failure
The clutch looks simple but it’s a fundamental part of a car (Picture iStock/irman)

Clutch failure can leave you well and truly stranded The clutch is one of those parts of the car that many of us take for granted. That third pedal sitting to the left of the accelerator and brake is fundamental to how a manual transmission works.

That’s where a bit of self-diagnosis can pay dividends. If you know your clutch is on its way out, you can book your car into a garage before it leaves you high and dry. And you can shop around to get the best deal possible.

The good news is clutches frequently don’t just fail. There will be some tell-tale symptoms. Here’s what you should look out for.

What’s a slipping clutch?

Continue reading

Motoring costs quiz: guess the prices of these car-related items

motoring costs

How good are you at knowing the cost of things? Motoring costs are crucial for most of us. And how much we pay to keep our cars on the road is one of the questions drivers will frequently ask. But do you know the prices of things associated with motoring? Our cunning quiz reveals the cost of 10 articles to do with car ownership.

Continue reading

Expert advice: What to do with a chipped windscreen

chipped windscreen
As soon as cracks like these start spreading you can’t repair them. But that isn’t always the case… (Picture iStock/LivingImages)

You might have noticed many of our roads are in a pretty shocking state. And a degrading road surface doesn’t just mean potholes, it also results in debris on the road surface. These small stones can be thrown up and hit the screen of following vehicles. On a 30mph road, that small stone will probably have an impact speed with the glass at the equivalent of 40-50 mph. It’s hardly surprising then that there’s a decent chance it’ll take a chunk out of whatever it hits.

If debris hits the windscreen and damages it, there are plenty of reasons to get it fixed. After all, if a windscreen is chipped in certain areas it’s an instant MOT failure. Here’s what I think you should do, why, when and how.

Continue reading

Expert advice: try my car cold weather hacks on freezing mornings

cold weather hacks

Follow our tips below and this need not be you (Picture iStock/sonsam)

Standing outside on freezing cold mornings scraping ice off your car has to be down there with visits to the dentist and paying tax. All are necessary for very good reasons but that doesn’t make them enjoyable.

I can’t help you with your teeth or tax, but I can give you some pointers to make it easier to get your car ready for the road in the mornings.

Air-con’s your friend

Continue reading

MOT changes reveal how many ‘dangerous’ cars are on Britain’s roads

MOT changes

Changes to Britain’s MOT test prove an alarming number of cars are on our roads in a potentially lethal state. Official figures show that nearly a third (32 per cent) of MOT failures were due to a dangerous defect.

In numbers, that’s 1.13m cars categorised as ‘dangerous’ after failing their MOT between the introduction of the revised test in May 2018 and the end of the year. This means the car is considered an immediate risk to road safety. The owner is then banned from driving the car until it’s been made road legal again.

However, the Government’s Driver and Vehicle Standards Agency (DVSA) says more than half of MOT failures are preventable. Drivers, it says, could avoid the money and aggravation that an MOT failure can cause by conducting simple maintenance.

What are the MOT changes?

Continue reading

Simple tips that will reinvigorate your car’s paintwork for 2019

car's paintwork

Returning your car’s paintwork to tip-top might be easier and less expensive than you think. What a car looks like can be blighted by pockmarked paint, unsightly scratches and displeasing dents. However, canny drivers can put all these right with just a little bit of elbow grease. Read on to find how you can return your car’s paintwork to showroom fresh.

Small scratches

Continue reading

Expert comment: our New Year’s resolutions will help prevent breakdowns

New Year's resolutions

Do you keep to your New Year’s resolutions? Or do you forget them as soon as you’ve made them? No matter how quickly you give up going to the gym three times a week, I hope you’ll stick to the five resolutions here. Not only might they save you a heap of money before the year’s out; they could also prevent you having to sit at the roadside in a conked-out car.

Some recent research found that millions of drivers don’t even perform the most rudimentary maintenance to prepare their motor for winter. Here’s a handful of checks that will keep your car motoring long after memories of New Year’s parties have faded.

New Year’s resolution 1: check the oil

Continue reading

Quiz: 12 tasty motoring teasers from 2018

Quiz 2018

How well do you remember 2018? Our fun quiz looks at some of the news from the year just gone. Laws to do with car tax, the MOT test and learner drivers all changed. And there was plenty of eyebrow-raising research too.

How much attention were you paying? Take our test to find out. And don’t worry if you get any of them wrong: our questions have been designed to help you become a better, safer driver. Here we pose 12 teasers – one from every month of the year – to see how much you remember.

Continue reading

Seeing the light: alarming cost of replacement car headlamp bulbs

car headlamp bulbs

LEDs are the future of car lighting but they can come with a hefty price tag (Picture © DS Automobiles)

Drivers of some of our most popular small cars could have to pay as much as £846 for replacement headlamp bulbs. New research reveals that the cost of mending broken headlights is escalating because increasing numbers of cars are relying on LED technology.

The study by What Car? shows that owners of the Volkswagen Polo, the country’s sixth best-selling car, will spend £18 on a new halogen bulb. Meanwhile, it’ll cost drivers of the upmarket GTI version £846 because it has LED headlamp units. Owners of the Suzuki Swift SZ3 or SZT models will pay just £4 for a replacement bulb. However, drivers of the more upmarket SZ5 version will fork out £684 to replace the xenon unit. Read on to find out how much you might have to pay for a new headlamp bulb.

What kind of lights does your car have?

Continue reading

Expert comment: Why the Slow down, move over campaign makes sense

Slow down, move over

The roadside can be a dangerous place. If you see something like this ahead, slow down and give it plenty of space (Picture iStock)

If you’ve ever had to get out of your car at the roadside, you’ll know what a hostile place it can be. It’s no exaggeration to say that for some people it can be deadly. To raise awareness about this, we at Green Flag have come together with the AA and RAC to support the ‘Slow down, move over’ campaign.

We’re asking drivers to pay more attention to what’s going on at the side of the road. We all know how easy it can be to have our attention diverted when driving. Whether it’s by something interesting on the radio or pondering a problem at work, we don’t always think about what’s going on outside our own little bubble.

Slow down, move over campaign in detail

Continue reading

Expert advice: winter car faults and simple fixes to resolve them

winter car faults

When the weather turns cold you really don’t want this to be you (Picture iStock/Sestovic)

Here in the UK, we might have had an exceptionally warm summer followed by so far, a mild autumn. But winter car faults are just around the corner, waiting to plague our motors and interfere with our best-laid plans.

Every year at Green Flag we see an increase in call outs as the weather gets colder. And it’s always the usual suspects. But if you act now, you can ensure you and your car are prepared for winter’s worst. Here are four popular faults and solutions for them.

Winter car faults 1: Non-start, fuel flooded

Continue reading

Expert advice: how to know when your brake pads need replacing

Brake pads

Emergency stops can be frightening enough without having dodgy brakes too (Picture iStock/RapidEye)

Braking and brake pads are vitally important when it comes to road safety. We’re frequently so consumed with how fast cars can go or the economy they return that we forget how important stopping is. And anyone who’s had any kind of brake failure will testify to what a terrifying experience it can be.

But some recent research revealed that the confusing way garages measure brake pads isn’t helping. It could mean drivers are leaving it too long to have their pads changed. Or they might even be changing them too soon, without getting the full amount of wear out of them.

How is brake pad wear measured?

Continue reading

Part-worn tyres: 9 in 10 chance of buying a dodgy one

Part-worn tyres

Tyres might be on the scrap heap but they can still be sold legally in the UK (Picture iStock/Birdofprey)

If your car needs new tyres you might be shocked at how much replacement rubber can cost. But while often cheaper than new, buying second-hand tyres can have serious safety implications. New research has found that nine out of 10 retailers selling used or part-worn tyres are trading in illegal rubber.

Charity TyreSafe and Trading Standards have spent the past five years investigating part-worn tyres on sale in the UK. They discovered that just 13 of the 152 dealers they visited were selling roadworthy tyres. TyreSafe chairman Stuart Jackson said: “As far as we’re aware there is no other retail sector with such an atrocious track record.”

What exactly are part-worn tyres?

Continue reading

Stop unnecessary work on your car. Find out what jobs really need doing

Unnecessary work

If you’re not sure about repairs, ask the technician to point them out to you. (Picture iStock/Sturti)

Has a garage recently suggested you need new brake fluid, an anti-freeze drain and refill or a fuel and oil flush? If so, how do you know whether it had to be done or was unnecessary work? Research by Green Flag has revealed that UK drivers spend £3.4billion every year on work by garages to their cars that doesn’t need doing. That’s around £90 per car per annum.

The problem stems from drivers not having the knowledge about their cars to question whether work recommended by garages is really required. More than a third of drivers (39 per cent) say they have no idea what’s checked when their car has its annual MOT roadworthiness check. But this is when garages often say jobs need doing.

Read on to discover which 10 jobs Green Flag believes should ring alarm bells if they’re suggested by a garage. And find handy hints on how to check whether the work really should be done.

“Your brake fluid needs changing”

Continue reading

Expert advice: how to replace a car’s battery

battery

Replacing a battery used to be so simple (Picture iStock/Igor-Kardasov)

We usually think that cold weather takes its toll on car batteries and causes them to fail. But it’s frequently hot weather that does the damage. Heat dries batteries out, causing them to lose their charge more quickly.

Then when temperatures fall, oil thickens up, it takes more current to turn an engine over to start it, the battery struggles to perform as it should and eventually fails.

One thing’s for sure: no one wants to be stranded with a dud battery. Bearing that in mind, it’s a good idea to think about replacing your car’s battery when the weather starts to cool. Here are some tips on doing that.

What kind of battery does your car need?

Continue reading

Know your car jargon, learn to speak mechanic and don’t get ripped off

car jargon

They might both be talking English but does what he’s saying make sense? (Picture: iStock/photo_concepts)

Every industry has its own language; jargon that only the people working in the business understand. The car industry is no different. We’ve all had a mechanic take one look at our car, shake their head, suck air through their teeth and mutter something using words that might as well be in another language.

The result is people don’t trust garages. One study found that nearly half of drivers think technicians hiding behind confusing car jargon have ripped them off. According to property company Pentific, mechanics rank alongside politicians, car sales execs, journalists, estate agents and builders for being untrustworthy. But you need never be baffled again. Here we explain six pieces of commonly-used car jargon.

Big end

Continue reading

Dangerous bacteria in air-con: drivers urged to get theirs cleaned

Dangerous bacteria

All sorts of nasties can come out of your car’s air-con (Picture iStock/Humonia)

Do you know what’s living in your car’s air-con? You may never have considered it but a car’s air-conditioning system is a haven for bacteria. Scientists have even discovered that some of the bugs can be dangerous, leading to meningitis, urinary tract infections and sceptic arthritis.

Our expert has already written this useful guide on why you can’t expect air-conditioning to work effectively if it’s not regularly serviced. But new research has found out exactly what inhabits our air-con. In America, where air-con has been common in more vehicles for longer, they even have a name for the effect that exposure to these bacteria can have: Sick Car Syndrome.

What is the most common bug in our air-con?

Continue reading