Dashboard Warnings and what they mean

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To get started select the service required from the available service options we have below.

ECU / Engine Warning Light

If your engine warning light is illuminated, often it’ll be accompanied by some unusual symptoms – these could include a lack of power, as the car has gone into ‘safe’ mode to protect itself; intermittent stuttering as you press the accelerator, caused by a misfire; or another fault which could alter the normal response from the engine.

Sometimes this can be down to something as small as a faulty electrical sensor, although sometimes it can be a larger mechanical issue.

DPF / Diesel Particulate Filter

Most modern diesel vehicles are fitted with a diesel particulate filter, which removes harmful soot from the exhaust gases to reduce emissions.

If this is faulty it’ll trigger a warning light and could not only mean you’re releasing a toxic cloud of black smoke every time you press the accelerator but that you could be causing damage to your engine and other components. Get this checked out straight away as DPFs can become blocked and can be expensive to replace.

AdBlue Low

Modern diesel cars use an additive, called AdBlue, which is injected into the exhaust where it reacts with toxic pollutants and converts them into harmless air and water. If it runs out between services, then it must be refilled. A yellow symbol of a bottle being poured is often used to indicate that the tank is running low. When it turns red, it needs refilling urgently; the car will fail to start if the AdBlue runs out completely. Not all manufacturers use a bottle. Others show what looks like an ice cream cone lying across a diesel particulate filter. We will top up your Vehicle’s Ad-blue on every routine service that we perform.


The invention of the airbag was a major step forward in vehicle occupant safety, so if your car isn’t working properly, get it seen too.

A faulty airbag potentially won’t go off in a crash, meaning you and your passengers won’t be as well protected from any potential injuries. The other possibility is that your vehicle’s airbag could deploy when you least expect it, giving you a nasty shock – or even actually causing­ an injury – and an expensive fix to put right.

Tyre Pressure Monitor

Once the preserve of high-end, super-expensive luxury saloons, many more cars are fitted with tyre pressure monitoring systems today.

These systems can sense a deviation away from normal tyre pressures, signifying a puncture. Generally, the device will flash a warning light on the dashboard, highlighting you should take a look at the tyre pressures. We carry a wide range of sensors in stock.


If this “ABS” warning lights up while you’re driving, it means that something is wrong with the system. As you know, your anti-lock brakes work to keep your car in contact with the road safely, so it’s important to diagnose the issue as soon as possible. Keep in mind, every time you turn on your vehicle, the system does a self-check, and may light up for just a few seconds. If it goes away immediately, your system is in working order.


Without any coolant, your car’s engine would get so hot it could effectively ‘weld’ itself together. If you see the coolant light show up on your dashboard, it could mean coolant levels are running low, so check the gauge on the side of the coolant tank under the bonnet and top up if necessary. NEVER REMOVE THE PRESSURE CAP WHEN THE VEHICLE IS WARM.

In conjunction with a temperature gauge reading well into the red, it could mean your engine is overheating. This is either the sign of a larger problem – like a water pump, radiator or symptomatic of something less major, like a leak in the system somewhere, meaning you’re engine has run low on coolant and got too hot.

Brake System / Brake Fluid

Your vehicle’s brakes are arguably the most important feature on your car, so if there’s a warning light flashing on your dash highlighting there’s something wrong with the braking system, it’s best to get it checked out right away.


You should see your battery charge warning light when you first turn your car on, but if it doesn’t go out a few seconds after the engine starts, there could be a problem with your car’s electrical system.

This could be to do with a faulty alternator, faulty battery, a bad connection or damaged cabling somewhere in the engine bay. If your car isn’t charging its battery when moving (the job of the alternator), then you could eventually run out of electrical power and grind to a halt.


Just like your car’s water or coolant warning light, you might see an oil warning light flash up if the oil temperature gets too high, the level is low or the oil pressure too low. It’s the latter two you want to avoid at all costs.

Oil is what lubricates your engine, with the oil pump used to spray the fluid to all corners of your engine. If temperatures get too high, or even worse, the level is low or oil pressure drops, the effectiveness of the lubrication can be reduced or lost altogether.

The result? Expensive engine damage, so if you see this warning sign, stop and phone us right away to arrange recovery.

Engine Oil Level

Top up the oil as soon as possible. As part of your regular maintenance checks, you should check the engine oil level using the dipstick or risk the low-level light coming on when the quantity of oil in the engine has fallen to a critical level. The symbol of a dripping oil bottle is a sign that you need to top up. Not to be confused with the red oil level light!

Service (Light May Differ)

Servicing your car on time is a mandatory part of maintaining a reliable and fully functioning vehicle. it’s also a good idea in general. Many cars will monitor the time and mileage covered since the previous service and alert you when the next is due with a spanner symbol or similar.

Other vehicles use condition-based servicing or variable service intervals. They monitor wear and tear on components, and then calculate when the next service is needed. You’ll often see a service symbol with a mileage countdown, showing how far you can drive before the service is due.