Electrical & Lighting 114 Products


Whatever you drive, your visibility is essential. Carrying spare car light bulbs is not only sensible, but a legal requirement in some European countries. Use our registration tool or select your vehicle below to find a range of car bulbs for your vehicle.


It's a legal requirement to ensure your car's headlights are working correctly, and no vehicle should be on the road without them. If you need to replace your headlights, you can find bulbs at excellent prices today at CMG Eurospares. Vital on dark evenings or during harsh weather conditions, your headlights are the key to lighting the way. Not only do they make the road a safer place for you to drive on, they also ensure others can see you at a distance. When your headlights break, they need to be fixed as soon as possible.


By law, working indicators are a must - you will not pass your MOT or a police safety inspection without them. There is no doubt that failing to indicate when turning is a common cause of road accidents. To prevent this happening to you, you must replace your indicator bulb as soon as you realise that is isn’t working. Thankfully, indicator issues are among the easiest to diagnose. After all, your bulbs either work or they don’t. Whether they stop working completely, or they’re blinking rapidly, these are symptoms of two issues: a broken indicator relay, or a dead bulb. As indicator bulbs are fairly inexpensive, it won’t cost a lot to buy some as a means of troubleshooting the issue.

Rear Lights

The rear lights on your car serve two important functions: to help you see when driving in poor light and to communicate your actions with other drivers. Most drivers take their rear lights for granted. While you may be used to just getting in your car and starting it up without a second thought for your lights, you will soon notice when they fail. Most rear light assemblies combine stop lights, indicator lights (for braking and turning), and fog lamps. Your rear lights must comply with all the relevant vehicle legislation. It is your duty to make sure your rear lights are working properly in both low and high beams. To test your rear lights, you will need an assistant. First, ask them to apply the brakes, and check that all your rear lights illuminate. Second, ask them to turn on the left and right indicators, and finally your fog lights (if you have them). Any lights that do not illuminate when you switch them on may need replacing. When buying replacements for your car, please note that newer or older editions of the same model may require different rear lights. While the difference may only be aesthetic, making the wrong choice could mean that your new rear lights do not fit your car.

Licence Plate Lights

Although you know your car’s registration, it’s a legal requirement that your licence plate can always be clearly seen by other road users. Licence plate lights ensure visibility in all conditions. Being able to easily read licence plates is vital to the continued safety of the road and can help to save lives in the event of an accident and emergency. Because of this, faulty or broken licence plate lights will cause your vehicle to fail its MOT and can result in you being stopped by the police.

Interior Lights

Car interior lights are those handy little lights that allow you to peek at your road atlas or clip in your seatbelt when it’s dark outside. Without it, even the simplest of tasks would become much harder, so be sure to fit a quality product if yours breaks. Most cars have at least one ‘dome light’ or ‘courtesy light’, usually located on the ceiling in between the driver and front passenger seat. These lights provide illumination for carrying out small tasks inside the car, and sometimes come on when people enter or exit the car. Interior lighting has also been added to the bottom edge of the dashboard of some vehicles to provide a little extra illumination. Every now and again, particularly in older vehicles, the bulbs in car interior lights can blow. And while a lack of interior lighting won’t prevent the vehicle from performing at its best, it will quickly become a great inconvenience.


The alternator works by charging up the battery to power the starter motor, ignition and all other electrical components, replacing the generator used in pre-1960s cars. If this fails, your car's electronics will follow. Replace yours with one of the options below. If your car starts to die – the lights dim; the radio stops – chances are it’s the alternator that’s at fault, not the battery itself as people usually assume. The alternator is located near the front of the engine and is driven by the crankshaft. The four components of the alternator are the stator, rotor, diode and voltage regulator. The rotor spins inside the stator, producing electricity, which is converted by the diode from AC to DC current to be used by the car’s battery. The voltage regulator makes sure the current flowing to the battery does not get too high and ‘cook’ the battery. If the charging voltage is too low in the alternator, the charging system could fail, causing the car to break down. Factors that might affect the charging voltage are drained batteries or worn/loose cables. It’s always best to check out the whole charging system – battery, voltage regulator and alternator – if power fails. If it turns out you need to replace the alternator.

Starter Motors

The starter motor is like the car’s heart – it’s what gets the whole system going. Used to start the engine, if a starter motor fails, the vehicle won't turn over or crank – and will need replacing. The starter motor may need replacing if it’s not turning fast enough or if the part is seized. There are a number of reasons why the starter may not be working despite a good battery: once you have eliminated simple mechanical or electrical faults, it's much easier to replace the whole component as opposed to stripping it down and fixing the fault. It’s essential to disconnect the battery before removing the starter motor (and its attached solenoid in pre-engaged motors) so that you don’t accidentally cause a short circuit. While a single fault might be repairable, it is usually more economical to fit a new starter motor if a number of faults are found.

Tyre Pressure Sensors

If your car has tyre sensors, it can check its own tyre pressure and will let you know when they need inflating. Keeping your tyres inflated at the right level will prolong their life, increase your ability to stop at short distance and reduce the amount you spend on fuel. The purpose of the pressure sensor in your car is to warn you when you need to inflate one or more tyres. A yellow indicator (usually in the shape of a horseshoe with an exclamation mark) will light up on your dashboard to let you know when things aren't as they should. While manufacturers tend to make their own proprietary sensors, there are two main types of pressure monitoring system: indirect, and direct. An indirect tyre sensor is part of the anti-lock braking system and allows an on-board computer to monitor the rate at which each wheel revolves. The computer uses this data to interpret the relative size of each tyre on your car. A direct pressure monitoring system uses pressure sensors within each tyre and sends all of its data to a central control module in your car. Direct tyre sensors are usually wireless.

Glow Plugs

Glow plugs look very similar to spark plugs, but a glow plug functions by adding additional energy to heat and start a diesel engine. Unlike gasoline engines, which use a spark to ignite the fuel mixture, diesel engines rely solely on cylinder pressures to ignite the diesel fuel mixture. If there are problems with your glow plugs, it is important to get them replaced as it will affect how your vehicle starts. On cold wintery mornings, fully functioning glow plugs are essential for a successful ignition. In case your glow plugs fail and you get stuck in the cold with an engine that will not start, make sure you keep a blanket in the boot of your car.

Ignition Coils

A number of issues including backfiring, problems starting, a jerky ride or worsening fuel economy may be attributed to the failure of an ignition coil. An ignition coil is a high-voltage, low-current transformer located in the car’s ignition system. Its job is to convert the battery’s 12 volts to the 20 or 30 thousand volts required to send a surge of electricity to the spark plugs to initiate fuel combustion. There are a few causes of failure. If your spark plugs are worn out the ignition coils have to increase their output, which can result in failure. What's more, the ignition coil’s internal insulation could become damaged, leading to failure of the ECU (control unit) that controls it. In the event of an ignition coil failure, it is advisable to replace the whole set rather than just the one that has failed. Because they have all undergone the same usage, if one fails the rest are likely to follow.

Spark Plugs

Struggling with a misfiring engine, or a car that simply just won’t start? It might be time to update your spark plugs. Pop your hood, and even if you’re not a seasoned mechanic, you should be able to spot your spark plugs. These connect the ignition to the engine, and comprise an integral part of the combustion engine. In short, without functioning spark plugs, not a lot will happen when you turn the key. It’s fairly common for your spark plugs to fail over time, especially if they’ve not been replaced recently. In fact, it’s good practice to replace them with every service to ensure your vehicle stays in tip top (and most importantly of all) functioning shape. If you think it’s time to update your spark plugs, or if you’ve been struggling to get that ignition working when you’re off to work or to pick the kids up from school, then do take a look at our wide range of spark plugs below.

Ignition Leads

As with all high-usage engine components, ignition leads wear out over time and need replacing. Integral to the engine’s fuel ignition system, ignition leads are responsible for carrying the electrical current from the ignition coil to the spark plug. Sometimes known as high-tension, or HT, leads (referring to the voltage they carry), each ignition cable encloses a single wire through which the current flows before returning via the opposite battery terminal or negative terminal. There are two types of ignition leads. Older cars have copper-core leads, which are quite stiff, while newer models have carbon-core leads, which are more flexible. The carbon leads come fully assembled (with the distributor, coil connections and plug caps attached), but you will need to assemble the components of the copper leads when you replace them yourself. Common symptoms of faulty ignition leads include bad starting, misfiring, rough running and radio interference. Damage is usually caused by worn-out cable insulation or dirty cable connectors. Left unchecked, this damage could lead to excessive fuel consumption and MOT emissions failures.


Ignition distributors provide the main path for the current within an ignition system to pass between the ignition coil and the spark plugs. Due to the fact that there are multiple cylinders in need of electrical current, the distributor performs a rotating movement via a rotor, which sits inside the distributor cap, to efficiently reach all touch points, or posts. The rotor is connected to the main ignition coil and takes its charge through to the dedicated post for each cylinder. All of these components, including the spark plugs outside the ignition distributor, endure heavy use and can often wear out quickly, so it is important to frequently check on their health and replace each part if they are showing signs of deterioration.

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