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Car electrics

Car key battery replacement in a key fob

Is there anything more frustrating than being stranded outside your car because the battery on your key fob has died? It's a common inconvenience that can be easily remedied with a quick battery change. In this guide, we'll walk you through the process of changing your car key fob battery so you can be back on the road in no time.

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DPF pressure sensor: what it does, location, and faults

The primary purpose of the diesel particulate filter pressure sensor or exhaust pressure sensor is to monitor how much soot there is in the diesel particulate filter (DPF) and how well the filter performs. It does this by measuring the exhaust back pressure upstream and downstream of the DPF. By calculating the difference between the two pressures, the device helps to determine how much contaminants have accumulated and sends a signal to the engine control unit to trigger the regeneration process when the filter becomes too saturated. A high pressure indicates that there is a higher amount of soot blocking the exhaust flows whereas low pressure indicates a lower soot content.

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Fuel temperature sensor: function and failure symptoms

A fuel temperature sensor is a critical vehicle's fuel system component part that measures the temperature of the fuel and sends this data to the electronic control module (ECM). The sensor is typically located in the fuel rail or fuel line and consists of a resistance temperature detector (RTD) that changes its resistance based on the fuel's temperature. The ECM uses this information to adjust the fuel-to-air ratio, timing, and other engine parameters to optimize performance and fuel efficiency.

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Ignition module: failure symptoms, problems, and testing

It’s safe to say that your car’s engine wouldn’t get you very far if it weren’t able to ignite fuel. The ignition system has the critical job of producing a spark that is strong enough to ignite the air-fuel mixture inside the combustion chambers and thereby generate the energy needed to power your car. With the development of the electronic ignition system came greater reliability, improved fuel efficiency and reduced emissions.

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Tyre pressure sensor: how it works and symptoms of malfunction

Tyre-pressure sensors are devices that are installed in vehicles to help drivers monitor the air pressure in their tyres. These sensors have become increasingly popular in recent years, and for good reason. Maintaining proper tyre pressure is essential for vehicle safety, fuel efficiency, and tyre lifespan. Here we'll explore what could cause faults in car tyre pressure sensors.

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How a car horn works and replacement cost

You may be familiar with this: the driver in front of you doesn't notice that the traffic lights have long since turned green; the student driver stalls the vehicle for the umpteenth time; someone else leaves the roundabout without signalling. All these situations have one thing in common – they make you feel the urge for a reprimanding "honk"– also known as a klaxon sound. But are you allowed to do this? Here we’ll explain how a car horn works and when you are allowed to use it and when you are not.

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Ambient air temperature sensor: location, function, and failure symptoms

The function of an ambient air temperature sensor is to provide important data to various systems in the car to enable optimum operation, comfort, and safety. By monitoring the outside air temperature, the car's systems can adapt their operation and response to the prevailing conditions.

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Car interior lights: types and all you need to know

Interior lighting isn’t usually high up on the priority list for car owners as we tend to only focus on the legally required exterior lights when it comes to maintaining visibility. While an interior light may not be as critical as a headlight, it still plays a role in ensuring passenger safety and comfort.

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How to choose a reversing camera and which one is best for your car

By giving you a clearer view of what’s going on behind you, a reversing camera can help you avoid a collision in the tightest of parking spots. While it is helpful for ensuring safety when reversing and manoeuvring, it can also help to increase the confidence of new drivers. 

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How does a windscreen wiper motor work

Have the windscreen wipers on your car stopped working? Then you need to find and fix the problem quickly. In bad weather, there is a risk of poor visibility and an increased risk of accidents. Here we’ll go into more detail about your windscreen wiper motor, whether you need rear wipers and more.

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What is an ECU and what does it do?

You may have seen the abbreviation ‘ECU’ crop up a few times in online tutorials and blogs but still not be familiar with its meaning. It usually stands for electronic control unit and, in many cases, it specifically refers to the engine control unit. An electronic control unit is a small device which controls the functions of one or more electrical systems in the vehicle. The control units process inputs from a variety of sensors and components. They then use the information transmitted to control the system “actuators” that convert the ECU signals into specific actions. They essentially work like mini computers with an integrated chip running on embedded software.

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Alternator replacement: how much does it cost and how long does it take

Are you having problems starting the engine? Is the car battery discharging very quickly even though it has just been replaced? If your car won't start or the battery warning light/charging indicator light comes on, this indicates a broken alternator. The alternator converts the energy of the engine and charges the battery of the car. If these problems are occurring in your vehicle, you should take action. First, check whether the alternator cables or other components are defective. You can simply replace the cables. If the fault lies elsewhere, for example in the regulator, you should install a new alternator instead of repairing it. If you want to save money, you can do everything yourself. This way you don't have to pay for the labour or the expensive workshop products.

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Xenon vs LED lights: what's the difference

Halogen light bulbs have been commonplace in the automotive industry since way back in the 1970s. Although they are still used as the standard bulb in many vehicles, these warm yellow lights are becoming outdated as more manufacturers and consumers are turning to more efficient, longer lasting alternatives. Xenon and LED car headlights outshine their halogen predecessors, consuming less energy and emitting a brighter light.

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The top 5 best car battery charger brands in 2023

Whether you’re running late for work or just popping to the supermarket, there is never a convenient time for a flat battery. If you’re unable to get help from a mechanic quickly, a portable or outlet car battery charger can be a lifesaver. Although they don’t provide the same instant surge of power as jump starters, battery chargers help to restore the battery and even extend its life. For example, regular charging can prevent the formation of lead sulphate crystals, one of the main causes of premature failure.

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Replacing your car battery: how often and how much does it cost

How do you know it's time for a car battery replacement? There are a few simple signs that your battery is at its end. For example, if you find yourself having to jump start the battery multiple times or it loses its charge too quickly after recharging, it is probably time for a replacement. Dim lights and problems with the electronics in your vehicle are symptoms of a flat battery, as well as an engine that takes a long time to crank.

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MAF sensor: what it is, symptoms of malfunction, and how to check it

The Mass Air Flow sensor is a relatively small component, but it is very important in engine management. Almost all modern petrol and diesel engines use the MAF sensor to calculate the optimum amount of fuel to inject. Let's take a closer look at how it works and how to spot the symptoms of a malfunction.

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Symptoms and problems of a bad throttle position sensor

Not many people know how important this tiny sensor is for their car engine. It plays a critical role in making sure the engine receives enough air and maintaining the correct air-fuel mixture ratio. It does so by monitoring how open the throttle valve is and thereby how much air is going into the engine. The more you press down on the car accelerator pedal, the more the valve should open to generate more power.

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Knock sensor: operating principle, functions, malfunctions and how to fix it

If you are looking for your knock sensor, you will find it on the engine block. This device has been designed to detect sounds. These are often referred to as “pinging”. When it detects this specific sound, it slows the spark timing and the knock disappears. This pinging happens when the fuel air mixture start to suddenly burn due to too much heat. This is something that has to be taken care of and why contemporary engines have these sensors. 

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Crankshaft Sensor: Malfunctions, Operation, Symptoms

No one notices the crankshaft sensor as long as it’s working. Most car owners never make its acquaintance because in principle it lasts the life of the car and does not need changing. But of course, it can happen that it malfunctions and fails to do its job properly. 

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What the start-stop system is for

In a bid to reduce fuel consumption and harmful emissions to the atmosphere, car manufacturers are constantly offering innovative technologies designed to optimise the operation of the engine and associated units. One of the most successful technological solutions is the start-stop system, which shuts down the engine when idling, for example, in traffic jams or at traffic lights. We look at how it works, and the advantages and disadvantages.

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How to restore the headlamp level if the headlamp light intensity is severely reduced

New headlights almost always give bright light. However, over time, many drivers notice that the road ahead is lightened up worse than before, the eyes get tired more quickly when driving at night, and assessing the traffic situation requires considerable alertness. Here we tell why this happens, how to fix the problem, and what can aggravate it.

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Warning lights indicating activation of various systems

Modern cars are equipped with numerous electronic systems, each with its own warning indicators. In total, there are over a hundred indication symbols in a car. Here we’ll explain them all in detail. Let's start with the signs indicating whether a system is switched on or off.

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