2018 Land Rover Discovery Won't Start

Resolve Starting Issues for Your 2018 Land Rover Discovery

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
38% chance it's the
Battery
0%
27% chance it's the
Alternator
0%
20% chance it's the
Starter
0%
15% chance it's
Something else
The most common reasons a 2018 Land Rover Discovery won't start are a dead battery, an alternator problem, or failed starter.
  • Battery: A weak or failing battery can result in difficulty starting the engine and electrical system malfunctions.
  • Alternator: A failing alternator can result in insufficient electrical power, leading to battery drain and electrical system malfunctions.
  • Starter: A faulty starter motor or a weak battery can prevent the engine from cranking properly, leading to starting issues.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial diagnostic steps to take when a 2018 Land Rover Discovery won't start?

When your 2018 Land Rover Discovery won't start, it's essential to approach the problem methodically to identify the root cause. Begin by checking the battery, as a dead or low battery is a common culprit; using a multimeter can help you assess its voltage. Next, ensure that there is sufficient fuel in the tank, as running out of gas can often be overlooked. If both the battery and fuel levels are adequate, inspect the ignition switch for proper functionality, as a malfunction here can prevent the engine from starting. Following this, examine the starter motor to confirm it engages when you attempt to start the vehicle, as issues with the starter can lead to starting failures. Utilizing an OBD-II scanner to check for error codes can provide insights into any underlying electronic issues. Additionally, inspect the fuses for any that may be blown, as this can disrupt the vehicle's electrical system. Finally, ensure that fuel is being delivered to the engine correctly, as problems with the fuel pump or filter can also hinder starting. By systematically working through these steps, you can effectively diagnose and address the starting issues with your Land Rover Discovery.

What are the common problems that could cause a 2018 Land Rover Discovery to not start?

When a 2018 Land Rover Discovery fails to start, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the first areas to check is the battery, as a weak or dead battery is often the primary reason for starting issues. Ensure that the battery connections are secure and that the battery itself is in good condition. Next, consider the fuel system; a clogged fuel filter or a malfunctioning fuel pump can prevent fuel from reaching the engine, so inspecting these components is crucial. Additionally, the ignition system plays a vital role in starting the vehicle; faulty spark plugs, ignition coils, or a defective ignition switch can all lead to problems. If these components are not functioning properly, they may need to be replaced. Another potential issue is the starter motor, which is responsible for turning the engine over; if it is malfunctioning, it may require repair or replacement. Lastly, the Engine Control Module (ECM) could be at fault, as it manages various engine functions, and diagnosing ECM issues may necessitate professional help. By systematically checking these areas, you can identify and resolve the starting problems with your Land Rover Discovery.

How urgent is it to address the starting issue in my 2018 Land Rover Discovery?

When faced with a starting issue in your 2018 Land Rover Discovery, it is essential to recognize the urgency of the situation. Safety should always be your top priority; if the vehicle struggles to start or stalls unexpectedly, it can create dangerous scenarios, especially in critical driving conditions. Additionally, neglecting this problem can lead to more severe damage to the vehicle's components, resulting in costly repairs that could have been avoided with timely intervention. Furthermore, a reliable vehicle is crucial for your daily activities, and a starting issue can disrupt your routine, leading to unexpected delays and frustrations. By addressing the starting issue promptly, you not only enhance your safety and the vehicle's performance but also ensure that your Land Rover remains dependable for all your transportation needs.

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