Mercedes-Benz AMG GT S Won't Start

Common Causes for Your Mercedes-Benz AMG GT S Not Starting and How to Resolve Them

Find Repair Location
Reviewed by
Aisha
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 Mercedes-Benz AMG GT S 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.

Troubleshooting Starting Issues in a Mercedes-Benz AMG GT S

When troubleshooting starting issues in your Mercedes-Benz AMG GT S, it's essential to adopt a methodical diagnostic approach. Begin by examining the battery, as it is often the simplest and most common culprit. Ensure that the battery terminals are clean and securely connected, and use a voltmeter to check the battery voltage; if it reads below 12.6 volts, consider charging or replacing the battery. Next, listen for the fuel pump's operation when you turn the ignition on, as a malfunctioning fuel pump or clogged fuel injectors can impede fuel delivery and prevent the engine from starting. Following this, inspect the ignition system, including spark plugs and ignition coils, as failures here can also lead to starting difficulties. Lastly, verify that your key or key fob is functioning correctly, as issues with the signal can prevent the vehicle from recognizing the key. By systematically addressing these areas, you can effectively diagnose and resolve starting issues in your AMG GT S, ensuring a smoother driving experience.

What to Check When Your Mercedes-Benz AMG GT S Won't Start?

When your Mercedes-Benz AMG GT S refuses to start, it's essential to systematically evaluate several common issues that could be at play. Begin with the battery, as a weak or dead battery is frequently the primary cause of starting problems. Look for any signs of corrosion on the terminals or loose connections that could hinder power flow. Next, assess the alternator, which is vital for charging the battery while the vehicle is in operation; a malfunctioning alternator can lead to battery drain and starting failures. Additionally, familiarize yourself with the advanced starting system unique to Mercedes-Benz vehicles, as understanding its components can aid in pinpointing the issue. Lastly, keep an eye on any recalls associated with your model, as these can sometimes reveal known defects that might affect starting performance. By methodically checking these areas, you can effectively troubleshoot and resolve the starting issues with your AMG GT S, ensuring a smoother return to the road.

Why is My Mercedes-Benz AMG GT S Not Starting?

When your Mercedes-Benz AMG GT S refuses to start, it’s crucial to act swiftly, as the underlying issues could escalate into more significant problems if left unaddressed. Ignition cylinder problems can lead to irregular engine performance, which not only affects your driving experience but can also compromise safety on the road. Additionally, a faulty exhaust gas oxygen sensor may cause engine misfires, particularly during acceleration or at low speeds, potentially resulting in further engine damage and decreased fuel efficiency. Engine misfires, often stemming from worn spark plugs or faulty ignition coils, can severely impact your vehicle's performance and longevity. Therefore, it is essential to diagnose and resolve these issues promptly, as ignoring warning signs like a check engine light can lead to costly repairs and unsafe driving conditions. Regular maintenance and immediate attention to starting problems will help ensure your AMG GT S remains in optimal condition, safeguarding both your investment and your safety.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

Mercedes-Benz AMG GT S Won't Start? Causes & Repairs