Mercedes GLC Coupe Wont Start? Here’s Quick Solutions to Most Common Problems

Intro

As an experienced car mechanic with over 20 years of experience, I’ve seen plenty of people struggling when their Mercedes GLC Coupe Won’t Start. And I’ll be straight with you, not being able to start your car when you need to drive is extremely annoying.

But don’t worry, you’ve come to the right place, no need to keep googling searches like “Mercedes won’t crank“, I got you covered. My name’s Robby, a certified auto mechanic with over two decades of experience, and in this guide, I’ll walk you through the usual causes for why your GLC Coupe refuses to start. I’ll detail all the commonplace offenders so you can diagnose what’s causing issues, plus what to do to fix each particular situation. Drawing on my two decades of training and on the job experience, I’ll provide usable repair advice to get your Mercedes GLC Coupe up and moving as quick as possible!

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So Why Won’t My a Mercedes Start?

Mercedes GLC Coupe wont start

Before we tackle the list of possible faults and fixes, it’s critical to first gain an understanding of the central issue. When you hop in your Mercedes GLC Coupe and discover “it won’t start!”, there could be a number of things causing the difficulties. Perhaps the engine doesn’t turn over whatsoever, or maybe it’s turning over partially yet not igniting. Or you might hear clicking when you try to start it, but ultimately nothing happens. Each scenario can signal different mechanical issues.

Common Reasons Why Your Mercedes GLC Coupe Won’t Start

There are a host of culprits as to why your GLC Coupe won’t fire up. Typical causes include a weak or drained battery, defective alternator, starter motor complications, fuel system problems, plus electrical or wiring defects. Each of these issues can show up differently, needing specific methods of diagnosis and repair to get you back on the open road ASAP. All of which, we’ll delve into.

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Symptoms of a Mercedes GLC Coupe That Won’t Start

Identifying these warning signs will help uncover the main issue. For instance, when you turn the key or press the start button and you hear it clicking but no ignition, it often means a fuel or ignition issue.

Analysis of The Reasons Why Your Mercedes GLC Coupe Won’t Start

The initial move in solving the no-start hassle is understanding the specific source of the issue. So let’s explore the most common explanations for the GLC Coupe struggling to start when you turn the key.

Car Battery Issues Preventing Your Mercedes GLC Coupe From Starting

Car wont start battery is good

In the vast majority of situations, the most common reason a Mercedes GLC Coupe won’t start comes down to issues with the battery. Specifically, a drained or weak battery prevents the engine from turning over. The car’s battery delivers the required power to ignite the engine and energize all your vehicle’s electrical components. Symptoms of a struggling battery entail labored or difficult cranking, dim headlights, or a warning light aglow on the dash. A battery charger can recharge a drained battery if you don’t have the help of another vehicle to jump start it, but do have an electrical socket nearby like at home.  And a portable jump starter lets you charge p the battery without another vehicle, and by the roadside without the need for an electrical socket, so you are never stuck.

Alternator Problems Can Prevent Your Mercedes GLC Coupe Starting

car wont start alternator

The Alternator keeps the battery charged by harnessing engine power while driving. A worn out alternator can easily stop your Mercedes GLC Coupe from starting since it fails to recharge the battery, draining it completely so that one day you hop in your beloved Mercedes GLC Coupe and it simply can’t start. Symptoms of a malfunctioning alternator may include an illuminated battery or alternator caution light on its dash, faint headlights while idling, or a grinding noise from the engine while running.

Starter Motor Failures in a Mercedes GLC Coupe

car wont start wont turn over

The starter is crucial for turning the engine when you try and start up your Mercedes. If the starter is faulty, the engine may fail to crank, preventing your GLC Coupe from starting. Pay attention to clicking sounds when you turn the key or grinding during cranking, possibly meaning starter problems.

Fuel System Issues Can Prevent a Mercedes GLC Coupe From Starting

car wont start fuel filter

We’re not talking about running out of gas like a silly goose. Rather, it’s problems in the fuel system itself that could leave your GLC Coupe unable to start. Your car uses gas uses gas to combine with oxygen and runs the engine. So problems here like a clogged fuel filter or failing fuel pump relay can result in the engine is unable to get the fuel it requires for ignition. Fuel injectors can also get clogged over time, so try a fuel injector cleaner like Red Line to clear any blockages and improve starting.

Electrical System or Wiring Problems in a Mercedes GLC Coupe Can Prevent it From Starting

car wont start electrical issue
Image Credit: MechanicAnswer.com

Ok, well yes that image is a joke, but I want to emphasize today’s cars depend greatly on electronics, increasing what can go wrong. With older models, common culprits include blown fuses, ignition problems, damaged ignition switches, or broken sensors. Electrical issues and electronics like these may prevent your car from starting. Watch for your car only starting sometimes, dashboard alerts, or failure to crank as signs of an underlying electrical problem. Diagnosing and repairing these typically requires a knowledgeable mechanic near you.

Solutions: Let’s Get Your Mercedes GLC Coupe Starting Again!

If you think you might know what the issue may be, it’s time to figure out the cause of your car’s starting failure, and then the next step is to attempt to mend the problem. Here are some tips for frequent problems we’ve covered thus far:

How to Identify and Fix Battery Issues in a Mercedes GLC Coupe

car not starting but battery is fine

The first step if a battery problem is suspected for the no start is to check the battery terminals. Verify they are clean, tight, and correctly connected. If the terminals are in fact dirty, try scrubbing them with a sodium bicarbonate(baking soda) and water mixture.

Once you have checked the battery terminals, you can check to see if the battery is just out of charge, or worse, it’s old and weak, or dead and needs to be replaced. For this, you can charge the battery in a few different ways:

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If the battery charges fully and performs as expected, the issue may be resolved. However, replacing the battery will be required if it is old, weak or dead. Otherwise, even sufficiently charging it to start your GLC Coupe may only provide temporary relief before it runs out of charge again in the near future. Using a multimeter or OB2 scanner to evaluate the battery’s condition can determine if it’s worth preserving or requires swapping out. Suitable replacement batteries for your specific Mercedes can be found on Amazon here by entering your vehicle details to filter for the right fit and choosing a highly-rated seller.

Robby Recommends:

Portable Car Battery Jump Starter Charger - NOCO Boost Plus GB40

At Home Battery Charger - YONHAN - Fully Automatic

Jumper Cables by Energizer for Car Battery - Heavy Duty

NOCO Boost Plus GB40 1000A UltraSafe Car Battery Jump Starter

YONHAN Battery Charger Fully-Automatic

Energizer Jumper Cables for Car Battery, Heavy Duty

If charging your GLC Coupe’s battery fails to solve ongoing issues like frequent draining and recharging even after installing a new battery, an underlying problem likely causes the excessive drain. Professional diagnostic services would then be needed to inspect and identify the root cause. You can also consult a mechanic online through us or obtain an instant quote from a mobile mechanic.

How to Identify and Fix Alternator Problems in a Mercedes GLC Coupe

Car wont start replace alternator needed

If you think the alternator is the reason your Mercedes GLC Coupe won’t start, a test can confirm. If you can temporarily get the vehicle running (you may need a jump start), with the engine on, remove the positive battery terminal. If the car dies pretty quickly after that, it’s likely a bad alternator. Keep in mind though this test can be risky and mess up sensitive electronics in your motor, so it’s best to consult with an experienced mechanic in your town or online first since this test risks messing up the delicate electronics in your Mercedes GLC Coupe.

If you figure out that the alternator is the problem, it’s a case of having it replaced. I recommend consulting an online or local mechanic as they will advise you on how difficult the repair is for your specific model, and you can work out if you want to try it yourself, or with the advice of an online mechanic

If you do want to try it yourself or take it to a local garage, you can often buy the replacement parts yourself cheaper than at the garage, but you need to know what to get for your model of Mercedes GLC Coupe. You find all the information you need about your specific vehicle by searching online for something like “Mercedes vin check free online“, which is a purchasable report, that will give the specs for your vehicle and which parts are compatible, and then you can go get the alternator parts you need. However, an easier option is, Amazon probably has the alternator you need online, at a cheaper price, and their site easily shows which ones will go in your specific car model. Check the Amazon alternator page here

How to Identify and Fix Starter Motor Problems in a Mercedes GLC Coupe

starter motor issues in a ford

If you think the starter motor might be causing your Mercedes GLC Coupe to not start up, listen closely for a clicking noise when you turn the ignition key. If heard, but the engine does not turn over, the starter motor likely needs replacing. You can take it to a local garage and have them repair it, or repair it yourself with the help and advice from an online mechanic guiding you. 

If you need it, one of the cheapest and easiest places to get a new starter motor, for your exact vehicle model is on the Amazon here.

How to Identify and Solve Fuel System Problems in a Mercedes GLC Coupe

clogged fuel filter car wont start

If you suspect a fuel system issue might be causing the no-start, listen closely for the fuel pump hum when you flip the key to “on” before trying to turn over the car. The pump should emit a faint humming for a few seconds. Should no such quiet hum be audible, the fuel pump could be defective. Difficult starting, stalling, or poor throttle response may also come from a blocked fuel filter. Both pump and filter issues normally require a skilled mechanic to inspect and repair them properly, often using fuel pressure testing and precise diagnostic gear. Later in this article, I detail the best ways to get help from a local Mercedes mechanic near you. 

How to Repair Electrical or Wiring Problems in a Mercedes GLC Coupe

fuses to check when car wont start

If you suspect it’s an wiring issue, first check the fuses for the ignition system, and replace any that have blown. If your GLC Coupe starts after this, it was an effective, cheap fix! But if your Mercedes GLC Coupe refuses to start, even sometimes, the ignition switch itself could be problematic. Dash lights on the dashboard could additionally mean a faulty component. These can be intricate problems needing a qualified mechanic to diagnose and fix (see below advice on local mechanics).

Preventive Steps

As grandfather would say: “An ounce of prevention is worth a pound of cure”. Here’s how to prevent future problems starting your GLC Coupe:

Routine Upkeep of Your Mercedes GLC Coupe

Regular maintenance on car to prevent starting issues

Routine maintenance is essential to avoiding issues, including oil changes, checking the battery, cleaning terminals, replacing the fuel filter as needed, and having a mechanic examine the car regularly. If unsure about maintenance for your model, consult a mechanic locally or online for clarification.

Drive Your GLC Coupe Regularly

drive regular to avoid car troubles

If your Mercedes GLC Coupe happens to sit motionless in the garage or front yard for extended times without being driven, the battery can weaken as it is not being charged up by the engine running, through the alternator. Try your best to drive your car regularly to keep a charged battery. If you remember you have not driven your car in a while, take it for a quick spin around town to ensure there is still a charge left.

Note: Letting the battery entirely drain is also bad for its longevity, so try to avoid that.

Pay Attention to Warning Signs

Check Engine Control Light on a Vehicle Dashboard

If you notice any weird things like unusual sounds, changes in driving and performance, or warning lights lit up on the dashboard, do not ignore them. These are often early signs of an issue that should be addressed ASAP before they escalate into larger problems later on. Consult with a mechanic locally or online about these problems and get advice on if they require attention.

When to Ask a Mercedes Mechanic Online

If your schedule is packed, or you gave fixing the no start yourself an honest effort but with no luck, consider consulting a Mercedes mechanic online. It delivers expert guidance in just minutes from the comfort of your living room, and is far less expensive than a tow and diagnosis at the local garage.

Advantages of an Online Mercedes Mechanic

Happy mechanic repairing car looking at camera

Online Mercedes mechanics can review your symptoms, past repair history, and circumstances to provide troubleshooting steps tailored to your situation. With so many Mercedes mechanics available they can help fix nearly any problem, it doesn’t if matter it’s your GLC Coupe that’s having issues or a Mercedes GLC won’t start, the online mechanics can help sort anything in no time. And with many household budgets tighter these days, an online mechanic provides instant affordable help when you need it most, 24/7.

You can describe the problems you’re having, ask Mercedes mechanics endless questions, and even submit images and videos so you can demonstrate to the expert what you mean. You can talk to them via online chat or voice chat, whatever you like. The Mercedes mechanic will diagnose the issue, recommend the top solution for your particular case, and even walk you through simple maintenance step-by-step.

Whether you want an expert second opinion or are simply short on time, online repairs assistance is there when you need it. Give it a try to see firsthand how convenient fixing problems can be.

So feel free to try out our online Mercedes mechanic service and see for yourself!

When and How to Get a Local Mercedes Mechanics Help

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When your Mercedes GLC Coupe won’t start, and you are unable to repair it yourself, thinking about how to get your vehicle to the garage can be a nightmare. There are options like roadside services, that come to you and can provide simple fixes to get your car moving enough again, so you can get it to a mechanic garage for proper repairs. You can also use a towing service, but these can be costly, easily into the hundreds of dollars. A much better option is the use of a mobile mechanic, who will come to you at your home, place of work, or by the roadside, and carry out repairs there and then for you, so you can get your GLC Coupe started again ASAP.

So if you think a mobile mechanic is the best solution for you, instead of searching on Google something like  “on call mobile mechanic near me“, the best in the USA that also covers most towns is YourMechanicI have personally recommended them to countless people across the country and they always have a great experience.

Reasons I recommend them:

  • They use experienced ASE-certified mechanics
  • They come to you, which is super convenient
  • You see the price upfront, no surprises or hidden fees
  • Low Cost compared to regular garages

If you would like to know more, the process to use them is this.

  1. Visit their official website here: YourMechanic
  2. Get an instant free quote for what you need
  3. Book a time and place for the mechanic to come to you
  4. The mechanic will arrive in a fully stocked repair van and repair it right in front of you
  5. Pay when the job is completed.

Super easy, super reliable, super convenient, and highly recommended.

Conclusion

In short, when your Mercedes GLC Coupe doesn’t turn over, it can be a major inconvenience. However, grasping what might be causing the problems, being able to diagnose them, and knowing what actions are needed in each case, and where to get help if necessary, will be a huge help. Remember that regular maintenance is vital to avoiding most vehicle problems.

Frequently Asked Questions (FAQs)

What if my Mercedes GLC Coupe won’t start up?

First things first, take a deep breath and don’t panic. Look for any odd noises, flashing lights, or changes in how it runs that could point to the issue. Most likely the culprit is one of the common problems we’ll talk about here. If you still can’t identify the exact issue, you’ll have to consult a trusted Mercedes mechanic locally or online.

Determine if my Mercedes GLC Coupe won’t start because of the battery?

Clues that your Mercedes’s battery is the issue are, a slow cranking engine, dim front lights, and battery warning symbols lighting up on the dash. Also make sure the battery terminals are clean, corrosion-free, and tightly fastened. If your battery is worn out it’s probably best to just replace it fully.

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How to prevent my Mercedes GLC Coupe from failing to start in the future?

To prevent this frustration from repeating, routine upkeep is essential. This includes oil changes, checking the battery and scrubbing its terminals, changing out the fuel filter when required, and getting your Mercedes GLC Coupe checked out by a mechanic routinely. Additionally, make sure to drive the car frequently so the battery stays charged.

Can I consult an online mechanic if my Mercedes GLC Coupe fails to start up?

Yes, you can. An online mechanic service like ours can offer instant expert Mercedes mechanic aid and advice, without you having to leave your residence. {If your vehicle fails to start and is stuck in the parking area, this is especially beneficial.

In what ways can platforms like MechanicAnswer.com lend a hand if my Mercedes GLC Coupe won’t turn on?

We link you with certified Mercedes specialists who can offer suggestions tailored to your individual situation. You can inform them about your vehicle issues, ask as many questions as needed, and even submit images and videos so you can show in detail the issue. The specialist auto mechanic will be capable to aid, pinpoint the fault, and propose the best remedy and guide you through it.

Interesting Mercedes GLC Coupe Facts

Did you know that the Mercedes GLC Coupe comes with a feature called “Car-to-X Communication”? It’s like the car is part of a secret network, sharing information with other vehicles to help you avoid traffic jams and hazards on the road. And get this – the GLC Coupe also has an air suspension system that can adjust the ride height for different driving conditions, giving you a smooth and comfortable ride no matter where you’re headed. Plus, the interior is like a high-tech wonderland, with a massive infotainment screen and voice-activated controls that make you feel like you’re living in the future. It’s no wonder you’re itching to get back behind the wheel of your GLC Coupe – it’s a truly impressive machine!

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Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just £5.
  2. Get help from a Mobile Mechanic. We  recommend Fixter. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below. We recommend the online mechanic first, as it’s cheaper for you, and you may not need an in-person mechanic.

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just $5.
  2. Get in-person help from a Mobile Mechanic. We recommend YourMechanic. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below. We recommend the online mechanic first, as it’s cheaper, and you may not need an in-person mechanic.

Choose Your Mechanic

1. Chat with A.I. Mechanic (Robot Robby)
  • Free 7-day trial
  • A.I. Mechanic that is trained by our human mechanic writers. As helpful as a human mechanic for expert advice, troubleshooting, and repair guidance.
2. Chat with a Human Mechanic Online
  • Join for just $5, and $39/month. Cancel anytime
  • Real human ASE-certified mechanics available 24/7

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just $5.
  2. Get in-person help from a Mobile Mechanic Near You. They will come to you and fix your vehicle at a time that suits you. If there are none near you, you will be redirected to the online mechanic.

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just £5.
  2. Get help from a Mobile Mechanic. We  recommend Fixter. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below. We recommend the online mechanic first, as it’s cheaper for you, and you may not need an in-person mechanic.

Which Mechanic Suits You?

  1. Chat with an Online Mechanic to get instant, unlimited help and advice for 1 full week, for just $5.
  2. Get in-person help from a Mobile Mechanic. We recommend YourMechanic. They will come to you and fix your vehicle at a time that suits you. Instant free quote online below. We recommend the online mechanic first, as it’s cheaper, and you may not need an in-person mechanic.

Where Can I Find My VIN?

Your vehicle’s unique Vehicle Identification Number (VIN) can be found on the title document, the vehicle registration, and the insurance policy. It is a series letters and numbers like this as example: WAUGC0896JA235262. The VIN can also be located on the following locations on the vehicle itself:

how to find VIN on vehicle