Mercedes A-Class AMG Wont Start? Here’s Quick Solutions to Most Common Problems

mercedes, a200, car

Intro

As a certified auto mechanic with over two decades of experience, I’ve helped plenty of people struggling when their Mercedes A-Class AMG Won’t Start. And let’s be honest, not being able to start your car when you need to drive is incredibly bothersome.

But don’t worry, you’ve come to the right place, no need to keep googling searches like “Mercedes doesn’t start“, I got you covered. My name’s Robby, a certified auto mechanic with over two decades of experience, and in this guide, I’ll outline the most common causes for why your A-Class AMG struggles to start. I’ll detail all the typical suspects so you can identify what’s happening, plus what to do to fix each specific situation. Drawing on my two decades of firsthand experience, I’ll supply practical diagnostic pointers to get your Mercedes A-Class AMG started ASAP!

Quick Solution Alert! 🚗💡

To save you time, this might be the quick solution you need.

An online mechanic can help you solve the issue much faster, and save money doing it.

They help 1000s of people every day in your position, save a lot of time, money and risk getting their vehicle repaired. Having a friendly expert mechanic guiding and advising you every step of the way, is the best thing you can do. You will have your issue fixed faster, and likely cost much less.

Why Won’t My a Mercedes Start?

Mercedes A-Class AMG wont start

Before we dive into the laundry list of possible faults and fixes, it’s key to first gain an understanding of the core problem. When you climb into your Mercedes A-Class AMG and discover “it won’t start!”, there could be multiple things causing the troubles. Maybe the engine doesn’t turn over whatsoever, or possibly it’s turning over partially yet not igniting. Or you might hear clicking when you try to start it, but sadly no ignition occurs. All these situations can be a sign of different problems under the hood.

Common Reasons Why Your Mercedes A-Class AMG Won’t Start

There are a host of reasons why your A-Class AMG won’t fire up. The usual suspects include a dead or weak battery, defective alternator, starter motor complications, fuel system problems, plus electrical or wiring defects. Every one of these concerns can show up differently, needing specific methods of diagnosis and repair to get you driving again as quick as possible. All of which, we’ll delve into.

Symptoms of a Mercedes A-Class AMG That Won’t Start

Identifying these red flags will help uncover the underlying issue. For instance, when you turn the key and you hear it clicking but no ignition, it often signifies a fuel or ignition issue.

Analysis of The Reasons Why Your Mercedes A-Class AMG Won’t Start

The first step in remedying the no-start nuisance is identifying the specific source of the issue. So let’s explore the most common reasons behind the A-Class AMG failing to start when you turn the key.

Battery Issues in a Mercedes A-Class AMG

car wont start but battery is good
Image Credit: MechanicAnswer.com

In the vast majority of situations, the most frequent reason a Mercedes A-Class AMG 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 provides the required power to ignite the engine and run all your vehicle’s electrical components. Signals of a dying battery entail labored or difficult cranking, faint headlights, or a battery alert symbol aglow on the dash. A battery charger can recharge a dead 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 in a Mercedes A-Class AMG

car wont start alternator

The Alternator keeps the battery charged by using engine power while driving. A broken alternator can easily stop your Mercedes A-Class AMG from starting since it cannot recharge the battery, draining it completely so that one day you hop in your wheels and it simply can’t start. Signs of a malfunctioning alternator may include a lit up battery or alternator caution light on its dash, dim headlights while idling, or a whirring noise from the engine while running.

Starter Motor Failures in a Mercedes A-Class AMG

car wont start wont turn over

The starter motor is key to cranking the engine when you go to start up your Mercedes. In the event of starter problems, the engine can’t crank, keeping your A-Class AMG from starting. Listen for clicking sounds when you turn the key or grinding during cranking, which could indicate starter problems.

Fuel System Issues in a Mercedes A-Class AMG

car wont start fuel filter

This isn’t about running out of gas like a silly goose. Rather, it’s issues with the fuel system itself potentially leaving your A-Class AMG unable to start up. Your car uses gas uses gas to mix with air and runs the engine. Issues in fuel delivery like a clogged fuel filter or failing fuel pump relay can result in the engine is unable to get the fuel it needs to start. 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 A-Class AMG

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, expanding the number of things that can go wrong. Even in older models, the usual suspects include blown fuses, ignition problems, faulty ignition switches, or broken sensors. Faulty wiring and electronics like these can all prevent your vehicle from starting. Pay attention to your car only starting sometimes, warning lights, or failure to crank as hints of an underlying electrical problem. Pinpointing and fixing these typically requires a knowledgeable mechanic near you.

Solutions: Let’s Get Your Mercedes A-Class AMG Starting Again!

If you think you might know what the issue may be, it’s time to figure out the reason behind your car’s failure to start, and then the next step is to attempt to mend the issue. Here are some tips for typical problems we’ve talked about already:

How to Identify and Fix Battery Issues in a Mercedes A-Class AMG

car not starting but battery is fine

If you believe a battery issue is to blame for your Mercedes’s trouble starting up, first check the battery terminals Verify they are clean, secure, and correctly connected. If the terminals are in fact corroded, try cleaning them with a 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:

If the battery charges fully and performs as expected, the issue may be resolved. However, if the battery has aged or lacks capacity, replacing it will be necessary. Otherwise, even sufficiently charging it to start your A-Class AMG 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 A-Class AMG’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 A-Class AMG

Car wont start replace alternator needed

If you suspect the alternator is causing your ride to have problems starting, you can test it yourself. If you can temporarily get the car running (you may need a jump start), with the engine on, disconnect the positive battery terminal. It’s probably the alternator if the engine dies soon after disconnecting the positive lead. Keep in mind though this test can be dicey and harm delicate electronics in your ride, so it’s best to talk to an experienced mechanic locally or online first since this test risks damaging the delicate electronics in your Mercedesvehicle.

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 A-Class AMG. You find all the information you need about your specific vehicle by searching online for something like “Mercedes vin lookup“, 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 A-Class AMG

starter motor issues in a ford

If you question if the starter motor is the source of your A-Class AMG failing to ignite, listen for a clicking noise when you turn the ignition key. If heard, but the engine does not turn over, the starter motor likely requires 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 A-Class AMG

clogged fuel filter car wont start

If you think a fuel system issue might be causing the no-start, tune your ears for the fuel pump noise when you flip the key to “on” before attempting to start the car. The pump should make a quiet humming for a few seconds. If you can’t hear that noise, the fuel pump could be defective. Difficult starting, stalling, or lagging acceleration may also result from a problematic or clogged fuel filter. Both pump and filter issues usually require a skilled mechanic to diagnose and fix them properly, often involving fuel pressure testing and specialized diagnostic equipment. 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 A-Class AMG

fuses to check when car wont start

If you suspect it’s an electrical problem, first check the fuses for the ignition system, and replace any that have blown. If your A-Class AMG starts after this, it was an effective, inexpensive fix! However, if it still won’t start, even sometimes, the ignition switch itself could be problematic. Warning lights on the dashboard could additionally mean a damaged sensor. These can be complex issues needing a qualified mechanic to diagnose and properly repair (see below advice on local mechanics).

How to Prevent Starting Issues in a Mercedes A-Class AMG

As my dad used to say: “An ounce of prevention is worth a pound of cure”. Here’s how to prevent future troubles starting your A-Class AMG:

Routine Upkeep of Your Mercedes A-Class AMG

Regular maintenance on car to prevent starting issues

Regular maintenance is essential to avoiding issues, including oil changes, checking the battery, cleaning terminals, replacing the fuel filter as needed, and having a mechanic check over the vehicle routinely. If confused about maintenance for your model, ask a mechanic locally or online for guidance.

Drive Your A-Class AMG Regularly

drive regular to avoid car troubles

If your Mercedes A-Class AMG happens to sit parked in the garage or driveway for too long without being driven, the battery can deplete as it is not being charged up by the engine running, through the alternator. Try your best to use your Mercedes A-Class AMG regularly to maintain a charged battery. If you remember you haven’t driven your car in a while, take it for a short drive around town to ensure there is still a charge left.

Note: Letting the battery fully 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 abnormal 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 despite putting in real effort on your own, you still can’t get your car to start, consider consulting a Mercedes mechanic online. It delivers quick professional advice from the comfort of home, 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

By detailing what you’ve already tried and sharing specifics on the no-start issue, online mechanics can then offer a custom action plan to help get your car started again. With so many Mercedes mechanics available they can help fix nearly any problem, it doesn’t if matter it’s your A-Class AMG that’s having issues or a Mercedes A-Class won’t start, the online mechanics can help sort anything in no time. And with many household budgets tighter these days, the convenience and affordability of online mechanics help, keep your wallet happy too.

You can explain the problems you’re having, ask Mercedes mechanics endless questions, and even submit photos and videos so you can demonstrate to the mechanic what you mean. You can talk to them via instant messenger or voice chat, whatever you like. The Mercedes mechanic will ID the issue, advise the top solution for your particular case, and even guide you on basic repairs 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 ask a Mercedes mechanic free service and see for yourself!

When and How to Get a Local Mercedes Mechanics Help

automobile mobile mechanic

When your Mercedes A-Class AMG 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 A-Class AMG started again ASAP.

So if you think a mobile mechanic is the best solution for you, instead of searching on Google something like  “mobile mechanic“, 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 A-Class AMG won’t start, it can be a major inconvenience. However, understanding what might be causing the problems, being able to diagnose them, and knowing what steps are required in each case, and where to get help if necessary, will be a huge help. Remember that regular care is key to avoiding most car issues.

Frequently Asked Questions (FAQs) When a Mercedes A-Class AMG Won’t Start

Mercedes A-Class AMG won’t start but lights come on?

If your Mercedes A-Class AMG‘s lights turn on but it still won’t start, the issue is likely not related to the battery. More than likely there is a problem with the starter motor. Investigate if you hear any clicking sounds when attempting to crank the key. If so, the starter motor is trying to engage but failing. Have a mechanic inspect the starter motor – it may need to be fixed or swapped out.

Mercedes A-Class AMG won’t start but has power?

When your Mercedes A-Class AMG has power (lights, radio etc work) but fails to start, there may be a fuel delivery problem. Issues like a faulty fuel pump relay could prevent fuel getting to the engine. Without enough fuel, combustion can’t happen and the engine won’t start. Listen near the back seat when turning the key – you should hear the fuel pump prime for a few seconds. If not, have a mechanic check the fuel system.

Mercedes A-Class AMG won’t start but battery is fine?

If your Mercedes A-Class AMG‘s battery tests fine and is fully charged, but the car still refuses to start, the underlying cause is likely electrical. Possible issues include a bad ignition switch, broken sensor, or wiring problems. As electrical issues can be tricky, diagnosis by a professional mechanic is best. They can accurately identify the specific electrical fault and have it repaired.

Mercedes A-Class AMG won’t start just clicking?

When you turn the key and there’s only a clicking noise but the engine fails to turn over, the most common cause is a faulty starter motor. The click comes from the starter solenoid attempting to activate the starter motor, but the motor itself fails to spin up the engine. As the starter motor needs physical fixing or swapping out, seek help from a reliable mechanic to get your Mercedes A-Class AMG running again.

What if my Mercedes A-Class AMG won’t start up?

First things first, take a deep breath and try to stay calm. 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 ask for help from a trusted Mercedes mechanic locally or online.

How do I know if my Mercedes A-Class AMG won’t start because of the battery?

Signs that your Mercedes’s battery is the issue are, a slow cranking engine, dim headlights, and battery alerts lighting up on the dash. Also make sure the battery terminals are clean, corrosion-free, and tightly fastened. If your battery is older it’s probably best to just replace it entirely.

How to prevent my Mercedes A-Class AMG from failing to start in the future?

To prevent this nuisance from happening again, routine upkeep is crucial. This includes oil changes, testing the battery and scrubbing its terminals, changing out the fuel filter when needed, and getting your Mercedes A-Class AMG evaluated by a mechanic on a regular basis. Additionally, make sure to drive the car regularly so the battery stays charged.

Can I consult an online mechanic if my Mercedes A-Class AMG fails to start up?

Yes, you can. An online mechanic service like ours can offer immediate professional Mercedes mechanic aid and suggestions, without you having to leave your house. If your vehicle fails to start and is stuck in the parking area, this is particularly helpful.

In what ways can websites like MechanicAnswer.com lend a hand if my Mercedes A-Class AMG doesn’t ignite?

We pair you with qualified Mercedes specialists who can offer suggestions tailored to your exact quandary. You can brief them about your vehicle problems, ask as many questions as needed, and even submit videos or pictures so you can fully detail the problem. The specialist auto mechanic will be able to aid, identify the issue, and recommend the best solution and guide you through it.

Interesting Mercedes A-Class AMG Facts

Did you know that the Mercedes A-Class AMG is equipped with a turbocharged 2.0-liter four-cylinder engine that produces a whopping 302 horsepower? That’s enough power to go from 0 to 60 mph in just 4.6 seconds! And if that’s not impressive enough, the A-Class AMG also features a dual-clutch seven-speed automatic transmission for lightning-fast gear changes. But the real showstopper is the AMG Performance 4MATIC all-wheel drive system, which provides unparalleled grip and handling, making it a joy to drive on any road surface. Plus, with its sleek and sporty design, the A-Class AMG is sure to turn heads wherever you go. So, if you’re lucky enough to own one of these beauties, you’re in for a truly exhilarating driving experience!

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.

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