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

red Mercedes-Benz vehicle on roadway near trees

Intro

As an experienced auto mechanic with over two decades of hands on experience, I’ve helped plenty of people battling when their Mercedes GLA-Class Won’t Start. And to be frank, not being able to start your car when you need to drive straight up sucks.

But don’t worry, you’ve come to the right place, no need to keep googling searches like “issues starting Mercedes“, 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 reasons for why your GLA-Class fails to start. I’ll discuss all the routine culprits so you can identify what’s going on, plus what to do to resolve each particular situation. Drawing on my two decades of training and on the job experience, I’ll provide practical troubleshooting tips to get your Mercedes GLA-Class up and moving ASAP!

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Why Won’t My a Mercedes Start?

Mercedes GLA-Class wont start

Before we dive into the laundry list of possible issues and solutions, it’s key to first get on the same page of the core problem. When you hop in your Mercedes GLA-Class and realize “it won’t start!”, there could be several things causing the difficulties. Perhaps the engine isn’t cranking at all, or possibly it’s cranking but not firing. Or you might notice clicking sounds when you try to start it, but ultimately nothing happens. All these situations can be a sign of different mechanical issues.

Common Reasons Why Your Mercedes GLA-Class Won’t Start

There are a host of culprits as to why your GLA-Class won’t turn on. The usual suspects include a dead or weak battery, broken alternator, starter motor failures, fuel system problems, plus electrical or wiring malfunctions. Every one of these issues can present differently, requiring specific methods of troubleshooting and fixing to get you driving again ASAP. All of which, we’ll delve into.

Symptoms of a Mercedes GLA-Class That Won’t Start

Recognizing these red flags will lead you to the underlying mechanical problem. For instance, when you turn the key and you hear it turning over yet no start up, it often means a fuel or ignition issue.

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

The first step in solving the no-start headache is understanding the precise source of the issue. So let’s examine the most common reasons behind the GLA-Class refusing to start when you turn the key.

Battery Issues in a Mercedes GLA-Class

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

In the vast majority of situations, the most typical reason a Mercedes GLA-Class won’t start comes down to issues with the battery. Specifically, a weak or dead battery prevents the engine from turning over. The car’s battery delivers the required power to start the engine and run all your electronics. Symptoms of a struggling battery entail labored or difficult cranking, dim headlights, or a battery alert symbol illuminated 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 GLA-Class

car wont start alternator

The Alternator keeps the battery charged by harnessing engine power while driving. A busted alternator can easily stop your Mercedes GLA-Class from starting since it cannot recharge the battery, depleting it completely so that one day you climb into your wheels and it just can’t start. Clues of a malfunctioning alternator may include an illuminated battery or alternator warning symbol on its dash, dull headlights while idling, or a whirring noise from the engine while running.

Starter Motor Failures in a Mercedes GLA-Class

car wont start wont turn over

The starter motor is key to turning over the engine when you try and start up your Mercedes. Should the starter fail, the engine might not crank, preventing your GLA-Class from starting. Be on the alert for clicking sounds when you turn the key or grinding as you try to start it, possibly meaning starter issues.

Fuel System Issues in a Mercedes GLA-Class

car wont start fuel filter

We’re not talking about running out of gas like a silly goose. Rather, it’s issues with the fuel system itself potentially leaving your GLA-Class unable to start. Your car uses gas uses fuel to mix with air and runs the engine. So problems here like a clogged fuel filter or failing fuel pump relay may mean the engine lacking the fuel it needs to start. Fuel injectors can also get clogged over time, so consider a fuel injector cleaner like Red Line to clear any blockages and improve starting.

Electrical System or Wiring Problems in a Mercedes GLA-Class

car wont start electrical issue
Image Credit: MechanicAnswer.com

Ok, well yes that image is a joke, but I want to emphasize modern vehicles rely on electronics, expanding what can go wrong. With older vehicles, the usual suspects include blown fuses, spark issues, faulty ignition switches, or non-working sensors. Electrical issues and electronics like these may prevent your car from starting. Watch for your car only starting sometimes, warning lights, or failure to crank as signs of an underlying electrical problem. Diagnosing and repairing these often needs a knowledgeable mechanic near you.

Solutions: Let’s Get Your Mercedes GLA-Class 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 inability to start up, and then the next step is to attempt to mend the issue. Here are some tips for typical problems we’ve discussed up to this point:

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

car not starting but battery is fine

If you suspect a battery issue is to blame for your Mercedes’s trouble starting, first check the battery terminals Ensure they are corrosion-free, tight, and correctly connected. If the terminals are in fact corroded, 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:

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 GLA-Class 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 GLA-Class’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 GLA-Class

Car wont start replace alternator needed

If you suspect the alternator is causing your ride to have trouble starting, you can test it yourself. If you can temporarily get the car running (you may need a jump start), and while it’s running, disconnect the positive terminal of the battery. It’s probably the alternator if the engine dies soon after disconnecting the positive lead. However, be careful this test can be dangerous and mess up sensitive electronics in your motor, so it’s best to consult with a professional mechanic locally or online first since this test risks messing up the delicate electronics in your auto.

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 GLA-Class. You find all the information you need about your specific vehicle by searching online for something like “Mercedes vin check free report“, 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 GLA-Class

starter motor issues in a ford

If you suspect the starter motor is the reason behind your Mercedes failing to start, keep an ear out for a clicking noise when you turn the key. If present, but the engine does not turn over, the starter motor likely requires replaced. 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 GLA-Class

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 attempting to start the car. The pump should emit a faint humming for a few seconds. If you can’t hear that noise, the fuel pump could be defective. Problematic starting, stalling, or poor throttle response may also stem from a clogged fuel filter. Filter and pump issues normally require a professional mechanic to diagnose and fix them properly, often using fuel pressure testing and precise 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 Issues in a Mercedes GLA-Class

fuses to check when car wont start

If you think it’s an electrical issue, first examine the fuses for the ignition system, and swap out any that have blown. If your GLA-Class starts after this, it was an effective, cheap repair! However, if it still won’t start, even sometimes, the ignition switch itself could be the cause of the issue. Dash lights on the dashboard could also mean a faulty component. These can be intricate issues needing a professional mechanic to identify and properly repair (see below advice on local mechanics).

How to Prevent Starting Issues in a Mercedes GLA-Class

As grandad used to say: “An ounce of prevention is worth a pound of cure”. Here’s how to avoid future troubles starting your GLA-Class:

Routine Upkeep of Your Mercedes GLA-Class

Regular maintenance on car to prevent starting issues

Regular maintenance is critical to avoiding issues, including oil changes, battery checks, 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 clarification.

Drive Your GLA-Class Frequently

drive regular to avoid car troubles

If your Mercedes GLA-Class happens to sit motionless in your garage or front yard for weeks without being driven, the battery can decrease as it is not being charged up by the engine running, through the alternator. Try your best to use your Mercedes GLA-Class regularly to maintain a charged battery. If you remember you haven’t driven your car in a while, take it for a quick drive 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.

Take Notice Of 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 you have limited time available, 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 GLA-Class that’s having issues or a Mercedes GL-klasse AMG 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 pics and videos so you can show the mechanic what you mean. You can chat with them via online chat or phone call, whichever you prefer. The Mercedes specialist will ID the problem, advise the top solution for your particular situation, and even guide you on basic maintenance step-by-step.

If you’re seeking reassurance from a certified mechanic before purchasing expensive parts, or just pressed for time – online assistance has real benefits. Give it a try – you may be surprised just how easy and stress-free it is.

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

When and How to Get a Local Mercedes Mechanics Help

automobile mobile mechanic

When your Mercedes GLA-Class 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 GLA-Class started again ASAP.

So if you think a mobile mechanic is the best solution for you, instead of searching on Google something like  “mobile car repair 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:

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

  1. Visit their official website here: YourMechanic
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Conclusion

In short, when your Mercedes GLA-Class won’t start, it can be a total bummer. However, grasping what might be triggering the issues, being able to troubleshoot them, and knowing what steps are required in each case, and where to find help if needed, will be a huge help. Remember that regular care is key to preventing most vehicle problems.

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

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

If your Mercedes GLA-Class‘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 engine starter. Check to see if you hear any clicking noises when trying to turn the key. If so, the starter motor is attempting to activate but failing. Have a mechanic inspect the starter motor – it may need to be fixed or swapped out.

Mercedes GLA-Class won’t start but has power?

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

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

If your Mercedes GLA-Class‘s battery checks out OK 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 GLA-Class 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 crank the engine. As the starter motor needs physical fixing or swapping out, consult with a reliable mechanic to get your Mercedes GLA-Class running again.

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

First things first, take a deep breath and try to stay calm. Check for any odd noises, flashing lights, or changes in how it runs that could point to the issue. Chances are the culprit is one of the common problems we’ll talk about here. If you still can’t pinpoint 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 GLA-Class won’t start because of a bad 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 GLA-Class from failing to start in the future?

To prevent this hassle from happening again, scheduled maintenance is vital. This includes oil changes, testing the battery and scrubbing its terminals, changing out the fuel filter when needed, and getting your Mercedes GLA-Class checked out by a mechanic frequently. Also, be diligent about drive the car often so the battery stays charged.

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

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

In what ways can services like MechanicAnswer.com provide assistance if my Mercedes GLA-Class doesn’t ignite?

We link you with qualified Mercedes technicians who can provide suggestions particular to your individual situation. You can brief them about your vehicle issues, ask unlimited questions as needed, and even submit videos or pictures so you can fully detail the problem. The specialist auto mechanic will be able to assist, diagnose the fault, and put forward the best solution and guide you through it.

Interesting Mercedes GLA-Class Facts

Did you know that the Mercedes GLA-Class is actually based on the same platform as the A-Class hatchback? It’s like the cooler, more adventurous sibling of the A-Class, with a higher ground clearance and rugged styling. And get this – the GLA-Class has an off-road mode that adjusts the traction control and transmission for better performance on rough terrain. It’s like your car is ready for an adventure at any moment! Oh, and did you know that the GLA 45 AMG model can go from 0 to 60 mph in just 4.3 seconds? That’s faster than you can say “Mercedes-Benz GLA-Class”! So, if you’re feeling a bit down about your car not starting, just remember all the awesome features and performance stats that make the Mercedes GLA-Class so special. It’s like a little powerhouse just waiting to hit the road again!

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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