Audi A5 Wont Start? Here’s Quick Solutions to Most Common Problems

Intro

As a qualified car mechanic with over 20 years of experience, I’ve seen plenty of people struggling when their Audi A5 Won’t Start. And let’s face it, not being able to start your car when you need to drive is extremely bothersome.

But don’t lose hope, you’ve come to the right place, no need to keep googling searches like “Audi having trouble turning over“, 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 usual explanations for why your A5 refuses to start. I’ll cover all the commonplace suspects so you can identify what’s happening, plus what to do to resolve each particular situation. Drawing on my 20 years of personal experience, I’ll supply usable diagnostic pointers to get your Audi A5 fire up and moving 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.

So Why Won’t My an Audi Start?

Audi A5 wont start

Before we dive into the laundry list of possible faults and fixes, it’s vital to first get on the same page of the central issue. When you climb into your Audi A5 and discover “it won’t start!”, there could be a number of parts causing the difficulties. Perhaps the engine isn’t cranking at all, or maybe it’s cranking but not firing. Or you might notice clicking sounds when you try to start it, but sadly no ignition occurs. All these situations can signal different problems under the hood.

Common Reasons Why Your Audi A5 Won’t Start

There are a host of contributing factors why your A5 won’t start up. The usual suspects include a dead or weak battery, defective alternator, starter motor issues, fuel system problems, plus electrical or wiring malfunctions. Every one of these concerns can show up differently, requiring specific methods of troubleshooting and fixing to get you back on the open road pronto. All of which, we’ll delve into.

The AA Mobile Mechanic UK

Symptoms of an Audi A5 That Won’t Start

Identifying these warning signs will guide you toward the core issue. Take for example, 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 Audi A5 Won’t Start

The initial move in solving the no-start headache is understanding the specific cause of the problem. So let’s take a closer look at the most frequent reasons behind the A5 struggling to start when you turn the key.

Car Battery Issues Preventing Your Audi A5 From Starting

Car wont start battery is good

In the majority of cases, the most common reason an Audi A5 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 necessary electrical juice to start the engine and run all your vehicle’s electrical components. Symptoms of a failing battery include sluggish or strained cranking, faint 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 Audi A5 Starting

car wont start alternator

The Alternator keeps the battery charged by harnessing engine power while driving. A busted alternator can easily stop your Audi A5 from starting since it fails to recharge the battery, draining it fully so that one day you climb into your ride and it just can’t start. Clues of a malfunctioning alternator can be an illuminated battery or alternator caution light on its dashboard, dull headlights while idling, or a whirring noise from the engine while running.

The AA Mobile Mechanic UK

Starter Motor Failures in an Audi A5

car wont start wont turn over

The starter motor is key to cranking the engine when you attempt to start your Audi. If the starter is faulty, the engine can’t crank, keeping your A5 from starting. Pay attention to clicking sounds when you turn the key or grinding during cranking, potentially signaling starter troubles.

Fuel System Issues Can Prevent an Audi A5 From Starting

car wont start fuel filter

We’re not talking about running out of gas like a silly goose. Instead, it’s issues with the fuel system itself that could leave your A5 unable to start. Your Audi A5 uses fuel to combine with oxygen and runs the engine. So problems here like a clogged fuel filter or damaged 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 consider a fuel injector cleaner like Red Line to clean them out and improve starting.

Electrical System or Wiring Problems in an Audi A5 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 modern vehicles rely on electronics, increasing what can go wrong. With older cars, common culprits include blown fuses, ignition problems, broken 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, dashboard alerts, or failure to crank as signs of an underlying electrical problem. Diagnosing and repairing these often needs an experienced mechanic near you.

The AA Mobile Mechanic UK

Solutions: Let’s Get Your Audi A5 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 failure to start, and then the next step is to try to repair the problem. Here are some tips for frequent problems we’ve discussed up to this point:

How to Identify and Fix Battery Issues in an Audi A5

car not starting but battery is fine

The first step if a battery problem is suspected for the no start is to inspect the battery terminals. Make sure they are clean, tight, and properly connected. If the terminals are in fact dirty, try scrubbing them with a baking soda and water solution.

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:

Amazon Automotive Banner Car Parts & Accessories

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 A5 may only provide temporary relief before it likely runs out of power again soon. 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 Audi 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 A5’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 an Audi A5

Car wont start replace alternator needed

If you think the alternator is the reason your vehicle won’t start, a test can confirm. If you can temporarily get the vehicle 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 conks out soon after disconnecting the positive lead. Keep in mind though this test can be dicey and damage sensitive electronics in your ride, so seeking advice from a trained mechanic in your area or online is best prior to trying it.

The AA Mobile Mechanic UK

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 Audi A5. You find all the information you need about your specific vehicle by searching online for something like “vin lookup Audi“, 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 an Audi A5

starter motor issues in a ford

If you question if the starter motor is the source of your A5 refusing to ignite, listen for a clicking sound 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.

Amazon Automotive Banner Car Parts & Accessories

How to Identify and Solve Fuel System Problems in an Audi A5

clogged fuel filter car wont start

If you think a fuel system malfunction might be to blame for 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 make a faint humming for a few seconds. If you can’t hear that noise, the fuel pump could be faulty. Difficult starting, stalling, or lagging acceleration may also result from a blocked fuel filter. Both pump and filter issues normally need a skilled mechanic to diagnose and fix them properly, often using fuel pressure testing and specialized diagnostic gear. Later in this article, I detail the best ways to get help from a local Audi mechanic near you. 

How to Fix Electrical or Wiring Problems in an Audi A5

fuses to check when car wont start

If you think it’s an wiring issue, first inspect the fuses for the ignition system, and swap out any that have blown. If your A5 starts after this, it was an effective, cheap repair! But if your Audi A5 refuses to start, even sometimes, the ignition switch itself could be the cause of the issue. Dash lights on the dashboard could additionally mean a faulty sensor. These can be complex problems needing a professional mechanic to identify and fix (see below advice on local mechanics).

Amazon Automotive Banner Car Parts & Accessories

Preventive Steps

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 A5:

Routine Maintenance of Your Audi A5

Regular maintenance on car to prevent starting issues

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

Drive Your A5 Regularly

drive regular to avoid car troubles

If your Audi A5 happens to sit motionless in the garage or front yard for weeks without being driven, the battery can decrease as it is not being recharged by the engine running, through the alternator. Try your best to use your vehicle regularly to maintain a charged battery. If you remember you haven’t 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 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.

The AA Mobile Mechanic UK

When to Ask an Audi 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 an Audi mechanic online. It delivers expert guidance in just minutes from the comfort of home, and is far less expensive than a tow and diagnosis at the local garage.

Advantages of an Online Audi Mechanic

Happy mechanic repairing car looking at camera

Online Audi mechanics can review your symptoms, past repair history, and circumstances to provide troubleshooting steps tailored to your situation. With so many Audi mechanics available they can help fix nearly any problem, it doesn’t if matter it’s your A5 that’s having issues or an Audi A4 allroad 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 issues you’re having, ask Audi mechanics unlimited questions, and even submit images and videos so you can demonstrate to the mechanic what you mean. You can connect with them via online chat or phone call, whichever you prefer. The Audi mechanic will ID the problem, advise the top solution for your specific case, and even walk you through simple repairs step-by-step.

The AA Mobile Mechanic UK

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 – you may be surprised just how easy and stress-free it is.

So feel free to try out our Audi mechanic chat service and see for yourself!

When and How to Get a Local Audi Mechanics Help

automobile mobile mechanic

When your Audi A5 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 A5 started again ASAP.

So if you think a mobile mechanic is the best solution for you, instead of searching on Google something like  “mechanics that come to you“, 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.

Amazon Automotive Banner Car Parts & Accessories

Conclusion

In short, when your Audi A5 doesn’t turn over, it can be a major inconvenience. However, understanding what might be triggering the issues, being able to troubleshoot them, and knowing what steps are required in each case, and where to get help if needed, will be a huge help. Remember that routine maintenance is key to preventing most vehicle issues.

Frequently Asked Questions (FAQs)

What if my Audi A5 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. Most likely the culprit is one of the common problems we will talk about here. If you still can’t locate the exact issue, you’ll have to consult a trusted Audi mechanic locally or online.

Determine if my Audi A5 won’t start because of the battery?

Clues that your Audi’s battery is the issue include, a slow cranking engine, dim front lights, and battery warning symbols lighting up on the dash. Also check that 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.

The AA Mobile Mechanic UK

How to prevent my Audi A5 from failing to start in the future?

To prevent this frustration from reoccuring, routine maintenance is essential. This includes oil changes, testing the battery and scrubbing its terminals, replacing the fuel filter when necessary, and getting your Audi A5 evaluated by a mechanic routinely. Also, remember to drive the car often so the battery stays charged.

Can I consult an online mechanic if my Audi A5 fails to start up?

Yes, you can. An online mechanic service like ours can offer immediate professional Audi mechanic aid and suggestions, without you having to leave your residence. {This is especially helpful if your Audi A5 is unable to start and is immobile in the driveway,.

In what ways can websites like MechanicAnswer.com be of service if my Audi A5 fails to start?

We link you with qualified Audi mechanics who can supply suggestions specific to your individual predicament. You can inform them about your vehicle issues, ask as many questions as needed, upload images and videos so you can show in detail the issue. The specialist auto mechanic will be capable to aid, pinpoint the problem, and propose the ideal remedy and walk you through it.

Interesting Audi A5 Facts

Did you know that the Audi A5 comes with a feature called “Virtual Cockpit” that allows you to customize the digital display in front of you? It’s like having your own personal dashboard designer! And get this – the A5 also has a built-in Wi-Fi hotspot, so you can stay connected on the go. Plus, the sleek and sporty design of the A5 isn’t just for looks – it’s actually engineered to reduce drag and improve aerodynamics, giving you a smoother and more efficient ride. And if you’re a music lover, you’ll be thrilled to know that the A5 comes with a Bang & Olufsen sound system that will make your favorite tunes sound absolutely incredible. So even if you’re currently having trouble getting your A5 started, just remember all the amazing features and technology that make it such a standout vehicle. You’ll be back on the road in no time, enjoying everything the Audi A5 has to offer!

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