Audi RS5 Won’t Start? Here’s Quick Solutions to Most Common Problems

Introduction

As a trained mechanic with over two decades of hands on experience, I’ve helped plenty of people struggling when their Audi RS5 Won’t Start. And I’ll be straight with you, not being able to start your car when you need to drive straight up sucks.

But don’t lose hope, you’ve come to the right place, no need to keep googling searches like “Audi won’t start right after turning off“, 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 reasons for why your RS5 won’t start. I’ll cover all the typical offenders so you can diagnose what’s happening, plus what to do to resolve each specific problem. Drawing on my two decades of personal experience, I’ll offer usable diagnostic pointers to get your Audi RS5 started ASAP!

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Why Won’t My an Audi Start?

Audi RS5 wont start

Before we tackle the laundry list of possible faults and fixes, it’s vital to first gain an understanding of the central issue. When you hop in your Audi RS5 and discover “it won’t start!”, there could be several parts causing the headaches. Maybe the engine isn’t cranking at all, or possibly it’s cranking but not firing. Or you might hear clicking when you try to start it, but ultimately nothing happens. All these situations can indicate various mechanical issues.

Common Reasons Why Your Audi RS5 Won’t Start

There are a host of reasons why your RS5 won’t start. The usual suspects include a weak or drained battery, defective alternator, starter motor failures, fuel system problems, plus electrical or wiring malfunctions. Every one of these concerns can present differently, requiring specific methods of troubleshooting and fixing to get you driving again pronto. All of which, we’ll delve into.

Symptoms of an Audi RS5 That Won’t Start

Identifying these red flags will lead you to the core issue. Take for example, when you turn the key and you hear it clicking but no ignition, it often indicates a fuel or ignition issue.

Analysis of The Reasons Why Your Audi RS5 Won’t Start

The initial move in remedying the no-start hassle is understanding the exact origin of the issue. So let’s examine the most common reasons behind the RS5 failing to start when you turn the key.

Battery Issues in an Audi RS5

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

In the vast majority of situations, the most typical reason an Audi RS5 won’t start comes down to battery troubles. Specifically, a drained or weak battery prevents the engine from turning over. The car’s battery provides the required power to start the engine and energize all your vehicle’s electrical components. Signals of a failing battery include 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 in an Audi RS5

car wont start alternator

The Alternator keeps the battery juiced up by using engine power while driving. A malfunctioning alternator can easily stop your Audi RS5 from starting since it cannot recharge the battery, draining it completely so that one day you climb into your beloved Audi RS5 and it simply can’t start. Signs of a malfunctioning alternator may include an illuminated battery or alternator warning symbol on its dashboard, dim headlights while idling, or a whirring noise from the engine while running.

Starter Motor Failures in an Audi RS5

car wont start wont turn over

The starter motor is key to cranking the engine when you turn the key to start your Audi. Should the starter fail, the engine might not crank, preventing your RS5 from starting. Listen for clicking sounds when you turn the key or grinding as you try to start it, possibly meaning starter problems.

Fuel System Issues in an Audi RS5

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 that could leave your RS5 unable to drive. 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 may mean 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 clean them out and improve starting.

Electrical System or Wiring Problems in an Audi RS5

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 the number of things that can go wrong. Even in older cars, common culprits include blown fuses, ignition problems, broken ignition switches, or broken sensors. Electrical issues and electronics like these may prevent your Audi RS5 from starting. Be on the lookout for intermittent starting, warning lights, or failure to crank as signs of an underlying electrical problem. Pinpointing and fixing these typically requires a knowledgeable mechanic near you.

Solutions: Let’s Get Your Audi RS5 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 logical next move is to attempt to fix the issue. Here are some tips for frequent issues we’ve discussed up to this point:

How to Identify and Fix Battery Issues in an Audi RS5

car not starting but battery is fine

If you think a battery issue is to blame for your Audi’s trouble starting, first check the battery terminals Make sure they are clean, secure, and properly connected. Should you find corrosion or gunk buildup on the terminals, a baking soda and water solution can help clean them.

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, replacing the battery will be required if it is aged, dead or lacks capacity. Otherwise, even sufficiently charging it to start your RS5 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 replacement. 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 RS5’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 RS5

Car wont start replace alternator needed

If you suspect the alternator is causing your ride to have issues starting, you can test it yourself. If you can temporarily get the vehicle running (you may need a jump start), and while the engine is running, disconnect the positive terminal of the battery. If the car dies fairly quickly after that, it’s likely a bad alternator. Keep in mind though this test can be dangerous and mess up sensitive electronics in your motor, so it’s best to talk to a professional mechanic in your town or online first since this test risks damaging the delicate electronic gizmos 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 Audi RS5. You find all the information you need about your specific vehicle by searching online for something like “where is the vin on 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 RS5

starter motor issues in a ford

If you wonder if the starter motor is the root cause for your RS5 failing to ignite, listen for a clicking sound when you turn the ignition key. If present, but the engine does not turn over, the starter motor likely needs replacement. 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 an Audi RS5

clogged fuel filter car wont start

If you think a fuel system malfunction might be to blame for the no-start, tune your ears for the fuel pump noise when you flip the key to “on” before trying to turn over the car. The pump should emit a quiet humming for a few seconds. If such a noise is not heard, the fuel pump could be faulty. Problematic starting, stalling, or lagging acceleration may also come from a problematic or clogged fuel filter. Filter and pump issues normally require a skilled mechanic to diagnose and fix them properly, often involving fuel pressure testing and precise diagnostic equipment. 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 RS5

fuses to check when car wont start

If you suspect it’s an electrical circuitry problem, first examine the fuses for the ignition system, and replace any that have blown. If your RS5 starts after this, it was an effective, inexpensive repair! But if your Audi RS5 refuses to start, even sometimes, the ignition switch itself could be the cause of the issue. Warning lights on the dashboard could additionally mean a faulty component. These can be complex problems needing a professional mechanic to diagnose and properly repair (see below advice on local mechanics).

How to Prevent Starting Issues in an Audi RS5

As grandfather used to say: “An ounce of prevention is worth a pound of cure”. Here’s how to prevent future issues starting your RS5:

Regular Maintenance of Your Audi RS5

Regular maintenance on car to prevent starting issues

Routine maintenance is critical 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 RS5 Frequently

drive regular to avoid car troubles

If your Audi RS5 happens to sit motionless in your garage or front yard for weeks without being driven, the battery can reduce as it is not being charged up by the engine running, through the alternator. Try your best to drive your vehicle regularly to maintain a charged battery. If you remember you haven’t driven your car in a while, take it for a brief drive around town to ensure there is still a charge left.

Note: Letting the battery fully run out of charge 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 irregular 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 an Audi Mechanic Online

If you have limited time available, or you gave fixing the no start yourself an honest effort but with no luck, consider consulting an Audi 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.

Benefits of an Online Audi 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 Audi mechanics available they can help fix nearly any problem, it doesn’t if matter it’s your RS5 that’s having issues or an Audi S5 B9 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 describe the problems you’re having, ask Audi mechanics endless questions, and even upload photos and videos so you can demonstrate to the mechanic what you mean. You can connect with them via instant messenger or phone call, whichever you prefer. The Audi specialist will ID the problem, advise the best fix for your particular case, and even walk you through basic repairs 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 to see firsthand how convenient fixing problems can be.

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

When and How to Get a Local Audi Mechanics Help

automobile mobile mechanic

When your Audi RS5 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 RS5 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 free estimate“, 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
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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
  2. Get an instant free quote for what you need
  3. Book a time and place for the mechanic to come to you
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  5. Pay when the job is completed.

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

Conclusion

In short, when your Audi RS5 doesn’t turn over, it can be a total bummer. However, grasping what might be causing the issues, being able to diagnose them, and knowing what steps are required in each case, and where to get help if needed, will be a huge help. Remember that regular care is key to preventing most car issues.

Frequently Asked Questions (FAQs) When a Audi RS5 Won’t Start

Audi RS5 won’t start but lights come on?

If your Audi RS5‘s lights illuminate 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 noises when trying to turn the key. If so, the starter motor is trying to engage but failing. Get a mechanic inspect the starter motor – it may need to be fixed or swapped out.

Audi RS5 won’t start but has power?

When your Audi RS5 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. Check around the back seat when cranking the key – you should hear the fuel pump prime for a few seconds. If not, have a mechanic check the fuel system.

Audi RS5 won’t start but battery is good?

If your Audi RS5‘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 correctly pinpoint the specific electrical fault and have it repaired.

Audi RS5 won’t start just clicking?

When you turn the key and just hear clicking but the engine doesn’t crank, the most common cause is a faulty starter motor. The click comes from the starter solenoid trying to engage the starter motor, but the motor itself fails to crank the engine. As the starter motor needs mechanical repair or replacing, seek help from a reliable mechanic to get your Audi RS5 running again.

What if my Audi RS5 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. Chances are 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 RS5 won’t start because of the battery?

Signs that your Audi’s battery is the issue include, a slow cranking engine, dim headlights, and battery warning symbols lighting up on the dash. You can also check that the battery terminals are clean, corrosion-free, and tightly fastened. If your battery is older it’s probably best to just replace it fully.

How to prevent my Audi RS5 from failing to start in the future?

To prevent this frustration from repeating, routine maintenance is vital. This includes oil changes, checking the battery and cleaning its terminals, replacing the fuel filter when needed, and getting your Audi RS5 inspected by a mechanic routinely. Additionally, be diligent about drive the car regularly so the battery stays charged.

Can I consult an online mechanic if my Audi RS5 fails to start up?

Yes, you can. An online mechanic service like ours can offer instant professional Audi mechanic aid and suggestions, without you having to leave your home. This is particularly beneficial if your Audi RS5 is unable to start and is immobile in the parking area,.

How can websites like MechanicAnswer.com provide assistance if my Audi RS5 won’t turn on?

We link you with qualified Audi specialists who can supply suggestions specific to your unique situation. You can inform them about your auto troubles, ask unlimited questions as needed, upload images and videos so you can fully detail the problem. The mechanic will be able to assist, pinpoint the issue, and put forward the best remedy and walk you through it.

Interesting Audi RS5 Facts

Did you know that the Audi RS5 has a top speed of 174 mph? That’s faster than most sports cars on the market! And get this – it can go from 0 to 60 mph in just 3.9 seconds. That’s like being launched into warp speed! Plus, the RS5 comes with a 2.9-liter V6 engine that produces a whopping 444 horsepower. It’s like having a race car engine under the hood of a luxury sedan. And let’s not forget about the sleek and aggressive design that turns heads everywhere it goes. With its wide stance and bold lines, the RS5 is a true showstopper. So, if you’re lucky enough to own one of these bad boys, you’re in for the ride of a lifetime. Just imagine the thrill of hitting those high speeds and feeling the power of that engine. It’s no wonder you’re itching to get it started and hit the road!

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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 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