Audi 90 Wont Start? Here’s Quick Solutions to Most Common Problems

Introduction

As a qualified car mechanic with over two decades of experience, I’ve seen plenty of people battling when their Audi 90 Won’t Start. And let’s face it, 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 starting problems“, I got you covered. My name’s Robby, a certified auto mechanic with over two decades of experience, and in this guide, I’ll explain the frequent explanations for why your 90 fails to start. I’ll discuss all the routine suspects so you can identify what’s causing issues, plus what to do to fix each specific situation. Drawing on my 20 years of training and on the job experience, I’ll provide actionable repair advice to get your Audi 90 up and moving ASAP!

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Why Won’t My an Audi Start?

Audi 90 wont start

Before we dive into the list of possible faults and fixes, it’s vital to first gain an understanding of the central issue. When you climb into your Audi 90 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 sadly no ignition occurs. All these situations can be a sign of various problems under the hood.

Common Reasons Why Your Audi 90 Won’t Start

There are numerous contributing factors why your 90 won’t turn on. The usual suspects cover a dead or weak battery, broken alternator, starter motor issues, fuel system snags, plus electrical or wiring malfunctions. Each of these issues can show up differently, needing specific methods of troubleshooting and fixing to get you driving again as quick as possible. All of which, we’ll delve into.

Symptoms of an Audi 90 That Won’t Start

Spotting these warning signs will lead you to the main cause. Take for example, when you turn the key and you hear it clicking but no ignition, it often means a problem with either fuel delivery or ignition issues.

Analysis of The Reasons Why Your Audi 90 Won’t Start

The first step in fixing the no-start nuisance is pinpointing the specific origin of the trouble. So let’s explore the most frequent explanations for the 90 failing to start when you turn the key.

Battery Issues in an Audi 90

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

In the majority of cases, the most typical reason an Audi 90 won’t start comes down to issues with the battery. Specifically, a drained or weak battery prevents the engine from turning over. The car’s battery delivers the required power to ignite the engine and energize all your vehicle’s electrical components. Symptoms of a failing battery entail sluggish or strained 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 90

car wont start alternator

The Alternator keeps the battery juiced up by using engine power while driving. A worn out alternator can easily prevent your Audi 90 from starting since it cannot recharge the battery, depleting it fully so that one day you hop in your beloved Audi 90 and it simply can’t start. Clues of a wonky alternator can be a lit up battery or alternator warning symbol on its dash, dim headlights while idling, or a whirring noise from the engine while running.

Starter Motor Failures in an Audi 90

car wont start wont turn over

The starter is crucial for cranking the engine when you go to start up your Audi. Should the starter fail, the engine may fail to crank, preventing your 90 from starting. Be on the alert for clicking noises when you turn the key or grinding as you try to start it, potentially signaling starter issues.

Fuel System Issues in an Audi 90

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 90 unable to start. Your car uses gas uses fuel to combine with oxygen 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 clean them out and improve starting.

Electrical System or Wiring Problems in an Audi 90

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. With older cars, the usual suspects include blown fuses, spark issues, faulty ignition switches, or non-working sensors. Faulty wiring and electronics like these may prevent your car from starting. Watch for intermittent starting, warning lights, or failure to crank as hints of an underlying electrical problem. Diagnosing and repairing these typically requires a certified mechanic near you.

Solutions: Let’s Get Your Audi 90 Starting Again!

If you think you might know what the issue may be, it’s time to figure out the cause of your car’s starting failure, and then the next step is to attempt to fix the problem. Here’s advice for the common problems we’ve discussed up to this point:

How to Identify and Fix Battery Issues in an Audi 90

car not starting but battery is fine

If you suspect a battery issue is to blame for your Audi’s trouble starting, first check the battery terminals Verify they are clean, tight, and properly connected. If the terminals are in fact corroded, try cleaning them with a sodium bicarbonate(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:

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 90 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 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 90’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 90

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), with the engine on, detach the positive battery terminal. It’s probably the alternator if the motor dies soon after disconnecting the positive lead. Keep in mind though this test can be dicey and harm sensitive electronics in your ride, so seeking advice from a trained mechanic in your area or online is best before trying it.

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 90. You find all the information you need about your specific vehicle by searching online for something like “vin check for mileage 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 90

starter motor issues in a ford

If you question if the starter motor is the source of your 90 failing to start, listen carefully for a clicking noise when you turn the ignition key. If heard, but the engine does not turn over, the starter motor likely needs 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 an Audi 90

clogged fuel filter car wont start

If you suspect a fuel system malfunction might be to blame for the no-start, listen closely for the fuel pump hum when you turn the key to “on” before trying to turn over the car. The pump should emit a faint humming for a few seconds. If such a noise is not heard, the fuel pump could be defective. Difficult starting, stalling, or poor throttle response may also come from a blocked fuel filter. Filter and pump issues usually require a professional mechanic to diagnose and fix them properly, often involving 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 Repair Electrical or Wiring Issues in an Audi 90

fuses to check when car wont start

If you think it’s an electrical circuitry issue, first examine the fuses for the ignition system, and swap out any that have blown. If your 90 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 identify and fix (see below advice on local mechanics).

How to Prevent Starting Issues in an Audi 90

As dad would say: “An ounce of prevention is worth a pound of cure”. Here’s how to prevent future problems starting your 90:

Regular Upkeep of Your Audi 90

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 vehicle regularly. If unsure about maintenance for your model, ask a mechanic locally or online for guidance.

Drive Your 90 Regularly

drive regular to avoid car troubles

If your Audi 90 happens to sit unmoved in your garage or driveway for weeks 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 drive your vehicle regularly to maintain a charged battery. If you remember you have not driven your car in a while, take it for a brief spin 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.

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 an Audi 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 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 90 that’s having issues or an Audi 80 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 explain the issues you’re having, ask Audi mechanics endless questions, and even submit images and videos so you can demonstrate to the mechanic what you mean. You can talk to them via instant messenger or voice chat, whichever you prefer. The Audi mechanic will diagnose the problem, recommend the best fix for your particular case, and even walk you through simple 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 – you may be surprised just how easy and stress-free it is.

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

When and How to Get a Local Audi Mechanics Help

automobile mobile mechanic

When your Audi 90 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 90 started again ASAP.

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

Reasons I recommend them:

  • They use experienced ASE-certified mechanics
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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
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Super easy, super reliable, super convenient, and highly recommended.

Conclusion

In short, when your Audi 90 doesn’t turn over, it can be a total bummer. However, grasping what might be triggering the issues, being able to diagnose them, and knowing what actions are required in each case, and where to get help if necessary, will be a huge help. Remember that regular care is vital to avoiding most car problems.

Frequently Asked Questions (FAQs) When a Audi 90 Won’t Start

Audi 90 won’t start but lights turn on?

If your Audi 90‘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 noises when attempting to crank the key. If so, the starter motor is attempting to activate but failing. Have a mechanic examine the starter motor – it may need to be fixed or swapped out.

Audi 90 won’t start but has power?

When your Audi 90 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 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.

Audi 90 won’t start but battery is good?

If your Audi 90‘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.

Audi 90 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 trying to engage the starter motor, but the motor itself fails to spin up the engine. As the starter motor needs mechanical repair or replacing, seek help from a reliable mechanic to get your Audi 90 running again.

What if my Audi 90 won’t start up?

First things first, take a deep breath and don’t panic. Look for any odd noises, flashing lights, or changes in how it runs that could point to the issue. Chances are 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 Audi mechanic locally or online.

Determine if my Audi 90 won’t start because of a bad battery?

Clues that your Audi’s battery is the issue include, a slow cranking engine, dim front lights, and battery alerts lighting up on the dash. You can also make sure the battery terminals are clean, corrosion-free, and tightly fastened. If your battery is exhausted it’s probably best to just replace it fully.

How to prevent my Audi 90 from failing to start in the future?

To prevent this frustration from repeating, regular upkeep is essential. This includes oil changes, inspecting the battery and cleaning its terminals, changing out the fuel filter when required, and getting your Audi 90 checked out 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 Audi 90 fails to start up?

Yes, you can. An online mechanic service like ours can offer instant professional Audi mechanic help and advice, without you having to leave your house. This is particularly beneficial if your Audi 90 is unable to start and is stuck in the parking area,.

How can services like MechanicAnswer.com lend a hand if my Audi 90 fails to start?

We link you with certified Audi mechanics who can provide recommendations specific to your unique predicament. You can update them about your auto troubles, ask unlimited questions as needed, and even submit images and videos so you can comprehensively demonstrate the issue. The specialist auto mechanic will be capable to help, identify the issue, and recommend the ideal plan of action and walk you through it.

Interesting Audi 90 Facts

Did you know that the Audi 90 was actually the predecessor to the Audi A4? It’s like the OG of the A4 family! And get this – the Audi 90 was the first Audi model to feature a 5-cylinder engine, making it a total trailblazer in the automotive world. Plus, back in the day, the Audi 90 was a total speed demon, with some models reaching a top speed of 140 mph! That’s faster than a cheetah, seriously! And if you’re into vintage vibes, you’ll love that the Audi 90 was a total 80s icon, with its boxy yet sleek design. So if you’re feeling a little down about your Audi 90 not starting, just remember all the cool and interesting history behind this awesome ride!

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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