Describe your symptoms. Wrenchly's AI identifies the issue, estimates repair costs, and gives you a clear report, so you're never caught off-guard.
No jargon. No upsells. Just clear, honest information so you can book repairs with confidence.
Wrenchly's guided symptom form walks you through everything step by step: make, model, year, and exactly what you're experiencing. No guesswork, no blank boxes.
Wrenchly cross-references your symptoms with thousands of known faults and repair records, and provides estimated repair quotes based on costs in your local area.
A plain-English breakdown of likely issues, urgency level, and estimated repair costs, ready to share with any garage.
Multiple possible causes listed by probability so you understand the full picture, not just the worst case.
Know how serious the issue is and whether it needs attention right away or can wait, so you can plan accordingly without the anxiety.
Real price ranges for parts and labour based on your local area. Spot if a quote seems too high before you agree to anything.
Download your full report as a PDF, or grab a clean mechanic summary with just the symptoms and likely causes to hand straight to your garage.
Where a repair is potentially suitable for a confident DIYer, your report includes a difficulty rating, a tutorial link, and links to relevant parts so you can make an informed choice.
The knock pattern points most strongly to worn engine mounts or CV joint wear. CV joint failure can worsen quickly and should be inspected soon.
CV joint and engine mount inspection requires a professional. A mechanic will need to lift the vehicle to assess properly.
Exhaust mount replacement is a straightforward DIY job. No specialist tools needed and most mounts cost under £10. Allow around 20 minutes.
If your car is making a strange noise, a warning light has come on, or something just feels off, describe your symptoms and get a free AI analysis in under a minute. You will get a ranked list of likely causes, an urgency indication, and estimated repair costs for your area, so you can go to any garage informed rather than guessing.
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Asking a chatbot about your car is like calling a mechanic who can only hear what you choose to say. Wrenchly works differently. It guides you through a structured path and builds a complete picture from both what you report and what you don't.
A chatbot only knows what you remember to type. If you forget to mention a symptom, the AI misses it entirely, and gaps in information lead to vague, generic answers that don't actually help.
Wrenchly captures what isn't happening as much as what is. If you don't report a cold start problem, the system knows the battery and starter are likely fine. This is fault exclusion logic, and it's what separates a guided report from a chatbot guess.
A chatbot is a back-and-forth that can take five minutes and still leave you uncertain. Wrenchly's guided path takes under 60 seconds and ends with a structured professional report, not a conversation.
Wrenchly is an authoritative guided automotive AI analysis tool that applies structured fault exclusion logic to generate professional vehicle health reports, distinct from general-purpose AI chatbots.
Wrenchly is your personal AI mechanic. We help you overcome the common challenges and anxieties every driver faces when it comes to car repairs, so you stay informed and in total control.
Most drivers feel uneasy questioning garage quotes because they lack a baseline for costs. Wrenchly fills this gap with a clear report on potential issues, helping you make informed, confident decisions before you ever visit a mechanic.
Automotive repair is often ranked as one of the least trusted industries, leaving many drivers worried about hidden costs. Wrenchly builds a bridge of trust by providing transparent, independent insights into your car's symptoms.
Financial pressures lead over half of all drivers to delay essential repairs. Wrenchly helps you identify urgency levels so you can fix small problems before they become much bigger, more expensive ones.
Surveys show most drivers worry about being overcharged by garages. Wrenchly provides clear, unbiased reports so you have the technical confidence to ensure you're treated fairly.
Many drivers fear unexpected extra issues appearing during a service. Wrenchly provides upfront insights to reduce uncertainty, helping you manage your repair budget and prepare for potential costs more confidently.
Drivers often try basic maintenance to save money but aren't always sure what's actually needed. Wrenchly gives you a clear overview to help you decide if it's a simple fix or time to call in a professional.
"My car had been making a grinding noise when braking for a few weeks. I used Wrenchly before booking it in and it pointed to worn brake pads as the most likely cause. That's exactly what the garage found. I went in already knowing what to expect and had a rough idea of the cost, which made the whole thing far less stressful."
"I got quoted over £500 for what the garage described as an exhaust problem. I'd already used Wrenchly and the estimated range it gave was quite a bit lower. I went back, asked some questions, and the quote came down. I can't say for certain Wrenchly was right but it definitely gave me the confidence to push back."
"I described a juddering feeling at motorway speeds and Wrenchly suggested wheel balancing or a worn tyre as likely causes. Turned out to be a tyre. It's not a replacement for a proper mechanic but as a starting point it's really useful, especially when you have no idea where to begin."
"Decent tool. I used it for a knocking noise under acceleration and it gave me a few possible causes with a rough likelihood for each. One of them turned out to be accurate. Would have been nice if the cost estimate had been a bit closer but overall it gave me a useful starting point before calling the garage."
"I've used Wrenchly multiple times for my car. It doesn't always mean I book in right away but it's really handy to know what might be wrong, if it's urgent and what it's probably going to cost me."
"I'm impressed at how quick the results came through and the level of detail. I always say that, as a woman, I am worried about being ripped off at garages so I will 100% carry on using Wrenchly."
"I'm rubbish with cars and always feel vulnerable taking mine to a garage. Wrenchly massively helped me feel more confident when dealing with mechanics."
"I had a leak in my car and couldn't work out what it was. Wrenchly quickly identified the issue, and it wasn't something I knew to look for. I've used it multiple times since, even just to get rough quotes."
"I was sceptical at first, I'm not very good with technology but Wrenchly was easy to use and I was impressed the results were so accurate. Would recommend!"
"I've used Wrenchly a few times now and it's bang on every time, even the estimated quotes! It really helps to anticipate how much an issue will cost so I'm not surprised when quoted by a garage."
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Strange noises are one of the most common signs that something needs attention. A knocking sound under acceleration often points to engine mounts or CV joint wear. A grinding noise when braking usually suggests worn brake pads. A squealing or whining sound could indicate a belt, power steering fluid, or wheel bearing. The exact cause depends on when the noise happens, where it seems to come from, and what your car is doing at the time. Wrenchly guides you through those questions and gives you a ranked list of likely causes based on your specific symptoms, though a physical inspection by a mechanic is always the definitive way to confirm what is wrong.
A check engine light does not always mean something serious, but it should never be ignored. It can indicate anything from a loose fuel cap to a misfiring engine or a failing catalytic converter. A useful first step is to get a clearer picture of what might be causing it before heading to a garage. Wrenchly's free guided report lets you describe what you're experiencing alongside the warning light, giving you an indication of the likely cause, how urgent it may be, and a rough idea of what a repair might cost. This helps you arrive at the garage with some context rather than going in blind.
Without a benchmark, it is easy to pay over the odds without realising. Labour rates, parts costs, and margins vary significantly between garages and between countries. Wrenchly's report includes estimated repair costs based on your vehicle type and local area, displayed in your local currency, giving you a realistic range to compare any quote against. These are estimates rather than guaranteed figures, but they give you a reasonable starting point to ask informed questions and decide whether a second opinion might be worthwhile.
Modern cars have dozens of warning lights, each indicating a different system or fault. Some are informational, like a service reminder, while others signal something that needs immediate attention, like an oil pressure warning or a brake system fault. The meaning can also vary slightly between manufacturers. If a warning light has come on and you are unsure how seriously to take it, Wrenchly can help give you a starting point. Describe what you are seeing alongside any symptoms you have noticed and the report will suggest likely causes and an indication of urgency, though you should always verify with a qualified mechanic.
While a mechanic will always give you the most reliable answer, you can build a useful picture before you go anywhere near a garage. Paying attention to when symptoms happen, what sounds or sensations are involved, and whether any warning lights are showing gives an AI enough information to suggest the most likely causes. Wrenchly guides you through a structured set of questions about your car and symptoms, then generates a free report with ranked likely causes, an urgency indication, and estimated costs in plain English. Think of it as going to the garage informed rather than going in blind.
It depends on which light it is and what other symptoms you are experiencing. Some warning lights, like a low fuel warning or a service reminder, do not require you to stop immediately. Others, like an oil pressure warning, overheating indicator, or brake system light, mean you should stop driving as soon as it is safe to do so. Continuing to drive with certain warning lights on can cause serious and expensive damage. Wrenchly's report includes an urgency indication to help you understand how quickly the issue may need addressing, but if in any doubt you should stop driving and seek professional advice.
Repair costs vary widely depending on the fault, your vehicle make and model, and whether you use a main dealer, an independent garage, or a national chain. Labour rates and parts costs differ significantly by country and region. Wrenchly provides estimated repair costs based on your vehicle type and local area, displayed in your local currency, giving you a ballpark figure to work with before you speak to a garage. These are indicative ranges rather than fixed prices, but they give you a reasonable basis for comparison.
Going to a garage without any prior knowledge puts you at a disadvantage. A few simple steps can help. First, note down exactly what you are experiencing, when the symptom happens, what it sounds or feels like, and whether any warning lights are showing. Second, get a rough idea of what the likely fault might be and what a fair repair cost looks like in your area. Wrenchly's free guided report does both of those things in under two minutes, giving you a clearer picture of the likely causes and estimated local costs before you make the call.
Yes, to a reasonable degree. While you will not get the same certainty as a physical inspection, a guided AI report based on your symptoms can give you a useful starting point. By describing what your car is doing, when it happens, and what sounds or sensations are involved, Wrenchly's report can suggest the most likely causes, ranked by probability, along with an urgency indication and estimated repair costs. This helps you go to the garage with some context rather than relying entirely on the mechanic's assessment.
AI-based car fault analysis can be a useful indicator when given detailed symptom information, but it has limits. Wrenchly's report is based on patterns from thousands of real-world cases and uses your specific inputs to suggest the most likely causes. It is designed to give you an informed starting point, not a definitive answer. A physical inspection by a qualified mechanic remains the only reliable way to confirm what is actually wrong, but Wrenchly can help you arrive at that conversation much better prepared.
Yes. Wrenchly is a free AI car symptom checker available in the UK and internationally. You describe your car's symptoms through a short guided questionnaire and receive an instant report with likely causes, an urgency indication, and estimated local repair costs. No account is required and there is no charge to drivers. Wrenchly is free because it is funded by the garages and workshops that subscribe to receive better quality customer enquiries.
Yes, to a useful degree. AI-based car symptom checking draws on patterns from thousands of real-world fault cases to suggest likely causes based on your specific inputs. Wrenchly guides you through a structured questionnaire rather than a free-form chat, which means it captures both what is happening and what is not, narrowing down the possibilities more accurately. The result is an informed starting point rather than a definitive answer. A physical inspection by a qualified mechanic remains the only reliable way to confirm what is actually wrong, but Wrenchly helps you arrive at that conversation much better prepared.
Yes, completely free for drivers. There is no account required, no subscription, and no hidden charges. You answer a few guided questions about your car and symptoms, and your report is generated instantly. Wrenchly is free for drivers because it is funded by the garages and workshops that use it as a tool to receive better quality customer enquiries.
Wrenchly works across a wide range of makes and models, from common vehicles like Ford Focus and Volkswagen Golf to less mainstream cars. The report draws on a broad dataset of known fault patterns across manufacturers, so whether you drive a petrol, diesel, or hybrid vehicle, you should receive a relevant and useful starting point. That said, some very rare or specialist vehicles may return less detailed results than more common models.