Broken car? Two ways to fix it — ask a qualified UK mechanic for £14.99 (reply in 6 hrs) or find a trusted local mechanic near you. No AI. No chatbot.
Describe the problem, get a mechanic's answer
Tell us what the car is doing — the noise, when it happens, what makes it worse — and you get a plain-English answer about the likely cause, whether it is safe to keep driving, and what the repair typically costs in the UK.
The three things that narrow almost any fault: when it happens (cold start, braking, turning, motorway speed), what changes it (speed, revs, steering angle, temperature) and whether a warning light is on.
The symptoms that come up most
Grinding or squealing when braking, a knock over bumps, a whine that rises with road speed, vibration through the steering wheel, a clutch biting high, white or blue smoke, and a car that cranks but will not start. Each has a short list of usual suspects, and the pages here work through them in order of likelihood and cost.
Smells matter too. Sweet smell means coolant, burning-rubber means belt or clutch, rotten eggs means catalytic converter, and fuel smell means stop and investigate before doing anything else.
When to stop driving
Brake pedal going to the floor, a flashing engine management light, red oil pressure or temperature warning, steam from the bonnet, or a knocking noise from inside the engine that rises with revs. In all of those, the cheapest option is recovery, not one more journey.
Everything else is usually a book-it-in situation rather than an emergency, but the longer a grinding brake or a knocking suspension joint is left, the more it costs to put right.
Frequently asked questions
What information helps most?
When the fault happens, what changes it, whether a warning light is on, and the car's registration and mileage.
Can you diagnose without seeing the car?
We can narrow it down and tell you what is likely and what it costs. A confirmed diagnosis needs the car and live data.
When should I stop driving?
A soft brake pedal, flashing engine light, red oil or temperature warning, steam, or engine knocking — all mean stop and recover the car.
Does it cost anything to ask?
The symptom guides are free to read. The paid Ask a Mechanic service gives you a personal written answer.