John Downes Garage

Brake Check Checklist: 8 Things to Inspect Before You Book

30 July 2026 4 min read

That grinding noise under braking? It's not something to leave until the MOT.

Brakes are the one system on your car where a small problem turns serious quickly. A spongy pedal, a pull to one side, or a metal-on-metal scrape are warning signs — not background noise to ignore on the way to work. Yet plenty of drivers across Brierley Hill and the wider Black Country carry on until the next MOT, by which point what could have been a pad swap has become a disc replacement as well.

Work through this checklist before you call us. It'll help you describe what you're experiencing accurately, and it gives our mechanics a much clearer starting point the moment your car comes in.

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The Brake Inspection Checklist

1. Listen for scraping, grinding or squealing

Most brake pads include a small metal wear indicator that deliberately squeals when the friction material gets thin. Grinding — harsher, metallic — usually means the pad has worn through entirely and the disc itself is being scored. Either noise warrants a prompt look. Squealing that only happens when the car is cold and damp, then clears within a minute, is typically harmless surface rust. Persistent noise is not.

2. Check how the pedal feels

Press the brake pedal firmly and hold it. It should feel solid and stop well before the floor. A pedal that sinks slowly, feels spongy, or needs pumping to build pressure can indicate air in the hydraulic system or a fluid leak — both serious faults. If this is happening to you, don't drive further than necessary until it's been inspected.

3. Feel for vibration or juddering under braking

A steering wheel that shudders when you apply the brakes usually points to warped discs. Discs distort when they overheat repeatedly — common on long descents or when brakes are dragging. It won't correct itself, and it reduces stopping efficiency in ways you might not notice until you need to brake hard.

4. Notice any pulling to one side

If your car consistently drifts left or right under braking, one side is doing more work than the other. A seized caliper is the most common cause — it holds one pad in constant light contact with the disc, generating uneven wear and a pull. Check your tyre pressures first, since an imbalance can mimic this. If the pressures are fine and the pull remains, get the calipers looked at.

5. Look at brake dust on your wheels

A moderate amount of dark dust on the inside of your alloys is normal — it's just pad material. If one wheel is noticeably dustier than the other three, or if one side has almost none, that's a sign of uneven braking effort and worth flagging when you book.

6. Check the brake fluid level and colour

Pop the bonnet and find the brake fluid reservoir — a small translucent pot near the back of the engine bay with MIN/MAX marks. The level should sit between those marks. Brake fluid absorbs moisture over time, which lowers its boiling point and reduces efficiency. Most manufacturers recommend replacing it every two years regardless of mileage. If it looks dark brown rather than pale yellow, it's overdue.

7. Inspect the pads visually (if you can see them)

Through most alloy wheels you can see the brake caliper and, if you look carefully, the edge of the pad pressed against the disc. You're looking for at least 3 mm of friction material remaining. Less than that — anything paper-thin — means they need replacing. As an indicative guide, a straightforward pad replacement is a fraction of the cost of pads plus a disc that's been scored from metal-on-metal contact. Catching it early saves money.

8. Think about when you last had the brakes serviced

Brake pads typically last anywhere between 25,000 and 60,000 miles, depending on driving style, vehicle weight, and the roads you use most. If you do a lot of stop-start driving through Brierley Hill town centre, on the A461, or queuing back towards the Merry Hill roundabouts, your pads will wear faster than on a steady motorway commute. If you genuinely can't remember the last time the brakes were checked, that's your answer.

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What to Do Next

If you've worked through this list and ticked even one or two boxes, it's time for a proper inspection. Visual checks through a wheel tell you only so much — a full assessment means wheels off, disc thickness measured, caliper slides checked, and hydraulic pressure tested.

If you've ticked items 2, 4, or 7 in particular, don't delay. Those symptoms directly affect how quickly your car stops in an emergency.

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John Downes Garage has been carrying out brake inspections, pad replacements, disc changes, and caliper repairs for drivers across Brierley Hill and the Black Country since 1973. Give us a ring on 01384 78504 or get in touch through the website — we'll tell you honestly what your brakes need, and what they don't.

Frequently Asked Questions

Need a Hand With Your Car?

John Downes Garage has looked after Black Country drivers since 1973. Give us a call or pop into the workshop on Stamford Road.

01384 78504