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Written by a diagnostic technician

Knowledge base

Car tips &
quick fixes.

Common car problems explained in plain English — what's causing it, what to check yourself, and when to call someone in. Free, no sign-up, written by a working diagnostic technician.

Has a Fuse Blown? How to Check and Replace It

A blown fuse is one of the most common — and cheapest — causes of electrical gremlins. Here's how to find it, test it, and fix it in 10 minutes.

Car Won't Start? Try a Jump Start First

Before calling a recovery vehicle, a flat battery is the most common reason a car won't start — and it's fixable in 10 minutes with jump leads.

TPMS Warning Light: What It Means and What to Do

The tyre pressure warning light (TPMS) doesn't always mean a puncture. Here's how to read the situation, check pressures yourself, and reset the light.

Temperature Warning Light: Never Ignore This One

The engine temperature warning is one of the most serious dashboard lights. Here's what to do immediately, what causes it, and what it'll cost if you ignore it.

Battery Warning Light — It's Usually the Alternator

The red battery light doesn't mean the battery needs replacing. It means the charging system isn't working — here's why, and how long you have before the car stops.

Oil Warning Light: Stop Immediately

The oil pressure warning light is a stop-now emergency — not something to check at your next service. Here's why it matters and what to do.

Car Pulling to One Side? Start Here

A car that drifts or pulls left or right on a straight road is telling you something. Most causes are straightforward — here's how to work through them.

Brake Warning Light — Which One Is It?

There are actually two different brake warning lights, and they mean very different things. Here's how to tell them apart and what each one requires.

When self-help isn't enough

Still not sure
what's wrong?

If a warning light is on, something isn't clearing, or you just want a professional read on what the car's computer actually knows — PAD comes to you. Full OBD diagnostic scan from £25, across Pontypridd and RCT.

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