Car Repair Guides

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Technician connecting a battery tester to a hatchback parked on a frosty residential street in Cardiff

Car Battery Delivery and Fitting in Cardiff 2026: The £217.37 Average and the Cold Morning Decision Tree

The UK average battery replacement is 217.37 pounds. Before you buy one, here is how to tell whether the battery is actually the fault.

Technician guiding a gearbox onto a transmission jack under a hatchback on a two post ramp

Gearbox Service and Clutch Replacement in Cardiff 2026: How to Tell Which of the Two Jobs Your Car Needs

Crunching, slipping and a heavy pedal point at different parts. Here is how to tell which of the two jobs your car needs before you pay for either.

Technician lifting a dual mass flywheel off the back of an engine with the gearbox removed in a garage bay

Clutch and Flywheel Replacement in Cardiff 2026: What the Dual Mass Flywheel Adds to a £670.82 Job

UK averages put a clutch at 670.82 pounds and a clutch with a dual mass flywheel at 1,082.95 pounds. Here is how the flywheel decision is actually made.

Car instrument cluster at night with an amber engine warning symbol lit between the dials

Engine Management Light On: The Ten Most Common Causes and What Each Involves

What the engine management light means, whether you can drive with it on, the ten most common causes from coils to the DPF, and why a code reader is not a diagnosis.

Rear brake caliper with an electric parking brake actuator motor and a diagnostic scan tool connected

Electronic parking brake stuck in service mode: what to do

What EPB service mode is, why the brake gets stuck in it, what you can safely try yourself, and when it needs dealer level tooling.

Diesel pump nozzle in the filler neck of a car on a wet forecourt at dusk

Petrol in a diesel: the real damage when you start the engine

What petrol actually does inside a diesel engine, which parts fail and in what order, and why starting the engine is what turns a drain into a fuel system.

Cutaway diesel particulate filter showing soot blocked honeycomb channels beside a diagnostic tablet

Blocked DPF: What Causes It and What a Forced Regen Does

Why a DPF blocks, what a forced regen actually does, when the filter can still be cleaned, and what each step costs in Cardiff.

Mobile mechanic van parked on a Cardiff street with its side door open showing tools and a trolley jack

Mobile mechanic prices in Cardiff: rates, callouts and garages

What mobile mechanics charge in Cardiff, what a callout fee actually covers, and the jobs where a workshop comes out cheaper for the same work.

Clutch friction plate, pressure plate and dual mass flywheel laid out on a workshop bench in Cardiff

Clutch replacement cost in Cardiff: what changes the price

What a clutch replacement actually costs in Cardiff, and the five things that move the price on your car rather than someone else’s.

Stripped engine front showing a wet belt running in oil with delaminated teeth

Does my car have a wet belt? The affected engine list

Your car runs a wet belt only if the engine is on a short list. Here is that list by make, engine and year, how to find your engine code, and what to do if yours is affected.