Car Maintenance

A box of coated honeycomb in your exhaust that turns three harmful gases into three harmless ones. What it is, why it needs heat, why it almost never fails on its own, and what the MOT checks.

Nearly every Ford Puma runs a timing belt inside the engine, in the oil. Which engines have one, when it is really due, the symptoms worth acting on, and what a proper replacement has to include.

Ignition & Electrics7 min readFree diagnostic check Spark plug replacement cost in the UK typically runs £55 to £125 for

Land Rover timing chain replacement on the 2.0 Ingenium diesel, photographed in our own workshop. Why the chain sits at the rear of the engine, what makes it wear, and what a correct repair involves.

Air-Con Guide 6 min readOlder carsR134aFitted to most cars up to ~2017Global-warming potential: 1,430VSNewer carsR1234yfMandatory on all new cars from

Brake fade explained: why your brakes go soft on a long hill, the two types, and how to prevent it with engine braking and fresh fluid. Fastlane, St Helens.

What’s that whining noise from your car? Diagnose it by whether it rises with revs, road speed or steering. Wheel bearing, power steering and more. Fastlane, St Helens.

Exhaust & Emissions6 min readThat drone is a warning 4.9/5from 900+ genuine Google reviews You pull off the drive and

Diagnostics6 min readThat morning screech isn’t in your head 4.9/5from 900+ genuine Google reviews You turn the key on a