Warning Lights & Diagnostics

A BMW B38 coolant leak almost never leaves a puddle. Where the 1.5-litre three-cylinder actually leaks, why it stays invisible, and how it is found and repaired properly.

Mercedes 5 min readMercedes ElectricalMercedes ECU Coding, Repair & Replacement ExplainedThe ECU (Engine Control Unit) is the brain of your

Vauxhall 6 min readVauxhall EngineOil down at the sump. How dark and how little comes out tells us a lot

Jaguar 6 min readJaguar DiagnosticsAdBlue and DPF faults read on the tool rather than guessed from the dash message.Jaguar AdBlue

BMW 5 min readBMW ElectricalBMW Battery Warning Light: What It Means & What To DoThat red battery warning light on

Volvo 6 min readVolvo DiagnosticsVolvo EGR Valve Problems: Symptoms, Causes & RepairA faulty Volvo EGR valve is one of the

Emissions & Diagnostics8 min readThe pricey sensor that drops your car into limp mode 4.9/5from 900+ genuine Google reviews A

Diesel & Dashboard6 min readDiesel drivers, read this 4.9/5from 900+ genuine Google reviews You turn the key on a cold

A rotten-egg or sulphur smell from your car usually points to the catalytic converter. What it means, if it’s safe to drive and what to do. Fastlane, St Helens.

Why does your car jerk or hesitate when you accelerate? The common petrol and diesel causes, is it safe to drive, and the fix. Diagnostics at Fastlane, St Helens.