UK Road Changes 2025–2026: What Your Sat Nav Might Be Missing
Major UK road changes in 2025 and 2026 mean older sat nav maps are already out of date. Here’s what’s new on UK roads — and why your navigation SD card may need updating.
What Is an SD Card Speed Class and Does It Matter for Navigation?
SD cards come with speed class ratings — Class 2, 4, 6, 10, UHS-I and more. Does the speed class matter for car navigation? Here’s what you actually need to know.
How Long Do Navigation SD Cards Last? When to Replace and When to Update
Navigation SD cards don’t wear out quickly — but the map data on them becomes outdated. Here’s what actually limits the lifespan of a nav card and when you should replace it.
Renault and Dacia Navigation SD Card Guide: R-Link, MediaNav and Easy Link
Renault and Dacia use R-Link, MediaNav and Easy Link navigation systems. This guide explains which system your vehicle has and how to update the navigation SD card.
Peugeot and Citroën Navigation SD Card Guide: RT6, SMEG and NAC Systems
Peugeot and Citroën share navigation platforms across their model ranges. This guide identifies RT6, SMEG and NAC — and how to find the correct map SD card for your vehicle.
Navigation SD Card Not Working? 7 Common Problems and How to Fix Them
Is your navigation SD card not being recognised, showing an error, or refusing to update? Here are 7 common causes and step-by-step fixes for the most frequent nav SD card problems.
How to Check Your Car’s Current Navigation Map Version (Any Brand)
Not sure which map version your car’s sat nav is running? This guide shows you how to find your current map version on any major brand — Ford, BMW, Mercedes, VW, Toyota, and more.
Toyota Navigation SD Card Guide: Touch & Go, Touch 2 and Entune Systems
Toyota’s built-in navigation uses SD cards across Touch & Go, Touch 2 and Entune systems. This guide explains how to identify your system and update your maps.
Mercedes-Benz Navigation SD Card Guide: Audio 20, NTG4, NTG5 and COMAND
Mercedes-Benz uses several different navigation systems across its model range. This guide identifies Audio 20, NTG4, NTG5 and COMAND — and how to get the right map SD card for each.
BMW Navigation SD Card Guide: NBT, EVO and CIC Systems Explained
BMW iDrive navigation uses different SD card formats depending on the system generation. This guide explains NBT, NBT EVO and CIC — and how to find the right map update for your BMW.