Why is my DPF light on?
The five most common causes of a DPF warning, how each is diagnosed, and what each costs to fix.
Honest articles about diesel engines, what goes wrong, and what to do when it does. Written by working mechanics.
The five most common causes of a DPF warning, how each is diagnosed, and what each costs to fix.
Real prices for the 10 most common engines we work on, and why "belt only" is a false economy.
Cost, lifespan and decision-making — including a real case study.
Common faults, the countdown timer, and what to do before it hits zero.
Timing chain, swirl flaps, EGR cooler — the N47-specific issues we see weekly.
Practical benefits of combining service and MOT, plus what to look for.
Authoritative answer — and why a clean is usually the better option anyway.
Diagnostic guide by smoke colour — covers the most common causes.
Real prices, what affects them, and turbo "failures" that turn out to be something else.
Buyer's guide to picking a garage that won't rip you off.
Common faults, real costs, and what's worth fixing.
Make/model lookup, why it matters, and what to do if you're not sure.
Send us a message — if it's a question we get often, we'll write about it.