12/10/2026
⚠️⚠️⚠️ Do you carry out short journeys from A to B in your Diesel vehicle?
This is a problem we see over and over on Diesel vehicles.
❌ A job we carried out last week - Blocked up DPF and Turbo.
How a Blocked DPF Destroys Your Turbo?
A blocked Diesel Particulate Filter (DPF) can take the turbo down with it.
They are directly connected in your exhaust system, and when one suffers, the other dies.
Here is the quick breakdown of what can happen:
1. The DPF Chokes Up
The DPF’s job is to trap soot. To clean itself, it needs long, hot motorway drives to burn that soot away. If your vehicle only does short, stop-and-start city trips, the self-cleaning cycle never happens. Soot piles up, and the filter blocks.
2. Exhaust Pressure Backs Up
With the DPF blocked, exhaust gases have nowhere to go. Massive pressure and extreme heat (up to 700°C!) build up right behind the turbocharger.
3. The Turbo Gets Cooked
That intense back-pressure forces hot gases and soot straight past the turbo's internal oil seals. It cooks the oil inside the turbo, starving the bearings of lubrication. Within a short time, the turbo bearings seize up or the turbine wheel snaps (like in the photo below).
💡 THE GOLDEN RULE:
If a diesel van or car doesn't regularly get driven on long journeys, a petrol vehicle is almost always the better, cheaper option.
