Emissions system modifications and solutions
AdBlue (DEF) issues are becoming increasingly common on newer BMW diesels. Here's a troubleshooting guide. How AdBlue works AdBlue is a urea-based fluid injected into the exhaust…
2 months ago
EGR (Exhaust Gas Recirculation) is one of the most problematic systems on BMW diesel engines. Here's everything you need to know. What does the EGR do? The EGR valve recirculates…
2 months ago
The AdBlue system on my G30 530d is giving me constant warnings. The tank heater failed and BMW wants 1800 EUR to fix it. Thinking about doing an AdBlue delete with ECU remap…
2 months ago
My mechanic recommended a DPF cleaning service instead of replacement. They remove the DPF, clean it with chemicals, and reinstall it. Cost is 350 EUR vs 2500 EUR for a new DPF…
2 months ago
Heard that the swirl flaps on M57 engines can break and get sucked into the engine, causing catastrophic damage. Is a swirl flap delete necessary or is this overblown? My E60…
2 months ago
After doing DPF deletes on multiple BMWs, I wanted to write a comprehensive guide on the pros and cons. What is a DPF? The Diesel Particulate Filter captures soot particles from…
3 months ago
My N47 EGR valve is clogged again (3rd time in 2 years). Should I just keep cleaning it or do a proper EGR delete? Cleaning costs 200 EUR each time and the problem keeps coming…
Just did a DPF delete on my F30 320d B47. Heres what was involved: Physical DPF removal (replaced with straight pipe) ECU remap to disable DPF regeneration EGR software disable…
5 months ago
My F10 520d keeps showing DPF warning light. The car tries to regen but never completes it. I think the DPF is too clogged. Dealer wants 3500 EUR for a new DPF. Is there a way to…
