DPF Regen Failures? Honda CR-V Ad-Blue Guide

Had the same issue with my 2011 Honda Accord i-DTEC diesel at around 95,000 km. The symptoms were identical, check engine light, DPF warnings, and Ad-Blue system pressure problems. Took it to the garage last month. Turned out the Ad-Blue tank had a hairline crack and the pump wasn't working properly. The mechanic found crystallized Ad-Blue residue around the tank connections, which was blocking proper flow. They had to replace the tank and pump assembly, plus clean the entire system. It was a serious job because contaminated Ad-Blue can damage the SCR catalyst. The repair wasn't just about fixing the tank, they had to flush the lines and check the injector too. My car runs much better now, no more warnings. Tip: Look for a garage that specializes in diesel engines and emissions systems. They'll have the right diagnostic tools and experience with Ad-Blue systems.

Thanks so much for sharing your experience! It's really helpful to know I'm not alone with this issue. My symptoms match yours exactly. Did you remember roughly how much the whole repair ended up costing you? Also curious if you've had any other Ad-Blue related problems pop up since getting it fixed? I've got a 2009 CR-V and really want to avoid any damage to the catalyst, so it's good to know about checking the lines and injector too. I'll definitely look for a diesel specialist.

Hey there! Yes, happy to share, I actually just got this fixed about two weeks ago and I'm so relieved it's sorted now. The total bill came to 1620€ including parts and labor. Pretty steep, but honestly worth every penny because the car's running like a dream now. The Ad-Blue system pressure is perfect since the repair, no more warning lights or any issues at all. The mechanic did a thorough job replacing the defective tank and cleaning everything out. They explained that catching it when we did probably prevented more expensive damage to the catalyst system. Haven't had a single problem since the fix. The engine's running smoother, and those annoying DPF warnings are completely gone. If your symptoms are matching what I experienced, I'd definitely recommend getting it checked sooner rather than later. Just make sure you find someone who really knows their way around diesel emissions systems, it makes all the difference! Let me know if you need any other details about the repair. Always happy to help a fellow Honda owner avoid the headaches I went through!

Just wanted to update everyone, got my CR-V fixed today and wow, what a relief! After hearing about your experience, I took your advice and found a diesel specialist mechanic. You were spot on about everything, turned out I had almost the exact same problem with the Ad-Blue system. The final bill was a bit painful, but honestly, the car's running better than it has in months. No more warning lights, no more DPF messages, and the engine's so much smoother. The mechanic was really thorough, checked everything you mentioned, the tank, lines, and injector. They even found some crystallized Ad-Blue that needed cleaning out. Thanks again for all your help! Really saved me from potentially bigger problems down the road. Think I've finally found a mechanic I can trust too, they really knew their stuff with these diesel systems. What a relief to have this sorted!