DPF and Ad-Blue Issues: Outlander Warning Signs

Hey there! I've had some experience with diesel engines and faced something very similar with my 2017 Mitsubishi ASX Diesel last year. The symptoms were exactly the same as yours. Turned out my Ad-Blue tank was defective, sensors were shot and the whole tank needed replacement. Took it to my regular workshop (I've been going to them for years), and while it wasn't cheap (cost me around 1620€ including parts and labor), it fixed the issue completely. Before you head to the shop, could you share: How many miles/km on your Outlander? Have you recently refilled the Ad-Blue? Any other warning messages? Might help me give you more specific advice based on my experience.

Thanks for sharing your experience. I'm currently at 74,081 KM and had my last service about two months ago. Actually, I haven't refilled the Ad-Blue since then. Other than those warnings I mentioned, everything else seems normal, no unusual sounds or performance issues. Really appreciate your input about the tank sensors, that's definitely something I'll have checked out when I take it to the shop.

Hey again! Thanks for the additional info about your Outlander. Yeah, looking at your mileage and what you've shared, it's sounding even more similar to what I went through with my ASX. When my issue happened, I was at around 68,000 KM, so pretty close to where you are now. Just thinking, since you haven't refilled the Ad-Blue since your last service, you might want to check the Ad-Blue level first. On my ASX, I learned (the hard way!) that even though the tank wasn't empty, the sensors could still act up if the level got too low. The gauge isn't always super accurate either. Quick tip from my experience, before you head to the workshop, maybe grab a bottle of Ad-Blue from the gas station and top it up? That's actually the first thing my mechanic asked me to try when I called him about my issue. It didn't solve my sensor problem in the end, but it's worth a shot and way cheaper than a workshop visit if that turns out to be all it needs. Let me know how you get on, I'm curious if it's the same issue I had with the sensors or just a low fluid level. Keep us posted! Cheers, Mike

Thanks again. That's really helpful advice. I'll definitely try topping up the Ad-Blue first before heading to the workshop, can't believe I didn't think of that! Just picked up a bottle on my way home and will fill it up tomorrow morning. You're right, it's worth trying the simple solutions first before possibly spending big money on repairs. Really appreciate you sharing your experience and the tip about the sensors potentially acting up with low fluid levels. I'll update this thread once I've tried the Ad-Blue refill and know more about what's going on. Here's hoping it's just a low fluid issue and not the sensor problem you faced! Cheers and thanks again for all your help!