Mercedes Vito 1.6 P246B09 & P246392 скачать в хорошем качестве

Mercedes Vito 1.6 P246B09 & P246392

For repair bookings email orileysautos@gmail.com www.orileysautos.com Mercedes Vito 1.6: Diagnosing and Fixing DPF Issues When it comes to the Mercedes Vito 1.6 Dci engine, engine management lights can be a pain to deal with—especially when they’re related to the Diesel Particulate Filter (DPF). In this post, we’ll walk through diagnosing and fixing DPF regeneration problems, including common fault codes like P246B09 and P2463-92, to help you get back on the road. Detecting the Initial Problem This Mercedes Vito had its engine management light on, signaling a problem with the DPF. The owner had already had someone try to address it, but they weren’t successful. That’s where diagnostics comes in. We used a diagnostic machine to check the vehicle for specific fault codes. The two critical codes we found were: P246B-09: "Component fault, diesel particulate filter regeneration not fulfilled." P2463-92: "The soot content of the particulate filter is too high." These codes told us right away that the DPF regeneration wasn’t happening as it should, or the filter was simply too clogged to operate correctly. Looking at the Data: Soot, Pressure, and Regeneration Issues The live data revealed quite a bit. The soot content of the DPF was around 62 grams, and the differential pressure was 30 millibars. Ideally, for a healthy DPF, the differential pressure should be closer to 6 millibars. In simpler terms, the soot buildup in the filter was causing too much back pressure, making effective regeneration nearly impossible. A deeper dive into the data showed us something interesting: the vehicle wasn’t being driven long enough during regeneration attempts. The regeneration process requires enough continuous driving for the engine to heat up and burn off the accumulated soot. If the engine is switched off too early, the process stops mid-way, and the soot builds up, which is exactly what was happening here. For example, the distance between regenerations for this Vito was about 75 kilometers—far too short for proper cleaning cycles. The engine was being switched off before any full regeneration could happen, making the DPF situation worse. Engine and DPF Inspection This particular Mercedes Vito houses the Renault 1.6 engine, which is a bit of a surprise for some owners. Despite buying a German-brand vehicle, the engine design is still Renault-based. And it comes with its typical problems. We suspected issues with the upstream pressure sensor, a common culprit in DPF-related issues for vehicles with this engine. If this sensor is blocked, it prevents accurate readings of the system's pressure, thereby affecting DPF performance. Upon inspection, the exhaust tip wasn’t looking too bad. However, the pressure sensor needed cleaning, and the overall soot buildup suggested the DPF was nearing the end of its life unless we intervened. Cleaning the DPF: A Step-by-Step Breakdown For stubborn soot blockages like this, you will usually need to manually clean the DPF. Here’s how we tackled it: 1. Unblocking the Pressure Sensor: We removed the pressure sensor, cleaned it manually, and confirmed it was reading correctly. If the sensor can't get proper pressure readings, the entire DPF system struggles to function. 2. Applying Cleaning Fluid: We utilized DPF cleaning fluid from LA UK, feeding it through the system via a spray bottle and connected hose. It’s crucial to let the fluid sit within the DPF for at least five minutes to loosen the soot buildup effectively. Once we applied pressure and let the cleaning agent work, we drilled through the blockage using guitar wire attached to a drill. 3. Re-testing Pressure: After using up a lot of cleaning fluid and persistence, we managed to clear the blockage. Reconnecting the sensors and running a pressure test confirmed that the DPF now had normal pressure levels. No more blockage, no more back pressure! Stubborn Fault Codes Cleared After the cleaning process, we revved the engine up to 3,000 RPM and watched the differential pressure drop significantly back into a healthy range. The pressure dropped from 30 millibars to around 6 millibars, which is what we want to see for a well-functioning DPF. Finally, we drove the vehicle around the block and monitored the soot level and pressure values live. The soot content dropped to 8.4 grams, and on further testing, it lowered to around 4 grams. Perfect! We cleared all the fault codes, confirming that no codes returned, meaning the system was now operating properly. Conclusion: Don’t Ignore DPF Issues When dealing with DPF-related problems, timely diagnosis and proper driving habits are critical to avoid bigger, more expensive repairs. As we saw with this Mercedes Vito 1.6, failing to complete DPF regeneration cycles can quickly lead to serious issues. If you see fault codes like P246B09 or P2463-92, it’s time to address the problem before things get out of hand.