NoTkn0wN je napisal/-a:Informativno vam podajam odgovor tržnega inšpektorata in sodnega cenilca:
Tržni inšpektorat me je usmeril na sodnega cenilca (kjer krijem stroške sam), kateri mi mora oceniti napako in podat mnenje, da je to res napaka. Ko sem klical sodnega cenilca ni bil niti presenečen, ker se srečuje tudi sam z istim problemom a ne more nic pomagat...njegovo mnenje - prodaj avto...Baje so na par avtošolah že prodajali avte z DPF filtrom ravno zaradi teh problemov. Thats it....edina varjanta odstranitev DPF-ja ali prodaja avta in nakup bencinarja...
Lp Primoz
Ni treba - če želiš dobrega dizla brez usranega DPF filtra ali scaline v tanku je rešitev v novem dizlu od Mazde:
On the diesel side, Mazda has pulled off an even more impressive feat. The 2.2-liter Sky-D (again, other sizes are likely to follow) boosts fuel economy by 20 percent over the current, 2.2-liter diesel and meets Euro 6 and U.S. Tier 2 Bin 5 emissions standards without using any NOx aftertreatment such as urea injection. You catch that? It meets U.S. emissions standards. That’s because Mazda is planning to bring this engine here sometime in 2012.
With the diesel, Mazda moved in the opposite direction, decreasing the compression ratio from 16.3:1 down to 14:1. That’s the same as the gas-burning Sky-G, and a value that’s the lowest in the world among diesels, according to Mazda. Doing so reduces cylinder pressures, and therefore temperatures, which reduces NOx production and also allows the fuel to mix better, avoiding locally rich areas that produce soot. Mazda claims that the lessened friction from the reduced cylinder pressure alone is worth a 4- to 5-percent gain in fuel economy. And the reduced internal forces also allow components such as the rods and pistons to be substantially lighter. Here, too, a forged steel crankshaft replaces a cast-iron unit. Overall weight savings is a whopping 55 pounds.
The downside to lowering the compression ratio of a diesel is that, during warm-up, the engine temperature can be too low to support proper combustion, and misfires result. To get around this, Mazda added a two-stage variable valve-lift system on the exhaust side in order to be able to create additional valve overlap. This causes the hot exhaust gases to be drawn back into the next cylinder to warm it up.
2000 Hyundai Coupe 2.0 → 2003 Hyundai Coupe 2.0 → 1999 BMW 740i → 2009 BMW 530d M
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