SCR systems are required to meet Euro 6 emissions limits for NOx. They all use AdBlue which is injected into the SCR cat, which is downstream of the DPF.
Unless you do big mileages there is no good argument for a modern diesel, as the added complexity and usage requirements mean they actually have a shorter service life than a petrol vehicle now.
Don't be tempted to remove/fiddle with the exhaust aftertreatment systems - there are changes bound to come on the MOT which will make it much easier to detect removal.
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===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD===
2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus
2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC
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