One thing in advance: Before you hit me directly, four-part and verbally bump into the TÜV pit – YES, I’ve already searched the forum extensively for information, but unfortunately didn’t come to a green branch for my woe, so here’s a new Fred: Vehicle data: Renault Megane 1.5 dci (unfortunately with DPF) 2008 76 KW / 104 HP 230,000 km After about 1-5 km of drive the power suddenly decreases significantly and the speed is limited to about 2800, looks hard after emergency run. My previous ventures: – Error memory speaks of “fuel system” – diesel filter replaced – AGR valve cleaned (was moderately rusted) – throttle valve cleaned and tested for function (kaum soot, works normally according to OBD) – DPF can be tested with Bosch ESI[tronic] : – differential pressure: 7 mbar – Russian load: 10 g This sounds uncritical at first impression, but the following values make me stutzig: – km since last regeneration: 90,000 (!) I have the car myself about 30,000 Since time immemorial the display “Control injection” (no engine control light!) came with almost every start, which can be pushed away with a short click. My (free) workshop of the vet trust suspects on DPF, but also does not want to exclude that other factors drive their mess. With ESI[tronic] was otherwise not to be found any significant error in the fuel system. (The Renault workshop on site uses the same system). If someone has an idea like one d he could get on the trick without slaughtering at least half a thousand? (DPF renew incl. all PiPaPo…) Thank you for your opinions in advance ! Have a nice (control light-free) Sunday 😉 Andreas