Hello for help, I drive a 407 SW 2.2 170 Biturbo, year 06.2007, and have already the second time the problem that my consumption after changing from winter tires (originally bought from Peugeot, 215/17 on aluminium without tire pressure sensor; not available) on summer tires original Peugeot with tire pressure sensor, the consumption suddenly goes from approx. 8l/100Km in winter mixed operation to 12l/100Km. The consumption indicator also goes during sliding operation, when push off not below 3.5 L/100 un d with normal acceleration I have fast times 20 – 22 L on the display. Furthermore, when rolling in column traffic increases at approx. 50 – 60 km/h in the 4.od.5. gear without that I give gas the display also always from approx. 5.1 L up to 12 L. There it stays then and I can follow on the tank clock as the fuel becomes less. The problem by the way only occurs with operating warm engine. As soon as I come over about 70° water temperature I notice for approx. 1 minute an unround motor run in the Stan d or a “swallowing” of the engine when I’m accelerating. Then everything is OK again, except for the consumption, which increases by 50%. At the idle speed of approx. 850-1000 rpm, depending on whether AC OFF/ON does not change anything. Last time I was in the workshop, however, they could not find anything and did not make a software update for safety reasons. So the problem was also solved. However, it can’t be that after every winter exchange on summer tyres and d amit activation of tire pressure control, need a SW update. Can anyone help me here the ev. also had the same problem? I am grateful for any serious advice. LG, JoeCool68