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Hello! SORRY FOR USING ENGLISH, my german is too bad. My car is 116i(n43,2l,122cp). The fuel consumption is huge. When I set in motion, the engine speed drops below 700 if i do not accelerate strongly.It lacks of power, it misfires at idle rarely, it misfires at 1500-2000rpm rarely. The car is a bmw premium selection bought from Germany, but the warranty isn't available in bucharest. Also when I bought the car, it had 2 errors, 1. thermostat activation and 2.nox sensor, the dealer told me they are normal, i insisted to change the nox sensor. The dealer(not a niederlassung) told me they did it, but they lied me.I checked the history of the car at bmw bucharest, they told me that in the online history there is no nox sensor change. After phoning to bmw deutschland and to the dealer, the dealer send me a thermostat and a nox sensor. 
After i changed the nox sensor, there was a new error: catalytic converter sulphurized. I haven't changed the thermostat, but in this moment, fuel consumption in city(bucharest) is about 18l. In the summer the engine temperature went to 110celsius and I decided to unplug the egr-control wire, then the temperature was under 103celsius. In this moment the egr doesn't operate. My lambda values are very high... about 2v, but i think there is another problem of injection and mixture. The car has 79.000km, the ignitions coils were changed. If anyone has an ideea... please give me an advice 
update: yesterday i saw that the bmw premium selection car HAS the fuel pump changed with a second hand pump, check picture nr.7








Bearbeitet von: cosmy am 17.12.2014 um 13:48:54

Bearbeitet von: cosmy am 17.12.2014 um 13:51:38