BM Cars Blog

BMW 5 driver’s question about the engine’s mounding with the DPF cut out

I have a problem with a BMW with a DPF cut out engine smelling. Unfortunately, this is the model I bought and for some time now it smokes terribly when firing up. However, only on a cold engine. My mechanic says it’s the fuel injectors, but I need to be sure because it’s quite a big expense. What could be the reasons for the car to smoke like this? Please advise.

The problem was on the BMW 5 F07 GT, but it may also occur on other models.

BMW 1 E87 driver’s question regarding DPF and “knock burning” sound

I have a problem that is recurring. During the DPF firing procedure, there is a loud engine noise, it is a “knock combustion” sound, so stated the mechanic to whom I presented it. The sound intensifies in the rev range of about 2000-2500.This occurs during load, when adding gas. On the other hand, it does not occur at a standstill. Engine temperature or ambient temperature does not matter.

BMW driver question

The problem is that when I get to an intersection and almost come to a stop, the car jerks when shifting to slow speed. I have never had such symptoms. In addition, during hard acceleration I have the impression that it also jerks. When I connected the diagnostic computer, it popped up the error “250900 fuel pressure sensor”. I replaced the short circuit to the pole and the sensor with a new one, butthe problem still occurs.

BMW driver question

Please advise. I bought a BMW 5 from a friend in Poland – the car originally from England. I took it to my local garage for repair. The car is not running. It turned out that the inverter was flooded with water, so we put on a used one. We also installed another battery after reconditioning. Now the car runs, but does not charge the battery. Please advise something, because the guys in the workshop have already lost their hair. Does the used inverter need to be programmed? Is there an option to code a used one?