Table 1 shows two common gasoline fuel system related problems of the 1997 BMW 740.
| Problem Category | Number of Problems |
|---|---|
| Tank Filler Pipe And Cap problems | |
| Tank Assembly problems |
Hi, I am not sure if this is a safety defect or not. I had a sound like an expanding and contracting of metal in the back underneath of car. It sounded like a cookie sheet when it is first heating up in the oven and it expands and contracts. The dealer couldn't find anything when I brought it in but said that they were going to call BMW technical support because they had a theory that a spider was clogging up the fuel line and that this had happened once before to their knowledge and resulted in the gas tank collapsing. I brought car in again and they said they removed a spider and put in a new pipe/line. The sound I had heard before was gone. Some people have told me, however, that the whole system is a closed system and that this couldn't have happened. Is it possible? is problem fixed?.
There seems to be a common defect in the '1995-'01 BMW 740 series gas tank. There is a problem that occurs that creates a vaccum in the tank which then makes the tank implode. It just crush in upon itself until it pops or a seam breaks somewhere. This happened to me yesterday while I was driving to work and had 17 gallons of gas spewing from underneath the car. I didn't notice it until I was in my parking garage which is in a 49 story building. The jersey city fire department came then brought in their hazmat team. They recovered/cleaned up maybe 7 gallons while in the garage so about 10 gallons spilled while I was driving. Needless to say this was an extremely dangerous situation that could have been prevented if BMW had recalled the car on this item. . Read more...