Fuel System problems
Fuel System: System that provides fuel to the engine. It is formed by a fuel pump, pipes and injectors or a carburetor in older cars.
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What is the fuel octane rating?
How to improve the fuel consumption of your 3 Series
Which type of fuel should you use in your 3 Series?
What are biofuels?
What types of fuel exist?
More specific problems:
Related problems:
See owner's manual
Top problems
No power, no life, dead car 
Solved
BMW 3 Series 2008 Coupe 1400000 miles
In short, my BMW 320i ocassionally just decides that it's dead. The battery was changed, power is running to the ECU, all is good.
Story time: First time, my car just died when I got out of my driveway, the key (start/stop) didn't react to anything, the car died while driving, almost like someone rear-ended me, key got stuck in the slot, no power at all, lights, dash, any buttons didn't have power (previously it started just perfectly). After a locking the car with the key from the keyfob manually, the car was sitting for 2 days, went back and upon unlocking, all lights turned on and the car… Read complete
CommentWon’t turn on
BMW 3 Series 2005 Zhp convertible 132 miles
Not getting fuel to the motor I change the fuel pump ,fuel filter pressure, spark plug and I check the fuses and they are good still what should I do next
5 reports
We're you able to identify the issue? Im having a similar issue and can't, for the life of me, figure it out
a friend of mine had the same problem, in his car the relay was faulty. it clicked but did not activate the pump. new relay solved the problem. in his car the glove box had to be removed and it was the second green relay above the white GM (general module) box
Alex junior Br from other 2 years ago
It worked for my! E90 Fuel pump relay change
CommentEvap System doesn't work
BMW 3 Series 1996 Sedan 160000 miles
In winter time my fuel tank doesnt have air and it sucks the fuel tank, but in summer its too much air vapors and sometimes car doesnt work correctly. And my fuel indicator on dashboard doesn't show right, if I make a full my indicator shows sometimes on red line and sometimes more than full, if I have half sometimes show right sometimes it rise or goes down
1 reply
Mohamed Nagi from United Arab Emirates 3 months ago
I have the same problem with the engine light coming on. Has the problem been solved?
CommentNo starting
BMW 3 Series 2012 Sedan 350000 miles
After heavy rain the car I noticed the fuel needle is not moving when switched on and when pressing start button it is cranking but not starting. After testing all fuses there are 2 fuses 30A having no power at all and the fuel tank is not whining when car is on
Crank no start
BMW 3 Series 2007 E92 335i 88230 miles
Bmw e92 335i 2007 Crank but no start!!. I've changed the fuel pump controller, dme relay and maf sensor!. Any ideas?
3 reports
No power to the EKP
BMW 3 Series 2009 335i 120000 miles
I have no power coming to the EKP module. I have disconnected the power cable to the EKP module, and there is no power coming to the cable as well. Fuse seems to be Okay, unless I am looking to the wrong fuse. Car runs, but it starts stalling after while. LPFP/EKP is weak, reading about 3 bars,. HPFP is correct. Any ideas?
1 report
Fuel pump not working
BMW 3 Series 2006 316i 270000 miles
The fuel pump does not work, and when an external power source is connected, it works. After the car starts, I disconnect the power source and the car continues to run, noting that all the fuses are intact.
3 reports
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