Two problems related to fuel pump have been reported for the 2007 BMW 530. The most recently reported issues are listed below.
When refeuling on low fuel in temperatures below 15 deg f the tank seals fail and leak or emit fuel vapors after filling tank between half way and full. This has occurred and been in for service 5 times on the same mode of failure although 1 was in warmer temperatures. The entire tank was replaced the first time, 2nd time the fuel pump, 3rd time no issue found (higher temp), 4th time 2 seals replaced, 5th time one seal replaced. Given the mode of failure strongly suspect a pressure equalization problem is occuring with warmer 40-50 deg f fuel entering the colder tank causing subsequent seal failures.
2008 BMW 535xi diagnosed with defective fuel pump. Engine malfunctioned and power reduced to half during operation. ** please note: actual vehicle is a 2008 535xi sports wagon the vehicle section does not have actual selection available.
| Tank Assembly problems | |
| Fuel Pump problems |