Fuel leak around driver side rear wheel

Tiny
AMANDAGREENWAY
  • MEMBER
  • 2008 BMW 328
  • 6 CYL
  • AUTOMATIC
  • 134,467 MILES
Filled up on gas, drove about 10 miles then parked for the day. Later in the afternoon noticed gas smell then noticed leaking under the car.
Thursday, May 7th, 2020 AT 10:11 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Clearly this is something that we need to address immediately. Is this leak on the side of the filler neck (where you fill the car)? If so, did you overfill the tank by any chance?

If not, then we need to turn the key to the on position, not the start position. We don't want the car to turn on but we do want the fuel pump to pressurize the system. Then we need to start looking under the car for the general area leak is coming from. Repeat this until you narrow down the leak and find the cause. Most likely this is a fuel line that is cracked or broken but we don't want to drive the car until we find it and repair it or have it repaired.

Clearly we want to be careful when we are doing this as we don't want to look directly under where the fuel is dripping. You will most likely have to jack up the car in order to get a better angle to see where it is coming from.

Let me know what questions you have. Thanks
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Thursday, May 7th, 2020 AT 1:18 PM

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