Q: Gas smell when car turned off. No leaks or anything 2010 BMW 328i

asked by on

My car smells like gas when it's turned off. No leaks or anything
My car has an automatic transmission.

It sounds like you may have a leak in the fuel tank ventilation system that may be causing the fumes to escape from the fuel tank. This can happen when the venting tubes in the fuel tank are leaking or when something called a purge valve is leaking. This is likely related to your EVAP emissions system and something called a purge valve solenoid. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere. The EVAP system collects and temporarily stores the fuel vapors in the charcoal canister. The charcoal canister is filled with activated carbon pellets that can absorb the fuel vapors. When the engine is running, the fuel vapors are purged from the canister and burned in the engine. The vent control valve (solenoid) controls the flow of outside air in and out of the charcoal canister. When this is not working properly, you may experience the gas pump shutting off prematurely causing it to take a very long time to fill up your fuel tank. This is due to the excess fuel vapor that is present when the purge solenoid is not working properly by releasing these vapors. The gas pumps at the fuel station have automatic sensors on them (for safety reasons) that shut off automatically when too much fuel vapor is present. I would recommend having an expert from Your Mechanic come to your home to take a look at your car to diagnose your EVAP purge solenoid.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Gas smell when car turned off. No leaks or anything 2010 BMW 328i

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My BMW starts, then immediately stalls

The first thing I would look for is air leaks. Your car uses an air flow meter to measure all the air going into the engine. The controller uses this information to decide how much fuel to inject. If there...

Q: My car won't start after being parked - 2009 BMW 328i

Hello there. A few common faults will cause your 2009 BMW 328i to not start after it is parked. You have done great in having the battery, starter, and the alternator checked as those will cause these symptoms. Other possible...

Q: Buying used BMW 2009

Nothing adverse appears on the Carfax report. There don't appear to be any outstanding recalls. Inasmuch as used car repair, maintenance, and restoration costs are highly dependent on the actual, as found, condition of the vehicle, the only way to...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.