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: Slight delay when stepping on accelerator pedal

Hello. This delay is common in what is known as drive by wire engines. This means that the throttle is controlled by sensors and an electric motor. Most of the time when there is a delay that is this serious,...

Q: My car won't rev or accelerate

Hello there. If you press down on your accelerator pedal and the engine will not rev at all, this is typically the indication of a damaged throttle linkage or throttle body component. On an older Mercedes-Benz, the throttle is not...

Q: E92 oil filter gasket

If the oil filter gasket does not properly seal, this may result in oil leaking out. Depending on the severity of this and how quickly it leaks, this may result in the motor running dangerously low on oil which can...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...