Bmw 2009 5 Series Exhaust Smells Like Gas

The major cause of the odor is mold and mildew that take up residence in the system and live on the moisture that any AC system condenses out of the air. But it could also be oil fumes from the cabin getting into the intake ducts they are tricky to get properly sealed.

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There are four main component failures that can result in.

Bmw 2009 5 series exhaust smells like gas. Many E39 have leaky gaskets at the valve covers whith lets oil get onto the exhaust manifolds and that smeel gets into the cabin. This can easily be fixed by having your engine properly tuned. Although can only smell when Im outside the car but its very irritating and choking.

Yesterday I bought a 2009 Mercedes CLS 550. 1 Use BMW fuel system cleaner every 5-10000 miles. It could mean bad 02 sensors or converters.

So if your exhaust smells like raw fuel its possible the catalytic converter is not working properly and as the exhaust exits the tailpipe its being drawn back into the passengers compartment. You cant smell it from the front of the vehicle unless the wind is blowing that way. A gas leak is usually indicated by the smell of gas.

They usually last a long time I still have the original on my 97 540 with 82k miles. That is an empty vehicle with just me in it. 2 Change your oil every 7500 miles or less and change it with good quality oil.

Any exhaust shop can check the system for leaks. You could smell gas in the car and see puddles of gas when they. One of the most obvious signs of an exhaust leak is a loud rumbling noise coming from your exhaust something like the type of modification that street racers pay a fortune to add to their vehicles.

I can add that I am also only getting 98mpg average for city and highway. And the major reason that especially the cars with the IHKA system are so prone to such odors is that the driver cannot always force the system to use fresh outside air IF the AC compressor is on. The cars fuel system was leakingthe gas was not properly going to the engine and it was flowing back into the car and the exhaust.

4 Mar 12 2009. A gas leak indicates that your BMW will need a repair in either the fuel tank or injector line or even both. If you smell fuel you should bring in your BMW to us immediately because a gas leak can result into a possible fire.

If your vehicle has completely warmed up particularly the catalytic converters and you are still smelling fuel thats not good. I have a 2009 X-5 and smell gas while driving recently. If theres a problem with overfuelling there will be more exhaust gases than the component can deal with which is.

If you dont smell fuel with the windows up and the. In transmission fluid case the engine is sucking the fluid through a vacuum hose which leads to the color white from smoke. Aug 4 2012.

No noticeable leaking and the smell just seems to come from the gas cap area. Please advise as to what could be causing the infrequent gas smell while driving. You might notice that you need to fill your tank more often.

When your engine idles rough and the exhaust has the smell of raw unburned gasoline it is suffering from a rich condition or or incomplete combustion. Its particularly bad right after I fill her up. Joined Oct 20 2014.

I drove 15 miles then put 15 gallons of gas in it. Usually there is rattling noise inside them loose pieces of junkmetal. When you are by the exhaust it is really bad.

It can stink up the whole garage. My 14 RT smells like gasoline most of the time lately. Currently using mixture of SPC 95 98.

Gas smell truly seems to be contained to the exhaust. Gas Smell from Exhaust. Hi Bros Im driving a E90 LCI 320i and I noticed that my exhaust has very strong ammonia smell which is dam smelly.

You also may not be using the correct brand of gasoline. In addition to the possibility of fuel pump failure leaking gas near an ignition source isnt good for anyone. Sometimes you may find that the exhaust smells like gas.

The job of this device is to convert exhaust pollutants into more or less clean air and the process can produce a sulphurous smell from time to time. Even though this will not wash over the valves it will help by preventing your injectors from becoming fouled. In June 2011 BMW started hearing customer complaints involving gas odors from the.

If the white smoke is coolant your car is definitely having a crack in the cylinder head or a. The exhaust will also have a burned oil smell. Discussion Starter 1 Jul 20 2017.

If youre smelling fuel at the rear of the car when it is running you may be smelling un-burned fuel coming out your exhaust. This is normally a problem with the air and fuel mixture as your fuel injector may be sending too much gas through the engine and not all is burning. I dropped the vehicle off at the BMW dealership and they have not been able to duplicate the event.

Other signs of an exhaust leak include a vibrating gas pedal and less fuel efficiency. Use the search feature on this forum to read similar posts.

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