Smell of Gasoline in Garage C32 AMG
03-06-2010, 08:37 PM
#1
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c32 2002
Smell of Gasoline in Garage C32 AMG
I noticed strong gas odor in the garage. Took the car in for service to the dealer and they re-sealed a gasket. The smell was gone but only for about two weeks. The gas smell is back. Any idea what is going on? Thanks,
Andrew
Andrew
03-08-2010, 01:19 AM
#5
Another possibility is if you over fill your car at the gas station and you "top it off" can cause gasoline to go down the vent/overfill tube and go into the charcoal canister filter (designed to eliminate the gasoline fumes that are released from the tank) and if that becomes wet with gasoline you will get that very strong gas smell in the garage for a few days until it has time to dry out.
It will appear like the smell is coming from the front drivers side of the car.
Do you notice the smell more when the car is recently fully fueled?
It will appear like the smell is coming from the front drivers side of the car.
Do you notice the smell more when the car is recently fully fueled?
03-08-2010, 01:45 AM
#6
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Very good point... It is listed in the owners manual to never click the gas nozzle past the point of being full. However, with both my Mercedes I've experience problems with American fuel station pumps not wanted to fill without cutting off early. Back pressure, or whatever, I don't know... If the smell originates from the engine bay I suggest a very thorough inspection of fuel lines in this area...
Last edited by gt4awd; 03-08-2010 at 01:48 AM.
03-08-2010, 02:10 AM
#7
I had that happen to me once and through research I also found that overfilling can also cause fuel to go up from the tank into the charcoal canister line, or overflow the engine vent line as well.
It could be something else in the EVAP system, check out this post and look at the PDF's to see the fuel and evap system and check those various items as well.
https://mbworld.org/forums/c-class-w203/288735-check-engine-light-code-p0442-3.html"]https://mbworld.org/forums/c-class-w203/288735-check-engine-light-code-p0442-3.html"]https://mbworld.org/forums/c-class-w203/288735-check-engine-light-code-p0442-3.html
I had the strong smell from the front drivers side, but checked under hood but no smell, however there is some fuel line components that are within the front drivers side fender in the car. I tried also checking the gas filler area for the smell as well, but it was stronger in front of car.
Once I figured out my issue was a wet charcoal canister I only 3/4 filled the tank for 2 weeks and it dried out and the smell went away and now all is good on every fill up.
It could be something else in the EVAP system, check out this post and look at the PDF's to see the fuel and evap system and check those various items as well.
https://mbworld.org/forums/c-class-w203/288735-check-engine-light-code-p0442-3.html"]https://mbworld.org/forums/c-class-w203/288735-check-engine-light-code-p0442-3.html"]https://mbworld.org/forums/c-class-w203/288735-check-engine-light-code-p0442-3.html
I had the strong smell from the front drivers side, but checked under hood but no smell, however there is some fuel line components that are within the front drivers side fender in the car. I tried also checking the gas filler area for the smell as well, but it was stronger in front of car.
Once I figured out my issue was a wet charcoal canister I only 3/4 filled the tank for 2 weeks and it dried out and the smell went away and now all is good on every fill up.
Last edited by ruben65; 03-08-2010 at 02:13 AM.
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09-25-2014, 12:01 AM
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E63 SL55 996TT C5Z06
i had what sounds like a similar problem. heavy fuel smell odor coming from behind the supercharger along the engine bay firewall....
turns out it was a fuel pressure damper which is somewhere by the fuel rail as I understand it.
my shop guy outside of chicago fixed it for about 150 by replacing the fuel dampner and did a nice job.
it took me 6 months and wasting time at 2 stealerships to figure that out, but you should ask about your fuel pressure damper.
turns out it was a fuel pressure damper which is somewhere by the fuel rail as I understand it.
my shop guy outside of chicago fixed it for about 150 by replacing the fuel dampner and did a nice job.
it took me 6 months and wasting time at 2 stealerships to figure that out, but you should ask about your fuel pressure damper.
09-25-2014, 02:32 PM
#10
i had what sounds like a similar problem. heavy fuel smell odor coming from behind the supercharger along the engine bay firewall....
turns out it was a fuel pressure damper which is somewhere by the fuel rail as I understand it.
my shop guy outside of chicago fixed it for about 150 by replacing the fuel dampner and did a nice job.
it took me 6 months and wasting time at 2 stealerships to figure that out, but you should ask about your fuel pressure damper.
turns out it was a fuel pressure damper which is somewhere by the fuel rail as I understand it.
my shop guy outside of chicago fixed it for about 150 by replacing the fuel dampner and did a nice job.
it took me 6 months and wasting time at 2 stealerships to figure that out, but you should ask about your fuel pressure damper.
Never heard of a fuel pressure dampner....you have location and pictures?
09-26-2014, 09:17 PM
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E63 SL55 996TT C5Z06
I think the pic Lenin posted is the fuel damper, but i never actually saw mine when it was repaired.
the only symptom i experienced was fuel odor. no power issues or anything else.
what was odd and coincidental is that my secondary actually failed at the same time and was rattling like crazy. that made it confusing to sort out if the fuel smell was related to the bad cat or something else. the guys at speedriven in chicago figured it out immediately and it was like $150 to fix (not too expensive part and 1 hour labor).
the only symptom i experienced was fuel odor. no power issues or anything else.
what was odd and coincidental is that my secondary actually failed at the same time and was rattling like crazy. that made it confusing to sort out if the fuel smell was related to the bad cat or something else. the guys at speedriven in chicago figured it out immediately and it was like $150 to fix (not too expensive part and 1 hour labor).
12-15-2015, 12:08 AM
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C32
Fuel Damper
Hey jvakos where did you get the fuel damper? I think mine went bad. Is yours still good after you got it replaced? I just had a ecu tune a pulley and a TCU tune done wonder if its bad or just too much boost?
Thanks!!
Thanks!!
12-16-2015, 11:51 PM
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E63 SL55 996TT C5Z06
I was getting that fuel smell sometime after getting my 178mm crank pulley installed and never saw any performance issues, just could not run the AC or heat using the external air setting since you would get the fuel smell.
if i used the AC and heat with the re-circulate setting you wouldnt get any fuel smell.
the indy shop i typically go to (speedriven in palatine, IL) looked at it and figured out that the fuel pressure dampner on the fuel rail went bad and they replaced that dampner (not entire rail) which was like 1 hour of labor plus parts of about 100 bucks for the fuel dampner and o-rings.
almost 2 years later, plus addition of Eurocharged headers and tune and ZERO issues with the fuel smell coming back.
