Help...fueling problems??
Thread Starter
Newbie
Joined: Jan 2003
Posts: 7
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From: Winnipeg, Manitoba, Canada
Help...fueling problems??
I have a 99 c230k. My gas tank is about 1/4 full and I can only put in about $2.00 and it starts to overfill. My gas gauge is correct, I have already verified that. I have three mechanics opinions:
1. replace the gas tanks, because it is something inside the tank that you can't replace.
2. check the flap at the bottom of the filler neck, it could be sticking.
3. some type of evaporator module under the hood might need replacing.
Here is what happens...When I remove the gas cap, I hear some sort of air sound and then a thunk, which leads me to believe that it is closing the flap at the end of the filler neck. After $2 or so, The gas will still go down, but VERY slowly.
Does anyone know about a problem like this or maybe even have some diagrams for the gas tankand filler neck, or maybe a location of this evaporator module??
Dale
1. replace the gas tanks, because it is something inside the tank that you can't replace.
2. check the flap at the bottom of the filler neck, it could be sticking.
3. some type of evaporator module under the hood might need replacing.
Here is what happens...When I remove the gas cap, I hear some sort of air sound and then a thunk, which leads me to believe that it is closing the flap at the end of the filler neck. After $2 or so, The gas will still go down, but VERY slowly.
Does anyone know about a problem like this or maybe even have some diagrams for the gas tankand filler neck, or maybe a location of this evaporator module??
Dale
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Joined: Nov 2001
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From: Philadelphia area
2010 ML550, 2010 E350 4M, 1966 Corvette Convt C2
This is not normal for pressure to build to the extent that you hear a hiss when taking the cap off. The most likely problem is the vent to the charcoal cannister is malfunctioning. For this problem I would go to your dealer not a independant mechanic. Repair could be warrantied
Junior Member
Joined: Feb 2002
Posts: 71
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From: So Cal South Bay
2023 E450 wagon 2011 Toyota Tacoma
Have you changed elevation dramatically? I drove from Denver to Albuquerque once and couldn't get more than 25 cents worth of gas in the tank before the pump shut down. Another customer said difference in air pressure between the gas tank and the outside air caused by the drop in elevation was causing my problem. I don't know if he was right but after letting the car set overnight in Albuquerque, I could fill up with no problem.
Thread Starter
Newbie
Joined: Jan 2003
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From: Winnipeg, Manitoba, Canada
Unfortunately, I haven't been travelling anywhere. The car hasn't left the city for a while. So That probably isn't it. But I will keep that in mind if we go anywhere.
Thanks,
Dale
Thanks,
Dale
Member
Joined: Apr 2002
Posts: 114
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From: California
2000 E430 Desert Silver
Similar problem
I have a 2000 E430. My gas tank is about 1/2 full and I can only put in about $10.00 and it starts to overfill. My gas gauge now shows 3/4 full. I don't know if the gas gauge is not correct or I have a similar problem with the Gas tank. So far, I have tried at different gas stations. The funny thing is at Shell, I could fill up and the gas gauge shows 'Full'. Any other stations, so far, I can fill up up to 3/4. The last couple weeks, the Shell station was closed for a maintenance, so I couldn't go back and check it out. I also heard that a lot of people also has the similar problem with the Gas sensor. 
MBWorld Fanatic!
Joined: Nov 2001
Posts: 2,332
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From: Bloomington, IN
1997 Toyota Tacoma 4x4
Re: Similar problem
Originally posted by phungpho
I have a 2000 E430. My gas tank is about 1/2 full and I can only put in about $10.00 and it starts to overfill. My gas gauge now shows 3/4 full. I don't know if the gas gauge is not correct or I have a similar problem with the Gas tank. So far, I have tried at different gas stations. The funny thing is at Shell, I could fill up and the gas gauge shows 'Full'. Any other stations, so far, I can fill up up to 3/4. The last couple weeks, the Shell station was closed for a maintenance, so I couldn't go back and check it out. I also heard that a lot of people also has the similar problem with the Gas sensor.
I have a 2000 E430. My gas tank is about 1/2 full and I can only put in about $10.00 and it starts to overfill. My gas gauge now shows 3/4 full. I don't know if the gas gauge is not correct or I have a similar problem with the Gas tank. So far, I have tried at different gas stations. The funny thing is at Shell, I could fill up and the gas gauge shows 'Full'. Any other stations, so far, I can fill up up to 3/4. The last couple weeks, the Shell station was closed for a maintenance, so I couldn't go back and check it out. I also heard that a lot of people also has the similar problem with the Gas sensor.
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Member
Joined: Apr 2002
Posts: 114
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From: California
2000 E430 Desert Silver
fuel-level sensor
mbtech208,
Thanks. By the way, does the 'new' Fuel-level sensor last longer? Once we replace it with the new version, hopefully it won't happen again. I heard so may people complaining about this problem. I can not imagine that Mercedes doesn't know how to make a 'good' Fuel-level sensor.
Thanks. By the way, does the 'new' Fuel-level sensor last longer? Once we replace it with the new version, hopefully it won't happen again. I heard so may people complaining about this problem. I can not imagine that Mercedes doesn't know how to make a 'good' Fuel-level sensor.
Last edited by phungpho; Jan 23, 2003 at 02:41 AM.
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Thread Starter
Newbie
Joined: Jan 2003
Posts: 7
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From: Winnipeg, Manitoba, Canada
The dealership says that the expansion reservoir is plugged and there is no way to unplug. So I have to buy a new one for $291 plus labour. On a side note, my blower motor is not working properly and they say that I need a new one ($454 plus labour). I have 84,000 km (52,000 miles) on my 1999 mercedes... shouldn't these things last a little longer than that?! My warranty was over at 80,000 km, how convenient for them... Can I get Mercedes to pay for some of this??
Dale
Dale
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Joined: Nov 2001
Posts: 2,332
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From: Bloomington, IN
1997 Toyota Tacoma 4x4
Originally posted by dalrex
The dealership says that the expansion reservoir is plugged and there is no way to unplug. So I have to buy a new one for $291 plus labour. On a side note, my blower motor is not working properly and they say that I need a new one ($454 plus labour). I have 84,000 km (52,000 miles) on my 1999 mercedes... shouldn't these things last a little longer than that?! My warranty was over at 80,000 km, how convenient for them... Can I get Mercedes to pay for some of this??
Dale
The dealership says that the expansion reservoir is plugged and there is no way to unplug. So I have to buy a new one for $291 plus labour. On a side note, my blower motor is not working properly and they say that I need a new one ($454 plus labour). I have 84,000 km (52,000 miles) on my 1999 mercedes... shouldn't these things last a little longer than that?! My warranty was over at 80,000 km, how convenient for them... Can I get Mercedes to pay for some of this??
Dale
Thread Starter
Newbie
Joined: Jan 2003
Posts: 7
Likes: 0
From: Winnipeg, Manitoba, Canada
Finally got the problem fixed. It was a carbon filter in the DRIVERS side rear, not to be mistaken with the expansion tank beside the filler neck (which they replaced first and didn't fix the problem). Also costed about twice as much too! Total with labour costed around $800... but now I can put gas in!
Thanks for your feedback,
Dale
Thanks for your feedback,
Dale
