Smart Car of America Forum banner

1 - 20 of 33 Posts

·
Registered
Joined
·
194 Posts
Discussion Starter #1
From what I can find, there is no in-line replaceable fuel filter on the 451. If that is the case has anyone considered adding one? I don't know enough about the car yet to know if that is even good idea to try. Questions that come to mind:
1 Is there a line that can be cut to add a filter?
2 What is the fuel pressure in that line?
3 Would the factory pump be capable of pushing gas through an in-line filter and still maintain the right pressure?
4 If a filter caused a pressure increase would the computer sense it and if so would it throw a code or put the car into safe mode (is that the right term for a smart I would have said limp mode but recall seeing safe mode being used with smarts)?

I apologize if there is already a thread about this. I am using my tablet and the search function doesn't work on my mobile devices so I could not check.
 

·
Registered
Joined
·
50 Posts
If the smart car does not have a fuel filter, then make sure the fuel nozzle is carefully wiped clean before a fill up. Any dirt, paint, or other particles from previous vehicles could enter the smart car's tank.

Are there fuel injectors on a smart? If that is the case, then would regular fuel injector service be recommended for the smart car at a local Lube shop or just a bottle bought at the auto store? Since there apparently is no fuel filter on the smart, the impurities in the fuel could build-up and clog the injectors.
 

·
Premium Member
MY08 cabrio MY09 cabrio Brabus MY15 ED
Joined
·
7,722 Posts
If the smart car does not have a fuel filter, . . .
"None of the gasoline engined smart fortwo 451's have a replaceable fuel filter.

The FUEL FILTER is part of the fuel pump and is designed to last the life of the car."


As confirmed by Kane at his website Evilution, our authority on all things smart . . .

Evilution - Smart Car Encyclopaedia

No, we don't need a new thread questioning the "life of the car" as YMMV . . . :shrug:
 

·
Super Moderator
Joined
·
28,834 Posts
Again, just my .02 but it appears some new owners are over thinking the car. The Mercedes engineers know what they are doing and the car runs fine as is - if you service it as required and stick to top tier gasoline. Do some more reading, including the owners manual, and you'll find the car is pretty well thought out. :)
 

·
Registered
Joined
·
4,308 Posts
Again, just my .02 but it appears some new owners are over thinking the car. The Mercedes engineers know what they are doing and the car runs fine as is - if you service it as required and stick to top tier gasoline. Do some more reading, including the owners manual, and you'll find the car is pretty well thought out. :)
I agree 100%. After 176K miles, if anybody was going to have fuel quality issues, I think I would have... :laugh:

To the OP: stop worrying about mouse turds, and enjoy the car...:D
 

·
Registered
Joined
·
194 Posts
Discussion Starter #9
Thanks for all the replies and the fun with the :Dso that I know that it is all in good spirits. And in that same spirit I am replying to some of your answers.



Just my .02 - if it ain't broke, etc.....
Can I get an "Amen" from the choir? Yes I do subscribe to the if it any broke don't fix it; however if it ain't right fix it before it causes a problem and I think this may be one of those issues. Between your .02 and my .02 we still don't have enough to buy an nickle candy-bar Oh wait they don't sell those anymore. :D

If the smart car does not have a fuel filter, then make sure the fuel nozzle is carefully wiped clean before a fill up. Any dirt, paint, or other particles from previous vehicles could enter the smart car's tank.

Are there fuel injectors on a smart? If that is the case, then would regular fuel injector service be recommended for the smart car at a local Lube shop or just a bottle bought at the auto store? Since there apparently is no fuel filter on the smart, the impurities in the fuel could build-up and clog the injectors.
Yes per my above it may need to be fixed.
"None of the gasoline engined smart fortwo 451's have a replaceable fuel filter.

The FUEL FILTER is part of the fuel pump and is designed to last the life of the car."


As confirmed by Kane at his website Evilution, our authority on all things smart . . .

Evilution - Smart Car Encyclopaedia

No, we don't need a new thread questioning the "life of the car" as YMMV . . .
No filter if it is actually filtering is going to last the life of the car. If you get a realy bad tankful of gas one trip to the gas station could be enough to clog a filter that is actuality filtering not just screening the huge chunks of trash.

By the way, Kane's site is great and I suggest anyone who does anything to their smart sign up. The information is worth way more than he charges and will save you even more in time and money if you have to do a repair. He also subscribes to the fix it if it is a problem as can be seen in his direction for replacing ball joints. He suggests putting the bolts in backwards so that the next time it is a 10 minute job not a 3 hour job. I don't remember the real times he gave but his pint was it should have been a quick and simple and would have been if they had put the bolts in the other way.:D

Again, just my .02 but it appears some new owners are over thinking the car. The Mercedes engineers know what they are doing and the car runs fine as is - if you service it as required and stick to top tier gasoline. Do some more reading, including the owners manual, and you'll find the car is pretty well thought out.
Well though out?? Maybe but there are some pretty stupid things as well. Your suggestion about top tier gas may have some merit but I'm assuming you have x-ray vision at your gas station. How else do you know what is actually going into the tank.:D There may have been sediment in the bottom of the tank you are using and it would have been fine but you got there just after the tanker refilled it and caused that trash to be dispersed though out all the gas in the tank. I think it was Amoco oil that for a while installed fillers with a watch glass so you could see what was being pumped into your car. Those have all since been replaced with fillers that do not have the watch glass or in one case I saw the fillers with a new plastic cover so that you could not see the gas. I could see just under the edge of the cover and the watch glass was still there. Gone are the days of pumping the gas up into the transparent bowl and watching it drain into the car. :crying:

When you perform this mod, may want to add a fire extinguisher to your shopping list?
Thanks for the safety advice, oh wait no it is not needed. :D Gas evaporates well below its flash point so unless you are checking your engine by candle light or playing with your new stun gun and its pretty sparks you should be fine even if gasoline leaks on the engine.
OK, I know that your saying yeah right just try that in real life and we will come visit you in the burn ward. No you want and YES I have tried that and NOT by choice. There was a factory installed rubber fuel line feeding the fuel rail on a previous car which ruptured as I was driving. The overwhelming smell of gas coming through the vents let me know I had a major issue. I pulled into a parking lot and opened the hood to see a stream of gas about the size of pencil hitting he engine. I turned off the car cut, pulled and reattached the hose tightened the clamp started the engine so the fan could clear the fumes. Closed the hood an drove on.
That said, a fire extinguisher is always a a good thing to have and unlike gas oil can be very dangerous especially if it is dripping on exhaust components. It will reach its flash point before it evaporates if there is a significant amount of oil leaking in the wrong place. So do keep a close eye out for that problem.:|

A few final points. Or here is the problem I have with this setup.

1 I doubt that the filter is much more than a strainer. See comment above. I have changed clogged fuel filters in cars that were bad enough to prevent the car from running. My aunt's Toyota would sputter but not run. Fortunately it had a clear filter and I could see it was clogged. Quick trip to the parts store and she was back on the road. Cars with real filters not strainer have service intervals at which they should be changed. The one in the Subaru I had (and still miss because I ended up selling it due to a bad tank of gas) was twice the size of the Smart oil filter and the one on a Volvo I had was gigantic. Seriously it was like 8" long and 5" in diameter and Volvo expected you to change it per their scheduled maintenance.

2 If it is a real filter and it is on the inlet side of the pump and it gets clogged then you have to drop the tank to fix the problem. Not that big of an issue other than the cost; except part two is that if the filter clogs it will put stress on the pump which can cause the pump to wear/fail and if the pump is wearing or fails where does the debris go. You got, it right up into the fuel lines and into the injectors. Even if the filter is fine the pump can fail and throw trash into your injectors. Thus the possibility that this needs to be fixed.

3 If it is a real filter and is on the outlet side of the pump then is there a strainer on the inlet to protect the pump from trash in the gas? If not the life of the pump could be as short as a single fill up. And the pumps are not cheap.

Again thanks to all and I hope that I have not ruffled too many feathers.>:D
OH Look I found the Smilies and the option to use quotes.:nerd:
 

·
Registered
Joined
·
194 Posts
Discussion Starter #11
That is an awesome TO DO list. And no, this feature is not keeping me awake at night. The reality is that the Smart is the first car I have had in a while that I realy enjoy. I am having fun driving, doing the maintenance, and making a few mods as well. It is my daily driver so I can't do too large of a project but at least having a car is fun again. This forum is a great place and the people are being very helpful. Per my wife's comment to me just now in her sarcastic tone "Are you making friends online?' I said yes or maybe no I may be making enemies but either way it is a lot of fun. Thanks
 

·
Super Moderator
Joined
·
28,834 Posts
See post number 8 - makes you wonder how that smart made it to 176K miles on the original gas tank, fuel pump and integrated fuel filter, all the while pumping gas that has who knows what in it..... :shrug:
 

·
Registered
Joined
·
194 Posts
Discussion Starter #13
See post number 8 - makes you wonder how that smart made it to 176K miles on the original gas tank, fuel pump and integrated fuel filter, all the while pumping gas that has who knows what in it..... :shrug:
Some people are lucky. :) Others might not have such good fortune.
 

·
Registered
Joined
·
194 Posts
Discussion Starter #15
I hope that we all get more than 200,000 miles on these cars and that none of us ever has the misfortune of getting a bad tank of gas. This entire thread has been fun but it also reminds me of my Uncle George. I asked the question based upon advice he gave me years ago and I would take his advice on vehicle maintenance over anyone on this forum unless they have actual documented prof to the contrary. And the fact that it hasn't happened doesn't mean it will not happen at some point.


I miss my Uncle George but that is a conversation for anther thread so I will see if I can find the right place to put that when I get a chance.


Before I post my final comment I want to be very clear that "stupid" IS NOT directed at anyone in this forum.


I wish that everyone had an "Uncle George" of their own at some level if everyone did there would be a lot less stupid in our world.
 

·
Premium Member
MY08 cabrio MY09 cabrio Brabus MY15 ED
Joined
·
7,722 Posts
I hope that we all get more than 200,000 miles on these cars and that none of us ever has the misfortune of getting a bad tank of gas.
Gotta ask, did Uncle George drive a smart?

Dylan may have said it best back in the 60's, The Times They are a Changing'. That applies to even the engineering and manufacturing of passenger vehicles. Heck, "it's not your Father's Oldsmobile" because the brand is dead and gone!

When I go out to my 2008 smart and put the key in the ignition I never "hope" it will start and get me from point A to point B. I just get in buckle up, put the top back and GO!

Oh and when I go road trippin' in my smart ED, GOT NO STINKIN' FUEL FILTER!

Murphy happens, you deal with it and life goes on . . .



Now go out and check the air pressure in your spare tire . . . :popcorn:
 

·
Registered
Joined
·
194 Posts
Discussion Starter #17 (Edited)
No he did not, and I wish he was still with us so he could at least take mine for spin. I can imagine his reaction to my car. And I can hear his voice saying something along the lines of:


"What's that wind up toy you riding in? If I had known you were so desperate for a car I would have given you my old golf cart!"


Then after having a good laugh at me he would have gotten serious and would have taken a good look at it. He would have asked me important questions about the mechanicals and given me suggestion for keeping it on the road.


He might not have known anything about a Smart but he was a wealth of information about vehicles and how to get the most life out of them.
 

·
Registered
Joined
·
4,308 Posts
I asked the question based upon advice he gave me years ago and I would take his advice on vehicle maintenance over anyone on this forum unless they have actual documented prof to the contrary.
Exactly how much more proof do you need? I have put every single one of the 176K+ miles on my smart. No additional filter, no issues. And trust me, I've gotten a few "bad" tanks of gas in that time. One on the way to the Kansas City Nationals that netted me a whopping 24 mpg!!!:eek: I think I could have pee'd in the tank and had better fuel!!!

No issues, no side effects. I come from a long line of mechanics as well. I've been wrenching on cars since I was 8 or 9. Always worked on my own vehicles, always will. But if it isn't broke, don't fix it...
 

·
Registered
Joined
·
194 Posts
Discussion Starter #20
Looks like you and I are going to disagree on this issue and I'm cool with that and I hope you are too. As to you having gotten a bad tank of gas, your standards and my standards of bad seem to be different. If you had gotten what I am talking about as a bad tank of gas you would have noted a lot more than just low MPG. Your MPG might have been over 100 MPG as the car would not be using any while it was riding on the the truck to the nearest service center (even if that is your own garage).
 
1 - 20 of 33 Posts
Top