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Gas cap question guys and gals. I have a 2007 sl550 and engine light came on so I plugged the code reader to it and it indicated air leak. Upon further research I was told to replace the gas cap so I bought a genuine MB gas cap for my car and replaced it with clearing the code. I got the check engine light back and one day while driving the whole cluster turned blinking red saying the cap is missing. Researched a little bit more and started comparing the pet number from old gas cap which I kept and the original part number is a2214700705 and the one I purchased is a2214700605. I also noticed that original cap ha writing on it “ohne luft” which in German means “no air or no ventilation” but the one I purchased says “vented” on it.
Any input from anyone on this?
Thank you!
ok, so i am still having issues with CLE coming up and now a new error in the cluster that i haven't seen before.
it says my FUEL CAP is OPEN. ??? it stays red and amber fuel pump icon is blinking for about 3 minutes and then it goes away.
CLE remains lit.
Anyone has any ideas why this is happening?
brand new fuel cap installed couple weeks ago.
As a test I filled my car with fuel and drove away without putting the cap on. I drove 200 feet to a parking spot and idled for a few minutes. CEL Came on. I put my fuel cap on and drove 10 miles with CEL ON. Parked and started car 2 hours later no cel. Not sure if this experiment helps but hopefully it is simple for you . Can you connect to DAS?
yeah i am not sure what i am dealing with here. and this started after i installed a brand new cap. i kept the old one so i will put the old
one back and see if this happens again. at least i'll know if it is cap related.
one weird thing is that the original one says "Ohne luft" on it which in german it means no air and the new one says "Vented".
and i asked this question earlier and one of the members here said i do have the correct cap. i doubt that now since this error started showing up.
Here is a picture of my SL550 gas cap showing Vented (in German) and part number A2204700705. Does this match your original and replacement part #? Defective replacement cap? Do you have DAS?
Here is a picture of my SL550 gas cap showing Vented (in German) and part number A2204700705. Does this match your original and replacement part #? Defective replacement cap? Do you have DAS?
"Ohne Luftung" means without air or no air. this is why i am perplexed about original saying without air and replacement says vented.
doesn't make sense.
no, i do not have the Star equipment and software.
Have you asked the parts department at your local dealer about the correct cap and the venting note on the cap? I would call a few dealer parts counters and see what they know.
i ended up taking the seal from a new cap and installing it on the old cap. i checked both caps and original is metal on the inside just like on the picture above MBCO posted and new one is all black plastic inside so they must be different.
i'll see how it goes with a new seal on an old cap.
I get a similar issue related to code 0410 (secondary air injection system) and lately it has flashed the screen saying my gas cap is open when it isn't. I have star and tested the 2nd air pump it works fine so I can rule that out.
I read on here it could be the charcoal canister which could need replacing. The purge valve is also interesting I may just throw those two parts at the car and report back.
When the car is moving I rarely get the indicator light but when stuck at a light for long enough the dash lights up red and flashes with the fuel light flashing to indicate the cap is left open. Hopefully we can both sort these problems out, I'll order parts today.
Last edited by eatmycrackers; 07-15-2019 at 03:45 PM.
I get a similar issue related to code 0410 (secondary air injection system) and lately it has flashed the screen saying my gas cap is open when it isn't. I have star and tested the 2nd air pump it works fine so I can rule that out.
I read on here it could be the charcoal canister which could need replacing. The purge valve is also interesting I may just throw those two parts at the car and report back.
When the car is moving I rarely get the indicator light but when stuck at a light for long enough the dash lights up red and flashes with the fuel light flashing to indicate the cap is left open. Hopefully we can both sort these problems out, I'll order parts today.
hi,
what's a charcoal canister, where do i get it and is it hard to replace?
yeah, i sure hope we find the culprit.
hi,
what's a charcoal canister, where do i get it and is it hard to replace?
yeah, i sure hope we find the culprit.
from what I understand it directs vapors and fumes from the exhaust mitigating air pollution by directing those fumes back into the engine to be burned again.
It could either be broken or just clogged. This is what it looks like but I can't locate it online. Popularly behind the rear wheel (I would check passenger side) or it might be under the hood, try there first.
It's real simple, it should be a NON vented cap, you need a replacement that is either the original part number or a placement that the deal certifies is a newer part number that replaces the original. The computer knows that there is air coming in through the wrong cap, that's why it says GAS CAP. It is not other things in the evaporative emissions system. Get the right cap.
Gas cap question guys and gals. I have a 2007 sl550 and engine light came on so I plugged the code reader to it and it indicated air leak. Upon further research I was told to replace the gas cap so I bought a genuine MB gas cap for my car and replaced it with clearing the code. I got the check engine light back and one day while driving the whole cluster turned blinking red saying the cap is missing. Researched a little bit more and started comparing the pet number from old gas cap which I kept and the original part number is a2214700705 and the one I purchased is a2214700605. I also noticed that original cap ha writing on it “ohne luft” which in German means “no air or no ventilation” but the one I purchased says “vented” on it.
Any input from anyone on this?
Thank you!
When I replaced my gas cap it took several days for the fault to clear
When I replaced my gas cap it took several days for the fault to clear
just an update:
it's been 4 days now since i installed a brand new seal to an old (original) cap and haven't had CLE or GAS CAP OPEN error on the cluster (knock on the wood).
i start the car at least 3 times a day to drive so that was over 10 starts already with no error messages.
of course, with my luck i will be driving home from work later tonight and one or both errors will come back up LOL
almost 1000 miles later, still no CEL or MISSING GAS CAP error on the cluster
i guess it was the seal that had to be replaced and new "Vented" cap does NOT work.
It's real simple, it should be a NON vented cap, you need a replacement that is either the original part number or a placement that the deal certifies is a newer part number that replaces the original. The computer knows that there is air coming in through the wrong cap, that's why it says GAS CAP. It is not other things in the evaporative emissions system. Get the right cap.
you were correct,
i bought a brand new "Vented" cap and did NOT work. i even got a MISSING CAP error message in the cluster with a brand new one.
decided to take a seal from a new cap and install on the the old original MB cap and almost 1000 miles later, no CEL!
i was wondering why the original cap said "Ohne Luft" which in german means "no air" which contradicted the "Vented" new cap.
thank you!!
Are the parts numbers identical? Hard to imagine vent and no vent design changes without part number change. My previous post has cap from your twin car,
05-30-2019, 09:12 AM
