kompressorfed

So my cel pops up yesterday and I got it scanned. My tech says its a small evap leak but didnt tell me the specific code. Checked gas cap, its tight. Where else can I start checking for leaks? Will I hurt the car in anyway driving with this cel for the next couple days?

03'55AMG

gas cap gasket might have went... or maybe an injector leak? idk, i had the problem and replaced the gas cap and it never came back.

wsybert

Have you had any work done on the car lately?

kompressorfed

Nope nothing has been worked on lately, gonna try a new gas cap. Hopefully it solves the problem.

MB:Specialist

Most likely your charcoal canister shut-off valve is the problem, the gas cap usually lights up the major leak code.

Hellzno

my car showed a cel for this as well last week. code was p0456. small evap leak. i had it scanned with stars today and did pressure fuel system test...it passed. reset check engine light and has not come back for 50 plus miles.

Tunruh

does ur garage smell like gas? does it smell like gas after u fill up anywhere near the car? if so it could be a fuel pump leak underneath the back bench seat.

kompressorfed

no smell of gas present at any time, anyone had to replace the charcoal canister mentined above? Im going to change the gas cap and try to get a smoke test done.

omar26

I had the same code pop up couple weeks ago and the dealer ran a bunch of test and found a puddle of gas under my back seat. I just ordered the fuel sender unit for 300 bucks each and had my mechanic replace it. Dealer wanted $2,300. Light hasn't been on since and I saved $1,700

03RSTT

Have you seen the gas tank leak thread? You have one of the common symptoms.

Go fill up your gas tank and park the car in the garage overnight. If you smell gas in the garage by morning....then welcome to the club. You may have gas tank/fuel sender problems.

kompressorfed

The evap leak code is a symptom of leaking sender units? I get no gas smell at anytime but I'll do the check tommorrow.

kompressorfed

Removed the backseats and the covers, no fuel leaks anywhere. Plastic was clean white still with just some dust around.. I guess im good for now.

taurran

I have fuel leak issues and get this code. I don't really get the smell inside the car, though. I get the fuel smell outside the car and sometimes some noticeable fuel drips on the ground.

BeltFedBob

Where did you find the sender and pump for 300 bucks each?

Mad Dawg 350

Have you seen this thread??

https://mbworld.org/forums/w211-amg/...all-bombs.html

taurran

Yes I'm well aware of that.

omar26

I have a wholesale account, but i believe the dealership I deal with has a retail price of 390 for the sending unit

tbal

Alvin definitely try the gap cap, I think thay is the culprit. It may take some driving around before the cel goes away...

julian14

Let me start from the get go the first time code P2187 pop up along with p0456/ on my E63 07 / the dealer underwarranty has done multiple jobs already including replacing the intake gasket along with the 20 bolts/the dipstick with red cap/they also did some injector job?? the car at that time would also rough idle in the mornings. after the last fix with the intake it fix the problem up until yesterday when the code p0456 return/alalong with a mild rought idle in morning that is slightly noticeable
no smell of gas leak in or out (that was a problem last year and it was fix)
I sick of this code is like a bad nightmare, taking the car back today again. I getting pissed boys love the car but got D**** its pissing me off. Need help guys!! Is this a common problem with E63
thanks inadvance

tbal

Did you get this resolved?

julian14

Tbal, i got a call from the Service advisor yesterday that it was a faulty purge control valve. I guess they will give the car back today i will let you guys know. I have one question what is the purge control valve for??
thanks in advance

obsidian05e55

It is part of the evaporative emission system of your car. The fuel system of your vehicle contains hydrocarbon fuel vapors that are stored in a canister until they can be introduced into the engine so as not to be released to the atmosphere and the purge valve is what is used to accomplish this or 'purge' the vapor canister and if it is malfunctioning it will usually turn on the 'check engine' light to alert you of a problem.

Just replaced mine too..

julian14

thanks obsidian, i talk too the dealer today they are going to replace the whole intake manifold also along with the purge valve.i get the car back on Tuesday I'll let you know what happens

julian14

the CEl came back up again/check the code P0456 again!!! WTF
this code is killing me! What do you guys think i had the aintake replace/the purge valve replace/oil dipstick replace/etc...

Jimshorts

Bumping this... had a P0455 code thrown also a evap emission code. Shop thinks it has to do with the purge valve anyone have this problem lately?