Only happens when the engine is sufficiently hot (20 - 30 miles usually). Is it what we call valve-lift ???

Is it normal or is it something I need to correct?

Thanks

 

It might be the purge valve. Do a search on this common prblem.

 

purge valve... ticks like a mother fckr when im at wot with windows open nad radio down... cant do anything about it and dealer wont fix it

~fk

 

my dealer replaced the purge valve and added some insulation. the sound is alot quieter. i guess it depends on the dealership.

 

Hi everyone, I have been reading this forum for the past 2 years and have not really posted nor registered anything. I guess im so pissed off at Benz for manufacturing such a lousy car with no focus on quality and only on image. But i figured I might as well start talking. I have visited the dealership for my C240 02 18 times so far and this is all in a year and a half for all kinds of issues. But back to the subject. I have been complaining about this ticking to my dealer for some time now. It is the purge valve and yes they do have a fix for it. Now the reason yoru dealer wont fix it is out of ignorance nothing more. You need to go back there and insist on having them find out. I had it fixed and the ticking is gone. Good luck to you.

 

i too have this ticking noise and i too have gotten the run around. ive already had a very very bad experience with a SA. im not sure if i want them to touch my car again. so its the purge valve? does anyone have any paperwork to prove that it is so i can just show the sevice people that theres acctually something wrong instead of it being normal?

 

Where is this valve located?

 

It's under the hood on the driver's side, kind of in front of the left front wheel arch. It's a pretty small part with some tubes on it and an electrical connector. And I think it just clips into a little bracket. If I can find a pic, I'll try to highlight it.

 

here is the picture. like matt230k said, it's the thing with bunch of tubes...

 

*hmmmmm* c32 engine *drool* damn you!!!

 

I noticed this thread goes from coupes to 240's, 320's, etc. My problem is on the 2.3 Coupe. I have a loud, tinny, stacatto ticking from 4K-5K RPM. I did a test drive with the SA and he heard it, and then of course when they took it for service, they couldn't get it to happen again. He felt it was a rattle, but it really sounds 'mechanical' to me. Reminds me a lot of putting a playing card in a bike's spokes. At first, it was only under hard acceleration and load (like up a hill), now it will do it on flat ground, too (in other words, it's progressing and doing it more). I've read all the threads about purge valves, but that seems to be only on start up? Any ideas? Anyone had the same symptoms on a 2.3? Fixes? Places to start? Thanks...

Edit: in another thread, trench explained the bypass valve. Could this be it? Like it's trying to close, but takes a while to seat? I've also noticed on occasion that I'll accelerate, go up through the RPMs with little power coming on, and then all the sudden it takes off like a rocket at about 5k (similar to the feel of turbo lag). Again, possibly a faulty bypass valve?

 

FrankW, actually that box with all the tubes is for the brakes. But if you look real closely, I think the purge valve is the little piece just to the right of there. At least that is where it is located on my car.

 

im not stock so i dont want to push the dealer too much...
I will take it in when i have time..but i dont want to deal with it if i dont lose performance.

ive gave up on my car..... no more unecessary trips to the dealer..

~fk

 

I've heard a similar ticking sound on my C230 coupe. It sounded like a leaf caught in the ventilation fan, but it seemed too regular - i.e. more mechanical.

I heard it a few times around 2000 miles on the odo, while cruising at full speed on the highway but so far it has not returned.

--Steffen

 

oops, i meant the one next to esp/bas brake box...

 

Ok im getting sick of this. Listen up folks, i dont care what model of the C you have the ticking noise you hear is the PURGE VALVE. Now if u want to duplicate this sound to the dealer sit in you car and turn off your radio, AC and leave it in idiol for 3-5 mins and i assure u that the noise will come on assuming you have this issue. Now here are the notes the Tech wrote on my invoice which was done for free ofcourse " PUREGE VALVE IS TOO NOISY, CHECK SI ON THIS, ORDER PART, INSTALLED NEW PART AT FRONT LEFT FENDER." these are the exact notations used. part number is 001-995-56-65 and the description is " CLAMP" hope this helps. This is the best info u will get on this subject. the rest is up to u to go the dealer and advise them that they need to start doing their home work

 

Havin' a bad day BenzC240?

Maybe you should have just posted this:

 

gonna get my car to the dealership for service B pretty soon, might as well get it taken care of along with the driver side window clicking sound, SOS malfunction (4-5 times), creaking noise from front suspension, drifting side mirrors, and trunk not opening properly (hit my head twice because it didn't open all the way up).

all of these are small problems that doesn't really bothers me, just need to taken care of it when i can.

 

but it didn't bother me that much but one thing that really bother me. Sometime I will hear a high frequency sound from Supercharger even when I'm idleing. I also feel the accelation is much more stonger?! This sound will goes away once I accelarate to any speed higher than idle...probably engine sound is covering up the S/C sound.. but reappear when I slow down to idle. It usually last for 10-15 mins and it disapear all together and won't happen again for the rest of drive.
To me, it sounds like S/C is spinning even the car is at idle...anyone have this problem?
ps. but one thing amazed me...the car does accelerate much faster. :P

 

funny TXTiger LOL. no not a bad day and honstly the thread does not suck. The issue is real. However im sooooo pissed off at my car and benz for having so many freakn issues. The whole reason i bought a benz was to make sure i get a relaible car that will freaken last for a minimum of 5 years with no issues. Instead within a year and half i have had more issues than a freaken american car that i had for 5 years. What a joke. Taking my car 19 times to the dealer all the way from right window not working 2 times to having my car towed because the ignition does not recognize the damn keys to replacing the kepys 2 times to light bulb burning out to visor mirror light not working to trunk not able to close to purge valuve ticking etc... This is a mess. its an outrage, ill be back later i need a cigaratte now LOL LOL. But for real 19 freaken times what the hell i feel like the car is breaking down piece by piece. The issue that gets me is people on here dont seem to mind these issues as long as they have the image of a benz. Well if everyone starts complaing then the cars will get built better till then benz will be taking all of us for a ride with an image and no relaibilty to cut corners. By the way the last part was not intended to attack anyone. U r all way cool. Im just angry at my car

 

Maybe some of us dont have any problems, yet. My car has been 100% for almost a year and a half. I'm just lucky or are you unlucky?

 

... its not just the MBZs that are less reliable, it seems to me it's all cars. My brother in law has an '01 BMW 528i which is in the shop all the time (true, he does beat it to hell...) My parents have a Thunderbird which is in the shop every other week because the check engine light always comes on for no reason. I have co-workers with brand new Camrys that have been back to the dealer and Lexus sedans with constant problems. I don't know that the quality of cars is getting worse, I think it's just that the more technical and computerized everything gets, the more things that go wrong. Automakers have violated the KISS principle, and look what we get.

By contrast, my husband and I have old Bimmers- for him an '85 535i with 239M and me an '88 325 (sold last month) with just over 200M and we had next to no problems besides the regular maintenance. Then again, we had no airbags, no traction control, none of the stuff we take for granted nowadays.

So, it's not that it doesn't bother us that our cars are in the shop all the time, it's that you could have that with ANY car nowadays, and well, while you actually CAN drive it, I'd take a Benz over any other make hands down.

So, that may not make you feel any better, because you have way worse luck than most of us... but for my part, the crappy build quality and feel on the American loaners I get stuck with from time to time seem to highlight that a few trips to the shop are a small price to pay.

Then again, you could buy a Honda. You'll never see the dealer again.

(edit: Oh, and one more thing... 99% of vehicle owners know nothing about cars except where to put in the gas and oil. All those people that say they have never had a problem with their car (in general, I'm not talking about this forum), probably HAVE, they just don't know it. And they won't know it until they're stranded on the side of the road somewhere.)

 

JadeLotus. Except...my friend's 2000 Honda Accord had huge problems in the engine...coolant leaks into oil bay. Dealer tried to fix it more than 5 times and finally Honda NA bought the car back. He used to own a 89 Accord and beated it down with 200+k miles, not a single problem but....oh well. Now he own a Lexus and so far good.
Just like SA said, those Ticking sound is normal and that's what they always tell u.
Also most drivers will not notice those ticking sound (no like people on the car forums) unless the engine finally blown up like M3s. :P

 

There goes my last illusion, DL_AMG... *sigh* You know you're in trouble when you can't rely on a Honda.:p

 

Ok to answer mdp c230k's question u r VERY LUCKY not to have any issues for a year and a half. That is unheard of for Benz now a days LOL. I would say most people have had more than 2 problems in their first year. General statistic and no numbers to back it up but i can feel it. Now as for BMW's please people, but those crapy cars with the same catagory as our benzs for reliabilty. BMWs have been always famous for the mother of all electrical problems. Now japaneese cars. Someone here stated that a honda had an issue and a camary had one. Thats a joke because if you take a look at their numbers u probably have a car like that 1 in every 5000 as for benz seems like 1 out of 1 lol. So by far japaneese will last and u have a better chance with that car. Please, no one get me started on american cars. This thread will explode LOL LOL LOL LOL