Hi
i have purchased a 2005 c230 Kompressor coupe with only 48000 kilos on it and very clean, after driving it for a week i noticed the car consumption was outrageous = 14 to 15 L/100 , that s like a truck, so i said may be i'm having too much fun with it,so i decided to put 40$ of gas in empty tank,drove like a real granpa,very very low rpm all the time on C mode ( comfort ),always slow, so for 40$ it did 250 km total only , than on empty tank again i put 40$ and i drove it like a real champ behind the wheel,supercharged anytime i could, Schumacher on the road ,and guess what the result = it did 250 km total ( approxi ) so the car is consuming at it s max ( conclusion) no matter highway,city , low or high rpm , WHAT S GOING ON , please help , i still have warranty but they are scammers i brought the car for something else before and they invented a story to make me pay for a warranties repair, i want to be informed before bringing it to another MB dealer just in case it s another scammer ( we have many in the city ) please help , i mean it 1.8 l engine with a supercharger not a Lambo or ferrai ( or Hummer 2 ) . please help thanks.

 

Fill in your details properly & someone can help you - City, Country etc. You obviously have a problem

 

Done

 

 

I was hoping that someone from your neck of the woods would come in. I can't help with dealers in your area etc. Maybe my moving this post back to the top of the list will elicit some input.

The vehicle is obviously running too rich for whatever reason. Does the car throw any fuel trim codes etc? It could be the MAF, clogged air filter, O2 sensors or a host of other things but you should get a code. Unplug the MAF and drive the car on a default map and see what that does to consumption. It will drive OK

Sooner or later you are going to have to get the car on an analyser and get the dealer to download stored codes to find out what is going on. It should not be that difficult to diagnose. - Good Luck

 

Thanks for the input,i realise now my biggest problem is the dealers, my fear of them inventing a story to make me pay for repairs while the car is still under warranty is my main problem,last time the engine light came on and the car would shake at iddle,i brought in ( after 3 days i purchased it) they said they found water at the base of the spark plugs probably caused by engine shampoo, i told them the engine was never shampood and they said well that s what we found so not under warranty so i had to pay 180$ , i have no proof if they are making things up or not.

i will bring it to them next week,if what you are saying is correct for the MAF or the O2 Sensor than the catalytic converter could be at risk, if they start making up a story i m not paying for cent i ll try bringing it to another dealer.( there is 3 in the city,hopefully they will honor their warranty,other than that i m already regretting buying this car , being a honda previous owner before i never repaired my car for 4 years execpt for front suspension bushings once(normal in canada road condition is horrible). but i sold that car like new and i already miss it for it s peace of mind,this car is awesome to drive but too many things coming up in a very short life time......will see next week..i ll post what the dealer says or fixes next week to let everyone know what that problem would be related to,if anyone had that problem before please let me know...

 

Don't take any crap from dealers. Tell them you are a member of this forum. Shout & wave your arms, demand to see the dealer principal, get the MB rep along. Write to MB - take no nonesense - It's a pity your dealers are bad - Mine is honest & brilliant & I'm allowed to watch my car being serviced or worked on.

 

wow....honest and brilliant...watch the car being serviced...well sounds like another planet to me, the truth is i just bought this car after selling my near to perfect Red honda that i ll post great pictures of it,i maintaned it for years and it was like new still, i conveinced my wife to buy this c230 beauty because it was really wonderful, 3
days later the engine started shaking on idle and the check engine light came on,i brought it to them,he says they found water at the base of the spark plugs and charged me 150 i believe,the outside temperature is missing so he charged me 35$ for the part and 116$ just to install it,later i called another mb dealer that told me it s only 30$ to install + the consumption that is outrageous,( the light came on today for fuel i just put gas on saturday ) my wife is kinda not proud of me on this one...i called today another mb dealer,i have an appointement monday afternoon, we ll see.... i ll keep you guys posted....is being a member of this forum has any influence on them acting in good faith or bad faith , cause that's all what it is bad faith and make us pay more ....i know from you and others that it could be the MAF or the O2 sensor,well see what they say...or do

 

Well you can put their bad name all over the internet & check what they are telling you.

 

alright guys, i have news for you: going to work today,dressed up as the joker for halloween for office party, the car started shaking at idle ( yes again ) like it s gonna stall + my consumption problem,so i said f...k it i went straight to the dealer ( the one not honoring warranty ) and i said guess what,what you made me pay for problem has come back again in the middle of the road, i got so scared it s gonna stall there was so much traffic,he said he ll call a technician to test drive it, and a technician came that appears to be brilliant ( knows very well what he s talking about) i told the technician my shaking problem + my consumption problem , when he heard the story he started Laughing , he said THAT IS NOT NORMAL AND FAR FROM NORMAL ( thank god for that tech ) , so he started the car and right away he said many things, he said that s not a normal start ( i thought it was since i bought it) + the car is defenitly shaking + he ll definetly see my consumption problem , so i told him i was a member of this forum and i was suggested by you guys that it could be MAF or O2 SENSOR,he said if it was one of those 2 99% check engine light would come on,but he ll definetly get it fixed all of the problems,so he went to the service people ( i call them the one in charge to save the company money and make me pay instead) and he told him to open 3 service calls now,the service guy looked at him and said well dont you think we should wait until tuesday??!! the tech said of course no it s not safe to drive that car and anyway why wait ??!! the service guy than said directly in front of me : well he didnt buy it from us, the tech said : so??!! he has warrany and i cant let him go with that car like this---anyway i m sure you guys are not believing this but that s my story , so the car is for repair , and i had to rent a car because they wouldnt give me one because i didnt buy from them, ( what a service seriously , my collegues are laughing at me when they hear i m dealing with such service while i drive a benz and they drive hyndais and getting better service ) and i paid a rental car and i left , if monday they make me pay one cent or not fix my car , I WILL OFFICIALY TURN GREEN ) , will keep you guys posted...

 

I agree with the Tech that the engine light should come on - but who knows - he will check for codes. Good luck & keep that Tech on sides - you need a guy like that - get to know him - buy him 10 coffees

 

Here is the update,as u all know i bought the car on October 3rd for 23000$, a car of that name and price with only 48000 Km should work properly,but since i bought it i m having issues with the car and the dealer, now on Sunday i got so pissed because Silver star dealership wouldnt give me a courtesy car while mine is being repared because i didnt buy it from them,that s their policy they say whether you own a CL or c or e class doesnt matter,so they called a rental car company to pay myself and rent a car,so i rented one,on sunday i realised i m going to pay over 200$ for that rental car only for the weekend,i called my Lawyer that is provided 24/7 by the company i work for(thank god) and fully paid for and told her the Shi..ty experience i ve been having with that car and dealer , she says they should absolutely give me car and what they r doing is totally not the image of mercedes service, so on monday with my Rental i car i went to see them( my car wasnt fixed yet) and asked to speak to someone higher because i dont understand while i have to rent a car if my car is on repair and still under warranty,the service man basicly explained that they are not part of Mercedes Canada or America or any,but they are Unique, they are a Franchise,a Mercedes Franchise dealer yes, that s why they have their own policies,so i said you guys have been checking the same problem for 3 times now and everytime i have to rent a car,what F..king service is that,and that i will definetly never buy a car from them,he said well that the facts and we re trying to fix your car now,so i called MB canada customer service and told them my story,they than called Silver star and asked their manager to look into the car as it should be and fix the F...king problem once and for all,and the manager called me and told me he knows of my problem and will be tracking it.so now Tuesday i m waiting hopefully it will be fixed for good,other than that my sweet Lawyer told me if you have another problem after i can make the judge cancel that Freaking purchase,get your money back from the dealer you bought it ( Volvo ) and we are done , because here in canada when you buy a car it SHOULD F..KING WORK or you can ask the court to cancel the purchase because that vehicule is deemed none usuable or enjoyable ( if those words exist ) and when i cancel the freaking purchase than Volvo will not be happy and can than sue Freaking Silver star Mercedes. THANK YOU, wow , i drove a Honda for 5 years never had one single problem exept the bushings once (150$) and had great service. i had the taking the Bus the other day and Metro didnt use them for so long didnt know how to get in the metro with their new entry system , anyway , hope this will have a happy ending for me because Folks when you buy a car , IT HAS TO WORK. ( and i got the confirmation from them that yes the consumption is way off and not normal )

 

What a difference a Dealer makes. My Dealer's attitude is when you buy a Benz from them "you own a brick or two in the building" & that they are there to make your experience an enjoyable one.

 

sorry bro, but it's kinda hard to read your paragraphs. maybe double space? my eyes hurt!

on a side note, that's a crappy dealership experience. the first time i took my car to a dealership to get service a done, they offered me a shuttle ride home at least, haha. i bought my car from carmax, and i would've probably be stiffed just like you going to that dealership! good luck!

 

Recently at start ups my car starts to shake for a few seconds, then stops. Doesn't happen every time. My CEL came on months ago when an unclamped hose came off, I put the hose back on, car ran fine, but the CEL never went out. I wonder if it's an oxygen sensor that needs replacing. I already replaced the cam sensors and added the isolating wires back in the summer. My car needs to be inspected this month, but my CEL has to be cleared...hmm...

 

UPDATE :
hello everyone, i think you should all know this,and PLEASE HELP ME DECIDE, after 4 days at the dealer since last friday,and as you were able to read complaints directly logged to MB Canada to get this fixed , NOW , i called them today and guess what , THE CYLINDER HEAD IS DEFECT and it was ordered to be replaced so the car will have to wait for repair,THAT WAS causing the rough idle and shaking like it was going to stall,for the consumption problem they will have to wait after that fix and test it and look deeper if it s related or not they will fix it,now knowing i just bought this car not even a month ago and from day one MAJOR troubles, and knowing one of the problems now, i really believe this car if a piece of junk and i should cancel the purchase by a court ( or by agreement if the dealer is reasonable), tell me guys what would you do in my place ( i m frea...king using the Metro and buses these days,winter in canada is at the door) , After knowing this problem i runned a search on internet and guess what c230 owners, this problem is spread like an infection amoung owners,it s a plague,run a search : kompressor cylinder head , and you ll see,forums and posts all over the place, thousands of dollars for repair, plus in some posts i read there was a recall : service bulletin campaign number 2008020002, apparently there is a problem in the design of the cylinder heads ,and the post was for a 2003 c230 kompressor , my HUGE QUESTION and if there is an MB SPOKESPERSON READING THIS PLEASE ANSWER ME : WHY if there was a problem in the design of the cylinder heads of 2003 cylinder heads,why is there the same problem in 2005 models, isn t that very WEIRED ?? , I AM 99.99 % GOING TO HAVE THAT PURCHASE CANCELED, if not other wise conveinced not to , guys , what would you do ??
CAR IS STILL AT THE DEALER---

 

dang man..i'm sorry for the treatment you received.

i've had a couple of hondas in my time and i know what you mean.

As for that crap about being a franchise...all mercedes dealers are a franchise..none of the dealerships are owned by mercedes corporate. But as a franchisee they have to follow the rules set by mercedes or they lose the right to use the mercedes name. I dont get why they won't honor the warranty, its not like there doing it for free, mercedes pays them for it.

I would definately try to get your money back...that cars a lemon, thats probably one of the reasons the original owner traded it in.

I know what you mean about the service, i get better service when i go to the toyota dealership to service my moms camry. Hence why i just DIY now.

Anything german is going to have more problems then a honda or toyota, but once you get all the little quirks out its pretty reliable.

In my c32 i had a couple of minor problems the first 3months of the car but i was able to fix it myself and now its pretty reliable.


If not...you might want to look into a lexus or acura if you want good service.
I know lexus in the US has been rated number one in customer service last couple of yrs.

 

Head failures are more common than you think on both M111 & M271 engines, but more prevalent on the M271.
We have a family member with a M271 (just replaced with a W204) powered C and her car went through 3 cylinder heads in 130,000 Kms.

Benz blame fuel (designed for 95 octane, narrow distillation, Eurograde) & a host of other things.

I think they have it wrong. It seems to plague certain cars & continue to plague them. While the head is a weak spot I think that these cars have a glitch in the engine management system that allows difficult to detect high speed knock or similar & if they start giving head trouble they continue to do so - while some other vehicles give no trouble.

Get rid of the thing unless they are prepared to give you full warrantee on the new head.

 

Thank you for your reply, my warranty ends in February 2009, and i think you have a very good point there,either they give me warranty ( for life ??) on the heads and allow me to buy an extended warranty another 4 years( which they didnt want to up to now because it was not purchased trough a mercedes dealer) for ,or i ll just get rid of it,thanks for your reply, i ll let you guys know of the outcome of all this..

 

Back to his original post:

$40 CND buys about 1/2 tank of gas. 250kms on a 1/2 tank is pretty good for city driving after a cold start.

When driving the crap out of my car I get ~ 400 kms/tank, and with just city driving short commutes (15 kms) I get ~12L/100km. Previously with longer commutes (mostly highway, 30km) I would get ~9-10L/100km.

The M271 does have a significant head defect, yet as long as you keep carbon buildup down (fuel additives, driving hard, ...) it should be fine. The gas station you use has a big impact on this, as some companies add cleaners, while others don't. I switched from Petrocan cause they didn't, and it probably contributed to the failure on my car (piston, not valve - so it could be worse!)

 

I come from the oil company that makes the finest keep clean additive globally - namely Techron. Combustion chamber deposits, while undesireable, have little to do with the head failure mode. Errosion is what leads to failure of the head which could be caused by detonation. If you suffered piston failure it was likely caused by lean running, high speed knock or abuse.

 

well, i m still driving a chrysler seebring for now,the car wont be ready until wednesday may be,so meanwhile , back to the discussion,what would be the best way to keep good care of your engine / cylinder head and all that, good quality gas? ?? oil change ??? i chased a guy living in my street that has a c230 2003 kompressor coupe like mine ( mine is 2005) and i asked him if his car was reliable , he said he has 110.000 km on it and never had one issue,only a the o2 sensor once and they changed under warranty after nothing,so let s hope my problem is just a bad luck...

 

Obviously good gas from a major is a good idea. Please run on Chevron Premium with Techron. Drive your car in a civilised fashion and stick strictly to the MB maintenance schedule & recommended service products - e.g. oil & filters etc. Don't fiddle with the thing unecessarily. Just drive it. I find that the most reliable cars are those that are serviced to the book and otherwise - the hood stays shut.

 

absolutely right,i think that s why my honda never had any issues,regular scheduled maintenance , i ve read about techron now , when they change my cylinder head i know they will replace all fluids , do you think i should use techron after they give it to me or wait 5000km , and if i want to use it,can i do it myself ??
thanks for your advice

 

here is what i found on wikipedia :.......Both Volvo and Mercedes-Benz have issued factory service bulletins advising the use of concentrated Chevron Techron in repair procedures for vehicles with certain mechanical problems...

does that mean i dont need to put techron when i get my car back ?!