Dealer says I need a new intake manifold......for $1,800 !!!!

I replaced the plugs about a week ago which did not help the rough idle. Got a can of starter spray and found a bunch of spots where the idle would rise slightly when I sprayed near them. This was with the air cleaner housing in place so I could not tell if the leaks are hoses, gaskets or the manifold.
I can see it needing gaskets at 102,000 miles but an entire manifold? If they are telling the truth, how much would one epect to save going to an independant for the repair? Problem is that I get a loaner from the dealer but would have to rent a car if I use an independant, which would probably cost $100-200 plus the aggrevation.
Is this a common problem with our cars? I could not find anything searching the subject except for a bunch of AMG owners having similar issues.
I appreciate any help you can give! At the very least, I plan on visiting the dealer and have them show me the parts they claim are bad before they put it back together.
An intake manifold for an M271 is $400 at Genuine Mercedes Parts.
EDIT: There it is. They have your manifold for $856. Might find it cheaper somewhere else, but that's one of the places I use.
Last edited by Hogger; Apr 2, 2012 at 08:28 PM.

Is the manifold the only parts needed? What about gaskets or do they come with the manifold for $856? I could not find any intake gaskets using their search tool.
When I go to the dealer, will they actually be able to show me what is wrong with the mainfold? I would like to be as educated as possible when I question them.
Thanks!

Here:
https://mbworld.org/forums/clk-class...ld-broken.html
Last edited by johnand; Apr 3, 2012 at 07:52 AM.
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Last edited by Glyn M Ruck; Apr 3, 2012 at 08:39 AM.
The Best of Mercedes & AMG
http://www.oediscountparts.com/parts...icleid=1432266
+ 307 parts
- 45 shipping on parts
+ 370 labor (rough guess - though something doesn't sound right - $1,800-1,110-95 = $595 / 3.8 hours = 156.58/hr - is that really what your dealer charges you?) I'll cut the hours down a little for an indy - 2.5 hrs x 90 = $225
- 150 Rental car (midpoint in your estimate)
+ 482 Net savings
That's a rough guess. I'd say it's probably worth going through the hassle of an indy and a rental car company, if the add'l couple of days waiting for an IM to come in are not a problem.

Since I need to pass the emmissions test to get new tags, the tech rep said that they would take care of putting the miles on it to get the monitors to reset instead of me picking up the car, driving it for a couple of days with expired tags and then taking it back for testing. Since I'm in sales, I figured that the amount of time I would spend messing around with all of this would cost me more in lost commissions so I'm somewhat OK with it.
Just iritates me that something like this is not serviceable and the only option is to replace the entire manifold. I miss the old days of a car just having points, plugs and a rotor. Heck I rebuilt my fair share of carburators back in the day, but now you have to have an MBA and $$$$ worth of tools and diagnostic equipment just to fix a rough idle.
Thanks for all the help! Hopefully this will be of help to others when the time comes.

This dealer looks like they did just fine in my book. Diagnosed the car, gave him a car to drive, showed him what was wrong with the car, are now fixing the car, and then going above and beyond to get the car ready to pass emissions for him.
i'm a proessional in belgium when i was looking at the prices in the US i was surprised actually i work on a new manifold for the 190 i finished the model & i m starting the process of manufacturation you can check my website :
www.chadil.com
i've an online store
if you want more information send me an email to info@chadil.eu
i'll be pleased sharing my knowledge with users on this forum
Regards
I'm not saying that dealers don't know how to fix the cars, like I said, if you replace enough parts you'll eventually fix it. I'm saying the way they go about it is usually incredibly expensive. When my car had a CEL at 30-something thousand miles, the dealer replaced several different emission components before bothering to do any real diagnostics. It was a leaking fuel filler neck, common on the 2005s. Of course, I had to make three trips to the dealer because they kept throwing parts at it and calling it fixed. The CEL kept returning. See, if they'd done actual diagnostics on it at the start the hassle could be avoided. That said, it was all free, aside from my time. If I were paying for the repair it would have been four-figures. This is unacceptable.
Dealers swap parts until the problem is fixed. Sometimes, it's the first part. Sometimes it isn't. A good independent mechanic will diagnose and, if possible, repair a part a dealer would have simply replaced.
It's nice to have options, I think. I do think that your experience with the leaking fuel filler neck is more of an example of the shoddy work at your local dealer than dealerships in general.
To OP, glad that you're getting it fixed. Another benefit - warranty on dealer work and parts. Everyone's just got to decide if it's worth the $$.
RBM of Atlanta did the cam magnet recall on my car a few months ago. They pulled my car in, kept it 30 minutes, and gave it back to me saying that my white 2007 C230 didn't qualify for the recall. Even though they "inspected" the car, they failed to notice it was silver, failed to notice it had a four-cylinder instead of a V6.. yeah, confidence inspiring.
Also, Acura dealers from Ed Voyles to Nalley in Atlanta are also incapable of any real diagnostics. Been down that road. Honda dealers in Rome and Cartersville also not interested in real diagnostics, only interested in throwing parts at it. Chevrolet dealership will reset warning lights that return in a few days, never fix the issue.
The only positive experiences in 10 years at dealerships have been at Nalley Lexus and United BMW.
I've had very good experience with a local Honda dealership on some odd issues with my heavily-modded 24-year-old CRX; they've always been good, and haven't cared about the mods (which is surprising in today's sue-me first environment).
My local MB dealer just fixed my SRS warning issue; if they followed your examples, they would have just told me to replace the entire harness instead of fixing it. Still, everything's a crapshoot, buyer beware, you catch more flies with honey than vinegar, a rolling stone gathers no moss, etc.....
Not sure if they still have the intake manifold, but i just called them for some parts for my 05 c230







