W220 Is V12na2TT possible?
I am new to Mercedes Benz.
looking to take ownership of a 2001 s600 that runs really rough, but I can get it really cheap ($2-2500) and I am considering swapping out the pre-facelift headers with twin turbo headers to give it 6psi of boost after fixing the ignition issue. Or timing issue of that's what it turns out to be.
any advice on things to maintenance/ improve while I'm working on it? I haven't found a good description for engine removal, yet.
I have experience swapping turbo parts into non-turbo variants (1984 300zx na2T), and working through a plethora of maintenance items on my 2001 740iL. What new things should I expect with MB?
I haven't been this excited since buying my first car years ago, proceeding to slide it into a ravine 1 week later.
- Jay Wye
Last edited by jy1235689; Mar 9, 2018 at 05:00 AM. Reason: Make title relevant



I am pretty sure if you start with a V12 NA S600, you are going to spend more than $2-4k to finish the project that's not include labor. The rough running may cause by
the two ignition coil bank on each 6 cylinder, it will cause you $1k each if you are doing yourself. Also 2003 and up W220 has a lot improvement than 00-02. I don't think
you will save money if you start with a V12 NA W220.
This car is going to be a hobby sitting in the garage until complete, so labor ≈ $0 . I took Electrical engineering courses in college, I'll definitely be taking apart the coil packs and ignition voltage regulator to repair if possible (this is essentially what v12icpack.com does for $500 labor cost). I just am hoping that is the case and not fuel system related when I go check it out this Sunday. Owner says "it's not safe to drive" so It may be running on 1 bank.
I believe the stock tune should be ok for 6psi, but I will be definitely looking into those assets! The hardest part for me is finding a good program to visualize the fuel and timing maps.
It isn't just the price I'm after. The only other example of an s600 remotely nearby is another 2001 in running condition with the owner asking $8k. I know that when I saw a 2003 CL600 for $6k last year I would regret not getting it, because none of them are left to buy.
Why this is happening: Americans are prospering again and there is no more need to sell their collectables and luxuries to make ends meet.
Jay
rough running could be anything else, e.g. 02 sensors and/or cat converters, crank case ventilatio, 6 cylinder shut down system, etc.
I did keep all those in mind but didn't think of crank case ventilation until you said something.
looking at car tomorrow, wish me luck
Last edited by jy1235689; Mar 10, 2018 at 09:55 PM.
I need to somehow check the WOT injector duty cycle before the swap
and
I'll have to put in a wideband o2 for each bank and get mechanics ears (alligator clip microphone) so I can watch out for leaning out / pinging before I even attempt the build.
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But if you want to be the 'FIRST' to ever attempt to do such a swap and hopefully get some recognition for it, then I can see why not. In that case, here are some of my advice: Make sure you check the valve cover gaskets. They tend to leak in these models. Also the oil cooler, which is the worst problem this car can have(along with the hydraulic suspensions). But you probably won't know that till you get the car up and running. Possibly remove the intake manifold and inspect if there is any oil leak on the rear of the engine. I have an 01 S600 and I'm going to be replacing the oil cooler in a few weeks. It's the most excruciating and labor intensive job, at least in my book, which requires the removal of both heads. Hopefully your hydraulic suspension is doing alright. If not, expect to dish out some $$$ on that as well.
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your first step would be getting it to run correctly on the NA setup , because if you can't do that then no point tryin to turbo it
Https://youtu.be/cJvYqunsu44
1 year sounds about right with a complete engine tear down.
and you're right about it being worth more in parts, which goes against my goals.
thanks for reality
If you're looking for a v12 project, I recommend you look for a 94-99 V12 Cl, Sl, or S class. They are much more simpler engines with no outrageous problems like coil pack misfires and they sound like Zonda engines when straight piped. They are far better cars mechanically and electronically and they also look better inside and out than the w220 era cars in my honest opinion. Just avoid the early models if you can, try to get 97-99 as they are the most reliable with no transmission or engine wiring harness problems.
they will all be junk . Find a CA or FL car where there are tons of luxury cars rust free
do What Alex just said
get a 97-99 600
no issues with the engine
here is one for $2999
https://sfbay.craigslist.org/eby/cto/d/1997-mercedes-s600-cleantitle/6508098289.html
or $2300
https://sfbay.craigslist.org/pen/cto/d/mercedes-benz-s600-v12/6526126716.html





