I tried to search on web, don't seems able to find any related topic about S400H hybrid issue.

My 1st question to all the sifu is, if the W222 hybrid really kong or spoiled or totally stop working, will it affect the car performance by 50%?

Was wondering does the S400H hybrid works like Lexus CT200H, cause I experienced my friend faulty CT200H with the hybrid kong. Though it can still be driven but can feel the 1.8 engine dragging the heavy car with super underpower.

2nd question is, i know this may sound stupid, but hear me out. since the hybrid gonna be expensive, but would it able to fit the S450 (facelifted) turbo into it, since both are similar family engine...

yes, im poorfag cannot afford, just having this question in my mind & wanted to get an answer of it

i would say it affects the response of the vehicle more since the motor kicks in offering high torque. If its faulty get it fixed or keep it as it is if you can't afford. Transplant is going to cost you a bomb. it is not a 1 to 1 fit. your module, ECU, esp, harness, gearbox, safety system, gateway, body control module etc etc needs to be replaced or hybrid. basically its just taking a whole s450, gut 50% of its parts and replace in your current vehicle.

CT200H is heavy compared to other 1.8 vehicle like altis due to the weight of the motor and batteries. if the hybrid fails, you're just lugging extra weight.

you are going to be needing the entire drivetrain of the s450 for the swap to work and this includes all the ECUs
the second thing is to recode all the ECUs to work with the rest of the car

best solution for you is to get a replacement battery which is way cheaper than a drivetrain swap

This post has been edited by bigmac999: Sep 3 2021, 03:43 PM

Why waste time on this. The 400h engine and battery pack are reliant on each other. Why you bring up a 450 turbo engine that is not hybrid to the mix? I dun get it?

may be by doing that would be "cheaper" than subsequent changing every time when hybrid kong? imagine when these rich ppl start selling away the S400h because of the hybrid, it will be such a waste on a nice car like that not to be continue to drive cause of the cost of hybrid... thats why i wonder, if this car will it be limp when the hybrid stop working, with the v6 3.5L i suppose it may still able to carry the weight of the car? lol

haha im just wondering if that will work, not that i can afford it just seeing the car if can be mod to not use hybrid

Thanks for letting me know the engine n battery pack are reliant on each other. cause cant find much info about it thats why im asking, IF the hybrid stop working, can the facelifted turbo to plug into the the S400h, to sort of replaced the hybrid, since the engine are the similar family... this S400h eventually will drop below 100k imay be another 5-8 years down the road & the cost of its hybrid is insanely expensive (RM65k) so i was thinking would it be a better solution for the car not to rely on hybrid...

Why bother about turbo engine? Since can accept transplant just get another half-cut similar to your ride and replace the faulty parts when fail. No need to worry about any coding, miss fitting or wiring issue if not done well.

For all hybrid cars, none of any manufacturer offer de-hybrid service. Whatever wild idea people have to run the car cheap after hybrid system dies will remain as dream.

They actually want you to replace the hybrid part that is faulty or replace the whole car with them, unfortunately 😕

I feel sad about this fact too. Had a hybrid car and sold it at very low price, sigh.

cause the engine may be still running alright so to take out the healthy engine bcz of the hybrid not working, i rasa abit waste la thats why i was thinking may be would it be possible just follow the factory did for their other range of cars

may be another 1 or 2 more gen later the hybrid may not even have new stock then basically the car owners are force to buy a new car unlike the older merc, ppl still try to make it running condition... quite a waste though

anything will work in car modding if you have enough cash to burn

even if your want to put a 2jz engine in it lol

You can strip off the hybrid system. but it takes alot of $$ and complexity to do so. there are alot of modules where the system communicates with the hybrid. Plus some of the cooling system runs to the back of the battery pack and any attempts to bypass or temper the coolant will result in error. My advise is to sell it or Swap it or Fix it. If you intend to keep it for a long run just fix it. the hybrid system is good. If you plunk in a turbo 450 you will cry. because the maintenance, fuel and transplant will hurt you alot. keep it if there's sentimental value. let it go, so that the new owner or enthusiast may put some effort into refurbishing it.

You will at least loose the amount of power provided by the hybrid motors (which is much less than 50%).

Any additional power loss due to limp home mode or etc triggered by the malfunction is very dependent on each car's ECU programming. Maybe some cars you dont notice much difference but others feel like 50%


Memang pun stupid. But where there is stupidity a select few may see genius.


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hahaha putting 2JZ in definitely a good choice, since got jap did to its RR. but if i were to own S400H, i hope to keep it within the MB range n not transplant from another manufacturer.

people always said buying is cheap, maintaining it is the problem. i guess better off to get the previous gen S class without hybrid would be the better choice :/

hahaha bro, I just presuming only, haven't got that kind of money to owned it, at least not at this pandemic time hahahaha... stuck at home too long pop out all sort of question about the hybrid issue & cant find any answer thats why asking if there would be any posibility

even today can afford it, how long more the company will willing to produce the hybrid before they giving up n force the owner to buy new car? eventually this car either go to "museum" display or some other engine transplant may needed which very sad to see...

If really less than 50% a, f the hybrid la just drive n ignore it (if i can afford)

May be transplant the old merc v12 (similar pagani) back to the old car would be cool though haha

parts are not hard to find. there are plenty of OEM parts you can buy from local stores or import it from China. Prices are affordable. My advise is to maintain as it is. If you put in a 2jz, or another other motor, you have to live with a imperfect vehicle. many would think 2jz is a nice engine to put in. honestly, you should drive it daily they only comment. if you're aiming a drift machine or drag rocket then that's the ideal root to go. but for a daily commute, its not so pleasant to drive. infact you will feel its a downgrade compared to your previous setup where its much responsive and refined for city driving. not to mention the other things you need to iron off after you perform the heart transplant, like wirings, custom alignments. vibrations. balancing issues etc. In the motorsports world, those aren't much an issue because you just want SPEED and POWER. but on a daily drive, esp when you fetch people, these problems would shy you from driving it out on a weekend night out. You definitely don't want a unreliable hulk.

join those car groups with enthusiast whom know where to find parts and how to maintain them. I'm pretty sure there are alot of old folks would snag these vehicle as their retirement project cars.

Merz s400 battery spoil u cant even start the car .
Prepare fork out 70-80k to repair

I supposed that will be the only way if i were to really owned it one day... worst case just wait longer n get the S450 instead