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

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?

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.

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.

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

Lets be real.
This S400H is not for the typical average Myvi owner. Or someone thinking to buy one cheap and swap in whatever monstrous turbo beast.

Its either owned by CEO , Directors or some top gun, who couldn't be bothered about battery failure.
That's taken care by Merc service centre. Which is handled by whoever monitors their fleet of car maintenance.

They have a ton of thoughts about making company profit and reducing losses. Not thinking about how to deactivate the battery.

get a lexus. scotty kilmer approves this

total waste of time when S class non hybrid are so many to pick from

What you're attempting to do is extremely complex and will be extremely expensive.

Might be better off buying a S450 rather than a S400h and then trying to convert it when it spoils.

However if you happen to already own a S400h, then if it's just the batteries you could probably replace it by modules as you could with a Prius or a CT200H.

If hybrid battery and hybrid system so easy to spoil and so hard and expensive to repair, then how is the "hybrid is greener and better for environment"?

Not even used for few years then throw away. Is this even justify the fossil fuel savings that hybrid system uses vs normal ICE system.

like this a toyota camry 2,5NA is even more environmental friendly compared to hybrids, because NA cars is more durable, can be driven for many years.

Who says about throwing away hybrid cars? TS is asking about adding turbo into the hybrid engine.

As for the hybrid batteries there are usually 8 years warranty for them. However, after that the battery will cost a lot to replace. Depending on car manufacturer, some are reasonable and some are not. Hybrids are phasing out soon. Most people would go for full EV or stick with ICE. BTW, you don't see many used continental hybrid that is more than 8 years old on they road, don't you?

Maybe you are right..it's not environmental friendly to dispose hybrid after 8 years. Many ICE cars are also disposed around 10 years also. So it's not really that far fetch. Same thing with current BEV, we don't know what the future will be like after 10 years. It's all manufacturers way of pushing stuffs to the consumers.