masonsoiza

Hi,

I own a C63 AMG P/P+ COUPE 2013, just wondering if it is bad for the gearbox/engine if while im driving along and then drop it into neutral to rev ?

Thanks

Mason

Richard_AMG

I hope not,I do it all the time

Rsquad911

A little Ricer-ish but I'm sure it's fine.

BAD430BENZ

i haven't seen or heard of anyone doing this in years . i would think as long as you don't throw it back in gear before the rpm comes down , it would hurt anything .

Need4Speed

No problem at all, just make sure your rpm isn't too high when you throw it back into gear, and you should be fine!

VaclavSV

Ok I do this all the time and yes things can happen. I was on the hwy and did it and when I put it back into drive the car stuck in 7th all the way to a stop. It eventually fixed itself but I had part of the tranny replaced under warranty. I still do it but now I wait for the revs to get back to idle before putting it into drive. NEVER put it back into drive when it is revving up or down.

CoolBDPhenom03

It's all about the synchro mesh!

MBAdon

Doesn't it waste gas to throw it in neutral when the car has momentum down hill. The wheels turning keep the engine turning without gas but if you throw it in neutral gas is used to keep the engine turning.

CoolBDPhenom03

No, because coasting downhill in gear still keeps you at a higher RPM than if you pop it into neutral. I've cut it too close before running down my tank (I know, I know) and you can actually see the MPG gauge go up when you coast in neutral.

ZephyrAMG

Ekort

when i got my car I was told by the dealer not to do that specially when it's running...... I dont really do that because I never had an automatic car before....

PTW

I really have no idea why anyone would want to do this?

papashango

Rev the engine for that monstrous sound?

adv4nced53

Wow this thread is epic

MaroonC63

Four years later...Still doing this like i just left the lot.

roadtalontsi

probably the turbine speed sensor going out in the contact plate. somewhat common locks you in either 7th or 3rd gear depending on speed. totally unrelated.

No it wont hurt anything, doesnt matter how you do it. It has a self protection in the programming. try going down the highway and shifting into reverse it'll just go into neutral and free rev because its smarter than that. You cant even do a neutral bomb (rev up in neutral at a stop and drop into drive) because it will wait for the rpms to come down before engaging. Dont be scared rev away at the haters.

yesh

I do it to shift between c, s, s+, and m modes.

adv4nced53

Why? It's an auto trans. Worst case you'll change a mode and the car will shift

yesh

No reason. I thought it may be better. Not overly technical myself and thought maybe some other settings changed as well.

jvanbrecht

I doubt you would do any damage to the tranny, there is too much logic in our cars, it will protect itself.

However, the bigger issue is that when you do that while in motion, you have lost all control over the drive wheels, your vehicle is essentially freewheeling. It's a minor loss of control, but throw that into a bunch of other circumstances and you could end up in an accident.