[elalona]

WHEN CAN I FLOOR MY 335 ?
what i want to say how many KM OR MI i have to drive it before i floor it.......

i want to see how its act......... .... ....

[Norsk]

BMW recommedation: After 2000KM

Gradual increase after that.

I followed it...

but hey, afterall it's your car and your $$$

[bavarian19]

wait until 50,001 miles...

[soma4u]

right away

[elalona]

Originally Posted by bavarian19

wait until 50,001 miles...

-----
2K... .....1k to go

[Hawkshaw]

Originally Posted by Norsk

BMW recommedation: After 2000KM

Gradual increase after that.

I followed it...

but hey, afterall it's your car and your $$$

+1

[CASHBY]

i have built, and broken in a few motors and my saying is always

"never break in a lazy motor"

meaning if your going to baby the motor for 1000 miles, than thats how it will break in...

the first 80 miles is probably the most crucial.... you really just want the rings and all to set well.

i put about 80 miles on mine, and then started driving it like i normaly would.

there is a link floating around here about breaking in motors, ill try to find.

[CASHBY]

Here it is.

http://www.mototuneusa.com/break_in_secrets.htm

some dont agree though.

[teknochild]

some people say to follow the manufacturer

some say to flog the **** out of the motor from the seond you get it, because of some guy who rebuilds motorcycle engines wrote a web article about it, but a lot of people discredit him


in the end theres no way for you to know unless you know a lot about engines, it wether your going to trust the manufacturer engineers of the car (which is NOT always the best idea mind you) or some guy who makes claims on the internet

[2007/335i/coupe]

With all the cars I've ever bought/leased, I rarely follow the manufacturer’s suggestion. I'm not saying they are wrong, it's just my preference. Typically I gradually increase the rpms so that eventually I use about 65-70% of the total rpms for the first 100 miles or so. After that, I'll redline it on occasion while still driving it aggressively for the next 100 miles. Get an oil change and then drive it as I normally would until 1,000 miles ( I'll still push the car and redline it every so often ) and do one more pil change. After this, I follow all the suggested service intervals.

One of my mechanics did mention that he felt with todays engine technology and building process, it's not like how it was in the 70s or 80s. Engine tolerances are already up to spec and although you should allow the rings to set, it makes a small difference in the overall life span of the car. So if you gently broke the car in, you maybe able to drive it for 200,000 miles versus 175,000 miles. Most of us will rarely keep a car for that long, but my Accord does have 210k on it now and only burns about a quart of oil every 3k. I broke the Accord in the same way as above. In the end, all of my friends break in their cars differently and none of us have any problems, so enjoy your ride and don't worry about it too much

[Norsk]

Originally Posted by CEA 3

Here it is.

http://www.mototuneusa.com/break_in_secrets.htm

some dont agree though.

This subject as been beaten to death.

Now, a little perspective; although many engines have many basic things in common, they also have many variations that make for a big difference.

Think of a company like BMW, that have been racing for years and selling and marketing "performance cars" (to the average joe or jane & racers alike). You would think that they don't know, some people beat the car or drive it like morons?

I'm sure this guy at Moto..whatever has good intentions; but who would you trust with your BMW engine? Him or the Engineers that design and built it.

They want you to enjoy your car as long as you can, this is also one of the reasons why their resell value is so high.

BMW also know that this car would be, is and will be under the microscope; so I think that when they recommend to you a "break-in" procedure, it's for some of the reasons below:

1. They don't want idiot driving the car like morons and then bad mouthing it
2. They don't want to waist their time with you at their dealerships
3. They don't want you to cry because you don't have your car for a month because they have to replace your engine under warranty (the worst part is they will)

Here is a BMW corporate video:
http://content.bmwusa.com/microsite/...view22_wmv.zip

Some more:

%20BMW
http://www.kabeleins.de/auto/tests/artikel/07842/
http://www.autoexpress.co.uk/videos/...w_3series.html
http://www.e90post.com/forums/showthread.php?t=24617
http://www.e90post.com/forums/showthread.php?t=40208

In the end, we like facts and concrete data and not the feeling in someone's but. Like those that use to know how many G's their car pulled in a corner by the feeling in their but. Sensors, Tools and Analysis gives you the real picture

Even the best drivers in the world, Schumacher, Senna, Alonso ... that's one of their strengths... ability to communicate feel of what the car is doing, look at the data to corroborate, discuss with their engineers.

Have you noticed how Ferrari engine are a little (a lot) more reliable compared to say 7 or 8 years ago?

Cheers chap

[DrGP]

Originally Posted by CEA 3

Here it is.

http://www.mototuneusa.com/break_in_secrets.htm

some dont agree though.

There may be a need for a slightly more conservative method if the cylinder walls are Alusil like most of the OTHER BMW (alum-magnesium) engines. Reason is that the Alusil linings are acid etched and extremely hard rather than mechanically cross hatched as in a metal cylinder sleeve used in the 335i turbo (aluminum) engine

[Josh49]

Do a search for "break-in"

Read the 50,000,000 posts on it.

Decide for yourself.

[CASHBY]

yea i wasnt saying i agree 100% with what that guys tatics are.

however i have personaly built, and broken in many motors.

On my A4 I have a built motor in it, with forged internals and did the same process i always do... baby it for about 80 miles and then drive it like you normally would.

that motor seems to be holding up fine, doesnt blow smoke..and runing like a damn champ, in all my other cars and motors i have built, this is the method i have used.

not saying you should do the same because you have to pay to play...but at the end we have to trust BMW and how they build their motors.

everyone will have their own point of view

[stressdoc]

Full acceleration OK after a few hundred miles IMO. Avoid redline until 1000. Avoid constant RPM (no cruise control or steadt speed highway) for 1000. Oil change at 1000. Live happily ever after, but always drive with care. Listen to the mechanicals and always check out anything unusual. BMWs have extraordinarily high quality engineering and materials, and will last several hundred thousand miles with appropriate maintenance.

[RiXst3r]

You can floor it all you want, just keep the RPM's under 5k for the first few hundred miles, anything past that in my opinion is safe to drive however you want... this is also what my bmw dealer told me... just dont flog the rpm's for a while...

If its an auto, drive in M and stay out of the kickdown to avoid high rpm downshifts

[teknochild]

Originally Posted by stressdoc

Full acceleration OK after a few hundred miles IMO. Avoid redline until 1000. Avoid constant RPM (no cruise control or steadt speed highway) for 1000. Oil change at 1000. Live happily ever after, but always drive with care. Listen to the mechanicals and always check out anything unusual. BMWs have extraordinarily high quality engineering and materials, and will last several hundred thousand miles with appropriate maintenance.

yea with all the break in ideas out there, im pretty sure that the best to follow for sure is no constant rpms, gut feeling

[CASHBY]

yea the best thing is when you are coming up to a red light or a stop sign.... dont take it out of gear... down shift and let the RPM's drop until you stop.

[MacAttack]

Originally Posted by CEA 3

yea the best thing is when you are coming up to a red light or a stop sign.... dont take it out of gear... down shift and let the RPM's drop until you stop.

Just me...but I thought I read somewhere not to down shift during the break in period. Either way...to each their own.

My opinion...go with BMW's recommendation.

[dmboone25]

Originally Posted by elalona

WHEN CAN I FLOOR MY 335 ?
what i want to say how many KM OR MI i have to drive it before i floor it.......

i want to see how its act......... .... ....

give it hell from the get-go!

[elalona]

I will do it as my dealer told me..
drive safe
dont go over 3K RPM which is 150 KM/h at 6th Gear.
stay like this till 2000 KM..
..
I did it before with me E39-530i and it was fine...
the only thing was OIL alarm every 20000Km, "LOW Oil Level" and i used to take it to BM dealer to fill the Gap!!!
but over all... i have never lost a race with any 530..
i hope to do so with the my Э35

[Norsk]

Originally Posted by elalona

I will do it as my dealer told me..
drive safe
dont go over 3K RPM which is 150 KM/h at 6th Gear.
stay like this till 2000 KM..
..
I did it before with me E39-530i and it was fine...
the only thing was OIL alarm every 20000Km, "LOW Oil Level" and i used to take it to BM dealer to fill the Gap!!!
but over all... i have never lost a race with any 530..
i hope to do so with the my Э35

Elalona,

3K RPM is a little too low

Here is a little reminder that I had done for myself; your dealer is a little off (this is straight from the manual); it's always a little better to follow BMW AG recommendations.

Stressdoc's and other member's part about the oil change after break-in is also good ...

Hope this helps & good luck