Going over the 1200 mile break-in period

[mc909321]

I was trying to book the tune-up for my 2005 M3, but they were booked, so I had to wait a week. Meanwhile, I have been still driving the car and its now at 1360.

The lady at BMW said it was fine to go up to 1400, but is she correct? Should I drive it at all now, or wait until the tune-up? Do I have to still keep it under 4K rpm?

Also, I am finding that the torque in first gear doesn't really kick in until about 2.K-3K rpms, and there is a little lag in that burst. Does this change after the tune-up, or with the sport button pressed?

 

[gpoints]

I was trying to book the tune-up for my 2005 M3, but they were booked, so I had to wait a week. Meanwhile, I have been still driving the car and its now at 1360.

The lady at BMW said it was fine to go up to 1400, but is she correct? Should I drive it at all now, or wait until the tune-up? Do I have to still keep it under 4K rpm?

I'm not sure about this one. Someone else should be able to chime in here.

Also, I am finding that the torque in first gear doesn't really kick in until about 2.K-3K rpms, and there is a little lag in that burst. Does this change after the tune-up, or with the sport button pressed?

You're right, the ///M doesn't seem to come to life untill around 3K rpm. The sport buttton will reduce the "lag" as it changes the dynamics of the throttle response. Contrary to popular belief, the sport button DOES NOT add any power. Just makes the car more responsive.

Here's what I mean about the throttle:

at 20% pedal%, the throttle valve is 20% open in normal mode
at 20% pedal%, the throttle valve is 40% open in sport mode

at 40% pedal%, the throttle valve is 49% open in normal mode
at 40% pedal%, the throttle valve is 71% open in sport mode

at 60% pedal%, the throttle valve is 71% open in normal mode
at 60% pedal%, the throttle valve is 88% open in sport mode

at 80% pedal%, the throttle valve is 87% open in normal mode
at 80% pedal%, the throttle valve is 96% open in sport mode

at WOT, the throttle valve is 100% open in normal and sport mode

Edit: Welcome aboard and congrats on the new car

 

[mc909321]

I'm glad someone else agrees with me on that case with respect to the response below 3K rpm in 1st gear. I can compensate for it usually by taking the traction off and dropping the clutch at about 2.5-3K rpm, to get the car jumping off the line.

I wonder if the CS gets the torque up below 3K. the C32 AMG Benz gets 332 pd/ft from 2300 rpm, but then again, that only comes in automatic, what fun is that? Plus its a four-door, which defeats the purpose of a sports car in my eyes. .

Its a sweet car though, the only thing I hate is when people are in my way and won't move because they are looking at it. They should thank me for having me for letting them look at my ride.

 

[deutsch100]

It is fine to go over a litte when the 1200 mi Service is due. I had the same situation, there were no available appts. when I hit 1200 mi. I went in around 1300 miles, and there was no issue. Just keep the RPMS down, and highway speed under 100-105.

After I had my 1200 mi service, my SA told me to still be gentle on the engine and transmission until 3100 mi (although I do not see that anywhere in the manual). I figure it can't hurt though.

LOVE my car....instant smile everytime I see her.

 

[Tom]

You should be fine, but until you get the new fluids in there. Try to keep it under the limit. As I remember, this means do not exceed 5K rpm or 100mph, but if she suggest 4K then by means, follow her advice.

 

[btay1or11]

Break in periods are for a lot of components. Even with tight tollerances in new engines, seals, rings and bearings in the motor and other parts in the running gear need to seat. There are always minute differences in every parts BMW or any other manufacturer produces. The only problem I can imagine is premature wear and replacement of some parts. By premature, maybe 5k miles less than the 100k life of the component. No big deal.
It seems you are cautious with your new car, do what you think is right. It can't hurt to show a little restraint. And if you can't, just don't stop driving until you reach that 3 or 4k on the odo.