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      08-13-2010, 05:14 AM   #72
JOHNBMWM5
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United Kingdom
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Drives: 2022 LCI Marina Bay Blue/ Smok
Join Date: Jan 2008
Location: UK

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Quote:
Originally Posted by Serious View Post
I doubt this very much... lets see some proof.

The engines are run in at the factory, rings take seat within the first 20 minutes of run time... your car has had 5x that by the time you get your hands on it. One of the problems maybe that since they don't change the run in oil and it stays in the engines until the change at 1200 miles they may want you to keep the speeds down as the oil is contaminated.

Things that need to be broken in are the clutch, brakes, LSD clutches... there will be some additional wear in of the valvetrain and gears but really road/RPM speed should make much of a difference as long as you are being sane.

IMO drive the car normally from day one but avoid tracking it or high speed runs for 1500-2000 miles.

BTW bmw will not void your warranty for not following break in procedure, maybe if you tracked the car before 1200 miles... but even then I doubt that would happen. They don't like pissing off customers who just bought $70,000 cars a month before.
This is total bo**cks, BMW DO Log RPM and max speeds, IF the running in service is missed, they will NOT honour some repairs, the engines are NOT run-in prior to you getting the car they are "Warm-tested" big difference.
Contrary to what you say there have been many cases were BMW will fight blown engine claims to the point of court action.
PS) In the UK if the running in service is missed the car is just about worthless as no one wants them including the dealerships unless the price is "Way down".
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