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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > New 08 335i coupe, how should I run the engine first 1K miles

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      11-27-2007, 02:44 PM   #23
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Originally Posted by Former_Boosted_IS View Post
It means there is a break-in for the clutch too. Brakes have a break-in as well. Check out the page I quoted in the manual.
i am ordering a car this february and that will be my first manual car.
i didnt know about break in period for clutch.
hows break in period work for clutches?
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      11-27-2007, 03:59 PM   #24

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Originally Posted by l4wr3nc3 View Post
you break in the engine by only driving in reverse for the first few hundred miles.
I love it!
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      11-27-2007, 04:08 PM   #25

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Originally Posted by judec View Post
from AMS website, maybe it comes handy.
AMS Engine Break-In Instructions
For the first 500 miles we suggest driving at varying engine speeds. Do not get on the highway and set the cruise control for an hour straight. The key to seating the rings is a variety of partial throttle and short bursts of acceleration. After accelerating let off the throttle while still in gear, letting the engine slow the car down. Donít baby the car but donít beat the hell out of the car either. A good variety of driving conditions is the best for engine break-in.
In short: Be spontaneous, but mindful the first 500 miles. Totally my theory of breaking in the car along with other things as well.
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      11-27-2007, 04:55 PM   #26
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I can tell you how i broke in my last 4 new cars with excellent results,meaning no oil burning,etc. I go by the book for the first 500 miles,and then i rev it to 6k in the first 3 gears whenever the road allows.When slowing down i use the engine compression to do so. In other words coming to a stop i would downshift letting the car slow down in the lower gears but not exceeding 5k rpm,s. This helps the rings to seat faster and properly. At 1k miles you can start letting it rip.Thats just the way i have done it, and like i said never a problem of anykind. Did it that way with my 335i coupe,6MT and at 2600 miles the oil gauge hasnt moved off full. I have read that lots of owners at this mileage have already had to add oil.
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      11-27-2007, 08:47 PM   #27

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See, and I never had to add oil at 2600 miles. I am not even advocating my method of break-in, it's just people are still providing conflicting answers. All of my cars that were traded in were healthy without any negative consequences to my break-in procedure. This car may be different, but I doubt it.

Admittedly, I have thrown a rod in one of my cars, but I blame my hillbilly ex-mechanic for that.
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      11-28-2007, 02:09 AM   #28
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I got a call from my $tealership a few weeks after taking delivery.

The sales person said she thought it was funny that as I was driving out I'd turned off DSC and smoked it out the driveway .

Have done 2 oil changes (2,500km and 10,000km) and have had Proceed since 3,000km.

Have not burnt an ounce of oil.

Treated my Subie the same way, never a problem.

Just my 2c worth.
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      11-28-2007, 05:52 AM   #29
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Originally Posted by Last E92 M3 View Post
i am ordering a car this february and that will be my first manual car.
i didnt know about break in period for clutch.
hows break in period work for clutches?
Page 124 of the manual states that too my friend.
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