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  BMW Forums » BMW discussion forums » BMW 3-Series
  Engine Break-in

 Engine Break-in



Any E46 owners out there know what the break-in procedures are for BMW? I have been told by some unreliable sources that BMWs don't need any special procedures for proper break in. This is my first new Bimmer and I want to get it right.
   Reply » Engine Break-in

It's been awhile so it's hard to recall, but I believe the 3 series was keep it under a 100mph for the first 1000 miles or so and then also keep the revs below 4000-4500 for the same time limit.

I do vividly recall how hard it was to do as well. That baby just wants to keep on going and it is so much fun to let it run.

Enjoy your new ride.

-f

   Reply » Engine Break-in

If memory serves me correct, the 100 mph 4000 rpm numbers are correct for the first 1000 miles. I did a Euro Delivery in 2000 and it was so hard to hold it back on the Autobahn, especially when there were other cars passing you like you are standing still.

I'm amazed at how many ED posts recently have pics of their speedos at 140+ mph. I almost wish they'd break these engines in prior to delivery....ALMOST!

   Reply » Engine Break-in

Also, don't drive at constant RPM for too long - try to vary your engine speed. Definitely never use the cruise control.

   Reply » Engine Break-in

Is break-in really necesary in this day and age? I mean, break-in even in the manual is only 'recommended'. For someone who's leasing the car, is there any incentive whatsoever to holding back during that first 1000 miles?

   Reply » Engine Break-in

For leasing, no unless you want to buy back.


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