Running in period:New M3

[burwoodman]

What is the running in period of an M3. I ahve been told conflicting stories, from non required to 1,500 mile. Thoughts?

Adam

[ScoobyZoom]

Wait til its warm then drive normally...

After 1200 mile service give it a few miles driven normally (as above)

After that? Ring its neck everywhere.

[burwoodman]

ScoobyZoom said:

Wait til its warm then drive normally...

Normal might me 6k rpm...this ok?

[Zod]

up to 1200 miles, do not exceed 5500 rpm or 105 mph.

from 1200 miles to 3200 miles, no sustained periods at maximum speed.

[ScoobyZoom]

Zod said:

up to 1200 miles, do not exceed 5500 rpm or 105 mph. from 1200 miles to 3200 miles, no sustained periods at maximum speed.

Stop reading the sticker on the screen


Adam,

OK in that case be a little more gentle than normal but I wouldn't worry too much after the first service though.

Don't tell me its all sorted??

[burwoodman]

ScoobyZoom said:

Don't tell me its all sorted??

Er, not exactly but that seems to be the most likley scenario. I should know very soon! I'll call u when i know

A

[turbobloke]

From the know-how of a top BMW technician not me - for a couple of hundred miles avoid the limiter and full throttle acceleration, but do access higher rpm occasionally. After that, give it some wellington. The engines will be down on power later if you don't wring their necks from an early age. Same story holds from a 325i compact to an M3. Having driven a 'one lady owner from new' car I can confirm that the engines can remain very tight and under-book on power if you're too gentle with them. Incidentally that M3 engine will be run-in after about 100,000 miles, hope you won't wait that long to enjoy it.