BMW N54 AccessPORT v4.01 and v4.02 Maps Promoted to General Release

The v4.01 and v4.02 Off-The-Shelf maps for BMW N54 AccessPORTs have been promoted to General Release. The v4.01 and v4.02 maps now supersede v3.01 maps, which have been archived. COBB Tuning recommends upgrading to the latest version of the maps for optimal performance. These maps can be downloaded from the BMW AccessPORT Off-The-Shelf Map Database. For instructions on downloading maps, transferring them to the AccessPORT and flashing them to the BMW ECU, please see the Step-by-Step Map Download and Install Tutorial.


COMMENTS
Jack Oldroyd on September 7, 2012 says:

what is the difference between 4.01 and 4.02?

Reply
    Ian on October 2, 2012 says:

    The v4.02 maps are revised for Stage 2+ cars to decrease boost oscillations and provide a smoother power band.

    Ian

    Reply
scott whitney on October 13, 2012 says:

Is Liner trottle better than stock trottle maps?

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    Ian on October 22, 2012 says:

    Linear throttle maps and stock throttle maps make the same peak horsepower! The only difference is how the throttle pedal feels. The stock throttle maps provide throttle input just like the factory: the power surges is and you get about 80% of the the full torque target with only 40% pedal input. Out stock throttle maps allow you to modulate the throttle better and provide a 40% target with 40% pedal input and so on. It really just comes down to personal preference, so I recommend trying both.

    Ian@COBB

    Reply
Quang on April 2, 2013 says:

For BMW 1M, is it true that only stock throttle map retains the M button functionality? Thanks.

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    Ian on April 8, 2013 says:

    The M button only changes throttle feel. So we only keep that “feature” on the stock throttle mapping.

    Ian@COBB

    Reply
Soner on August 19, 2013 says:

hi, what is the difference between Cobb V2 and V3 of the new? the maps are the same? only large display?

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    Marshall
    Marshall on August 26, 2013 says:

    Soner, the V3 has a much more powerful processor and increased memory. This allows for faster flashing, higher resolution while datalogging, and the potential for accessories down the road. The large screen also allows you to display up to 6 monitors in a much more usable manner. – Marshall@COBB

    Reply
Wil on February 8, 2015 says:

For an Australian stock 135 (N54), we have 98 RON here.
Would the recommendation be running a 91 Oct map to be safe (sport) or will 93 (aggressive) map be ok?

Reply
    Marshall
    Marshall on February 9, 2015 says:

    Your fuel quality is usually a bit better than ours here in the United States. You should be okay with the Aggressive map. You can always use the Accessport to view live data or record a datalog to email over to us for evaluation!

    Marshall@COBB

    Reply