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    • COBB AccessPORT released for the N55 single turbo powered 2011 and up BMW 135, 335i and 335xi



      COBB is extremely happy to announce the release of the AccessPORT for the N55 powered 2011 BMW 135, 335i and 335xi. We have been cranking extremely hard to get this out – with our best engineers working on making this a terrific product. This is a Beta release – which means that although the support and tuning are 100% complete and, frankly, awesome – we don’t support every single ROM on the road right now. As most of you know (but your friends might not), a ROM is an individual calibration file that makes small tweaks to the Engine Control Unit from the factory.

      Usually these changes are small and completely imperceptible to the consumer – however, we always want to support the latest the OEM has to offer so that all of the safety and reliability that BMW engineers into its vehicles stay there. It takes more work to do it this way – but we think it's best for you and your car.


      As such, during this Beta release of the AccessPORT, it is expected that several customers will need to send in the ROM data collected by the AccessPORT before the installation can be completed. Typically, new ROM support can be added in only 3-5 business days and is as simple as emailing your ROM information, and then completing an AccessPORT update on your home computer. As we collect more ROMs, the chance of having an unsupported ECU software revision goes down significantly and the sooner you can enjoy the added power!


      The AP-BMW-002 will come pre-loaded with Stage 1 Sport and Stage 1 Aggressive power maps, as well as a Stage 0 map and Valet mode for reduced power when needed. Using the Aggressive map, you can expect an 11% increase in peak HP and a 25% increase in peak torque. The area under the curved is also massively increased with maximum power gains near 18% in HP and 26% in torque. Stay tuned for more maps (Stage 1+COBB FMIC) and updates coming soon as N55 development continues! Click the link below for more information and to get yours now!


      BMW N55 AccessPORT: AP-BMW-002


      This article was originally published in forum thread: COBB AccessPORT for the 2011 BMW 135, 335i and 335xi started by COBB Tuning View original post
      Comments 96 Comments
      1. DiCarlo.lucas's Avatar
        DiCarlo.lucas -
        Im probly not in the right forum but What would be the best way to go about selling my accessport? It's the AP-BMW-001.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by DiCarlo.lucas Click here to enlarge
        Im probly not in the right forum but What would be the best way to go about selling my accessport? It's the AP-BMW-001.
        List it for sale in the classifieds forum section. For sale / for trade parts...
      1. skylineguv's Avatar
        skylineguv -
        Any feedback regarding timing of later model (revised ECU) support? @Josh@Cobb
      1. Moodist's Avatar
        Moodist -
        +1 ... I have a friend who is itching to get it before it becomes too late in their lease...
      1. Sticky's Avatar
        Sticky -
        @COBB Tuning
      1. Josh@Cobb's Avatar
        Josh@Cobb -
        We're working on the newer DME, but I still don't have a date for you guys. I really want to get it done too. Its tough having to be so specific with what we support... I'll let you guys know when there are any major updates.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
        We're working on the newer DME, but I still don't have a date for you guys. I really want to get it done too. Its tough having to be so specific with what we support... I'll let you guys know when there are any major updates.
        I was wondering if maybe I could get some details on the difficulty of the F30 ECU for an article and what BMW did to make it so hard to crack.
      1. Josh@Cobb's Avatar
        Josh@Cobb -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I was wondering if maybe I could get some details on the difficulty of the F30 ECU for an article and what BMW did to make it so hard to crack.
        Let me see if I can get you some info/specifics.
      1. Tony@VargasTurboTech's Avatar
        Tony@VargasTurboTech -
        Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
        Let me see if I can get you some info/specifics.
        Were getting close over here Josh. We gonna be ready for the older N55's in the next month or so?..Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
        Let me see if I can get you some info/specifics.
        Thank you would make for a great article.
      1. maxnix's Avatar
        maxnix -
        On the newer DME, it is kind of like a rolling code. Previously, if the key was known, the whole series of the DME could be accessed. Now the encryption is stepped up and the password is changed every time the DME is accessed.

        The above is very simplistic and thus not entirely accurate, but I think even the most lay reader can see the increase in difficulty of cracking it.
      1. 335i-BB's Avatar
        335i-BB -
        @Josh@Cobb @COBB Tuning
        What do you think about this? I've got the same issues he describes since month Click here to enlarge.
        http://www.e90post.com/forums/showthread.php?t=994068
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 335i-BB Click here to enlarge
        @Josh@Cobb @COBB Tuning
        What do you think about this? I've got the same issues he describes since month Click here to enlarge.
        http://www.e90post.com/forums/showthread.php?t=994068
        Please write out your problem or copy and paste. Kindly do not link to that forum in the future.
      1. 335i-BB's Avatar
        335i-BB -
        Hi Sticky. I'm sorry. Here's one of the crucial points pointed out by him. I've just copied it from "the other forum". Seems like we have huge problems with the AFR post shift.

        I've added a log from an N54. I think one can see the difference Click here to enlarge

        N55 DCT Log while shifting:
        Click here to enlarge
        LINK TO LOG: http://datazap.me/u/335iffm/cobb-n55...-15&zoom=4-490

        For comparison here is an N54 Log. Same car, same tranny, same setup, also protuned - just N54 instead of N55:
        Click here to enlarge
        LINK TO LOG: http://datazap.me/u/stanko89/log-3-4...9&zoom=188-379
      1. Sticky's Avatar
        Sticky -
        Have you spoken to Cobb at all?
      1. 335i-BB's Avatar
        335i-BB -
        My friend did a few times. It's a general issue many N55 - especially DCT - have. They just tell you via their support ticket that everything is fine and if there's a problem they'll fix it some time in the future. I didn't pay $900 for this kind of service. I've paid for OTS Maps, nice device, good service etc. The current status is not acceptable. On the N54 it works very smooth, though. I love it on this platform and I like the AP. So let's try to fix this and move on :-).
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 335i-BB Click here to enlarge
        My friend did a few times. It's a general issue many N55 - especially DCT - have. They just tell you via their support ticket that everything is fine and if there's a problem they'll fix it some time in the future. I didn't pay $900 for this kind of service. I've paid for OTS Maps, nice device, good service etc. The current status is not acceptable. On the N54 it works very smooth, though. I love it on this platform and I like the AP. So let's try to fix this and move on :-).
        I'm not going to allow you to not get service or for your questions to go unanswered. You deserve support and this forum is here to help people enjoy their cars. The guys at Cobb are genuinely nice guys who want to help. Let's see if we can get you some assistance @Josh@Cobb
      1. Josh@Cobb's Avatar
        Josh@Cobb -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I'm not going to allow you to not get service or your questions answered. You deserve support and this forum is here to help people enjoy their cars. The guys at Cobb are genuinely nice guys who want to help. Let's see if we can get you some assistance @Josh@Cobb

        PTF sent me some of the logs and I worked with them on a possible solution, but that didn't pan out to be the actual cause of the AFR deviation. This is definitely not anything we saw during our testing, but the N55 platform is still relatively new compared to the N54. I'm looking into what else could be coming into play to cause AFR to drop post shift, but I don't have any answers right now. It took quite a while for the N54 to get to the state it is currently and we learned a lot from that, but the N55 is a different beast. I'm assuming that this is a safety feature built into the DME to add fueling after a shift to reduce chances of detonation. If there is an associated table, then I should be able to get it added so it could be tuned (once I find it). Hopefully I'll come up with something soon...

        Sorry its not a great answer, but honestly it will just take some time to find exactly how to eliminate this.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
        PTF sent me some of the logs and I worked with them on a possible solution, but that didn't pan out to be the actual cause of the AFR deviation. This is definitely not anything we saw during our testing, but the N55 platform is still relatively new compared to the N54. I'm looking into what else could be coming into play to cause AFR to drop post shift, but I don't have any answers right now. It took quite a while for the N54 to get to the state it is currently and we learned a lot from that, but the N55 is a different beast. I'm assuming that this is a safety feature built into the DME to add fueling after a shift to reduce chances of detonation. If there is an associated table, then I should be able to get it added so it could be tuned (once I find it). Hopefully I'll come up with something soon...

        Sorry its not a great answer, but honestly it will just take some time to find exactly how to eliminate this.
        I'm not going to blame you for not having an answer. You provided an answer and very quickly.

        I think people also need to understand platforms evolve at different paces and BMW is making it harder, not easier. Obviously you guys are trying and there is nothing else that can be asked.

        Hopefully solutions will be found.
      1. 335i-BB's Avatar
        335i-BB -
        Thank you for the reply Josh Click here to enlarge