{"product_id":"msd80-to-msd81-upgrade","title":"MSD80 to MSD81 Upgrade","description":"\u003cp\u003eMail-in programming service that upgrades applicable BMW N54 vehicles from an MSD80 DME to the later MSD81 platform.\u003c\/p\u003e\u003cp\u003eThe service generally requires the CAS module, one working key and a compatible donor MSD81. Injector calibration data may also be required. Contact Tuning Dynamics before ordering for parts and shipping instructions.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eTuning Dynamics ordering note:\u003c\/strong\u003e Ordering, shipping, scheduling, and customer support for this listing are handled through Tuning Dynamics. Contact us before ordering if vehicle, module, or service eligibility is uncertain.\u003c\/p\u003e\u003ch2\u003eComplete technical and service information\u003c\/h2\u003e\u003ch3\u003e\u003cstrong\u003eBasic Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eBMW's one of the best engines, model N54 was used in\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW 135\u003c\/li\u003e\n\u003cli\u003eBMW 335\u003c\/li\u003e\n\u003cli\u003eBMW 335is\u003c\/li\u003e\n\u003cli\u003eBMW 535\u003c\/li\u003e\n\u003cli\u003eBMW Z4\u003c\/li\u003e\n\u003cli\u003eBMW X6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eN54 Engine had two versions of computers managing it, MSD80 and MSD81\u003c\/p\u003e\n\u003cp\u003eOther names of engine computers are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDME - \u003cstrong\u003eD\u003c\/strong\u003eigital \u003cstrong\u003eM\u003c\/strong\u003eotor \u003cstrong\u003eE\u003c\/strong\u003electronics\u003c\/li\u003e\n\u003cli\u003eECU - \u003cstrong\u003eE\u003c\/strong\u003electronic \u003cstrong\u003eC\u003c\/strong\u003eontrol \u003cstrong\u003eU\u003c\/strong\u003enit\u003c\/li\u003e\n\u003cli\u003eECM - \u003cstrong\u003eE\u003c\/strong\u003electronic \u003cstrong\u003eC\u003c\/strong\u003eontrol \u003cstrong\u003eM\u003c\/strong\u003eodule\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt's all the same, We prefer to call it DME.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eProblem Description\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eMSD80 has potential problems that are likely to happen:\u003c\/p\u003e\n\u003ch3\u003e1) The first problem is MOSFET failure\u003c\/h3\u003e\n\u003cp\u003eMOSFETs are electronic components on the MSD80 board, that do fail due to age or high performance,\u003c\/p\u003e\n\u003cp\u003eand when one of them fails, it causes the car to misfire hard and go into limp mode\u003c\/p\u003e\n\u003cp\u003eWith bad MOSFET, either the first bank is misfiring or the second bank\u003cbr\u003eIn case of bank 1 misfire, there are these errors\/codes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e29CD Combustion Misfire, Cylinder 1\u003c\/li\u003e\n\u003cli\u003e29CE Combustion Misfire, Cylinder 2\u003c\/li\u003e\n\u003cli\u003e29CF Combustion Misfire, Cylinder 3\u003c\/li\u003e\n\u003cli\u003e30BA DME digital motor electronics, internal failure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003eIn the case of Bank 2 then there are these errors\/codes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e29D0 Combustion Misfire, Cylinder 4\u003c\/li\u003e\n\u003cli\u003e29D1 Combustion Misfire, Cylinder 5\u003c\/li\u003e\n\u003cli\u003e29D2 Combustion Misfire, Cylinder 6\u003c\/li\u003e\n\u003cli\u003e30BB DME digital motor electronics, internal failure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\n\u003cbr\u003eVery often, along with MOSFET, there is a burnt ignition coil, We strongly recommend replacing it\u003cbr\u003e\u003cbr\u003e2) PSUs on board (Power Supply Units, one per bank)\n\u003c\/h4\u003e\n\u003cp\u003eEach PSU feeds the electrical components of a specific bank.\u003c\/p\u003e\n\u003cp\u003ePSU failure is rarer than a MOSFET problem, but when it happens you get the same symptoms as in the case of failed MOSFET, with the same error\/codes.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSolution\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe updated version of the engine computer, MSD81 has no weak points and comes with stronger MOSFETs and PSUs.\u003c\/p\u003e\n\u003cp\u003eWe offer programming, aka matching MSD81 instead of MSD80 to your CAS module, i.e. basically replacing MSD80 with MSD81.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHow it works\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTo do this upgrade, You will need to send us: \u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eCAS module\u003c\/li\u003e\n\u003cli\u003e1 working Keyfob (without metal key)\u003c\/li\u003e\n\u003cli\u003eDonor MSD81\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIf you want us to code injector numbers to a replacement DME MSD81 then Injector numbers too.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eIf you don't know how to read injector numbers that is not a problem, \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eIf your original DME MSD80 is responsive and you can read codes, you can read Injector numbers with tools like INPA or BimmerGeeks ProTool.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eYou can also send the original DME and we will read injector numbers from it.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eIn case if DME MSD80 is not responsive, you can read injector numbers on the injectors themselves.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThese are the numbers we need:\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e \u003ch3\u003eCAS3 Module\u003c\/h3\u003e\nCAS3 module looks like this: \u003ch3\u003e\nYou can find CAS3 module at this location, It's underneath steering wheel, on top of pedals:\n\u003c\/h3\u003e","brand":"BimECU","offers":[{"title":"BimECU-supplied MSD81","offer_id":44347722006708,"sku":null,"price":650.0,"currency_code":"USD","in_stock":true},{"title":"Customer-supplied MSD81","offer_id":44347722039476,"sku":null,"price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/8003\/7812\/files\/bimecu-msd80-to-msd81upgrade-1.jpg?v=1788701882","url":"https:\/\/tunedbytd.shop\/products\/msd80-to-msd81-upgrade","provider":"Tuning Dynamics","version":"1.0","type":"link"}