Bmw ecu mosfet. Mosfet replacement on a BMW Electro.
Bmw ecu mosfet Nov 3, 2025 · BMW DME MOSFET KIT UPGRADE REPAIR KIT FOR MSD80 N54 335i 135i 535i mosfets $25. A = IGBT for ignition coils B = mosfets for injectors If you need to replace 🔴 #Microsoldering #soldering #repair #Microsoldering #soldering #repair MSD80 DME from N54 powered cars ECU, I See YOU Mosfet replacement on a BMW Electronic Control Unit. 🔴#Microsoldering #soldering #repair#Microsoldering #soldering #repairMSD80 DME from N54 powered carsECU, I See YOU II Mosfet replacement on a BMW Electro One of the most common failures of N54 powered BMWs is MSD80 (DME aka ECU). We provide expert repairs and professional coding services. At Bimmerforums, you will find technical how-to information maintenance specifics audio advice wheel and tire combinations and model specific details not found anywhere else. BMW 135i 2007-2013 (E82). (Idle Misfires that seem to be due to the 5 series being A/T, Sensor wipers don't work, headlights May 5, 2025 · This BMW Siemens MSD80 DME (Digital Motor Electronics) unit used in many BMW vehicles from 2006 to 2013 years with N54 or N54T 6 cylinder turbo engine. " https://www. Jan 2, 2025 · Hi all, I have an MSD81 from an 09 535ix in my 07 335xi. The Repair Kit contains 6 MOSFET transistors IRF644NS (equivalent original W644B transistors). Apr 9, 2021 · Buy Boost Monkey MSD80 DME MOSFET UPGRADE REPAIR KIT for E90 E92 E82 N54 135i 335i 535i MSD80: MOSFET - Amazon. Plugged in, all injector fault codes disappeared and left just 1 coil pack issue on cylinder 1. The engine types are M54B22, M54B25 and M54B30. . Fast turnaround, expert diagnostics, and guaranteed results. This is when you should upgrade your MSD80 to MSD81. 2. Please note that the kit fits to N54 or N54T 6 cylinder turbo engine Jul 7, 2023 · Might be a stupid question, MOSFET E93?All times are GMT -5. Sep 3, 2019 · Who is a reliable source to send out an MSD80 n54 ECU to get the MOSFET chips replaced (before they fail)? Anyone had good success with a particular person who is handy with this (I would rather have someone who has experience on the n54 ECU's rather than taking it to my local TV repair shop guy with the new MOSFETs). Our professionals are here to help make sure you find the answers you need to your questions and our community is here to help other brainstorm Another BMW ECU MOSFET Repair 📞 843-742-0337 #jefftronics #electronicsrepair #electronicsrepairshop #electronicsrepairs #jefftronicsrepairs #conwaysc I have a BMW F10 Ecu here with a shorted 8201AG Mosfet. Each two or three (of one bank; N43/N53 series engine) transistors have a common current measurement resistor (in green color, in the image below). Removed fuse box and traced wires and finally found PIN 13of44 is corroded off on ECU. Middle connection of the three has constant continuity. BMW DME ECU Call today! 800-737-0915 Jul 9, 2022 · Bimmerforums is the preferred online BMW Forum and community for BMW owners. After realizing that we had a failed DME on my 335i, and then the mosfet repair not working, it was time for the MSD81 upgrade! Today, I show you how to find a MSD81 engine computer on a budget Repair kit (6 transistors MOSFET IRF644NS ) for repair an BMW Siemens DME MSD80 / MSD81 ECU (Engine Control Unit) The BMW Siemens MSD80 DME (Digital Motor Electronics) unit used in many BMW vehicles from 2006 to 2013 years with N54 or N54T 6 cylinder turbo engine. This Service is useful if your Original DME (ECU) is defective with a Injector Misfiring issue. 00 Free shipping Today we're trying to fix the 30BB fault code on my 335i by replacing the mosfets on my MSD80 DME with the upgraded units. nz more BMW DME Repair DME Electronic Control Module Repair Module Experts provides a full line of BMW DME Repair. Which mosfets for MSD80 ecu All times are GMT -5. This is a common failure on 335i's Dec 22, 2022 · First, eliminate the items that don't fit the sudden onset of symptoms - very unlikely that multiple spark plugs, coils or injectors are going to fail simultaneously. We specialize in BMW, Mini, Mercedes-Benz, Land Rover, & Jaguar vehicles but offer Jan 31, 2025 · Either way, the ECU Pro can help you resolve your issues. Find many great new & used options and get the best deals for 2007 Bmw 335i Ecu With Upgraded Mosfet at the best online prices at eBay! Free shipping for many products! BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > ECU mosfet connection problem Thread Tools Search this Thread 11-12-2021, 05:25 PM # 1 Recoiletiquette Private 0 Rep 57 Posts Drives: BMW 335I Join Date: May 2020 Location: Utah iTrader: (0) One of the most common failures on N54s is the MSD80 (ECU) failing. Codes like 30BB and other misfire codes. BMW has relocated the updated MOSFET’s in a design change on the MSD81 making them much less prone to MOSFET’s failures. The time now is 11:19 PM. BMW E90 2008 - Misfire on cylinder 2All times are GMT -5. With the MSD81, the MOSFETs had a design c BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > ECU mosfet connection problem Thread Tools Search this Thread 11-12-2021, 05:25 PM # 1 Recoiletiquette Private 0 Rep 57 Posts Drives: BMW 335I Join Date: May 2020 Location: Utah iTrader: (0) Technical note: high-power MOSFET actually consists of 4 . Its replacement can consequently fix the faults associated with 30BA, 30BB codes etc. MSD85 DME was used for management of N63 engines and is common in models F01, F02, F03, F07, F12, and F13. I've uploaded many times previously lol. com/watch?v=x4xMjfNPHoA --~-- BMW N54 335i 535i 135i Msd80 E92 E90. Replaced that and it was no issues. Our repair service uses upgraded MOSFET Transistors. Do you own a BMW with a 6 cylinder turbo engine that is having random cylinder misfires? You most likely have a failing DME (ECU/ECM). Here’s an overview of common ECU problems in BMWs and steps to diagnose them: Common ECU Problems Software Glitches Symptoms This is a DME programming service for BMW with Engines N52 N54 N55 S55 N63 S63 N20 N26. You can also send us your injectors flowing rate numbers and we can code them in before sending your items back to you. Most services say that a broken BMW X5 (G05) 2019-2025 Service & Repair Manual / Engine / Engine Electrical System / Electronic Switching On Or Control Unit / Replacing Control Unit (DME) Mar 1, 2020 · Thanks for the info, I looked at your thread and watched couple of youtube videos, it looks like the device either modifies by pass ECU throttle mapping, so that make me wonder if there some software that can directly modify ECU throttle mapping without needing this device, at $300 it is quite pricey though. Oct 28, 2025 · Each injector (from 6 injectors total) has a single MOSFET (transistor) driver. Restore ECU functionality and ensure reliable performance for your vehicle. co. Had stuttering and weird DME codes and issues. N54 BMW engines with the MSD80 DME software can suffer fuel injector MOSFET driver failure, leading to one of the injectors ceasing to deliver fuel, resulting in engine misfire and rough operation. This will throw the fault codes 30BA (Injector Circuit Failure 1-3 or DME Internal Fault) or 30BB (Injector Circuit Failure 4-6 or DME Internal Fault). It manages critical engine functions such as ignition, fueling, and sensor inputs. I finally took it into a shop to have them figure out what the hell was wrong. The time now is 11:11 PM. bmw ecu mosfet changebmw dme msd80 ecu rapiermarkos car electrician Jul 3, 2018 · I have a BMW F10 Ecu here with a shorted 8201AG Mosfet. 30BA 30BB - DME internal fault Repair and improvement kit for BMW Siemens DME MSD80 / MSD81 injection computer: OEM IRF W644B transistors. Turns out I had a bad MOSFET for Injector #5. There is NO PROGRAMMING REQUIRED and it fixes the accompanying codes: · 30BA - DME Digital Motor Electronics, Internal Failure · 30BB - DME Digital Motor Electronics, Internal Failure · 29D0 - Cylinder 4 Misfire · 29D1 - Cylinder Please watch: "how to test a mosfet with digital multimeter on a bmw dme with msd80 ecu. 2013 x3 - Answered by a verified BMW Mechanic ECU, I See YOU Mosfet replacement on a BMW MSD80 DME from N54. All 6 Mosfets will be replaced with our upgraded versions. BMW ECU MOSFET TESTING COIL IGNITION DRIVER ️ ️ ️ D&A AUTO THETFORD LTD UNIT 4 RUTHERFORD WAY IP24 1HA THETFORD NORFOLK 📲 07933144133 Please watch: "how to test a mosfet with digital multimeter on a bmw dme with msd80 ecu. So unless you want to throw £4k+ at repairs, do NOT fit Amazon/eBay injectors. So I've been having issues with my car on and off for a year. I swap the factory N54 MSD80 DME, which is known for IGBT or mosfet coil driver failures, for a used MSD81 ECU from a junkyard 535i, program it, and code the fuel injectors with INPA. reviveautoworks. Can anyone give me an Equivalent? On our website your can find a detailed connection diagram for control unit Siemens MSD80 irom TC1796 ssm BMW Is your BMW running rough, with fan or alternator communication issues? Our MSD85 BSD failure repair service restores full BSD line functionality, eliminating related fault codes. Jan 28, 2025 · The award-winning BMW N54 engine is a twin-turbocharged straight-six petrol engine and was the brand's first turbocharged engine since the discontinuation of the BMW M106 in 1986. We do not offer tuning for emission delete, we do not disable catalytic converter or secondary air DME and ECU cloning service for BMW E70 X5M with MSD85 DME and S63 engine. As a key component in select N54-powered BMW models, the MSD80 ECU is partly responsible for these positive attributes. MSD85, being a specialized Electronic Control Unit utilized in certain BMW models, adds an extra layer of intricacy to the process. This will cause an injector to stop delivering fuel and an engine misfire to occur. About this item REPLACES COMMONLY FAILED INJECTOR MOSFETS 29D2 - Cylinder 6 Misfire BMW 335i 2007-2010 (E93) 29CF - Cylinder 3 Misfire Even if you're tuned, These upgraded mosfets won't fail. At load, the car starts to have this huge stutter and check engine comes on. You only need to send us your DME module or CAS module with one of your keyfobs. We are here to help! This repair service affects the N54 or N54T 6 cylinder turbo engines commonly used in many 2006-2013 BMW vehicles. We replace all 6 Mosfets with our upgraded versions. Sep 12, 2024 · « Previous Thread Next Thread » N54 - MSD80 ECU repair Jun 30, 2021 · 2008 BMW 328i E93 N52 ManualTrans 116K Miles Prod Date 11/2007 ECU (7 581 123) Siemens VDO OK, had a bunch of problems, had low voltage on 5 fuses related to the K6300 relay. MOSFET transistors of the injectors management are used (lately replaced with IGBT transistors). BMW N54 DME MOSFET REPAIR / 30BA 30BBTHE PROBLEM:Codes 30BA / 30BB stored in the DME (Digital Motor Electronics)Internal fault codes storedEngine misfire on one or more cylindersNo pulse signal to one or more injectorsThe main reason for this type of DME failure is due faulty ignition coils. Installation is Plug & Play with no additional dealer programming required. The Upgrade Kit contains 6 MOSFET transistors FDB 14N30 (more powerful then original W644B transistors !). To do this i use the replacement procedure use by BMW, select DME and execute the operation but the engine didnt run & stay with "DME data record ; Variant monitoring" So i swap the FME with the new key, engine start but i dont have the right VIN/KM and nothing work. BMW S63 with MSD85 Performance ECU tuning software. BMW uses mostly Bosch & Siemens Engine Control Modules also known as a DME. I used it to replace my MOSFET dead MSD80. Question on ECU DME - is my MSD81 fried?? Mosfet issue. DME Cloning and ECU Cloning Service for BMW E70 X5 with N52, N55, N62, N63, S63 engines using Siemens MSV80, MSD85, Bosch ME9. Cant get same one here in UK. You will have the details about which transistor correspond to which cylinder. BMW models with Turbocharged N54 engines and MSD80 DME can develop fuel injector MOSFET driver failure. As we see, they have already given indicated the transistors A to F. Whether you want to revive your BMW N54 engine by repairing a failing MSD80 ECU or want to upgrade to a newer MSD81 ECU, The ECU Pro should be your first port of call. Despite its Our repair service uses upgraded MOSFET Transistors, which prevents the likely hood of this happening again. This is a quick video to show how to diagnose the MOSFET's. This service is for matching donor MSD81 to your car. TRUST THE BOOST MONKEY! For BMW N54 DME MSD80 Repair Kit: MOSFET Transistors F644NS 29D1 - Cylinder 5 Misfire A repair videos are sent you by email. In the past MHD would write the original VIN to the DME even if you've overwritten it in « Previous Thread Next Thread » DME clone and mosfet replacement Injectors or MOSFET??All times are GMT -5. Contact us at www. This part comprises of 6 MOSFET transistors, with one for each injector to activate fuel injection. I was like ok lets install stage 1 aggressive mode Mar 24, 2023 · Ended up replacing the ECU/DME - upgraded to an MSD81 at the same time. Here's a link to the Jan 22, 2025 · The ECU are correctly connecty and responding but cant code the EWS. Easiest place to check. The oil filter housing leak is very Mar 13, 2018 · MSD80 to MSD81 DME QuestionsAll times are GMT -5. How to remove a BMW MSD85 DME from a X5 and X6 with CAS3 system 0:00 X5 and X6 MSD85 DME Repair - parts required for a repair. Nov 29, 2016 · Repairing a 'fried' N54 MSD80 DMEAll times are GMT -5. At first: the oscillogram – let’s see, did the Siemens + BMW AG has taken into account the problems, which are typical for High energy ignition system. youtube. The time now is 06:44 AM. ECU programming and ECU Repairing for MSD85 is a highly complex and challenging task that necessitates expert-level expertise in the field of automotive electronics and engine management systems. While also owning a brick and mortar automotive service and repair facility, we realized we could help many other people around the world by offering our services online. We will program a donor DME which you provide and match it to your VIN. Turn around is the Bad coil #3 cylinder, blew mosfet in ECU, had ECU re manufactured and programmed, now cranks but doesn't fire. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > ECU mosfet connection problem Thread Tools Search this Thread 11-12-2021, 05:25 PM # 1 Recoiletiquette Private 1 Rep 57 Posts Drives: BMW 335I Join Date: May 2020 Location: Utah iTrader: (0) With our Upgrade kit for BMW Siemens DME MSD80 / MSD81 unit you can definitely fix the problem with your BMW ECU unit yourself ! The Upgrade Kit For BMW N54 Siemens MSD80 /MSD81 DME unit contains 6 MOSFET transistors FDB 14N30 (more powerful then original W644B transistors !). These ECUs can be found on petrol engines from the 120i to 335i models and more. 2, MEVD17. This probl Jul 13, 2025 · Each injector (from 6 injectors total) has a single MOSFET (transistor) driver. Will work in the following BMW models: X5 E70, X5 M, SUV, S63, AUTO, USA, (GY03) - (07/2008 — 06/2013) X6 E71, X6 M, SAC, S63, AUTO, USA, (GZ03) - (07/2008 — 06/2014) Gains: 62WHP/75WTQ at the wheels on our Mainline ProHub 5000 dynamometer. Usually MOSFETs inside the DME fail on load. Replaced all 6 with Eldors and it's back to normal. 4L Turbo. How to test and replace mosfets. This service will transfer VIN, immobilizer, software and coding (including injector coding) to the replacement DME. The time now is . When looking to upgrade to the MSD81 Mosfet for the N54 DME, you first need to remove the MSD80 Mosfet's. The injectors were index 1. Make sure that you replace all of the affected coils prior to installing the freshly repaired DME, or Apr 1, 2025 · ECU Saver was founded to provide customers with automotive repair solutions much cheaper than their average repair shop or car dealership. The time now is 07:25 AM. Usually it’s Injector 1,2 and 3 or Injector 4,5 and 6. The early MSD80 equipped cars suffer a problem where the transistors that fire the injectors how to test a mosfet with digital multimeter on an N43 engined 3 series that had a persistent misfire that a new coil, spark plug and fuel injector fitted by a previous garage DID NOT cure the Mar 30, 2017 · Here's a copy and paste from the description section on YouTube regarding mosfet details Published on Mar 30, 2017 Quick video diagnosing my MSD80 DME out of my 2007 BMW 335i. Apr 19, 2017 · Boost leaks can and will cause extra wear on the turbos as the ECU attempts to compensate for the loss of boost by working the turbos harder. Can anyone give me an Equivalent? Feb 11, 2021 · Hi, If somebody need it, here is a picture of the mosfets and IGBT transistors on the MSD80 DME module of a four cylinder engine (N43). Repair and improvement kit for BMW Siemens DME MSD80 / MSD81 injection computer: OEM IRF W644B transistors. BMW models with Turbocharged N54 engines and MSD80 DME Software can develop fuel injector MOSFET driver failure. This is a common problem with the n54 dme, where the mosfet gets stuck in the "on" position. Siemens MS43 is a very common ECU (Engine Control Unit) in BMW E46, E39 and E53. The replacement transistors will have better, more powerful characteristics, ensuring lasting repair. SIA Electronics offers repair services for all BMW DME part numbers. In addition, […] Replacing the mosfets using a hot air rework station. 20 MOSFET crystals of lower power, which are inserted in one case. Whether or not you are looking for a Remanufactured BMW DME DME tomorrow or looking to send yours into be rebuilt we have your solution. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Fired up ECU with weird mosfet name Thread Tools Search this Thread Used MSD85 DME programming service for the following years / models / series / engines: 2007-2014 / X5 X6 X5M X6M / E70 E71 / N63 S63 V8 4. The VIN and ISN were copied, but I think the rest of the coding is still for the donor car. i boight used dme and replaced all 6 mosfets and I got all 6 new injectors index 12. This ECU is used in many BMW 2006-2013 vehicles with N54 or N54T 6 cylinder turbo engine. This is a much more approachable to solution than having to replace your ECM with a new unit from BMW. Oil System: Besides the aforementioned leaking issues, these engines are sometimes riddled with sludging issues because of BMW’s suggested oil change intervals. May 9, 2020 · Hello BMW enthusiasts! Im experiencing another bmw fault, so it started happening after i installed COBB stage 1 sport map,gained noticeable power and then under power injection coil cyl 4 stopped working. Oct 22, 2016 · I have bmw 335i 2007 and I put mhd stage1 atock map and my dme mosfets fried together with injectors and this happened on the very first test drive after the installation of mhd tune. BMW models with Turbocharged N54 engines and MSD80 DME […] This will show you how to check a Siemens MSD80 ECU if you have a constant misfire on one or more cylinders. BMW MSD80 DME Bad Mosfet Test Today I test my DME with a cheap harbor freight Volt meter tester Simple test by testing continuity on Mosfets. The early MSD80-equipped cars like E90 E92 E89 135i 335i 535i X6 suffer a problem where the transistors that fire Basic Information BMW's one of the best engines, model N54 was used in BMW 135 BMW 335 BMW 335is BMW 535 BMW Z4 BMW X6 N54 Engine had two versions of computers managing it, MSD80 and MSD81 Other names of engine computers are: DME - Digital Motor Electronics ECU - Electronic Control Unit ECM - Electronic Control Modul This repair service will replace all fuel injector MOSFET transistors. Utilizing Repair kit (6 transistors MOSFET IRF644NS ) for repair an BMW Siemens DME MSD80 / MSD81 ECU (Engine Control Unit) The BMW Siemens MSD80 DME (Digital Motor Electronics) unit used in many BMW vehicles from 2006 to 2013 years with N54 or N54T 6 cylinder turbo engine. 0:30 How to remove BMW X5 and Dec 6, 2015 · Discussion on potential causes of DME Mosfet failure in BMW vehicles and solutions shared by forum members. If any of these cells are damaged (and damaged in such a way, that the connection is broken, not creating the short-circuit), the good cells continue to work. On the M52 version of the motor, the ground for each set of three coils is common, and a loose / corroded ground strap there can cause a misfire on the three cylinders. 30bb error code. They're fake, dangerous and can do massive damage. Changed also spark plugs and new coils. BMW DME Repair BMW like Mercedes is know for having VIN locked DMEs and DMEs No views 2 minutes ago Link showing how to replace the mosfets to fix Cylinder Misfire N54 Engine Error Code 30BA or 30BB MOSFET: • BMW DME ECU Cylinder Misfire N54 Engi more BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > N54 - MSD80 ECU repair Thread Tools Search this Thread 09-12-2024, 04:33 AM # 1 taz28 Registered 0 Rep 3 Posts Drives: BMW 335I Touring Join Date: Apr 2015 Location: Yorkshire iTrader: (0) The MOSFET transistors that drive the injectors are known to fail and this MSD81 gets around that issue. This BMW Siemens MSD80 DME (Digital Motor Electronics) unit used in many BMW vehicles from 2006 to 2013 years with N54 or N54T 6 cylinder turbo engine. Low melt solder goodness. This happens because the MOSFETs in the ECU stop working. Despite its reliability, certain issues can arise, affecting the vehicle’s overall performance. Jan 11, 2024 · BMW’s Electronic Control Unit (ECU) serves as the brain of the vehicle, managing various systems such as engine performance, fuel efficiency, and emission controls. com FREE DELIVERY possible on eligible purchases In today's video, we will show you how to replace the MOSFETs on your ECU or DME. The time now is 11:09 PM. As […] Enhance and maintain the performance of your 2010-2013 BMW E70 X5M with DUDMD Tuning’s specialized products and services, tailored for the S63 engine and MSD85 DME. This is a BMW repair service for any E-Series with N54 engines equipped with DME MSD80. . Stop dealing with those 30BA or 30BB faults and replacing those burnt mosfet’s, let us upgrade you out of your old MSD80 and into a MSD81 and be done with it. Trapped Voices In This Wire - Let's Listen To Them! Nissan Pathfinder Injector Driver Failure and Repair! Forum The Garage Airbag, ChipTuning, Dash, ECU, IMMO, Locksmith, Radio, SatNav ChipTuning BMW SIEMENS MSD80 MOSFET REPAIR? BMW 335i MSD80 ECU with a bad cylinder 5 mosfet. " • how to test a mosfet with digital multimet -~- bmw active cruise stopped working and the fault Jan 30, 2025 · Discover common BMW ECU problems, their symptoms, causes, and effective solutions to keep your vehicle running smoothly. Available to all E60 525i , 528i, 530i xi, E90 325i, 328i 330i xi, and Z4 with the N52 and either an MSV70 or MSV80 DME. The The automotive repair company approached me with a question: “which MOSFET corresponds to which injector”? And sent me this picture: The picture shows the bottom part of the below (smallest) PCB of the MSD81 management module. My cylinder 4 mosfet was damaged so I decided to u Aug 21, 2012 · « Previous Thread Next Thread » Repairing a 'fried' N54 MSD80 DME We can quickly repair 2007 - 2016 BMW Siemens MSD80 DME Misfires that are created by a failed MSD80 DME in E82, E90, E91, E92, E93, E60, and E89 cars. In this video I show you how to replace the transistors better known as MOSFETs on your ECU or DME. sennjd och ykxx hvoc fovd bhkt yvwgola iihlkt cugld msztu dpzo knkvgq gfb ymglr lhcw