The shaft typically wears a "flat" spot on the bearing surface causing the adjustment range fault due to measured current load. Bentley technical editors removing Valvetronic motor on N51 engine. We recommend replacement of the eccentric shaft regardless since the valve cover is coming out anyways and to get rid of any variables during the repair. BMW Valvetronic eccentric shaft failure codesOk this is going to be a long post with a lot of pictures,,,,N55 check engine light on,,,,faults were valvetronic motor and valvetronic won't reach its limit,,,,performed the test plan,,,operated the valvetronic motor test which passed the test twice,,,but when I started the engine it. P1017 Valvetronic Eccentric Shaft Sensor Plausibility. defaults to minimum lift position and will not run adaptation. BMW N55 valvetronic servomotor and eccentric shaft issues. With 1 being just replace valvetronic, and the 2 being replace valvetronic and eccentric shaft in a pair. engine will not start unless manually move eccentric shaft. How to replace Bmw N55 valvetronic eccentric shaft and motor. At least if you're ever going to replace it due to wear then you'd need to be looking at replacing the crank and camshafts too as they are all under 1000x more load and wear than the eccentric shaft will be. including mechanical and electrical failures, for parts purchased on Amazon within the last 30 days. Shares: 292. Replace your Valvetronic Eccentric Shaft and restore performance. Maximum drivetrain output not available. Whether you replace the squirter or replace it for cleaning, you’ll need yet another one-time use bolt (BMW Asa-Bolt (M6X30-8. It fails and all 3 tries of actuating 100 times fail- It doesn't even make it to 1. The parts and quotes: 11-37-7-603-979 -- VAVLETRONIC MOTOR $ 430. I get another actuator and re-assemble. Your engine is currently operating as a regular engine with a throttle. Several weeks ago I unlocked the door on my 2011 335XI, completely stock N55 and noticed a terrible clicking/ binding noise coming from the motor. 00 Regular price $ 279. I take everything apart again and do not see any damage, the shaft moves freely and the motor turns freely. Valvetronic Eccentric Shaft wear can cause a loss of performance if it's not taken care of sooner then later. Do the cheapest stuff first lol. For the Eccentric Shaft Actuator (Valvetronic motor) seal I had 11377516302, might be an early/late N52 difference. The part number of the ISM is 12 63(###) ###-####/p>. P0340 Intake Camshaft Position Sensor 2006 And Newer BMW Cam Sensor P0012 P0015 Code Fix Loss Of Power Rough Idle INTAKE CAMSHAFT POSITION SENSOR REPLACEMENT LOCATION BMW N51 N52 N53 N54 N55 ENGINE How to Replace Intake Cam Sensor 01-05 BMW 325Xi BMW E90 E91 E92 E93 E30 16 BMW 3 Series Sedan with All-Wheel Drive. Oh no another intake camshaft bearing damaged,,,,this job all started with a check engine light on a N55 and faults eccentric motor ,,,after replacement we had more problems and new faults,,,we had intake camshaft and turbo boost issue,,,,the car ran just fine no limp. I had a little valvetronic malfunction. NO help. Here are all the new eccentric shaft levers. There would be a different code if the shaft is worn out. The eccentric shaft sensor is known to fail and can be a costly repair at the dealer. Release the button and wait for the engine to restart. On the N55 the valvetronic motor should be replaced with the eccentric shaft, they have a wear pattern and is clearly stated in the test plan. Page 51 The Valvetronic III servomotor contains a sensor for determining the position of the motor and the eccentric shaft. Whether you replace the squirter or replace it for cleaning, you’ll need yet another one-time use bolt (BMW Asa-Bolt (M6X30-8. P10E7 - Valvetronic Overload Protection Output Stage Overload. The physical placement and function of the components are as follows: 1 The eccentric shaft is set slightly above and off to the side of the camshaft. ago This. Eccentric Shaft. Operation of BMW valveTronic system. The N55 engine contains an eccentric shaft that controls the variable valve lift of the intake valves. Car had issue with 3 and 4 misfire. Table of Contents show. 26 may 2022. 2K subscribers Subscribe 130K views 4 years ago ️I'm going to show you where the Eccentric Shaft. Oct 4, 2018 · Car wouldn't start. When the seal to the valve cover fails oil can end up in the sensor itself and ruin the sensor (an unnecessary $300 expense). Oct 5, 2020 · This code typically relates to a failure of the eccentric shaft position sensor to report the movement of the shaft in any direction. This system is known as Valvetronic There are numerous . When the seal to the valve cover fails oil can end up in the sensor itself and ruin the sensor (an unnecessary $300 expense). Eccentric Shaft Replacement Kit. The ABS pump, which is responsible for safe braking pressure and prevents your wheels from locking from excessive braking. Replace your Valvetronic Eccentric Shaft and restore performance. SA said the actuator has to be replaced. I noticed the bolt that holds down the squirter was not a banjo bolt. Bmw valvetronic shaft eccentric failure motor valve 135i removal coverEccentric shaft sensor new fits bmw bmw e90 318i 320i,3' e90 lci 2007 Eccentric shaft 328i e90 n52 e93 e92 valvetronic 328xi ecsBmw valvetronic n55 motor replacement. Feb 25, 2019 · You replied to a facebook post and you just stated again that the one main bearing side looks like some light wear post failure. Injector removal tool-https://www. Probably a age related. '13 x1 35i with like 57k mi. With a screwdriver push the eccentric shaft gear as far back anti clockwise as it can go. Nov 1, 2022 · The eccentric shaft sensor is responsible for controlling valvetronic timing, and has been known to be a common issue. The most common failures I have seen are bad eccentric shaft sensors. Home; Products;. There are some steps you can do to try and figure out the failure you are having but it will involve some disassembly. Although BMW have released a bulletin on the N55 saying if fix scenario 1 does not work then try fix scenario 2. The parts and quotes: 11-37-7-603-979 -- VAVLETRONIC MOTOR $ 430. 16 /mo with Free Shipping on orders $59 and up Availability: In Stock Est. Bmw valve cover leakBmw oil leakBMW 328i eccentric s. came in with no start, multiple valvetronic codes, found stuck in minimum lift position. 2 The intermediate levers connect the camshaft and the eccentric shaft. Likes: 584. The eccentric shaft is actuated by the Valvetronic motor and in return controls variable intake valve lift. That said, I've got a 1-Series with an N55 that had the characteristic rattle noise for a month and I finally replaced everything, which of course fixed it. Shaft failure causes the unnecessary shutdowns and leads to heavy production loss. Had issue with my N55. Part Number Description Quantity. This system is known as Valvetronic. I downloaded Ista + to do the valvetronic relearn. 7 degrees. I was so amazed that oil hadn't gotten in there and. Search: N55 Valvetronic Relearn. First I'll start by saying this isn't my car. Now those are pretty much all symptoms of car going rich. Insert the servor motor and connect its 2 pin plug. I,ll put pics up tomorrow if i remember,but for those who say the N55 has no problems,think again,its a BMW :? Steve. If that oil squirter clogs, your engine is toast. The run in ,would show a bad eccentric cam ,put it that way and you can't even get to that point. Then it did the lift operation. ️I'm going to show you where the Eccentric Shaft Position Sensor is on your BMW engine and the most common cause of failure. Dual Vanos. MODS - Can you move this thread to: N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning ?. On the N55, It's supposed to default to max lift position when the car is off so that the car can be started. The eccentric shaft position sensor is built into the motor itself. Request a master technician to diagnose your vehicle not a 19 year old. On previous di read more. You could start by inspecting the electrical connector itself to make sure there is no oil seeping through. With the N51, N52K, N52T and N55 engine SITUATION A rattling noise can be heard from the engine compartment; the engine loses power; and the Service Engine Soon lamp is illuminated. The GENUINE part, as sold new by the dealer. See the article you commented on for signs of failure. 2) series engines. I downloaded Ista + to do the valvetronic relearn. Give The Pelican Parts parts specialists a call at 1-888-280-7799. What is N55 Valvetronic Relearn. Ok this is going to be a long post with a lot of pictures,,,,N55 check engine light on,,,,faults were valvetronic motor and valvetronic won’t reach its limit,,,,performed the test plan,,,operated the valvetronic motor test which passed the test twice,,,but when. ASE and BMW Master Certified Technician 02-08-2017, 12:44 AM #3 defurr Member Join Date Dec 2016. The eccentric shaft and rockers wear over time causing the vehicle to develop either poor running or a misfire. What is the labor hours for replacing a valvetronic actuator and eccentric shaft for a 2013 BMW x5 3. using launch and autologic it will not let me adapt. Typically it involves replacing the valvetronic motor and sometimes the eccentric shaft as well. You should really just replace the Valvetronic motor, but, there is a way to set the eccentric shaft to max lift without needing to even take the valve cover off. Your valvetronic should now be reset! The BMW valvetronic system is a variable valve timing system that is used on BMW engines. Location: CA. It can fail to rotate smoothly and put excess strain on the motor. N54 engine: 335i, 335xi (2009 - 2010), 335is (2011) N55 engine: 335i, 335xi (2011) Transmissions covered (remove, install, external service) Getrag GS6-17BG manual; ZF GS6-37BZ manual. With 1 being just replace valvetronic, and the 2 being replace valvetronic and eccentric shaft in a pair. new bmw n55 single turbo valvetronic engine paul tan s. The ABS pump, which is responsible for safe braking pressure and prevents your wheels from locking from excessive braking. If I’m not mistaken, the motor and eccentric shaft are responsible for idle and cold start functions. Here are all the new eccentric shaft levers. N55, design of valve lift adjustment Index Explanation. Operation of BMW valveTronic system. · N55 intake camshaft bearings. 8) - Genuine BMW 07129904573). I uploaded a quick video here:. Common Fault Codes in F30 BMWs. Eccentric Shaft Sensor (ESS) reads the rotation degree of this shaft. Likes: 584. 3K views 9 months ago In this video I go over how to. Fault codes 2dce 2e0f Running latest I-Level. Part # 11-37-7-589-883 / 11 37 7 589 883 / 11377589883 Fitments Reviews / Q&A Shipping & Returns. A faulty eccentric shaft sensor could possibly be the cause of "no movement identified" though I don't know for sure. Finden Sie Top-Angebote für BMW E46 Relais Ventilsteuerung Valvetronic 7506449 bei eBay. These guys are probably quoting the job like it’s an N55 as they are indy guys and don’t know any better. Shares: 292. This condition will typically produce manifold vacuum values of between about 600 and 690 millibars on all Valvetronic-equipped engines. . (further back in the story, the BMW SA texted me the codes at that time, and BMW wanted to replace all 6 injectors because the information they had of the ISTA codes on 4 of the injectors: 140001 and 140010. If your car has been experiencing difficult starts, low fuel economy, and overall lack of engine power and performance, this component may be to blame. Problems with Valvetronic, but no errors (relating to Valvetronic) stored. The top of the sensor protrudes up through valve cover and is sealed by a rubber gasket. Sounds electrical as well. 00:00 Intro09:02 Header panel, windshield wiper arms & engine brace removal12:17 Valve cover removal including high pressure fuel pump and rails, ignition co. I am new to BMW diagnostics. Oct 25, 2017 · Oh no another intake camshaft bearing damaged,,,,this job all started with a check engine light on a N55 and faults eccentric motor ,,,after replacement we had more problems and new faults,,,we had intake camshaft and turbo boost issue,,,,the car ran just fine no limp mode and plenty of turbo boost. Poor servicing or after market oil filters are often the route cause of valvetronic failure. 8097 posts · Joined 2006. The eccentric shaft is actuated by the Valvetronic motor and in return controls variable intake valve lift. New recommendation to to replace eccentric shaft/oil sprayer (maybe not the exact terms) for like $3800, no longer under warranty. There are no symptoms when going WOT. May 22, 2021 · Best guess is that whatever is going on doesn't just fix itself. What is the labor hours for replacing a valvetronic actuator and eccentric shaft for a 2013 BMW x5 3. The most common failures I have seen are bad eccentric shaft sensors. The eccentric shaft is actuated by the Valvetronic motor and in return controls variable intake valve lift. This will cause increased fuel consumption and a slightly increased throttle lag (time between when you press the accelerator and when the engine responds) Could be something as simple as the Valvetronic motor is not plugged in, or it could be a serious failure of the Valvetronic eccentric shaft. It is unable to move because there is too much resistance on the eccentric shaft particularly on the gear of the shaft and the worm gear of the actuator. · #2 · Jul 18, 2017. After researching my only concern is if they only replace the eccentric shaft actuator or motor. The DME fails due to high amperage caused by binding of the valvetronic motor against the eccentric shaft. You should really just replace the Valvetronic motor, but, there is a way to set the eccentric shaft to max lift without needing to even take the valve cover off. Eccentric Shaft Replacement Kit. Application: BMW N55, N20, N26. Pine Hollow Auto Diagnostics•33K . Van Verenigd Koninkrijk. Fully transferable if bought as. Shares: 292. I’m sorry for the long post but I feel like this information is neccessary to diagnosis. I replaced the valvetronic servo motor (eccentric shaft actuator (valvetronic) motor/sensor is all one unit on the 2012 E70 N55 3. Page 51 The Valvetronic III servomotor contains a sensor for determining the position of the motor and the eccentric shaft. I uploaded a quick video here:. Eccentric shaft is a chunk of metal - usually just the bearings fail. Looks like it happen pretty abruptly for whatever occurred. Variable valve timing Web Site Valvetronic. How to replace Bmw N55 valvetronic eccentric shaft and motor. As�the�S55�engine�is�based�on�the�N55�engine,�75%�of�the�engine�components�were�adopted�from the�N55�production�engine�and�the�other�25%�of�the�engine�components�are�new�developments. What is N55 Valvetronic Relearn. 2K subscribers Subscribe 130K views 4 years ago ️I'm going to show you where the Eccentric Shaft. PRO AMEРИКУ. On the N55, It's supposed to default to max lift position when the car is off so that the car can be started. What causes Valvetronic motor failure? Typical causes could include poor electrical connections, a damaged or defective actuator motor, low system voltages, or a binding/sticking eccentric shaft. Valvetronic Eccentric Shaft wear can cause a loss of performance if it's not taken care of sooner then later. You should really just replace the Valvetronic motor, but, there is a way to set the eccentric shaft to max lift without needing to even take the valve cover off. Part # 11-37-7-589-883 / 11 37 7 589 883 / 11377589883. Mar 27, 2017 · Hello, do you still help other people? I have 2012 x5 witrh n55 turbo engine. My Indy reckons the failure was down to poor quality parts. Always check for service bulletins if a car sets valvetronic system codes, as there have been many programming updates to cure system codes. Took to stealership. eccentric shaft failure is rare. For instance, almost all VANOS faults will cause the engine to a) revert to full throttle control mode, and b), to advance the eccentric shaft to the almost maximum valve lift position. There is information around the failure of the DME due to a failed harness coming from the valve-tronic sensor. It is a big job requiring several special tools! In the meantime, and after the fifth such fault, I pulled the connector from the top of my N55's Valve Cover and hosed it down with contact cleaner. Yes the Valvetronic motor with the eccentric shaft sensor is most likely the cause of the Valvetronic fault. 16 /mo with. Hard starting and rough idle are the hallmark symptoms of a bad eccentric shaft sensor. The current position of the eccentric shaft is sensed by a special position sensor. 99% of these failure appear to be the electric motor failing. Oct 4, 2018 · Car wouldn't start. or as low as $ 105. Finden Sie Top-Angebote für BMW E46 Relais Ventilsteuerung Valvetronic 7506449 bei eBay. New BMW N55 single turbo Valvetronic engine Paul Tan s May 27th, 2009 - BMW s new N55 engine family s 306 horsepower and 400Nm power and torque output figures reminds us of the original moment when BMW first announced it was bringing back forced induction into the BMW engine line up BMW Valvetronic eccentric shaft failure Luxury European. After a little more testing we finally made the conclusion that the valvetronic eccentric shaft had gone bad. Valvetronic Eccentric Shaft wear can cause a loss of performance if it's not taken care of sooner then later. When re-assembled, I do the Valvetronic startup on ISTA-D. It is a big job requiring several special tools! In the meantime, and after the fifth such fault, I pulled the connector from the top of my N55's Valve Cover and hosed it down with contact cleaner. It is responsible for actuating an eccentric shaft that adjusts intake valve lift. Mar 27, 2017 · N55 eccentric shaft,valvetronic motor. It’s FBO (bms intake, downpipe, intercooler, chargepipe) plus a JB4 tuner (modded/tuned for 10kish miles). Operation of BMW valveTronic system. Here's the new eccentric shaft actuator. What does BMW eccentric shaft sensor do? The eccentric shaft sensor measures the rotation of the eccentric shaft that translates into how much valve lift there is. A wide variety of valvetronic options are available to you. Usually, a new seal (o-ring) will stop the leaks but sometimes the valve cover is at fault too. Posted on March 27, 2017 by bmwtechnician. replaced valvetronic motor and tried to run adaptation. Eccentric Shaft Replacement Kit Replace your worn eccentric shaft and restore performance Mfg Part # 11377589883KT ECS Part # ES#4045726 Brand 1194. 4) With F07 removed, place jumper between socket #6 (Red wire), and socket #2 (another Red wire); When replace F07 with jumper in place, DME circuit for VVT Actuator Motor should NOW be powered; with Ignition ON & Engine OFF, Actual Eccentric Shaft Angle should follow Setpoint Angle; AND engine should now start. If there's oil, the sensor is likely bad. The seal for the eccentric shaft sensor is a known spot for oil leaks. The eccentric shaft sensor is responsible for controlling valvetronic timing, and has been known to be a common issue. I've got 2 BMW's, 135i and X3, both with N55, and both have had the eccentric shaft freeze up. What does BMW eccentric shaft sensor do? The eccentric shaft sensor is responsible for controlling valvetronic timing, and has been known to be a common issue. Sep 25, 2019 · E86 wrote: ↑ Mon Sep 21, 2020 11:49 am That all sounds correct Same engine as mine. The eccentric shaft position sensor is used as a feedback for the Valvetronic eccentric camshaft. Oct 4, 2018 · Car wouldn't start. Although BMW have released a bulletin on the N55 saying if fix scenario 1 does not work then try fix scenario 2. Problems with Valvetronic, but no errors (relating to Valvetronic) stored. Looks like it happen pretty abruptly for whatever occurred. Genuine BMW parts have been built to BMW's stringent standards and are the same. Here are all the new eccentric shaft levers. 93 or as low as $ 105. If I’m not mistaken, the motor and eccentric shaft are responsible for idle and cold start functions. The sensor is equipped with two independent angle probes. hk g3 rail
Connect a battery charger and perform a vehicle test. . N55 eccentric shaft failure
Replacing the valvetronic eccentric shaft sensor seal on a BMW 328i N52 without removing the valve cover. I uploaded a quick video here:. It is unable to move because there is too much resistance on the eccentric shaft particularly on the gear of the shaft and the worm gear of the actuator. Likes: 584. Possibly a non-oem part issue as well due to the volt phase fault (or battery). new bmw n55 single turbo valvetronic engine paul tan s. using launch and autologic it will not let me adapt. I downloaded Ista + to do the valvetronic relearn. Table of Contents show. So, I duly ordered all the expensive crap to do that replacement. BMW N55 Valvetronic Fault. Valvetronic engines use an extra set of rocker (intermediate) arms, positioned between the valve stem and the camshaft. Since car has 20k miles, all parts/labor (except eccentric shaft + 3 hours of labor) will be covered under 7/70 warranty. BMW N55 valvetronic servomotor and eccentric shaft issues Hello bavarians. Typically it involves replacing the valvetronic motor and sometimes the eccentric shaft as well. 11 36 8 602 263 VANOS Bolt (ISA screw M7x21) 4* 11 12 7 582 245 Profile. N55 Valvetronic repair and still faulty. Replace your Valvetronic Eccentric Shaft and restore performance. Common Fault Codes in F30 BMWs. PROCEDURE 1. 93 or as low as $ 105. This is a repair video and also I show here the tools required to complete this job. Injector removal tool-https://www. n55 eccentric shaft valvetronic motor bmwtechnician. How to replace Bmw N55 valvetronic eccentric shaft and motor. The eccentric shaft is actuated by the Valvetronic motor and in return controls variable intake valve lift. Source For BMW N20 N55 S55 Engine Valvetronic Actuator Motor 11377603979 7603979 on. The original parts used by BMW to build your car are available as replacement parts under the "Genuine BMW" brand. First I'll start by saying this isn't my car. Like February 4, 2018 at 5:09 pm No you don’t have to remove the eccentric shaft to replace the motor Like Reply says:. Everything went smoothly until I went to replace the oil squirter back onto the servomotor. To turn and fix the eccentric shaft, it’s convenient to use the Valvetronic motor. Please rest assured to wholesale bulk eccentric shaft for GP cone crusher from. There are MULTIPLE uses of the combined term "Valvetronic (VVT)" in Bentley. eccentric shaft. Likes: 584. So my valvetronic servomotor went out and spent today replacing it. Parts i needed i. Oct 4, 2018 · Car wouldn't start. · Posted on March 27, 2017 by bmwtechnician. (not sure if this is expected) While i have 8 years of experience. Posted on October 25, 2017 by bmwtechnician. Valvetronic engines use an extra set of rocker (intermediate) arms, positioned between the valve stem and the camshaft. engine will not start unless manually move eccentric shaft. The most common failures I have seen are bad eccentric shaft sensors. Any help would be. 133E10 - Valvetronic system: deactivated , adjustment fault too frequent. When you're wrenching it back, you're working against the force of the spring and depending on where the. Your engine is currently operating as a regular engine with a throttle. 5i I think the - Answered by a verified BMW Mechanic. ago This. My friend has a 2011 135i, with the N55. Bmw 328i engine2013 bmw 3 series 328i xdrive sedan 2. You should really just replace the Valvetronic motor, but, there is a way to set the eccentric shaft to max lift without needing to even take the valve cover off. Ship Date: in 1 Business Day Qty Add to Cart Add to Wish List Track & Share Does this fit my vehicle?. replaced eccentric shaft and valvetronic servomotor inspected cam lobes and secondary levers for excessive wear. No clicking sounds, just the code with the check engine light and when we scanned it showed a frequency of 6 times. This system is known as Valvetronic. Yes the Valvetronic motor with the eccentric shaft sensor is most likely the cause of the Valvetronic fault. On the N55, It's supposed to default to max lift position when the car is off so that the car can be started. We recommend replacement of the eccentric shaft regardless since the valve cover is coming out anyways and to get rid of any variables during the repair. I uploaded a quick video here:. A few months ago the car started to exhibit the typical valvetronic failure symptoms, rough idle, servomotor binding and going nuts when the car wakes up, and eventually drive train malfunction with the expected "adjustment not possible" fault codes. Since the position of the crankshaft directly affects the car's. Here are the codes below. 100% functional parts and labor included on products used for normal use, including mechanical and electrical failures, for parts purchased on Amazon within the last 30 days. If your car has been experiencing difficult starts, low fuel economy, and overall lack of engine power and performance, this component may be to blame. The eccentric shaft sensor is mounted to the cylinder head beneath the valve cover. No clicking sounds, just the code with the check engine light and when we scanned it showed a frequency of 6 times. BMW Valvetronic Eccentric Shaft Failure Symptoms BMW Valvetronic eccentric shaft failure can happen out of the blue. I'd suggest the two optional seals/gaskets you list are required since they're removed or disturbed during removal of the valve cover. A failing crankshaft sensor often leads to concerning performance issues like stalling, sputtering, misfiring, lowered fuel efficiency, and starting problems. As it should when eccentric shaft is on open positions. The sensor itself is a HALL effect sensor. On the N55, It's supposed to default to max lift position when the car is off so that the car can be started. 4) With F07 removed, place jumper between socket #6 (Red wire), and socket #2 (another Red wire); When replace F07 with jumper in place, DME circuit for VVT Actuator Motor should NOW be powered; with Ignition ON & Engine OFF, Actual Eccentric Shaft Angle should follow Setpoint Angle; AND engine should now start. Could this be something like a failed lifter or bad vacuum pump?. Eccentric Shaft Seal. Engine Performance Issues. 140101 and 140110. The eccentric shaft is actuated by the Valvetronic motor and in return controls variable intake valve lift. For example, the servo motor and eccentric shaft is about 1200 dollars in parts. 8) - Genuine BMW 07129904573). Just had sudden failure of the valvetronic eccentric shaft and pump. This is the eccentric shaft actuator sticking out. In layman’s terms it will run like a conventional non valvetronic engine. It started with woodchucker nosies (servomotor hacking) when you unlock the car. If the shaft is moving but getting no reading to the DME, I would suspect eccentric shaft sensor or harness as the culprit. Here are all the new eccentric shaft levers. I get another actuator and re-assemble. replaced eccentric shaft and valvetronic servomotor inspected cam lobes and secondary levers for excessive wear. Had issue with my N55. N55 (2010 - present ) is a new version with the following specs: Power - 320 HP at 5,800-6,000 rpm, 450 Nm of torque at 1,300-4,500 rpm. I´ve see the youtube videos of N55 in X3s having this issue too. Buy OEM Valvetronic Eccentric Shaft Sensor (Engine Variable Timing Eccentric) for BMW:. If you can do the last step then its mechanicaly limited. It is a big job requiring several special tools! In the meantime, and after the fifth such fault, I pulled the connector from the top of my N55's Valve Cover and hosed it down with contact cleaner. P1017 Valvetronic Eccentric Shaft Sensor Plausibility. Bmw N55 Eccentric Shaft Replacement. It’s basically a camshaft on top of the intake camshaft that controls how far open the valves move during one rotation of the intake camshaft. Shares: 292. Firing orders also considered while designing the Crankshaft. The replaced: harness, motor but it wouldnt relearn. I’m sorry for the long post but I feel like this information is neccessary to diagnosis. N55 ENGINE: FC 28A0 OR 101F01 THROTTLE VALVE OPENING ANGLE. BMW N54 vs. The motor itself is pretty reliable and does not fail too often. Note: misfire data is available for N54 (MSD80) and N55 (MEVD17. The top of the sensor protrudes up through valve cover and is sealed by a rubber gasket. "Gently" screw the valvetronic motor in clockwise direction until you feel resistance of the eccentric shaft stop. This should allow you to fully disengage the servomotor gear from the eccentric shaft gear. 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