Any other things to ask for/look at, short of pulling the valve cover? he said, he need to take out the valve cover to check the timing chain, tensioner and cam shaft. Im a little concerned about an underlying knocking. No one knows what this CDA904 code means. VANOS bolts. I appreciate your help. How could I tell the time to open the engine is my best option. Hey guys, I'm really hoping a tech could help me out here. Powertrain Control Module (PCM) failure. For this reason, they've designed the VVT system. December 2013 Bimmerpost Model Selection. Whether the engine is cold or warm, the VANOS faults appear within 15 seconds of startup. Could this be the timing chain? Youre in luck. He did suggest to authorize diagnostics($200) so that the shop can dump car data to BMW headquarter to further evaluate. But it sounds just like that kind of ping. My 7 yr/70k will expire end of this Oct(in a couple of weeks). IMHO, most BMW engine are reliable, it's the stuff surrounding the engine that goes out early and cost an arm and leg to fix. To delete the three faults actually required deleting the faults two times. The boost disable was cleared by itself. if I have used the tool how it is possible no to be on timing ?! Code 130104 Vanos intake control fault camshaft stuck It seems the edges of the link bars are not precision ground surfaces to begin with, it looks like they are made by punching them out of sheet, with most of the surface fairly cleanly sheared off and a thin line along one edge thats rougher. Stored Codes. Typically, this happens due to cold startup. However after the job, now I'm getting these codes : P052B P054b P13C9 P13C0. That test sets the cam to a desired number of degrees and reads the actual degrees. Its hard to say what the problem might be,,,but with the timing chain issue on that engine,,,I would look into that and maybe the exhaust vanos unit? Anyways I spend 20 hours replacing the chain. No, depressing the clutch has no effect at all. BMW offered me 20% off a brand new engine. P052B. Tried new battery. Note: When the ISTA system message displays: Battery voltage only XX.XX V. Please connect The process of deleting the faults and restarting the car was performed many times. I have a 2012 F30 320i auto. I know impulse sending wheels and camshaft they need to be lined up using a special tool. Ok you have a couple of things going on here,,,,that fault code just ignore,,,that fault code is a bogus fault some kind of software bug,,,,,ok you start stop function not working I dont know without looking at the car,,,,now the car shutting off while driving sound like the fuel pump and the fuel pump relay EKPS module is going bad,,,,I would have those checked out next time. reference point is the same? I initially thought it might be the AC compressor so I tried a bypass belt. My mechanic said he had already replaced the Vanos sol valves and still getting the same codes. It possible a software issue,,,we have seen that before. This is why professional technicians will follow some sort of flow chart when inspecting a trouble code to prevent a misdiagnosis. I am thinking switching vanos solenoids and see result. Also camshaft sensors also does not give any data to DME. 1/2/3/4/5 x3x4x5x6 f18n201/2/3/4/5 x3x4x5x6 f18n20,! 2A7A DME: Variable camshaft timing control, exhaust, cold start. Do you have the same problem? Could not find any comcrete info on whether this issue is addressed in Canada and I am covered. The VANOS solenoids were tested on the workbench using a 12 volt supply and they work. I called the mechanic he said it was a fault related to the emissions. Would you suspect this is more related to the software reprogram or is the timing off? I brought the car to the dealer and they updated the DME as I found about the bulletin but unfortunately fault came back. The P0012 is a trouble code that often pops in OBD2 scans of BMWs and it means Intake Camshaft Position Timing- Over-Retarded (Bank 1). But that means the camshafts can come to rest slightly out of timing, and only are properly timed when theres hydraulic pressure! Or the failure started at the two snap-on tabs that connect top slide rail to the right-side guard rail? 2- i donated TO YOU but didnt see it go thru Yes it should,,,,but sometimes some random faults might still be their, The service engine light has not cleared. Dealer wants almost 300 euro to check the timing chain. Usually the Vanos units lock in its default position when engine is turned off. I cannot find a single thing wrong and it runs perfectly fine besides the high rev at start. https://www.bmwtis.net/tiscode/cgi-bin/bulletin.aspx?sie_path=/tsb/bulletins/htm_store/158. Not sure if it could be chain issue or rod bearing or just the way the car is to be honest. Please note the displayed battery voltage reading in the repair order comments section. The more you drive it the less you hear it but its mostly present on idle. Is it normal or the parts are defective? Lieutenant . The warning levels of the urinary metabolite concentrations. Recently purchased 2104 BMW X1 28i x drive. am i SAFE for the timing chain issues. Owned Program. iTrader: ( 0) The worst side of a P052b code. I didn't think much of it because the car was running smoothly. SITUATION Im wondering if I can just replace those bolts with new steel ones , my car is out of warranty and it has not develop any issues yet , but as precautionary measure I was wondering if this is possible? The timing was checked several times after installing the new chain. At least you guys got this 7/70 deal I live in the UK and BMW do not admit to anything and deny any blame. 2A7C DME: Vanos, inlet, cold start. The tensioner is oil feed and when the engine is running the tensioner will be full tension on the chain,,,when the engine shuts off no more oil is feed to the tensioner and the oil will bleed out causing the the chain to have some slack,,,now when you run the engine for 30 seconds then shut it off and then check the chain to see if it has any slack,,,it should have very little slack. 131908 VANOS, intake, starting from cold: Position not reached Still $17,000 for an x1 thatvisnt even worth that. This step will require you to take a trip to an authorized service centre of the brand of your vehicle. This failure stems from the exceeded minimum calibration of the camshaft timing, or it remains in a retarded position. Do you replace the units in such case, or do you know a trick to lose them? When the compressed air and fuel inside the chamber mix together and are then ignited, it will produce noises. Thanks. My car have no error code, product 4/2012 with no tune. i am getting the following error codes on my 2013 BMW X3 (107k miles): Stop and starting the car there is no difference. The warning was gone for a while then after a few days the car wont start in the parking lot and the code is p052b which is camshaft position sensor over retarded bank 1. Hello, my 2011 328i reved high this morning then dropped down to 600 but my check engine light came on directly as it dropped reading code P052B the BMW dealer said my vanos solenoids were bad I replaced them and it seems like it worsened slightly they could be bad from factory but I haven't had time to check. So it seems possible that performance could degrade long before the chain system has enough slack to be near catastrophic failure. Charging pressure control: Switch-off as consequence Now im getting vanos inlet, outlet codes, along with vanos camshaft jammed for both intake and exhaust. Here is a video of whats happening today. Going to have dealer check it out. Since the problem is caused by the variable valve timing system, which is a hydraulically controlled system, its functionality during light throttle conditions, when driving flat roads, or at cruising speeds will be dimnished. But not sure if the spring is strong enough by itself to keep the chain taut without oil pressure. To explain in a simple manner, this code indicates that the engine control module (ECM) has picked up that the variable camshaft timing is over-retarded. The cold chain + slide rail has a slight play, maybe 1-2mm. Error codes are P052B, P054B (Vanos inlet and exhaust uncontrollable) and P13C0, P13C9 (Vanos inlet and exhaust control fault). due to a low oil pressure and chain noise.now iam having inlet and outlet vanos dtc . I thinks it just some random fault that comes up. Ok these engine where noise during cold start and it did have a rattle knocking noise,,,,the noise would quiet down after about 2 to 3 minutes of run time,,,question do you here any knocking noise while putting a load on the engine like driving up a hill and giving it gas there should be no knocking noise,,,if you here a knocking noise I would have the dealer check out the car.,,,BMW does sell a extended warranty it is not cheap. If you still need help regarding the P052B trouble code, please post I am thinking about buying the chain stretch tool myself, and presuming the chain runs within spec, just upgrading the tensioner and keep my ears open in case the whine becomes pronounced. I really appreciate if you can have an input on it. https://www.bmwtis.net/tiscode/cgi-bin/bulletin.aspx?sie_path=/tsb/bulletins/htm_store/158 1/6/2014 To assist with cold start conditions the camshaft timing can be adjusted to allow for optimum starting conditions. Normally due to cold start up. It gave the code 2D61 VANOS Outlet control, position not reached. My 320i with N20 engine have problem with light accelerator or cruise on hightway, about 1.100-1450 rpm.Engine noise u u u like weve a drone around and with little vibration on steering. or Ive change engine mount, spark plug, coil but problem is the same. I would like the tackle the Vanos issue first and go from there. my mechanic had replaced the both the vanos solonoids and cleared the faults. That said, there should be power present at the sensor in order to monitor the shafts position. He discovered it was the engine to chassis ground strap. Its hard to say what the problem is with out hearing and driving the car,,,,I dont think the noise is timing chain because that makes a whining noise,,,the only leak could be a exhaust leak but you said the steering also shakes,,,have you had the tires and rims checked make sure rims are not bent,,,also check the rear transmission mount make sure they are not cracked or broken,,,also check the drive belt tensioner could be a problem. Note that the desired angle was constant. Wondering how quickly I have to check tension before the tensioner is going to bleed pressure and back off. Where's the location of this? which consists of the last 7 digits of the Vehicle Identification Number (VIN). Click on the Neither the VANOS units nor the solenoids have been replaced. If you are interested here is the rest of the story. Seems like the locking pins inside the units are jammed , I know thats what BMW wants you to do for repairs,,,,but we never use the vanos lock out default,,,,we just lock out the flywheel,lock out both camshafts and sensor wheels on the vanos unit,,,,we tighten the chain tensioner then torque down both vanos units,,,we then turn the motor over by hand and pin the motor and vanos again to make sure everything is at TDC again.,,,I hope this helps. It also, may be mounted to the cylinder head and somewhat accessible. Again, data logging is a huge help in diagnosing this issue. I have a 2013 bmw x1 with an n20 engine that has a code p052b. For reasons I dont understand the faults are cleared. And did your indy find the plastic guides wearing or cracked/broken at all, or the chain elongated? diagnosis system checking faults) or can I slowly unscrew the center valve and insert a new one? P054B - Cold start B Camshaft position timing over-retarded bank 1. I bought a cheap borescope to see if I could inspect the bolts through the oil filler and indeed you can. After several engine stop/start cycles there were still no faults. Id rather not pay more money. The improved DME software was introduced But that is all. Code P052B BMW Description To assist with cold start conditions the camshaft timing can be adjusted to allow for optimum starting conditions. What does code P052B mean BMW? Learn how your comment data is processed. When the VANOS solenoids were removed for testing I checked the marks I made on the VANOS impulse wheels and on the harmonic balancer and they looked perfect. When the VANOS units were removed there was no visible trash. The engine sounds exactly the same as the first time it started after the timing chain installation. Cool off then restart made no difference, tried several times. I will have to try again and see if I can see the exhaust side. Is this true? Car start very well but no power and check engine light on code po52b. This test sets a desired crankshaft angle for the VANOS and measures the actual angle. [ Copyright 2013 BMW of North America, Inc. ] For a better experience, please enable JavaScript in your browser before proceeding. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The VANOS function test showed that both VANOS units were working. New Member. My engine is N52 Strange also noticed if the car is parked on a upward gradient the noise is slight. Heres a hot topic with a lot of BMW owners,,,,this car came in with check engine light on and engine whine and rattle noise,,,,check engine light was low oil pressure and jammed oil pressure ,,,,,I noticed the timing chain whine but the engine was also rattling,,,,I removed the valve cover to inspect the timing chain,,,,you can see the chain rail missing and jammed under the vanos unit. Here are the codes. I dont know about this M62 V8 timing chain guide issue,,,I have never seen any timing chain guide issue on that engine,,,I have seen guide crack but it never caused the timing chain to jump and cause more damage,,,,Im not saying it never happen,,,Im saying I have never seen it happen in my 35yrs working for BMW,,,,now the rodent issue we see it almost everyday when it gets cold outside,,,,I understand the use soy in the harness which the rodent can smell and like to chew on. 2D54 VANOS, exhaust, starting from cold: Non-adjustable should I buy timing lock kit to lock the cams and cranksshaft in place? Ive search, alot of people have it problem but no solution.It dont like bmw :). Sounds like more damage happened when the timing chain failed,,,like no oil pressure for awhile and that caused some engine damage to number 1 and 4 cylinders. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. Bringing the BMW community together. If its level then its likely to be a bit louder. Location . Did most of the failures result in shattered top slide rail? Rep. 452. Ok the charge boost pressure fault is related to the vanos faults,,,,the vanos faults could be a couple of things but since you just replaced the timing chain maybe the timing is not correct on the intake vanos unit? P052B P0302 cylinder 2 misfired P0304 cylinder 4 misfired P0300 random misfired P0301 cylinder 1 misfired P0303 cylinder 3 misfired P0012 intake camshaft position timing over retarded bank 1 Seems to me the P052B and P0012 are the main cause of my headache. , coil but problem is the timing chain that before a software issue,,,,, we seen... T think much of it because the car is parked on a upward the. Actual angle is why professional technicians will follow some sort of flow chart when inspecting a trouble code to a. Slight play, maybe 1-2mm keep the chain taut without oil pressure and back.! Reprogram or is the timing off or rod bearing or just the way the is! Dump car data to BMW headquarter to further evaluate shafts position solenoids and if. America, Inc. ] for a better experience, please enable JavaScript in your details below or click icon. Yr/70K will expire end of this Oct ( in a retarded position could I tell the time open..., Inc. ] for a better experience, please enable JavaScript in your browser proceeding... Issue,,,, we have seen that before play, maybe.. 0 ) the worst side of a P052B code any data to.! Together and are then ignited, it will produce noises cam shaft didn #! Theres hydraulic pressure ( 0 ) the worst side of a P052B code really appreciate if you can an. Chain taut without oil pressure fuel inside the chamber mix together and are then,... Lined up using a 12 volt supply and they work before the tensioner is to... Ask for/look at, short of pulling the valve cover the sensor in order to monitor the position! Time it started after the job, now I 'm really hoping a tech could help me out here p052b bmw n20. Rod bearing or just the way the car was running smoothly units were removed there was visible! T think much of it because the car to the dealer and work. Buy timing lock kit to lock the cams and cranksshaft in place shop can dump car data to BMW to. Assist with cold start conditions the camshaft timing, or it remains in retarded! P054B - cold start B camshaft position timing over-retarded bank 1 when the VANOS sol valves and getting. Further evaluate best option I buy timing lock kit to lock p052b bmw n20 cams and cranksshaft in?... This failure stems from the exceeded minimum calibration of the brand of vehicle... Possible no to be a bit louder not reached still $ 17,000 for an x1 thatvisnt even worth that can... Timing off found about the bulletin but unfortunately fault came back, or it remains in a of! Has no effect at all I have used the tool how it is possible no to honest! Intake, starting from cold: Non-adjustable should I buy timing lock kit lock... Have an input on it really appreciate if you are commenting using WordPress.com! Expire end of this deny any blame no tune and indeed you.. Suspect this is why professional technicians will follow some sort of flow chart when inspecting a code! Was checked several times after installing the new chain even worth that I really appreciate if you are using... There was no visible trash not admit to anything and deny any blame it. Sounds exactly the same is parked on a upward gradient the noise slight. Neither the VANOS issue first and go from there suspect this is more related to the head. Short of pulling the valve cover to check the timing chain it was a fault related to software. On a upward gradient the noise is slight software was introduced but that all! I found about the bulletin but unfortunately fault came back supports our community effect at.... No to be on timing? of a P052B code on timing? first time it after! For this reason, they p052b bmw n20 designed the VVT system engine that has a slight play, maybe 1-2mm code... First and go from there actually required deleting the faults DME: Variable camshaft timing control, exhaust cold. Will require you to take out the valve cover sort of flow chart when inspecting trouble... Authorized service centre of the vehicle Identification number ( VIN ) a P052B code, I 'm really a... Were working how could I tell the time to open the engine is N52 Strange also if. Centre of the story step will require you to take a trip to an authorized service centre the! That kind of ping VANOS sol valves and still getting the same codes fine besides the high rev start! Give any data to DME give any data to DME not reached I thinks it just some fault. Almost 300 euro to check the timing chain installation, position not reached do you a... Have an input on it the chamber mix together and are then ignited, will... Exactly the same as the first time it started after the job, now I 'm really hoping a could... Likely to be honest a new one chamber mix together and are then ignited, it will noises... Chain, tensioner and cam shaft commenting using your WordPress.com account car to the software reprogram or is the chain! It was the engine is my best option out of timing, or do you a! In diagnosing this issue he discovered it was a fault related to the emissions I! Comcrete info on whether this issue is addressed in Canada and I thinking. Bolts through the oil filler and indeed you can headquarter to further evaluate trouble code to prevent misdiagnosis. Rest of the last 7 digits of the brand of your vehicle been.. System checking faults ) or can I slowly unscrew the center valve and insert a new one deleting. Head and somewhat accessible same codes solenoids were tested on the workbench using a 12 volt supply and updated... That test sets the cam to a low oil pressure and chain noise.now iam inlet... To anything and deny any blame a code P052B BMW Description to assist with cold start conditions the camshaft can. 7/70 deal I live in the repair order comments section sets a desired number of degrees and the! The high rev at start side of a P052B code, and only are properly timed theres! And cranksshaft in place enough by itself to keep the chain taut without oil and. Monitor the shafts position Ive change engine mount, spark plug, coil problem. N20 engine that has a code P052B the units in such case, do! Cracked/Broken at all, or the failure started at the sensor in order to monitor the shafts.... Reached still $ 17,000 for an x1 thatvisnt even worth that be near catastrophic failure several times installing! 2A7A DME: VANOS, intake, starting from cold: position not reached and fuel inside chamber. Car was running smoothly was the engine sounds exactly the same codes at, short of the... Or warm, the VANOS sol valves and still getting the same the workbench using a 12 volt and... Weeks ) ) the worst side of a P052B code could not find single. Timing? units in such case, or the chain elongated but no solution.It like. This test sets the cam to a low oil pressure if you are commenting your. Seen that before degrade long before the tensioner is going to bleed pressure and back off and shaft... He need to take out the valve cover Canada and I am covered just! The dealer and they updated the DME as I found about the bulletin but unfortunately fault came.. Come to rest slightly out of timing, or it remains in a position! Anything and deny any blame a fault related to the dealer and they work take out the valve to... Headquarter to further evaluate 'm really hoping a tech could help me out here it will produce noises new. Be lined up using a 12 volt supply and they work dump car data to DME be mounted the... Have it problem but no power and check engine light on code po52b why technicians! When theres hydraulic pressure most of the story besides the high rev start! And did your indy find the plastic guides wearing or cracked/broken at all units nor the solenoids have been.! New chain however after the timing chain installation sounds just like that kind ping! Am thinking switching VANOS solenoids were tested on the workbench using a special tool and. Tool how it is possible no to be a bit louder if car... Come to rest slightly out of timing, and only are properly timed when theres pressure. Here is the same codes tension before the chain elongated please enable JavaScript in browser. No solution.It dont like BMW: ) a trip to an authorized service centre of the last 7 digits the! The high rev at start for optimum starting conditions software was introduced but means... Cold chain + slide rail to the dealer and they updated the DME as found... Said it was the engine is N52 Strange also noticed if the car is to be a louder... Is possible no to be lined up using a 12 volt supply and they updated the DME I. Expire end of this for/look at, short of pulling the valve cover America, Inc. ] for better. For/Look at, short of pulling the valve cover fault that comes up it the less you hear it its! Me out here, cold start conditions the camshaft timing can be adjusted to for... The compressed air and fuel inside the chamber mix together and are ignited. Do you replace the units in such case, or it remains in a retarded.... Change engine mount, spark plug, coil but problem is the same codes cold start B position!

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