Diagnosing the RATTLE and STALLING - N42/N46 VALVETRONIC Retainer Spring Replacement [PART #1]

Рет қаралды 44,424

3 жыл бұрын

In this video series I diagnose and replace a broken retainer torsion spring that holds the intermediate lever pressed against the VALVETRONIC eccentric shaft on a N42 engine.
PART #1:
2:52 Starting the engine and observing rattling during warmup
3:40 Scanning and diagnosing with INPA
7:32 Switching VANOS solenoids
9:51 Removing valve cover and checking the timing
13:00 Checking if VANOS units are locked
19:43 "Here's your problem" - Broken Valvetronic spring
21:43 Intake VANOS unit won't lock
After chain replacement ( • N42/N46 Chain Replacem... ) I noticed that there are some ticking noises during throttle body to VALVETRONIC operation transition. During this transition the engine stalls but then recovers to "normal" idle RPM.
This car is 2001 E46 316ti Compact BMW with 200.000km on the odometer.
PARTS:
- VANOS bolts: 11367500574
- Valvetronic Retainer Springs: 11377513873
- Spark Plug Cylinder O-rings: 11377514007, 11377514008
- Valvetronic Servo Motor Gasket: 11377501015
TOOLS:
- N42/N46 Timing tool kit: cutt.ly/yhVmCJF
DISCLAIMER:
BimmerZen assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. BimmerZen recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of BimmerZen , no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not BimmerZen.

Пікірлер: 63

@mrbobbybtv 3 жыл бұрын

Wow, your patience is amazing! Thank you so much for the videos, somehow my n42b18 with 256k is holding up (only replaced chain and tensioner) fingers crossed. Looking forward to how your are going to fix this problem. Good luck!

@magnus3885 3 жыл бұрын

gotta say you make excellent videos just finished changeing my timing chain using ure guide :D

@BimmerZen 3 жыл бұрын

Thanks! I just took a look at that chain replacement video (part #1) and I could see that this spring was already broken back then: kzfaq.info/get/bejne/hs9pmbqIs8yUl3U.html I was RIGHT THERE and I didn't notice:D:D

@magnus3885 3 жыл бұрын

@@BimmerZen rip i work at a junk yard and u just took parts from 2 n42 i could have sent you for free used vanos units but they are gone now you where a bit late :( xD

@magnus3885 3 жыл бұрын

but i can send you a message if we happen to get any n42 in the near future :D

@BimmerZen 3 жыл бұрын

@@magnus3885 Wow, that is so generous of you! I will try to open the VANOS unit and see what's going on. Might only be some dirt preventing the locking pin to drop. If I see any wear or damage I'll replace it, so I'm definitely interested in sourcing a spare VANOS unit. Shoot me an email to bimmerzenchannel@gmail.com if any N42/N46 engines comes your way and we'll work something out:)

@magnus3885 3 жыл бұрын

@@BimmerZen sure :D i had to take a coil for the sparkplug turns out they brake very easy it fell from the bumper and went right in two xD

@marekmarek4539 3 жыл бұрын

good job ! :)

@johnsalvatorecosentini6600 2 жыл бұрын

Hi Bimmer Zen . Do you know if there is a tutorial on how to rebuilt a 6 Speed transmission of a E90 ? I would like to replace the bearings and seals .

@theogg8827 3 жыл бұрын

BimmerZen just solved all my problems pm ...sorry for the annoyance man. Btw its Arman! :D

@XtaticVideo 2 жыл бұрын

Молодец

@mflo1970 2 жыл бұрын

Buenas sigo tu canal con un 316ti se partieron los muelles intermedios al girar manualmente he visto lo mismo que el video el vanos admisión se retrasa debería sustituir gracias

@DebtFreeCars 2 жыл бұрын

Any check engine lights on or error codes?

@dapeco59 10 ай бұрын

Y como quedó las lecturas después del arreglo?

@kitsh8011 Жыл бұрын

Wow! I have this engine actually and a problem of hesitation when flooring it down! Was it like a 2 or 3 times accelerating and decelerating when you floored it? I’m so scared! Please answer back sir..

@veke05 5 ай бұрын

I got a n46b20 and i have hesitation when flooring it. Did you figure it out?

@MiodragMartinovicRSIK 3 жыл бұрын

Goog

@dulenajdov9519 3 жыл бұрын

Hello i have n42b20 engine on my E46 Compact, however i have idle problems and an oil conspumption 1l per 1000km, can you tell me where to start diagnosing the problem. The idle is going from 700rpm to 1100 and in one moment it will raise till 2000, 2500rpm and stays about 30 secs and then it drops to 800rpm. Thank you in advance

@BimmerZen 3 жыл бұрын

Oil consumption problem is probably bad valve stem seals or/and bad ccv. I would first replace the CCV and hoses (if still original). Clogged, malfunctioning CCV and broken CCV hoses can cause a lot of issues. Regarding the idle... you need to scan the car with INPA to see if there are any error codes. First check for vacuum leaks. Check intake boot, Vanos solenoid orings, valvetronic sensor connector flange gasket. I removed intake boot and used a latex glove to connect air compressor hose to the throttle body. I then applied 0.5 bar of pressure to preasurise the system and sprayed soapy water on all the hoses and orings so i could hear and see bubbles forming. This is how i found all the vacuum leaks on my car. You will most probably nees to replace the valve stem seals to fix the oil consumption. You can check my other videos on how to do that.

@dulenajdov9519 3 жыл бұрын

@@BimmerZen thank you very much for replying, i hope i will fix the problem

@gst_6377 2 жыл бұрын

I’m having valvetronic motor issues and I am replacing the motor I have heard online that when replacing the motor the car will auto Auto calibrate is this true for the n42 engine?

@BimmerZen 2 жыл бұрын

Initialisation happens if Valvetronic ECU detects that the eccentric shaft is not in the expected position. This will almost ceirtanly happen after servo motor replacement.

@gst_6377 2 жыл бұрын

@@BimmerZen thank you for your help

@gst_6377 2 жыл бұрын

@@BimmerZen okay so replaced the motor and I think it’s a wiring issue I am having because the inpa code is saying there is a short detected in the vvt wiring is there any possible place I can get a wiring diagram/ where is the fuse for the vvt

@WayToManyAssassins 7 ай бұрын

I recently developed valvetronic codes and limp mode when i start the car (N46) then it goes away after couple minutes of driving. When i disconnect the eccentric shaft sensor the limp mode disappears but engine light remains. Does this mean a bad shaft sensor? I tested the valvetronic motor and resistance is fine. I can also hear it priming when i turn the ignition on without any strange noises

@BimmerZen 7 ай бұрын

Well, what are te codes exactly?

@WayToManyAssassins 7 ай бұрын

@BimmerZen It was the eccentric shaft sensor. Fixed it Typical failure apparently

@ahmedza9303 3 жыл бұрын

Please open the vanos unit because i would also like to have a look inside. My n46 also has a exhaust vanos unit problem

@BimmerZen 3 жыл бұрын

Yep, I'm waiting for the correct 5-point bits to come by mail, I will definitely take a closer look at that VANOS unit:)

@lisandra1957 Жыл бұрын

Hello sir, greetings from Indonesia, I have a problem with a BMW E90 N46, the scan results show a problem 276A : catalytic converter conversion 2863 : DMe valvetronic, my powerlimiter I have replaced the new servvo valvetronic motor, but it appears again after a few days of use. why? Any solution?

@BimmerZen Жыл бұрын

I cant find any solid info on the 2863 code... Are you 100% sure you get that code? Could you post exact description of the fault? "DMe valvetronic, my powerlimiter " does not seem to be the correct wording... If the servo motor was replaced and the error is in fact regarding the servomotor, then there are two main posibilities: 1. DME output stage is faulty - can not drive the DC servomotor (DME needs to be replaced or repaired). 2. Eccentric shaft is binding and causing the DC servomotor is unable to rotate it within expected envelope. Possibly the eccentric shaft bearings are binding and need to be replaced.

@lisandra1957 Жыл бұрын

@@BimmerZen Sorry for typo sir Correction : 2863 : DME : Valvetronic Power Limitation 🙏

@BimmerZen Жыл бұрын

@@lisandra1957 Did you reset the codes after DC servomotor replacement? Did you initialise the Valvetronic (VVT) after?

@lisandra1957 Жыл бұрын

@@BimmerZen yes after replaced it, my mechanic has reset the code and he doing initialized by click start button once without push the brake pads & click start button again within push the brake and engine is on ( i dont know this is correct way or no), And then the engine runs normally and I have used the road for about 90 km for 2 days but the check engine starts again with same error code.

@lisandra1957 11 ай бұрын

@@BimmerZen Hallo Sir... How are you? I would like to update about my BMW, after I did the initial reset before, now i have the error code 2847 DME valvetronic servomotor electric (NEW appears), 2863 Valvetronic Power Limitation & 2869 (valvetronic sluggish movement) appears. this error came suddenly after the reset it still appears with the same error code... can you help me with my problem? thank you sir 🙏

@bartsprengelmeijer4825 2 жыл бұрын

Why is the valvetronic not activated directly after starting the engine ?

@BimmerZen 2 жыл бұрын

Engine is in warmup mode for the first 1-2 min, then it transitions to valvetronic operation

@bartsprengelmeijer4825 2 жыл бұрын

@@BimmerZen I have some rough idle on cold start for a couple second and the car threw a valvetronic code P1062, since that happens in warmup mode does that mean it's the eccentric shaft sensor and not the valvetronic motor ? Or am I understanding this wrong

@kirkmyles 2 жыл бұрын

@@bartsprengelmeijer4825 would like to know about this as well as ive recently got myself a used 318i and its giving me lots of headaches but i wanna push on because im really loving the car

@faheemmustupha269 4 күн бұрын

Hi Bimmer Zen... I have a 318ti N42B20 2002 Automatic, problem is the idle....it idles perfectly normal and than the next minute it's a rough idle but doesn't stall...while driving no issues only when u comes to a stop sometimes its perfect idle and sometimes a rough idle...while driving it performs well but a bit heavy on fuel...I had the head re-done, all 4 new coil packs, 4 new spark plugs, re checked the timing twice but still having the issue...checked for any airleaks but nothing...cheaked all the wires all in perfect condition...on diagnostics i had a report of missfire on cylinder 3 and 4, cleared the fault but it still does the same thing...i see that when i unplug the idle control valve there is no difference in idle if i disconnect the idle control valve should the car not stall...i when it begins to idle rough the valve tronic motor keeps working to to set the valve tronis...do you advise i check the Vanos if its locking or please can you advise what else can I check on it...thank you.

@BimmerZen 4 күн бұрын

@@faheemmustupha269 I suspect you have worn valvetronic components and/or bad lifters. Did you try disconnecting the valvetronic position sensor? This will cause the valves to open fully and the engine will be controlled by the auxiliary throttle. If the rough idle is gone, then you have valve opening issue (Valvetronic components). You will need to remove the valve cover and inspect components. Idle will be better if the AC is on (higher rpms = larger valve opening). On warmup the engine works with aux throttle and after a minute it transitions to Valvetronic operation (rpms controlled by valve lift) and you will get rough idle.

@faheemmustupha269 3 күн бұрын

Hi BimmerZin, I spoke to the workshop that worked on my car and they advised they did not zip tie the valvetronic system as they say its not necessary...what should I look for to see if the set up had been done correctly...and I see the eccentric shaft sensor ug has oil in it, can I try cleaning it with electric switche cleaner or rather replace it...regards Faheem

@BimmerZen 2 күн бұрын

@@faheemmustupha269 What work was done on the engine by the work shop? If they removed the Valvetronic assembly without securing the intermediate levers then it's very possible that they slipped out of position and the torsion spring is no longer keeping it pressed against the camshaft and eccentric shaft. That would cause a bit of rattle and incomlete valve opening. Very common mistake on cylinder nr.3 : kzfaq.info/get/bejne/fNRoaLxevZ_KcYE.html You can use breakclean on the conector.

@faheemmustupha269 2 күн бұрын

@BimmerZen they replaced Headgasket and valve stem seals...Head was skimmed and in good condition from engineering side.

@BimmerZen Күн бұрын

@@faheemmustupha269 what was wrong with the engine? Definetly check the valvetronic intermediate levers for slipped springs....

@tinekese5025 Жыл бұрын

Zivjo. Sem slucajno opazou slovenske tablce na autu. Trenutno gledam enga bmw e46 316ti in se mal izobrazujem o vanosu in teh zadevah. Ali je res tok tezko in drago popravut vanos v teh autih kot vecina ljudi pravi in ali je tezko najdt dele za popravilo? Btw pa res dobr video kar se vanosa tice

@BimmerZen Жыл бұрын

N42/N46 motorji imajo VANOS in Valvetronic, se pravi so precej komplicirani in posledično več težav in težji za popravljanje. Ker je dokaj kompleksen motor se jih veliko mehanikov izogiba ali pa nimajo ustreznega znanja in naredijo "po domače" in gre kaj narobe. Če se malo poglobiš v motor, ga lahko tudi sam poservisiraš oz. popraviš. Nove komponente so drage, npr VANOS enote in ekscentrična polosovina, rabljeno je težko dobiti preverjeno dobre... Če kupuješ 316ti ti svetujem, da dobro preveriš servisno zgodovino. Menjava olja na teh motorjih je najbolj kritičen element (menjano vsaj 1x letno oz na 15.000 km). Če boš imel še kakšna vprašanja, mi lahko tudi pošlješ sporočilo na email, ki ga imam v opisu YT kanala.

@alejandromorales5049 3 жыл бұрын

Hello im mexican can you help me wit the pocition levels ignición

@BimmerZen 3 жыл бұрын

Hi, what is the problem?

@alejandromorales5049 3 жыл бұрын

@@BimmerZen hello am repairing one but when I start it it shows me that the intake tree is delayed, so I feel that the tree was not put in the correct orientation. Could you support me by telling me the orientation of the cams of piston 1 in intake in neutral

@alejandromorales5049 3 жыл бұрын

@@BimmerZen I am repairing one but when I start it it shows me that the intake tree is delayed, so I feel that the tree was not put in the correct orientation. Could you support me by telling me the orientation of the cams of piston 1 in intake in neutral

@BimmerZen 3 жыл бұрын

@@alejandromorales5049 Follow this procedure to check timing on N42/N46 engine: www.newtis.info/tisv2/a/en/e46-316ti-com/repair-manuals/11-engine/11-31-camshaft/DpNzXt9 Free registration is required.

@BimmerZen 3 жыл бұрын

When the engine is in TDC on first piston, the locking planes at the back of the camshafts must be 90 deg in relation to the cylinder head plane. Also, the rounded part of the locking planes must point upward. Also make sure that VANOS units are locked before checking.

@triumph2023 8 ай бұрын

Hi i just want to ask a question would really like if you can respond to me ASAP. I drive a e46 318i i have a problem with the valvetronic it doesn't power on when i start the engine i have run a diagnostic and it shows that the computer box is not picking up the VVT but it does have power i used a tester on the cables do you have any suggestions ?