BMW 318i N43 (E90 2010) - Multiple Fault Codes - Rough idle cuts out Part 1

BMW 3 Series (2010) Cuts out, extended Crank

[@MechanicMindset]

Hey Sandy. Your low pressure is 6 bar and high 150 bar. That’s spot on. I would first look at getting rid of the Sulpherized DeNox cat fault. Low mileage cars are susceptible. There is a service function to regen this cat. My Indy mate usually puts a tank of VPower and a long run up the road (motorway) to clear it. It does cause running issues. But everything else there looks ok at a glance...

[@sandyande]

Thanks Darren we are going to try that very procedure tomorrow thanks for your help, Sandy

[@leewood9209]

I had a long list of faults and in the end after a lot of head scratching it turned out to be no. 1 spark plug the porcelain had a crack in it… new spark plug no more problems, I also know it’s possible the seals on the vanos solenoids can cause timing issues.

[@tawfiqshreim7704]

Hey, how did you fix the code 29f2, the pressure was 445 psi then 150000 hPa, I have the same problem, I changed all the fuel parts but tell now nothing changed

[@tanoliam]

for replacement you need to remove the valve cover by prying it with a screwdriver. remove the old and install the new membrane. close the cover.

[@dipindersinghsaggu5544]

Hi, did you manage to resolve this??

[@crank3646]

It is normal to have slag in the chain , depends on how the engine stops . There is no hydraulic tensioner btw the both camshaft , so it is normal . The timing chain most of the time fails around 150-200k kms on this engines . This engines have problematic injectors and coil plugs . The plugs needs to be pushed aditionally when you snap the coil plastic over them .

[@sandyande]

Thanks my friend for timing chain info u help me dodge a bullet! Cheers sandy

[@nathanrhodes8487]

The chain guides have snapped. The chain and guides come in a set for around £100-£200 change the Exhaust vanos sensor. Clean intake vanos sensor. Replace crank position and cam position sensors and you’ll be good I swear to god. This is experience

[@AntonioHuza]

How did you know ? I have now the same problem, my chain is perfectly tight but it had a little bit of play before

[@lucasbarnes9688]

How did you solve this problem?

[@johnjohn1061]

Where I can find next part?

[@mhvdm]

Just wanted to say the two components you pointed at @ 2:21 are not the camshaft sensors, those are the VANOS solenoids

[@bryanjudefernandez2195]

i believe the n43 does not have vanos. im not too sure tho, do correct me if im wrong, i have an e92 320ci cheer!

[@i80486dx]

@@bryanjudefernandez2195 No, @sjakkelino is right. The N43 engine does have VANOS on both camshafts. @sandy anderson is pointing at the VANOS solenoids. they act like a valve for adjusting the camshaft timing. the N43 engine also has valvetronic, which controls the amount of valve lift with an electric motor on top of the engine. You may be mistaking with the M43 engine of the first generation E46, that does not have VANOS, but a single camshaft instead. The N43 engine (E90, E91, E92) (2006-2013) does have VANOS. Great engine, will work perfect when carefully maintained. Very important is the correct spec oil and services within interval as specified by BMW.

[@bryanjudefernandez2195]

@@i80486dx ouh i see, my bad i didnt know my motor had vanos. i think the engine before 2003 models didnt have vanos, correct?

[@mikeberry304]

Magic wand time Sandy , let him make the decision , could be normal between cams as no tensioner there , but might be worth taking cam cover off to make sure sprocket ok

[@sandyande]

Cheers mike sandy

[@muhammedali3131]

It could be the chain tensioner

[@TheGibby3340]

Is the Vanos actuator causing that variability in the chain tension Sandy?

[@sandyande]

Seemingly that chain slack is normal Ian! Takes me back to ford Cortina days!!!

[@pavelhorak1888]

I have that engine with the same engine, if you take care of your car, you will be good :-) But you have to know something more about these n53 n43 engines :))

[@user-lp8ro5lj8x]

Have you managed to find the root cause of the rough idle and engine cutting-out in the BMW N43 engine? If so would be interesting to know what the fix was?

[@sandyande]

No car was sold

[@dermotwall78]

Sometimes a poor quality oil filter can cause timing issues especially the o ring at the bottom of the filter housing being under sized

[@sandyande]

Thanks dermot I’ll tell him that , sandy

[@ThePanditG]

Hi, can someone tell after how many miles should the timing chain of E90/n43 should be replaced? I just got a 2010 318i with 95k miles on the clock, and am wondering if now is the time..

[@kevcat8655]

Sandy, what app have you used for this please?

[@sandyande]

I use the Autel 905 and Snap on Verus Scantools cheers sandy

[@kevcat8655]

@@sandyande Thanks mate

[@CarsExposed]

Interesting one my friend , that chain slack seem a bit dodgy to me ...

[@sandyande]

Seemingly that’s Norma igor!

[@Marcell-ux7rb]

👮🏻‍♀️I'm sure the top guide broke 🤭 and that's why the chain plays like a bracelet on your hand and throws a bunch of crash codes

[@royritchie4184]

I think you need a diagnostic dice😉

[@sandyande]

Every day lol

[@whyulyin]

BMW RECALL as of today my 2008 BMW e92 320i is having a new timing chain and kit fitted by BMW as its stretched causing cold start and injection issues. If you have a recall outstanding for a "Quality Enhancement" then get in done. May save you ££££s

[@sandyande]

Thanks for information 😉

[@d.d4184]

Sometimes you are better off not getting involved. Hand the keys back and run

[@sandyande]

But I just can’t resist lol cheers sandy

[@tam1381]

Sandy tell him to buy a Toyota. Fixed.

[@sandyande]

Funnily enough his wife’s got one!!! Cheers Tam sandy