Here is a better picture of the damaged chain rail.
Here you could clearly see the broken pieces,,,with the broken piece it wouldn’tclip together causing a timing chain rattle noise.
Update N20 timing chain
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So I had the timing chain replaced in my car and got it back today. It has not power and is throwing 3 codes, they are P13C9, P052B, and P13C0. Any advice on what would be causing this?
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First I would take the car back who ever did the timing chain repairs,,,,second the faults are intake and exhaust vanos camshaft stuck and timing issues,,,,sounds like something they did wrong with timing the engine with the new timing chain.
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So would the timing be causing the VANOS issue?
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Yes it could be the problem,,,they have to take the valve cover off and time the engine,,,they can check the vanos at the same time,,,the timing and vanos unit work all together
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Hi, ive got a ’13 328 xdrive. Im attempting a timing chain replacement, and oil pump replacement. Does the oil pump come with the counterbalance shafts? and do i have to set the backlash on a new oil pump assembly? thanks so much for you help
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hi, is separate oil pump cost 30% form the balance shaft.
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No the oil pump does not come with the shaft,,,no back lash on oil pump
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Mine broke at 76,000 mile! The rail shuttered and lost power while driving at 40 mph.
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The one thing I can’t understand is why the oil pressure sensor doesn’t detect that the oil pressure is to low when the plastic pieces comes in to the oil pump inlet? Why the oil pressure warning comes only after the engine is destroyed? why not immediately just after the plastic pieces comes into the oil pump ?
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The pressure is still there,,,but the amount of oil flow is restricted because of the plastic pieces but the pressure is still there.
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OK, but if the amount of oil flow is restricted then I think the oil pressure should be also restricted? The n20 engine has some kind of intelligent oil pressure sensor as I read in TIS: https://www.newtis.info/tisv2/a/en/f10-528i-xdrive-lim/components-connectors/components/components-with-b/b6125a-engine-oil-pressure-temperature-sensor/Hios1lpe
The sensor gives data of exact current oil pressure in hectopascals (hPa) unit – I checked it in diagnostic software ISTA. Right after I pressed the gas pedal the data was changing
So if the oil pressure is insufficient then it should detect it? or this sensor isn’t sensitive enought to catch it and it works only if the oil pressure is really really too low?
In diesel engines there is a simple sensor that only measure if oil pressure is above 0,5 bar: https://www.newtis.info/tisv2/a/en/f10-520d-lim/components-connectors/components/components-with-b/b2008-oil-pressure-switch/XAAgjYU
So if the n20 engine would has this sensor I would understand why it wouldn’t catching the restricted oil pressure but it has this more advanced sensor about which I wrote above
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Yes the pressure is still there,,,but the volume and amount of oil is less,,,there is a difference between pressure and volume,,,,you need both,,,,and the sensor can not detect volume just pressure.
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Thanks for the answer. That’s very interesting. I will be reading about it to know more
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