[Johnnyroper]

That could be camshaft sensor or timing is off, I would get it scanned with Bmw specific software as P codes can be misleading on Bmw

 

[Johnnyroper]

Not too sure on that engine, could be front of head or in rocker cover.
But before replacing anything scan with proper diagnostics as you could be chasing a fault based on that code but it’s actually something different as generic scanner has interpreted the bmw hex codes incorrectly

 

[Johnnyroper]

There shouldn’t be 2 intake solenoids there is one per cam shaft so one on exhaust one on intake.
I think at this point the mechanical timing should be checked before throwing parts at it along with Bmw diagnostics.

 

[Johnnyroper]

Don’t even bother trying to re-time it if it’s off it’s off for a reason. Most likely stretched or guides breaking up.
Do a complete chain kit along with sump removal and clean sump/oil pick up to make sure no debris.

 

[Johnnyroper]

The petrols are a doddle hardest part is locking crank to crack boot off and then torque it up again.

 

[Johnnyroper]

Rocker cover gasket aswell, sump gasket if you are taking sump off to check for debris which is advisable. Obviously oil and filter then aswell

 

[Johnnyroper]

There’s no marks you need a timing kit like this to align and lock the camshafts and sensor pick up wheels

 

[Johnnyroper]

You need to lock crank shaft at TDC with the locking pin, make sure cams are in a position where number 1 valves are fully closed the cam lobes should be facing upwards but not completely vertical.
As it’s a 4 stroke you can have camshafts 180 degrees out so you need to confirm lobes pointing up.
If the locking tool won’t go on as cams slightly out of time then you will need to slacken cam bolts and move camshafts with a spanner until tool will slide over and lock them up.

 

[Johnnyroper]

The vanos hubs can go in any orientation, you just need to make sure you match inlet to inlet and exhaust to exhaust. The bit that needs to go in correctly is the cam sensor pick up, there should be a lock tool in kit to align them.

 

[Johnnyroper]

No don’t turn the engine, when crank is locked slacken the sprocket bolt and then use a spanner on camshaft to rotate back in to time and fit cam lock.

 

[Johnnyroper]

If timing was out then something has caused it, putting back in time has not resolved that.
Until you resolve the timing issue which is most likely stretched chain and breaking up guides it’s pointless changing anything else.
You need to replace chain kit and check oil pick up for debris, as that will have same weren’t on oil as having not enough in it

 

[Johnnyroper]

I changed an n43 a few weeks back and that was probably 10mm difference. Original one the tensioner was at max extension but chain still had slack in it

 

[Johnnyroper]

Ista needs icom or enet calve for f series cars or k-dcan to usb for e series cars.
I would check vanos operation with ista could be hub issue or the solenoid, have you checked the screen around solenoid as they can get dirty. Also have you checked the oil pick up pipe for blockages as that can also cause oil problems so will have an effect on vanos.
What make sensors did you fit?

 

[Johnnyroper]

Strange fault I would double check timing,can’t imagine the washer on chain guide would be the cause.
If timing is spot on then I would be tempted to reset vanos adaptions

 

[Johnnyroper]

Yes that will be oil pump chain,if that had come off then it would have no oil pressure.