BMW Error Codes for Wrong timing/ Timing Guide Rail failure
130F20 EXHAUST CAMSHAFT ANGULAR OFFSET TO CRANKSHAFT OUTSIDE TOLERANCE
120408 CHARGE PRESSURE CONTROL : SHUTDOWN AS A RESULT OF REACTION
130E20 INTAKE CAMSHAFT ANGULAR OFFSET TO CRANKSHAFT OUTSIDE TOLERANCE
150C11 IGNITION, CYLINDER 1 : BURN TIME IS OUTSIDE THE TOLERANCE

IMPORTANT:
1. Lock the Crank only when the 1st Piston comes in UPWARD Direction !!!! else you will get an engine that doesn't start like this :    • BMW F20 Cranks like Zero Compression ...  
2. Use proper timing tool I bought the cheapest one 23$ from Amazon which worked fine ( I get no benefit from your purchase) https://www.amazon.com/dp/B08GG3J8TN?...
3. Timing Kit I bought is of Febi for 150$ ( I get no benefit from your purchase) https://www.amazon.com/dp/B0754NCSNN?...
4. VANOS Sprocket Bolts 2 Qty bought directly from BMW Spare Parts Store.
5. Remove the ve Terminal of Battery before you start
6. Remove the AirDuct and Belt which I forgot to capture.
7. Put all parts back in reverse order.
NOTE: Change the Valve Cover Gasket if the gasket feels like Plastic and Hand Tighten the bolts the only 10Nm !!!