Hello Community,
I need your help to isolate the 2845 issue.
Small history (sorry for the long post): 2007 Mini R56 with N12 (110k miles) has a check engine light on and engine produces a rough, metallic sound at idle RPMs.. Read the code and got 2845 Exhaust Vanos Solenoid fault.
Since we recently purchased this Cooper for my friend who came from Ukraine. We don't have any prior history or knowledge about the car's. We started from basis ( thanks for this forum threads):
Regards,
Sergii
I need your help to isolate the 2845 issue.
Small history (sorry for the long post): 2007 Mini R56 with N12 (110k miles) has a check engine light on and engine produces a rough, metallic sound at idle RPMs.. Read the code and got 2845 Exhaust Vanos Solenoid fault.
Since we recently purchased this Cooper for my friend who came from Ukraine. We don't have any prior history or knowledge about the car's. We started from basis ( thanks for this forum threads):
- Replaced the timing chain and used kit that includes Genuine BMW/Mini parts ( New chain, tensioner, camshaft sprocket bolts , etc).
- Replaced the timing chain sprocket
- Replaced the crankshaft seal
- Opened the oil pan, just to check for any plastic parts from previous chain guides - it was clean.
- Resealed the oil pan, replaced oil Mobil1 5W30
- Replaced the Exhaust Vanos Solenoid (not OEM, but also not cheap ~90$ )
- Replaced the Exhaust Vanos solenoid Switch Connector since previous was broken
- Deleted VANOS adaptations + Performed the VANOS adaptations using ISTA. Adaptations were made on cold engine, engine was working very rough and eventually failed
- Exhaust spread was 63.4 degrees ( 40-60 expected )
- Intake spread was 161.4 degrees (140-160 expected)
- Opened the engine again, checked timing ... it was a little bit off again. Replaced the IN, EX VANOS Camshaft Sprockets. Adjusted the timing. Made 4 camshaft spins - timing was perfect.
- Cleared all errors
- Deleted VANOS adaptations + Performed the VANOS adaptations using ISTA. Adaptations were made on cold engine again, engine was working rough initially, later succeeded adaptations
- Exhaust spread was 57.1 degrees ( 40-60 expected )
- Intake spread was 151.3 degrees (140-160 expected)
- The engine started working much more quietly - I thought it was a victory for a moment... but after 1-2 minutes, the Check Engine light came on again with the 2845 error. More and more engine warms up - it starts to work better and quietly.
- I swap vanos solenoids IN to EX and EX to IN, cleared the error, deleted and successfully performed adaptations. The values at the end of adaptations were mostly the same 57.2, 151.2 degrees.
- Started the engine, for a minute it was working normally - but later the same 2845 Exhaust Vanos Solenoid fault.
- I disconnected the connection pin from the exhaust vanos solenoid; the engine operates smoothly with no rattling noises at least while it is warm ( didn't have a chance to test while engine cold).
- I suspect the old and new one aftermarket solenoids are not great... Just in case ordered 2 new OEM Febi solenoids valves
- What should the proper voltage be for the EX Vanos solenoid? I've seen on forums/videos that it should be around 10.7-11 Volts, but with the ignition ON, I'm only getting barely 9.7V on connection pin.
- Also, what is the correct way to connect the solenoid pins? I'm just asking in case I messed up. I placed the yellow wire in slot 1 and the brown/orange wire in slot 2.
Regards,
Sergii
