1 series F20 - P0015 error code
Discussion
Hi,
Had a "drivetrain error" warning light pop up couple of times this week. I read the error code which came back with P0015 B camshaft position timing over retarded bank 1.
Not sure on what's the fix, but noticed once engine is warm - if you switch off and on the ignition it runs fine and the warning does not come back up.This makes it tricky to then take to garage for fix unless we leave it there for it to go cold again.
The engine runs fine, no rough idle and starts up fine. When the warning light comes up it cuts the power which is annoying. If re-starting engine up - it then pulls cleanly throughout rev range, no noticeable problems.
Any tips or tricks?
Had a "drivetrain error" warning light pop up couple of times this week. I read the error code which came back with P0015 B camshaft position timing over retarded bank 1.
Not sure on what's the fix, but noticed once engine is warm - if you switch off and on the ignition it runs fine and the warning does not come back up.This makes it tricky to then take to garage for fix unless we leave it there for it to go cold again.
The engine runs fine, no rough idle and starts up fine. When the warning light comes up it cuts the power which is annoying. If re-starting engine up - it then pulls cleanly throughout rev range, no noticeable problems.
Any tips or tricks?
Thanks for the offer of help
Took it into local BMW dealership today - after diagnostics, it turns out nothing wrong with the drivetrain, a simple software update resolved this.
Will see how it goes when I pick it up and next couple of days - bit disappointed this isn't covered by a recall or major/minor service from BMW.
Money for nothing for this type of work, 320D (E90) series and Z4 35i (E89) never had any issues like this - bit disappointing especially as it's a more recent model and owned from new.
Took it into local BMW dealership today - after diagnostics, it turns out nothing wrong with the drivetrain, a simple software update resolved this.
Will see how it goes when I pick it up and next couple of days - bit disappointed this isn't covered by a recall or major/minor service from BMW.
Money for nothing for this type of work, 320D (E90) series and Z4 35i (E89) never had any issues like this - bit disappointing especially as it's a more recent model and owned from new.
As you predicted, it pinged up within 2 mins of leaving the BMW service/after sales.
Googling around, my guess is Vanos Solenoid might need cleaning up and/or injectors. Still not really feeling or hearing anything misfiring or lumpy idle - still pulls ok throughout rev range - which I thought would also be an indication.
It's back in for some free diagnostics this time - I am guessing mechanics rely on this to find an issue, and so will have to step through this.
The drivetrain warning does only pop up on cold starts, if weather is a bit warmer or been on a fairly recent drive - it won't flash up. Apparently they took it for a test drive and gave the green light - guessing they didn't wait for engine to be cold etc.
Googling around, my guess is Vanos Solenoid might need cleaning up and/or injectors. Still not really feeling or hearing anything misfiring or lumpy idle - still pulls ok throughout rev range - which I thought would also be an indication.
It's back in for some free diagnostics this time - I am guessing mechanics rely on this to find an issue, and so will have to step through this.
The drivetrain warning does only pop up on cold starts, if weather is a bit warmer or been on a fairly recent drive - it won't flash up. Apparently they took it for a test drive and gave the green light - guessing they didn't wait for engine to be cold etc.
It was the Vanos solenoid in the end- it’s what I guessed it might be from driving it, OBD II code and googling.....in the end they swapped it with the other solenoid to confirm it was the faulty solenoid.
Rather than cleaning and re-inserting, apparently BMW UK won’t let them do this so it was £80 for a new one- £184 for fix (+ £160 for 1hr diagnostics).
Not bad considering my wife wouldn’t let me DIY on her car - bit frustrating how it was diagnosed and took 2 attempts, the second time being a lot more thorough. The fact you have to pay them to do a simple read of fault code - it could’ve been much cheaper.
Thanks for all your help on this thread.
Incidentally in lower and higher rev range it does pull harder now- I guess you get used to it’s previous state over time but quite noticeable since fix.
Rather than cleaning and re-inserting, apparently BMW UK won’t let them do this so it was £80 for a new one- £184 for fix (+ £160 for 1hr diagnostics).
Not bad considering my wife wouldn’t let me DIY on her car - bit frustrating how it was diagnosed and took 2 attempts, the second time being a lot more thorough. The fact you have to pay them to do a simple read of fault code - it could’ve been much cheaper.
Thanks for all your help on this thread.
Incidentally in lower and higher rev range it does pull harder now- I guess you get used to it’s previous state over time but quite noticeable since fix.
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