[mrCBR600]

I was driving fairly spirited last night on the highway when the yellow half engine light came on. I had reduced power and drove for another 10 miles and than turned off the car and let it sit for about 1/2 hour. Came back and started it back up and no light and full power again... I am running jb3 on map 3 and have a BMS DCI. Other than that its stock. Should I remove my JB3 and take it in to the dealer or is it fine? Do you think I have a stored code? I don't want to take it to the dealership if I don't have to, of course!

Thanks for any advice!

[maswastage]

It could be a false alarm, just a glitch caused by your map. If I had to bet though, my money would go on it being your HPFP.

[stamd1]

I got the 1/2 engine warning in yellow also. After the second time, I took the car in for service. The code indicated a faulty vanos. BMW recommends switching the vanos which they did. Got the car back yesterday and the same 1/2 engine yellow warning came up again. Apparently replacement is the next step. Anyone else have this problem?

[socaldz]

Originally Posted by stamd1

I got the 1/2 engine warning in yellow also. After the second time, I took the car in for service. The code indicated a faulty vanos. BMW recommends switching the vanos which they did. Got the car back yesterday and the same 1/2 engine yellow warning came up again. Apparently replacement is the next step. Anyone else have this problem?

I had the same problem a couple of times. They finally did replace the vanos

[wesborl898]

they replaced inlet/outlet vanos the first time FTW!

[kd6lor]

This happened to my 335. In the end, they replaced the rear turbo. Can't imagine what that would have cost if it weren't under warranty.

Paul