BMW 8 Series Throttle Valve Troubles: Fix & Expert Help

Hey there! I had nearly identical symptoms with my 2018 BMW 7 Series diesel last year. The delayed throttle response and stuttering were exactly what I experienced. Had the same fuel consumption issue too. Turned out to be a defective accelerator pedal module, which was connected to the electronic throttle control system. The garage ran a diagnostic test that confirmed multiple fault codes related to the throttle valve and pedal sensor. The repair involved replacing both the accelerator pedal module and cleaning the throttle body. It was quite a serious issue since it affected both driveability and safety. I got it done at the dealership as these electronic throttle systems are quite complex. My suggestion would be to get it checked soon, as driving with these symptoms could potentially cause more damage. Make sure whoever works on it has proper diagnostic tools for BMW vehicles. Best of luck sorting it out.

Thanks for sharing your experience! That's super helpful as it sounds exactly like what I'm dealing with. I'm relieved to hear it was fixable. Just curious, do you remember roughly how much it set you back for the whole repair? And has everything been running smoothly since then, or have you noticed any other quirks pop up? My main worry is getting it fixed only to have more issues surface later.

Hey again! Happy to give you an update! After getting it fixed, I paid 205 € for the accelerator pedal module replacement. The mechanic confirmed it was indeed the throttle valve causing all those annoying issues we discussed. I'm really glad to report that my car has been running like a dream since the repair, it's been about 9 months now. No more stuttering, no more delayed response when I hit the gas, and the fuel consumption is back to normal. Starting up in the morning is smooth as butter too. Haven't had a single throttle-related issue pop up since then. The repair was definitely worth every penny, and I'm actually kicking myself for not getting it done sooner. These newer BMWs are pretty complex machines, but once you get the right fix, they're solid. Honestly, if you're experiencing the same symptoms, I'd say just go for the repair. The peace of mind alone is worth it, and it'll probably save you money on fuel in the long run. Let me know how it goes if you get it fixed!

Thanks so much for all the detailed info! I bit the bullet and took my car to a certified BMW specialist yesterday. You were spot on, it was the throttle valve and pedal module causing all the trouble. They ran the diagnostics and showed me exactly what was wrong. The repair cost me a bit more than yours, but it's already made such a difference. The car feels completely different now, in a good way! No more stuttering, and that annoying delayed response is gone. Even my morning starts are back to being quick and smooth. Really appreciate you taking the time to share your experience. It helped me make the decision to get it fixed right away instead of waiting around and potentially causing more damage. I'll definitely keep an eye on things, but feeling pretty confident about the repair. Thanks again for helping me out with this!

iI have a 2011 BMW X5 50i that is getting a 2B22 code when scanned with carly. It says multiple misfires, notes it's the fuel management system and shows the freeze frame fuel pressure on bank 2 at 171hPa but bank 1 average is 0. So I assumed that either the sensor or the hpfp went bad. But the confusing part is when I look up (google)the 2B22 code, says that 2B22 refers to the throttle body actuator (bank 2). So I am confused as to what is going on here.

Start by checking the throttle body actuator on bank 2 for any visible signs of damage or disconnection, as the 2B22 code suggests. Ensure all electrical connections are secure. If everything looks fine, consider cleaning the throttle body to see if it resolves the issue. If the problem persists, it might be worth having a professional perform a more detailed diagnostic to pinpoint the exact cause. Keep me updated on your progress or if you have further questions!

Ignore the above...thought I was were I would post a new question.