[Mobil088]

I have been getting 4x4, dsc and brake light on my 335xi. It’s fbo with mhd stage 2 tune. Only when I do hard accelerations. The car jerks, the rpm fly up the tach and goes into limp home mode. An the 4x4 dsc and brake light comes on. As soon as I turn the car off the lights go off and it drives fine again until I floor the gas pedal again. I use protool to read code and the only codes showing is 55C3 and 5F2F. No other codes

[Sawced_335]

Originally Posted by Mobil088

I have been getting 4x4, dsc and brake light on my 335xi. It’s fbo with mhd stage 2 tune. Only when I do hard accelerations. The car jerks, the rpm fly up the tach and goes into limp home mode. An the 4x4 dsc and brake light comes on. As soon as I turn the car off the lights go off and it drives fine again until I floor the gas pedal again. I use protool to read code and the only codes showing is 55C3 and 5F2F. No other codes

I got the same lights but when trying to actually put in my mhd tune. Have you tried disconnecting the battery for 30 seconds or changing the tune?