Fellows, I am experiencing a slight surging effect when the car is driven cold at a constant (low) speed. Could this be due to leaky intake manifold isolators/gaskets? How can you tell when these things go bad? I am also experiencing my OBC resetting randomly and also locking up on certain functions. Is this OBC bad or could it be a low battery voltage situation? Any help you could give will be appreciated, related to these subjects and any other E30 M3 topics. Feel free to e-mail direct. Thanks.