I have a 2010 320i Sport Automatic. 60k miles. In heavy slow moving traffic I get the low oil pressure warning light. It doesn’t happen on the motorway. The car drives perfectly. I’ve had it in at my trusted independent garage and they changed oil and filter. They found remnants of the chain guide etc but the problem has returned within a few hundred miles of driving. Because the car doesn’t go into Limp mode and drives as intended, my instinct is that it’s not causing any engine damage but it’s definitely spoiling my enjoyment of the car. I wish I could find out why it happens. Any ideas?