Oil Leak 2013 116D BMW 1 series 2.0 M sport


Timing chain was replaced last year and now have an oil leak from the main seal on the engine. Is this oil leak caused by the timing chain replacement?

I would not think changing the timing chain would have anything to do with an oil leak of any kind a year later. A year is a long time and most shops only have a 6 month warranty. Now if the the seal was replaced and is still under warranty then that would be another issue altogether.