[Eliminator]

For those who may encounter this problem and search the board months from now, I'll post here the problem, the diagnosis and solution.

Problem: Increased Emissions light shows up during drive. Picture of yellow motor stays for 10 seconds then goes to a Service Engine Soon light - SES - and stays there permanently. The light may go away every 5 or 6 days for about 2 or 3 starts. Then it returns. Car runs fine. No other faults Ie. DSC, Park Assist, ABS, etc.

Diagnosis: Your car has a Secondary Air Pump and two valves that activate during the first 240 seconds to blow hot air through two valves, one on each bank, on to the catalytic converters. Simply to heat them up so they work. Cats don't work cold. Does NOT affect the driveability of the car that I can tell. The valves sometimes get stuck - open or closed. Open and the exhaust travels backwards in to the Secondary air pump condensing and filling the pump with water. This is where the customer usually hears slurping sounds, like a fat 11 yr old bold that just came from 7-11, during start-up.

Solution - BMW OBDII showed Bank 1 valve faulty. It was changed along with an o2 sensor from Bank 2 side of the engine. It was the o2 sensor before the primary cat on Bank 2.

My impressions -- After suffering from "Idle Valve" issue and never fixing that... it just went away 8 months ago and never came back, I am please the Faults were actually real. Car runs very good, I'd say better then before. Maybe the ECU has better readings to adjust air/fuel/timing with functional O2 sensors and valves stuck open can't help. Must be like an exhaust leak.

Hope this helps some folk during there search to fix "Increased Emissions" SES light since I found NONE during my search! G'day.