emissions valve, opens at cold start to allow secondary air pump to pump air into the exhaust to light the cats.Over time, I've come to know (by necessity) almost every large item in the M54 engine bay ... but some items still are unknown to me ...
What is this engine part?
intake DISA valve
heater valve for the dual HVAC system
VANOS solenoid/ VANOS adjustment unit
hose to CCV from valve cover
that is simply an electrical connector you have circled, unless my eyes are missing something
The "box" with all the brown wires is a common chassis ground for several things.
that would be the high side.
Thanks Mark,ooooh- a pop quiz!
Here is a picture of the old engine-air filter and the new filter side by side.I wonder what the air filter looks like?
Armor All contains silicon. Silicon is deathly to the O2 sensors. Not worth using that stuff and having to worry about it being sucked in somewhere into the airstream going into the engine.I clean mine two to three times a year, I've done it on all my cars and my wife's as well. I use a generous amount of Simple Green from a pump spray bottle, a soft paint brush for stubborn spots and a stiffer brush for really stubborn spots (like around the power steering cap and bracket) and a gentle spray from a hose to wash the grime/dirt/grease away, top and bottom. I will dry what I can with a towel or rag then drive the car until the engine bay warms up enough to dry the remaining water. Sometimes I will "condition" the plastic and rubbery parts with a protectant like Armorall. Be sure to cover your power steering reservoir cap with a plastic bag to prevent water from entering thru the small weep hole before spraying anything! You may need a few paper towels to soak up the water that will accumulate in the wells on top of the struts, too.
Good advice, I'm sure. Silicone is a double edged sword and not appropriate in every situation. My mistake for generalizing.Armor All contains silicon. Silicon is deathly to the O2 sensors. Not worth using that stuff and having to worry about it being sucked in somewhere into the airstream going into the engine.