[bluebee]

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?

 

[bluebee]

What is this engine part?

 

[bluebee]

What is this engine part?

 

[bluebee]

 

[bluebee]

 

[bluebee]

 

[bluebee]

 

[bluebee]

 

[bluebee]

ooooh- a pop quiz!

Thanks Mark,
I appreciate the help. What I'm doing is getting an annotated photo ready, for newbies and oldies alike, with all the visible parts labeled.

That way, anyone who opens their hood would know what everything is!

Thank you for taking the time and energy to help me in that endeavor!

 

[bluebee]

I wonder what the air filter looks like?

Here is a picture of the old engine-air filter and the new filter side by side.

The old one looked OK but I replaced it anyway.

It won't rain here for the next 10 months and I take the bimmer for a drive over the mountains at least once a week, so, there is a lot of dust in the mountain roads.

Do you guys actually "wash" the engine? I've never done that as I'm too afraid I'll wash the oil out of things that need grease and electrical components that aren't supposed to get soaked.

 

[bluebee]

Oh my! I'm never posting a picture of my (dusty) engine ever again!



PS: Is it silicone or silicon that you are worried about for the 02 sensors?

 

[bluebee]

In situ ICV location on the BMW M54 engine:
- CCV Replacement FYI - M54, by Jason5driver

In situ DISA location on the BMW M54 engine:
- CCV Replacement FYI - M54, by Jason5driver

 

[bluebee]

Intake manifold "air distribution piece" in the M54 engine by Jason5driver:
- CCV Replacement FYI - M54 (post #23)

 

[bluebee]

M54 ignition coils in-situ:
- Pictorial DIY for an M54 spark plug replacement on a 2002 BMW 525i E39 with 95K miles

M54 ignition coil #1, removed, showing #1 spark plug, #1 ignition coil, and #1 spark plug boot.

Old #1 spark plug removed from the M54 engine (at 98K miles) alongside a new replacement spark plug:

 

[bluebee]

Drain hose for the (driver side) M54 engine cabin air filter housing:
- CCV Replacement FYI - M54

 

[bluebee]

M54 throttle body assembly in situ:
E39 (1997 - 2003) > E39 how to clean throttle body

 

[bluebee]

M54 idle control valve (ICV):
- CCV Replacement FYI - M54

 

[bluebee]

M54 CCV, aka CVV, PCV, pressure regulator valve, etc.
- How to test CCV?

Fudman's in situ CCV "return pipe", "connecting line", & "vent pipe":
- DIY: CCV Replacement on an M54

 

[bluebee]

M54 starter motor in situ:
- CCV Replacement FYI - M54

 

[bluebee]

Identification of mechanical belt tensioners, in situ:
- How to tell if you have hydraulic or mechanical belt tensioners