Dumb Question Thread - No Flaming Allowed

[fourmula1]

Intermittent crank. Airbag light on. Windows aren't fully closing when door closes. White noise from speakers with power on engine off.

Battery died and airbag light appeared around the same time, replaced battery. Car was fine this morning. Went back out and wouldn’t turn over.

There was an ews immobilizer fault, but it cleared.

Help would be much appreciated. Definitely seems electrical in nature.

[Slideways]

Curious, but what did you go with for boots and clamps? I bought the turner silicon ones, then returned them and ordered the OE boots and clamps...

Found a good set of boots off a used SMG intake lol. Even was able to reuse the one time use clamps on the intake side since they can be bent back with a little heat and pliers. The Norma worm clamps are also an option if you don't want to use the original clamps and buy the ear clamp tool. For the worm clamps, you have to tighten them snug to the point where the boot still can rotate a small amount, just don't go crazy tight.

[ugaexploder]

It's a solid piece and there is no issue removing it multiple times. The beauty of servicing the S54 is the full intake system is easy to remove compared to other BMWs. I wouldn't replace a thing under it. Maybe you can swap the TPS if the one near the oil filter is newer than the one on the throttle actuator.

Curious, but what did you go with for boots and clamps? I bought the turner silicon ones, then returned them and ordered the OE boots and clamps...

[Slideways]

That makes sense...main reason I was thinking about some of these components under plenum is I'm mapping out what items I should replace when doing the Karb box. Mainly because I don't want to remove and install the plenum a bunch of times.

How resilient is the Karb plenum? Mainly connection points and the little cable holder near the firewall?

Part of me wants to replace everything under the plenum so I don't have to remove it frequently and possibly break things when doing so. Is this an irrational thought process?

It's a solid piece and there is no issue removing it multiple times. The beauty of servicing the S54 is the full intake system is easy to remove compared to other BMWs. I wouldn't replace a thing under it. Maybe you can swap the TPS if the one near the oil filter is newer than the one on the throttle actuator.

[ugaexploder]

That makes sense...main reason I was thinking about some of these components under plenum is I'm mapping out what items I should replace when doing the Karb box. Mainly because I don't want to remove and install the plenum a bunch of times.

How resilient is the Karb plenum? Mainly connection points and the little cable holder near the firewall?

Part of me wants to replace everything under the plenum so I don't have to remove it frequently and possibly break things when doing so. Is this an irrational thought process?