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3 votes

Keeping ECU powered up on a bench/standalone setup?

The ECU may have multiple power ports to draw power, as one pin may not be enough to provide it what it needs to drive everything. Another reason there may be more than one pin is if there's one pin ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes

What to replace besides the AC condenser?

There are two things I can think of to do besides replace the drier (as you suggested you were going to do). Along with what you stated, I'd replace the O-rings throughout the system. You'll have most ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
2 votes
Accepted

2021 X3 rattle/buzz near the foam headliner of the ceiling

It's probably loose screws that are supposed to hold the metal frame of the sunroof. See this link for more information.
Carguy's user avatar
  • 1,992
2 votes

Bmw e43 320d revving itself to verry high rpm

This sounds like what is typically called a diesel runaway. Since all diesel engines need to keep going is fuel and air, it can easily happen if there's a problem with the turbocharger leaking oil. As ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
2 votes

2023 BMW x3 m40i “Pre-mature” Oil Change

Modern engines need very little break-in. The 2023 BMW's are no expection. "Special" break-in oils are only found in racing applications. Here is what your Owner's Manual recommends for ...
Carguy's user avatar
  • 1,992
2 votes
Accepted

BMW 2001 325i Wierd fan-like noise in the engine when speeding

Get under the car on ramps or on a lift and look for a loose plastic shield. This could be the splash shield under the engine, part of a wheel well, a mud guard or any other thin, flexible plastic ...
MTA's user avatar
  • 6,549
1 vote

Should I flush coolant after using UV dye in coolant system?

Since dye solutions are designed (if one is chosen for the specific application) to dissolve completely in the solution, it is hard to imagine that they would cause a problem: particularly 1 oz of dye ...
BugFinder's user avatar
1 vote

Using slightly larger wire for repair

If this is a plain-vanilla 1-conductor wire that carries only power, the car won't care if you use a heavier gauge. The one time in a car that you should not use a heavier gauge is when the wire is ...
MTA's user avatar
  • 6,549
1 vote

1997 BMW M3 Failed Smog with High HC

Hi HC is due to incomplete combustion: there's unburnt fuel in the exhaust. There's many things which could cause this. I have an E46 M3, which has a similar engine, and from my own personal ...
GdD's user avatar
  • 17k
1 vote

Hoping to get rid of "no message" CAN error that even BMW engineers in Munich cannot/will not solve

Well, I ended up installing the trailer module ECU to satisfy the DME and EGS ECUs yearning for commms with the AHM (trailer) module. Not the solution I envisioned, but it worked at a lower cost than ...
TommyS's user avatar
  • 21
1 vote

BMW alignment made things worse

After eliminating mechanical causes for the car drifting to the right by swapping tires and checking for brake drag, you have to consider road crown or road tilt as a possible cause. Almost all roads ...
MTA's user avatar
  • 6,549
1 vote

BMW 2001 325i Wierd fan-like noise in the engine when speeding

First of all, I apologize for writing this post instead of a comment (due to not having enough reputation). In addition to the other responses, I'd like to mention that it's important to consider the ...
5n10m's user avatar
  • 50

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