Eurow

So, I recently bought a Snap-On Modus Ultra Scanner w/ all the cables and chip adapters and decided to see its' capabilities on my W210.
Engine and transmission tested code free - wasn't expecting any codes.
Next I went into the cluster controls on the Modus and and checked codes and found:

1040 - No CAN communication with engine
1041 - No CAN communication with traction control
1043 - CAN BUS error
1470 - Fuel level sensor open
1471 - Ambient air temperature sensor short
1752 - Connection to illumination module
1755 - K2 ACC to cluster short circuit

Now, I was surprised since I haven't been experiencing any issues what-so-ever. I cleared the codes, ran a pointer sweep and display demo with the Modus and all functioned properly.
Codes have not returned yet.
The only thing that sticks out in my mind is that around 2 years ago, the stepper motor for the speedo went bad and I replaced it with a motor off a spare cluster I keep for parts.

Now, I'm pretty sure the cluster issue I had two years ago is what triggered and saved these codes, but any input/opinions would be greatly appreciated.

Plutoe

Yep, if they cleared and did not return, they were old saved faults---not to worry----by yourself a hot dog!

Eurow

Thanks Plutoe, I was thinking the same, including the hot dog.

BTW, I hope I made you proud by scanning properly before begging for help, haha!

kajtek1

Scanner should tell you if the code is current/pending or stored/historic.

ItalianJoe1

I see stored codes in every car that I scan. Most of the time, they mean absolutely nothing. If you can clear them and they don't return, no further action necessary.