What does the BAS ASR light mean in a mercedes 1998 E320?

Question edited for a lot more clarity.
Question moved to model category.

Did you have the radio or CD on when you were doing all this work? Low battery voltage can cause it along with other reasons.

https://www.google.com/search?q=1999+E320+BAS+ASR+light+on

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you may not be avail to disable, actually let me re-frame that, when the light is on the system is disable, limp mode.
is hard to do with out a scanner, but if you have one, replace your brake switch, and reset the light. the brake switch controls the ASR/ BAS/ STABILITY CONTROL/ THE CRIUSE CONTROL. CHANGE IT WILL FIX YOUR CAR.

Bas/ASR lit up all the time

Well, it could mean that the emergency brake has not been fully released.The ABS system light is on if something has occurred within the ABS system. Something faulty may have happened there, get it checked out!

ASR is the Anti Slip Regulaor or traction control not sure about BAS possibly Brake Assist System sounds like a brake issue or a bad sensor

its the brake swich 25 bucks trust me god bless

You have to get the coeds cleared by a garage .

ABS--BAS

Most likely cause is the 'stop lamp switch'
It is a electric switch located on the brake pedal inside the car, about half way up on the brake pedal.
Pretty cheap too, I think the switch is only like $25 bucks.
2 connectors on the switch and then it turns out.
hope that helps

try checking the plug under your passenger seat.. sometimes gets pulled out whilst moving seat.

ok, first you have to clear the codes.
in this type of cars you cannot clear codes with a regular obd II it has to be the factory scanner or similar. after you clear the codes drive it for a while. when light comes back on scan it again and that is going to be your true problem. if you replaced the switch but didn't clear the code the light will be still on because the computer doesn't know that you fixed the problem. so try it out and let me know if worked.