A/C BLOWS COLD AIR ONLY PASSENGER SIDE
 

Hi, I have a 99 E320. when the AC is on, it blows cold air on passenger side only, the driver side just normal air.
However, the heater works properly on both sides.
The diagnostic test showed the following results:

Sensor Data
1 84
2 80
3 93
4 89
5 87
6 197
7 7
8 111
9 27
10 3


Error codes
EB1 234
EB1 417
EB1 418

Any idea what might be the cause of the problem?

In a BMW 5 series when it does this it is low on refrigerant. I don't know if Mercedes is the same.

Yes it is the same. Its low on refrigerant.