Comments on: A/C Air Conditioner Diagnostics with trouble codes list, Reset, Sensor Data

By: Dee Joost

Dee Joost — Fri, 18 Aug 2017 23:13:36 +0000

Just got price for ac condenser $3200 for a 2003 SL500 (42,000mi) Mercedes 42,000 mi

By: James G Madison

James G Madison — Thu, 03 Aug 2017 19:12:56 +0000

need earlier version 2002 without digital readout

By: Kajtek1

Kajtek1 — Sat, 01 Apr 2017 04:18:21 +0000

Having 3 different MB models – all of them start displaying sensors after pressing REST, but here is where the different scrolling applies. (when you have climatronic with no REST button, you need to use advanced scanner, or replace climatronic with one having REST)
-on single zone R129 you scroll by pressing fan buttons
-on dual W210 you scroll by pressing left and right Auto
-on 4-zone W211 you scroll by pressing left temp adjustment.
4 zone displays more sensors
00 has to be inside cabin per my observation, so my guess 00 and 01 are front and rear of the cabin, but could never find official data.

By: Kajtek1

Kajtek1 — Fri, 31 Mar 2017 15:31:44 +0000

Good info, but does not explain how to use the data.
Per my experience you need to read the sensors at least twice in different conditions.
1 on cold car before engine start and before sun can warm the cabin. All the temperature sensors should show the same, usually with +- 3F differences. Very common evaporator sensor failure will show temperature very high
2 a minute after restarting car that was sitting on hot parking lot. This will allow to see if compressor is building the pressure and how the cores work.