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A/C Diagnostics Codes
On the 1995 C280:
I recently reviewed 4 stored faults in the AC system, retrieved via PBU. I then deleted the 4 faults, and a week later checked out what came up. 2 of the 4 came back, and always come back. The 2 recurring codes are: 60: A/C Compressor Electromagnetic Clutch (A9k1). Cause: Short or Open Circuit. Intermittent (not continuous). 82: Switchover Valve Block (Y11/3), Tempering Flap. Cause: Short or Open Circuit. Intermittent (not continuous). Now I am not especially worried because they are Intermittent and not continuous codes. But what exactly do they mean? Thanks for the help.
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2006 E350 w/ 155k miles (Daily Driver) Previous: 1993 300E 3.2L Sedan w/ close to about 300k miles 2003 E500 Brilliant Silver (Had 217k miles when totalled!) 1989 300E with 289,000 miles (had for <1 yr while in HI) 03 CLK 500 cabrio (Mom's) 2006 C230k (Dad's) 1999 S420 (Mom's/Dad's) 2000 C230k Sport sedans 2001 CLK320 Cabrio (Mom's) 1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!) |
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The A/C pushbutton applies current directly to both of these componets, & if the draw is too high or too low then you will get this type of code! IN most cases they are meaningless, however if the A/C clutch current draw is too high then it can damage the control unit.
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