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W210 A/C Compressor Fuse?
Hey guys,
So I went to get our E430 charged today, but the guy told me that the compressor isn't engaging, and the system is full. I decided to give her a look-see, and I cannot for the death of me figure out which fuse the compressor is on, if any. Closest I've got is Fuse 4 and 7 for the auto climate control and blower motor, but the controls and blower do turn on. Any help or direction is immensely appreciated (a rebuilt compressor costs 500ish bucks :eek: ) -Carlen |
Also don't know if the clutch could be stuck or the relay is shot; any idea where these are located so I can check it out?
Thanks, Carlen |
Do you have the pushbutton unit? If so, you can extract trouble codes without additional tools.
There is a thermal fuse in the clutch which cannot be replaced. I don't know which other fuses run the AC system. |
How do I pull those codes?
It's my mom's car, so I haven't really investigated too much into how to fix things... Thanks, Carlen |
Climate Control Codes
Set the left side high and right side to low on your climate control - now here's the fun part. - pasted from another thread
Ignition ON Temperature selector left "HI", right "LO". Within 20 seconds, press REST and EC simultaneously for more than 5 seconds The led in the RECIRCULATE button flashes and the display shows "di R" Press AUTO repeatedly until all DTC's (refer to DTC table) are displayed. Record each DTC as it is displayed. Each malfunction (short circuit, open circuit, etc.) has a specific DTC assigned to it. The letter "E" (Error) is displayed in the left side of the display and the DTC is displayed in the right side of the display. By pressing the right AUTO button, the next DTC stored in memory will be displayed. To erase: Only possible after all DTC's are read out. Simultaneously press both AUTO > 2 secs. "d" will be displayed in the left side of the display window and "FF" on the right side. To cancel erase: By pressing AUTO the current faults will appear again. Set temperature selector to normal setting. Turn ignition OFF to end test. DCT table: B1226 - In-car temperature sensor (B10/4) B1227 - Outside temperature indicator temperature sensor (B14) B1228 - Heater core temperature (B10/1) B1229 - Heater core temperature (B10/1) B1230 - Evaporator temperature sensor (B10/6) B1231 - ECT sensor (B11/4) B1232 - Refrigerant pressure sensor (B12) B1233 - Refrigerant temperature sensor (B12/1) B1234 - Sun sensor (B32) B1235 - Emissions sensor (B31) B1241 - Refrigerant fill B1416 - Coolant circulation pump (M13) B1417 - Duovalve (Y21y1), left B1418 - Duovalve (Y21y2), right B1419 - Electromagnetic clutch (A9k1) B1420 - Idle speed increase B1421 - Pulse module (N65) B1422 - Series interface (K1) connection to instrument cluster (A1) B1423 - Switchover valve block (Y11) B1424 - Activated charcoal filter actuator (A32m2) open B1425 - Activated charcoal filter actuator (A32m2) closed B1432 - Non-USA DTC B1459 - Series interface (K2) connection to instrument cluster (A1) B1462 - Wide open throttle (WOT) position signal: diesel engines |
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It's giving me B1234, which is the sun sensor; I assume thats the sunroof temp sensor? Thanks a billion, Carlen |
Nope, I did more searching and its those little lobes on the dashboard...
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You can safely ignore the sun sensor code. Is the EC lamp on?
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