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CCU not fuctioning at all
The CCU in my 300SDL has totally quit(no air flow). I checked the fuses in the fuse panel and they all looked fine. The CCU is "suppose" to be a rebuild. Any suggestions where to start? Could I wire it to stay on all the time? It is getting cold and a little heat would be nice.
Thanks A
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1987 300SDL 187,000 miles |
#2
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Before you replaced the CCU - did the car have the same symptoms?
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BENZ THERE DONE THAThttp://www.peachparts.com/shopforum/...c/progress.gif 15 VW Passat TDI 00 E420 98 E300 DT 97 E420 Donor Car - NEED PARTS? PM ME! 97 S500 97 E300D 86 Holden Jackaroo Turbo D 86 300SDL (o\|/o) |
#3
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No. It worked with the replacement CCU during the summer, became intermittent and now does not work at all. It just seems odd that it does not blow any air at all.
A
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1987 300SDL 187,000 miles |
#4
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Have you ruled out the blower regulator. blower motor, and/or temp sensor as suspect problems? Check your PM's (private mail)
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BENZ THERE DONE THAThttp://www.peachparts.com/shopforum/...c/progress.gif 15 VW Passat TDI 00 E420 98 E300 DT 97 E420 Donor Car - NEED PARTS? PM ME! 97 S500 97 E300D 86 Holden Jackaroo Turbo D 86 300SDL (o\|/o) Last edited by TX76513; 10-30-2007 at 08:56 AM. |
#5
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blinking light
Also,
The circulating light(button next to rear defrost) is blinking. TX76513, do you know how to test the blower regulator. blower motor, and/or temp sensor? I will search the forum to see if anyone has any tips. Thanks A
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1987 300SDL 187,000 miles |
#6
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Blower motor
You can test the motor by unplugging its cord and connecting the motor terminals directly to 12 Volts. If it runs, the problem is elsewhere. If it sparks but does not blow, the motor is frozen. If it doen's even spark, there's an open circuit somewhere inside the blower motor.
Jeremy
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#7
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Jeremy,
Do you know the best way to access the blower motor? Thanks A
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1987 300SDL 187,000 miles |
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