C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

WEIRD PROBLEM WHEN RAINING

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Old May 16, 2011 | 09:07 PM
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Norwichdelta06's Avatar
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2007 c230
WEIRD PROBLEM WHEN RAINING

My CEL comes on whenever it is humid outside only. And the funny thing is that AUTOZONE has a policy where they cannont read codes in the rain. And after about 3 run cycles the CEL goes away and it has never came on once when its warm out. Only occassionally when damp/moist? Any ideas? I dont want to bring it to MB just to have a code read and charged for it
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Old May 16, 2011 | 09:20 PM
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jogger's Avatar
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From: cincy-oh
02 S500
can you get the code reader in their tool loaner program and read it yourself?
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Old May 16, 2011 | 10:20 PM
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ambit's Avatar
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From: PA
09 CLK550
The code should stay in memory on the OBD. You can read it anytime.
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Old May 16, 2011 | 10:50 PM
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phister's Avatar
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From: fort worth, tx
06 C230 SS 6spd
+1 just have the code read when its dry. The CEL stores in the memory until its deleted. Then you can tell use the code and we can narrow it down from there.
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Old May 19, 2011 | 09:29 PM
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From: Jakarta, Indonesia
C240
The CODE should still be recorded despite it not occuring again. So you better get them check (or check yourself) when it's not raining and see what pops up.
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Old May 19, 2011 | 10:23 PM
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Norwichdelta06's Avatar
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2007 c230
Originally Posted by Silver C
The CODE should still be recorded despite it not occuring again. So you better get them check (or check yourself) when it's not raining and see what pops up.

NOTHING was SAVED!! :o( But maybe this can relate. When i took my car in for harsh tranmission shifting in the first 2 gears which im living with for the rest of my life. they told me the CPS sensor came up 125x times but kept going on away on its own. It was one loooooooooong print out let me tell you. Maybe thats it?
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