CEL After sparkplug,oil change & air filter 05-S430 - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 07-13-2010, 08:08 AM Thread Starter
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CEL After sparkplug,oil change & air filter 05-S430

05-S430, 102k miles, Just changed plugs, oil & air filter - CEL light came on w/no noticeable issues. Any ideas? I am thinking possible MAF, how do I clean that? - cannot find any DIY in forums.

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post #2 of 3 (permalink) Old 07-14-2010, 10:01 AM
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Originally Posted by Wilburh1 View Post
05-S430, 102k miles, Just changed plugs, oil & air filter - CEL light came on w/no noticeable issues. Any ideas? I am thinking possible MAF, how do I clean that? - cannot find any DIY in forums.
If you do clean the MAF, make sure you use CRC MAF Cleaner. Be sure you clean the MAF without touching the SUPER SENSITIVE WIRE. CEL will come on if you use too low an Octane, your Gas Cap is loose or you have other Engine problems. Go to Autozone and they will pull the code(s) for FREE. It may be an actual physical problem or a simple solution.

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post #3 of 3 (permalink) Old 07-15-2010, 05:36 AM
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Did you use the throttle manually while under the hood, I was told never to do that since it could set a code.
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