Getting 2003 R230 SL500 to pass emissions - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 01-21-2010, 06:33 AM Thread Starter
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Getting 2003 R230 SL500 to pass emissions

I have replaced a defective Mass Air Sensor on my 03 SL500 which appears to have rectified a problem with the check engine light and performance problems. The same day I went to have the emission test done on the SL which failed do the CPU readiness. I was told by the emission guy that the car needs to be driven so the codes can updates in the CPU. Is anyone familiar with this scenario? Are their other options ? Please advise ....Thanks
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post #2 of 3 (permalink) Old 01-21-2010, 07:24 AM
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Not sure what he's referring to by CPU "readiness".

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post #3 of 3 (permalink) Old 01-21-2010, 08:22 AM
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There are procedures how to make the adaptation in few minutes, but driving the car normally does it in couple of days.
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