Mass Airflow sensor - Mercedes Benz SLK Forum

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#1 Old 11-21-2013
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Question Mass Airflow sensor

I had a bad (dirty) mass airflow sensor when I bought my 230. I replaced it with a new OEM part for $300. Now it's 8 months or so later and my check engine light just came back on. I know it's not necessarily the same problem again, but in case it is, can I get just as good performance out of one of the $50 models you find online? Can I just clean the current one and reset the fault again? Should I check the oil separator to fix the problem more permanently?

Thanks for the help in advance.
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#2 Old 11-21-2013
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Clean it first

https://www.slkworld.com/slk-r170-cla...-r170-slk.html

you get what you pay for if you pay less than you should online


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#3 Old 11-22-2013
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Yes you can clean your maf, just be sure to use maf cleaner.
& yes you should check your oil separator.

I have yet to hear of someone getting a cheap maf & it works for mor than a few weeks.


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#4 Old 11-26-2013
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$166 at Autohausaz if you need to replace the MAF again. It is the OEM part.
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#5 Old 11-26-2013
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Quote:
Originally Posted by leapyfish View Post
Yes you can clean your maf, just be sure to use maf cleaner.
& yes you should check your oil separator.

I have yet to hear of someone getting a cheap maf & it works for mor than a few weeks.
You can also fit an oil catch tank which will minimise the amount of oil in the air inlet tract. Have a search for a thread on how to install.
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