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GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

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Old 09-03-2019, 12:54 PM
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GL450
power steering fluid
I need to add a little PS fluid to my new to me 2012 GL450. After looking on the internet, they said to only use Pentosin CHF 11S. Then I actually looked in the manual and they said to use approved fluid OR Dextron 3 ATF, just like you would put in an 83 Buick. What should I use?
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Old 09-04-2019, 09:54 AM
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GL450
According the operator's manual: MB power steering fluid (Q-1-46-0002) or approved Dexron III ATF
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Old 09-04-2019, 02:34 PM
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Thanks
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Old 03-30-2023, 12:51 PM
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07 GL450
I just wanted to be sure that I wasn't mixing two different kinds of lubricant.
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Old 03-30-2023, 04:17 PM
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Now just one GL450 with EORP.
Who knows what prior owners put in it.
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