R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

P 0638

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Old 12-15-2018 | 11:26 PM
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sergmur's Avatar
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2008 Mercedes R 320 cdi
Question P 0638

Cannot start the engine it cranks but not start, has P 0638 code. should I did something wrong then fixing the oil cooler leak. Please help what I need to do to start the engine?
Old 12-17-2018 | 08:05 AM
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R320, Astro, JSW, ST4
Please read this first:
https://idpartsblog.com/2018/06/28/l...eals-on-om642/

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