M-Class (W166) Produced 2012-2015

non-return valves (check valves) - rattle noise

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Old Nov 17, 2020 | 02:31 PM
  #1  
arkim989's Avatar
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From: Boston MA
C320 sport 2003, c300 4matic sport 2013, 2018 GLE63 AMG
non-return valves (check valves) - rattle noise

Hello, does anyone know which Check Valves I need for my car? There are two types. Called the dealership they said they install the ones that fit and they can't tell which ones I need for my car. Trying to do it myself. Thanks
Car does not have rattling noise yet, but since its still kinda warm outside, just wanna takle it and not care about it in the future.

2012 ML350 3.5L 40K miles

2780503300
2780504000
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Old Nov 17, 2020 | 11:04 PM
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2017 GLE350 4MATIC
There is quite a bit written about this on this site and the other MB forum. Use the search function and google. If your engine isn't making a rattling noise, why replace them now?
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Old Nov 17, 2020 | 11:25 PM
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From: Boston MA
C320 sport 2003, c300 4matic sport 2013, 2018 GLE63 AMG
Originally Posted by chassis
There is quite a bit written about this on this site and the other MB forum. Use the search function and google. If your engine isn't making a rattling noise, why replace them now?
And that's the first thing I did and none of the posts specify which size your engine needs. Add check valves now because eventually, they will make the noise and I will have to drop more money to replace the chain tensioners as well which I don't want to do especially when it gets cold.
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Old Nov 23, 2020 | 03:05 PM
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'15 C400 and '15 ML350
https://www.tsbsearch.com/Mercedes-B...05-10-P-056435

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Old Nov 23, 2020 | 07:11 PM
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C320 sport 2003, c300 4matic sport 2013, 2018 GLE63 AMG
Thanks, so everyone who faces this eventually will need to order two sizes before the installment.
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