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Old Jan 26, 2022 | 12:25 PM
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Mercedes ML350 Bluetec 2012
Post New Member 2012 ML350 Bluetec

Hi all, just signed up as acquired my newest Mercedes, a 2012 ML350 Bluetec with about 86K miles on it. It is a very nice car but will need to complete changing of the oil cooler seal which are leaking. While I am at it I will replace the final fuel filter and the air intake filters. Are there any other items I should be concerned with while completing this repair, I do need some help in locating the link to the repair procedures for this job. I thought I say here in the forums with the listed steps.
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Old Jan 26, 2022 | 04:23 PM
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Welcome! Please post a photo of the ML.

Do a thorough review of the W166 sections of the site, there is a lot of information that will benefit you.
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Old Jan 26, 2022 | 05:31 PM
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Mercedes ML350 Bluetec 2012

This is my new ML350 Bluetec, previous cars, 1995 E300D, 1987 190D 2.5 Turbo, 1982 300D, and 1985 300CD
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Old Jan 26, 2022 | 05:32 PM
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Mercedes ML350 Bluetec 2012
I traded a 2004 BMW X3 when I got the ML
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Old Jan 26, 2022 | 06:11 PM
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welcome to mbwold...
i'd change all fluids and filters first...
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Old Jan 27, 2022 | 03:32 AM
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Welcome to the forum @rmassmann. Nice looking ML. All the best with it 👍
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Old Jan 27, 2022 | 04:19 AM
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Hi and welcome on board! Great to have you here. Lots of knowledgeable folks here can help you out if you have any questions.
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Old Jan 27, 2022 | 12:14 PM
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Mercedes ML350 Bluetec 2012
Thank You!
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Old Jan 27, 2022 | 12:48 PM
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Mercedes ML350 Bluetec 2012
This is the photo of the rear pan shield that was removed during my ML350 BT health check at the Mercedes dealer. MB dealer wanted $3600 to complete the oil cooler seal replacement other issue maybe rear main seal, but more likely oil cooler. I have ordered the oil cooler seal kit, new air filters and fuel filter when I complete the repairs myself. Other jobs I have completed engine swap on a 2002 BMW 525i and replacing the head gasket on a 1995 E300D, drove this car for another 150K miles after the repair. I have also changed out the starter on a 2004 BMW X3 which requires the removal of the intact manifold assembly, which the starter hides under. Will try and post updates as things progress.


bottom rear engine shield indicating an oil leak.
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