And to top it off. Somewhere along the repair process I broke the tee
fitting on the injector fuel return line, darn! Mercedes only sells the
whole assembly and the fitting I broke isn't available. Tried to get the
broken piece out of the hose even that I haven't able to remove it yet from
the hose?
Bob Massmann
2012 ML350 BT
-----Original Message-----
From: Buggered Benzmail via Mercedes
Sent: Friday, March 04, 2022 11:41 AM
To: Mercedes Discussion List
Cc: Buggered Benzmail
Subject: Re: [MBZ] My ML350 Bluetec Oil Cooler Seal Repair update
I applaud your efforts. Not an easy job.
--FT
Sent from iFōn
On Mar 4, 2022, at 11:15 AM, Robert Massmann via Mercedes
<mercedes@okiebenz.com> wrote:
Yes I am still trying to finish the oil cooler seal replacement on my new
to me 2012 ML350 diesel. I have the turbo back in and have to finish up
connecting the exhaust down pipe to the back of the turbo. I may have to
take the car to the dealer or a European indy to compete the second step
after torqueing the (3) screws to ( 20 NM). Step two is tightening the
screws and additional ( 90 degs ). These screws face the engine bulkhead
and is under engine shielding. The top (2) are sort accessible but third
is on the bottom with very little access. Matter of fact I dropped the
third screw and still need to find it. Below is the link to where been
posting most of my photos of this project.
Things to Complete list
1) Install O2 probe at elbow of exhaust pipe
2) Install new CCV valve assembly
3) Install fuel rail to fuel rail connection line
4) Double check that all fuel injector supply nuts have been torqued
5) Install new fuel filter ( I will prefill filter with fuel )
6) Install charge air from turbo to front of engine and turbo intercooler
7) Reinstall injector return fuel line
8) Install air intake assembly that connects to the turbo. ( I purchased
new seal for this joint )
9) Install all remaining electrical connectors
10) Install rear shield located behind turbo
11) Install new inlet air filters, left & right
12) Install the rest of the engine shielding
13) double check that all electrical and mechanical items
14) Install coolant that was drained from engine
15) test start engine ( May take several tries as fuel lines need to be
recharged )
Link to Oil cooler seal replacement project:
https://mbworld.org/forums/m-class-w166/834751-2012-ml350-blutec-oil-cooler-leak-repair.html
Bob Massmann
2012 ML350 Bluetec 87,000 miles
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