What is this guy going on about?
05-17-2023 | 10:16 AM
#26
Out Of Control!!
Joined: Jun 2004
Posts: 12,139
Likes: 2,216
2014 E63S; AMS 100 octane ecu tune; edok tcu tune; BB intakes; dyno tuned
12-29-2023 | 08:05 PM
#28
Junior Member
Joined: Jan 2016
Posts: 18
Likes: 0
From: Seattle, WA
2015 E63s, 2015 GL63, 1987 2.3-16
I have a 2015 with 152k miles. Seems to have this issue.. I first replaced the oil cooler and gasket with brand new Mercedes parts, it was good for a few months then one day I checked the coolant reservoir again and there is a lot of oil in there.. not looking forward to replacing those two gaskets behind there as I already had the whole front of the engine apart for the turbo cooling lines, water pump, timing covers, etc..
12-29-2023 | 09:17 PM
#29
MBWorld Fanatic!
Joined: Apr 2019
Posts: 6,244
Likes: 3,862
From: Silicon Valley
MY'14 W212 M276 3.5NA @60kMi
CANCEL KILLER MIXER...?
2¢: heatsoak pressure may be what's pushing these gaskets over the edge.
We know oil crankcase can not build static pressure, on the other side of heat exchanger is the coolant cap venting above 5Bars right?
Do you think if you prevent the heatsoak by the superheated core and circulate coolant after stop with electric pump mod this failure can be cancelled?
The seals won't get cooked and the extreme pressure won't build up, right?
In any case less extreme oil temperatures should be beneficial for gasket and plastic materials.
We know oil crankcase can not build static pressure, on the other side of heat exchanger is the coolant cap venting above 5Bars right?
Do you think if you prevent the heatsoak by the superheated core and circulate coolant after stop with electric pump mod this failure can be cancelled?
The seals won't get cooked and the extreme pressure won't build up, right?
In any case less extreme oil temperatures should be beneficial for gasket and plastic materials.
12-30-2023 | 01:55 PM
#30
Junior Member
Joined: Jun 2023
Posts: 69
Likes: 39
From: FL
2015 E63 AMG S
I have a 2015 with 152k miles. Seems to have this issue.. I first replaced the oil cooler and gasket with brand new Mercedes parts, it was good for a few months then one day I checked the coolant reservoir again and there is a lot of oil in there.. not looking forward to replacing those two gaskets behind there as I already had the whole front of the engine apart for the turbo cooling lines, water pump, timing covers, etc..
