E350 Oil Leak
Thread Starter
Newbie
Joined: Aug 2023
Posts: 3
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W212 E350 Bluetech
E350 Oil Leak
Hi all brand new here and have an annoying problem with my 2009 E350 W212 Bluetech.
The car developed an oil leak identified as oil cooler seals all seals were changed including turbo.
One week later another oil leak identified as rear crank oil seal this has been changed however the oil leak persists can anyone shed any light on the problem.
many thanks
jtw73
The car developed an oil leak identified as oil cooler seals all seals were changed including turbo.
One week later another oil leak identified as rear crank oil seal this has been changed however the oil leak persists can anyone shed any light on the problem.
many thanks
jtw73
Out Of Control!!
Joined: Apr 2019
Posts: 12,253
Likes: 6,916
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
seals keep popping ... good days are behind
Hi all brand new here and have an annoying problem with my 2009 E350 W212 Bluetech.
The car developed an oil leak identified as oil cooler seals all seals were changed including turbo.
One week later another oil leak identified as rear crank oil seal this has been changed however the oil leak persists can anyone shed any light on the problem.
many thanks
jtw73
The car developed an oil leak identified as oil cooler seals all seals were changed including turbo.
One week later another oil leak identified as rear crank oil seal this has been changed however the oil leak persists can anyone shed any light on the problem.
many thanks
jtw73
Stop just getting seals replaced.... instead seek the root cause.
Have the cylinders inspected for physical damages and individual compressions measured to assess cylinders wear (never mind leaky valves here).
I am going to guess you have worned out piston rings caused by
Have you ever found your dipstick popped out before ??
Last edited by CaliBenzDriver; Aug 30, 2023 at 05:17 AM.
Thread Starter
Newbie
Joined: Aug 2023
Posts: 3
Likes: 0
W212 E350 Bluetech
Oil Leak
Many thanks for your reply, looks like its the sump. leak is from rear left hand corner i understand Mercedes don't fit gaskets !! anyway its in the shop next week.
