E-Class (W212) 2010 - 2016: E 350, E 550

2016 E350 vs 2015 E400

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Old 07-23-2022 | 07:51 PM
  #51  
diesel_dan's Avatar
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2013 E550 sedan
Originally Posted by Left Coast Geek
any turbo car is going to have long term repair expenses above and beyond those of a similar non-turbo. there's turbo cooling, turbo lubrication, the whole intake path past the turbo is under positive pressure when you're on boost, which increases the likelyhood of intake air leaks, because the intake is under pressure, vacuum control systems for things like HVAC require extra measures such as a vacuum storage bottle,, etc etc etc.

there's a recent thread on here where replacing the turbo coolant hoses on a E550 turbo is going to cost $3000, but its only $300 worth of parts, the rest is labor as a whole lot has to be taken apart to access these coolant lines.
Yes I saw that thread on the turbo coolant lines, disturbing... I'm on the fence on the whole turbo versus non turbo reliability thing - you have (or had) a turbo diesel truck, and yes they are more expensive to maintain... But I'm wondering if it is the use of more plastics under the hood, and that a turbocharged anything is just going to have prolonged underhood heat, you stop moving the fluids and that is exacerbated. On our 6.0 PSD, there is a coolant part that is plastic that more and more failures are being noted (wye under the degas tank), is it the plastic itself? is it how many heat cycles it can endure? Is it that under the hood after you shut down Everything stays hot (hotter than a non-turbo)?

I can only imagine how hot the same engine bay in an E class is with the M157 beast...
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chassis (07-23-2022)
Old 07-24-2022 | 11:13 AM
  #52  
DubVBenz's Avatar
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Joined: May 2006
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From: Virginia
W212 M276 DELA 30 ; W211 OM642 ; R107 M117, Sierra 1500 LZ0
Originally Posted by Left Coast Geek
any turbo car is going to have long term repair expenses above and beyond those of a similar non-turbo. there's turbo cooling, turbo lubrication, the whole intake path past the turbo is under positive pressure when you're on boost, which increases the likelyhood of intake air leaks, because the intake is under pressure, vacuum control systems for things like HVAC require extra measures such as a vacuum storage bottle,, etc etc etc.

there's a recent thread on here where replacing the turbo coolant hoses on a E550 turbo is going to cost $3000, but its only $300 worth of parts, the rest is labor as a whole lot has to be taken apart to access these coolant lines.
Yes, the plumbing and packaging on those M278TTs makes this job very labor intensive. These cars are now at the age where all of that plastic is starting to crack.
Old 07-24-2022 | 11:19 AM
  #53  
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From: NYC
W212 E400
Originally Posted by Lokomotiv1
Hey man. If you are serious about selling it-lets talk. I'm in NYC and I'm in the market for e400
Call/text me tomorrow during the day. Two one two. 5339710.

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