P052E issue - PCV
Thread Starter
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Joined: Nov 2021
Posts: 109
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E300
P052E issue - PCV
Recently I got this issue... dreaded one as everyone discussed.. went to the dealer. Luckily, recently Mercedes sent a letter (extended warranty) to several including me that includes the fuel intake / PCV assembly. I gave the same to the dealer and now fingers crossed if they will cover. Otherwise it will be a 2K thing in my view... I did not reset the code myself. The dealer diag fee is 327 USD that i need to pay if I take it back! Anyone with any inputs on this issue?
Out Of Control!!
Joined: Apr 2019
Posts: 11,921
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
oil in harness... ECU $$$$
Recently I got this issue... dreaded one as everyone discussed.. went to the dealer. Luckily, recently Mercedes sent a letter (extended warranty) to several including me that includes the fuel intake / PCV assembly.
I gave the same to the dealer and now fingers crossed if they will cover.
Otherwise it will be a 2K thing in my view... I did not reset the code myself. The dealer diag fee is 327 USD that i need to pay if I take it back! Anyone with any inputs on this issue?
I gave the same to the dealer and now fingers crossed if they will cover.
Otherwise it will be a 2K thing in my view... I did not reset the code myself. The dealer diag fee is 327 USD that i need to pay if I take it back! Anyone with any inputs on this issue?
The more expensive issue right here is that failed PCV causes fatal ECU contamination with oil.
Make sure this is all repaired at once together with all evidence in place. If ECU fails 6Mo later with a dry PCV connector, then recall claim will no longer be available.
You may decide to act now by checking if ECU issue is already active.
🤞
Thread Starter
Member
Joined: Nov 2021
Posts: 109
Likes: 15
E300
The failed PCV system needing to be replaced is one thing.
The more expensive issue right here is that failed PCV causes fatal ECU contamination with oil.
PCV oil flods ECU: RIP.
Make sure this is all repaired at once together with all evidence in place. If ECU fails 6Mo later with a dry PCV connector, then recall claim will no longer be available.
You may decide to act now by checking if ECU issue is already active.
🤞
The more expensive issue right here is that failed PCV causes fatal ECU contamination with oil.
PCV oil flods ECU: RIP.
Make sure this is all repaired at once together with all evidence in place. If ECU fails 6Mo later with a dry PCV connector, then recall claim will no longer be available.
You may decide to act now by checking if ECU issue is already active.
🤞
Out Of Control!!
Joined: Apr 2019
Posts: 11,921
Likes: 6,769
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
collateral ECU damage.
yes, you see it well in the video, it takes 5mn.
inspect PCV connector... oil?
inspect ECU connector... oil?
Use pictures as simple evidence prior to repair claim being submitted.
Of course if you had an MB scanner you'd be able to read ECU faults status easily:
inspect PCV connector... oil?
inspect ECU connector... oil?
Use pictures as simple evidence prior to repair claim being submitted.
Of course if you had an MB scanner you'd be able to read ECU faults status easily:
- LAUNCH
- CARLY
- AUTEL
Last edited by CaliBenzDriver; Dec 7, 2023 at 06:10 PM.
Thread Starter
Member
Joined: Nov 2021
Posts: 109
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E300
ok.. i have given the car already to tge dealer.. did never open the hood before that.. but i am hoping they do a good job
Out Of Control!!
Joined: Apr 2019
Posts: 11,921
Likes: 6,769
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Ask and pay if you have to get this inspection done. $300 now is worth to 10G savings. This will help you with a factual paper trail of when oil was found there....
🤞
Last edited by CaliBenzDriver; Dec 7, 2023 at 06:38 PM.
MBWorld Fanatic!
Joined: May 2018
Posts: 3,048
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From: Long Island, NY
2019 E 450, 2016 E350 4matic (retired), 2018 Ford Edge Sport, 2008 Porsche Boxster
Emission controls are covered 8 years or 80,000 miles.
I believe the PCV valve/control is part of emissions controls.
I would insist this is a warranty item.
Just my $.02
I believe the PCV valve/control is part of emissions controls.
I would insist this is a warranty item.
Just my $.02
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Out Of Control!!
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
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Joined: Mar 2025
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P052E
The failed PCV system needing to be replaced is one thing.
The more expensive issue right here is that failed PCV causes fatal ECU contamination with oil.
PCV oil flods ECU: RIP.
Make sure this is all repaired at once together with all evidence in place. If ECU fails 6Mo later with a dry PCV connector, then recall claim will no longer be available.
You may decide to act now by checking if ECU issue is already active.
🤞
The more expensive issue right here is that failed PCV causes fatal ECU contamination with oil.
PCV oil flods ECU: RIP.
Make sure this is all repaired at once together with all evidence in place. If ECU fails 6Mo later with a dry PCV connector, then recall claim will no longer be available.
You may decide to act now by checking if ECU issue is already active.
🤞
Last edited by bridela25; Mar 10, 2025 at 08:01 PM.
