W212 AMG Discuss the W212 AMG's such as the E63

CPS Extension Harness, feedback

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Oct 8, 2024 | 11:33 PM
  #1  
E63SAMG2014's Avatar
Thread Starter
Senior Member
Photogenic
Liked
Loved
Community Favorite
 
Joined: Jul 2022
Posts: 464
Likes: 99
2014 E63 / 2017 CLS 63 / 2015 G63
CPS Extension Harness, feedback

This is from Amazon, any feedback ?


This person seems to have had a bad batch? I wonder…
Reply
Old Oct 8, 2024 | 11:59 PM
  #2  
CaliBenzDriver's Avatar
Out Of Control!!
Community Builder
Community Influencer
Liked
Community Favorite
 
Joined: Apr 2019
Posts: 12,006
Likes: 6,830
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
WORKING OUT ROOT CAUSE

Normally good pigtail extension should be well tolerated as if was not even there.

They are not cure all, only sacrificial throw away when oil has breached the burnt plastic sensors.

The description of this item is jacked up !!

.... adjuster magnet...

It talks about "3 wire magnet"
-- Cam CPS are 3 wires
-- VVT magnetic/solenoids are 2 wires


> It may well be that...
-- this particular product was a factory reject or

-- the CPS was already over cooked beyond its prime or

-- the upstream Lambda already got swamped to cause lean misfires or

-- the ECU saw these circuits disconnected during installation - Need simple fault reset!

Connecting a scanner always reveals nteresting modules status conditions.



Last edited by CaliBenzDriver; Oct 9, 2024 at 12:02 AM.
Reply
Old Oct 9, 2024 | 12:04 AM
  #3  
E63SAMG2014's Avatar
Thread Starter
Senior Member
Photogenic
Liked
Loved
Community Favorite
 
Joined: Jul 2022
Posts: 464
Likes: 99
2014 E63 / 2017 CLS 63 / 2015 G63
Originally Posted by CaliBenzDriver
Normally good pigtail extension should be well tolerated as if was not even there.

They are not cure all, only sacrificial throw away when oil has breached the burnt plastic sensors.

The description of this item is jacked up !!

.... adjuster magnet...

It talks about "3 wire magnet"
-- Cam CPS are 3 wires
-- VVT magnetic/solenoids are 2 wires


> It may well be that...
-- this particular product was a factory reject or

-- the CPS was already over cooked beyond its prime or

-- the upstream Lambda already got swamped to cause lean misfires or

-- the ECU saw these circuits disconnected during installation - Need simple fault reset!

Connecting a scanner always reveals nteresting modules status conditions.

Well said! Cheers to you man.

I’d assume if there are any troubles such as circuit related or not communicating with each other in terms of the cps and extension isn’t “synced” so to speak. There would be CEL or noticeble issue, correct?

Last edited by E63SAMG2014; Oct 9, 2024 at 12:06 AM.
Reply
Old Oct 9, 2024 | 11:10 AM
  #4  
PeterUbers's Avatar
Out Of Control!!
 
Joined: Jun 2004
Posts: 13,799
Likes: 3,229
2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Originally Posted by E63SAMG2014
This is from Amazon, any feedback ?


This person seems to have had a bad batch? I wonder…
why would it take hours to diagnosis these pigtails as being the culprit - scenario:

- car is running fine, now slap on these extensions for oil creep protection

​​​​​​- start said car up

- car "idols" erratically

- shut said car off and slap scanner on it

- all the codes will lead to the issue and then of course you'll know the last thing you did before it went from running normal just a few minutes ago to not running normal

- also did he clean the oil from the sensors - before adding the pigtails - when we remove the plug we "break the seal" so to speak, did he hit it with CRC?

- I have eBay ones on and they're arguably the same Chinese knock offs as Amazon and all is good.

- oh, and on I always get a kick out of "even passengers noticed it" - as if the reviewer needs more credibility by more people that have no credibility 😂

- "hugely expensive engine" - I think we know the mechanical capabilities right here of this reviewer

- "these should be removed from the market immediately" - now Nick has a messiah complex and wants to rid the world of the risk this poses to all owners - he's assumed a higher role in life and seems to care about people beyond himself. He's a saint 😝

Last edited by PeterUbers; Oct 9, 2024 at 01:49 PM.
Reply
Old Oct 9, 2024 | 01:22 PM
  #5  
E63SAMG2014's Avatar
Thread Starter
Senior Member
Photogenic
Liked
Loved
Community Favorite
 
Joined: Jul 2022
Posts: 464
Likes: 99
2014 E63 / 2017 CLS 63 / 2015 G63
Originally Posted by PeterUbers
why would it take hours to diagnosis these pigtails as being the culprit - scenario:

- car is running fine, now slap on these extensions for oil creep protection

​​​​​​- start said car up

- car "idols" erratically

- shut said car off and slap scanner on it

- all the codes will lead to the issue and then of course you'll know the last thing you did before it went from running normal just a few minutes ago to not running normal

- also did be clean the oil from the sensors - before adding the pigtails - when we remove the plug we "break the seal" so to speak, did he hit it with CRC?

- have eBay ones on and they're arguably the same Chinese knock offs as Amazon and all is good.

- oh, and on I always get a kick out of "even passengers noticed it" - as if the reviewer needs more credibility by more people that have no credibility 😂

- "hugely expensive engine" - I think we know the mechanical capabilities right here of this reviewer
🤣 I agree with you! I’ll consider as gibberish 🤣
Reply
Old Oct 9, 2024 | 02:08 PM
  #6  
JettaRed's Avatar
Banned
Veteran: Army
5 Year Member
Community Influencer
Loved
iTrader: (1)
 
Joined: Nov 2016
Posts: 7,847
Likes: 3,498
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
I got the 8-pack and they work fine for me. Had them in a year now.
Reply
Old Oct 9, 2024 | 02:13 PM
  #7  
JettaRed's Avatar
Banned
Veteran: Army
5 Year Member
Community Influencer
Loved
iTrader: (1)
 
Joined: Nov 2016
Posts: 7,847
Likes: 3,498
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
Frightens easily. Poor speller. Has an EV.


Reply
Old Oct 9, 2024 | 02:47 PM
  #8  
CaliBenzDriver's Avatar
Out Of Control!!
Community Builder
Community Influencer
Liked
Community Favorite
 
Joined: Apr 2019
Posts: 12,006
Likes: 6,830
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
++++++ Nothing's simple...

the only question really is "CPS only" or "VVT solenoids" (magnets) as well ??

I think the best bet is to deal with all 8x for peace of mind: 4x 2-wires + 4x 3-wires.

And because these extensions FIX NOTHING... look at each connector for existing failure.

Then replace at your convenience... this is where I'm at!

I have installed pigtail/extension while doing spark plugs and witnessed my CPS were already cooked at 50kMi.

Now I am going back in with new CPS + pigtails and if everything was breached then I look into sourcing Lambda extensions more closely.


> The only thing that has me excited here is not knowing...
-- Will normal engine heat without "extreme heatsoaks" prevent cooking my new set of CPS??

- I believe near 95% yes but harness protection is still best practice.
✌️

Last edited by CaliBenzDriver; Oct 9, 2024 at 02:55 PM.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-1

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-2

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-3

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-4

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-5

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-6

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-7

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-8

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-9

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 02:14 AM.

story-0
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-1
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-2
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-3
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-4
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-5
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-6
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-7
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-8
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-9
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE