jvakos

@PeterUbers - nope it’s never thrown a code and MB dealer for 2 years (while still under warranty) said it’s normal and they couldn’t recreate the issue.

I’m gonna pull my cam sensors and see if there’s oil on those as I was getting the sputtering start about every third or fourth time before changing the sensors, and it went away for about six months and just started again.

wonder if there is oil on the sensors if that likely is the cause of the sputtering start.

PeterUbers

And maybe the vibrations and the capillary action caused more oil to sneak in the pins ... you'll know immediately after you hit it all with crc cleaner ... if it's perfect start you know the culprit

fireball27

Just saw this on YT. YT site has alot more links and applications to various models/engines.

Mercedes "Sacrificial Pigtail" (Just the pigtail) Mercedes Camshaft Solenoid Harness - Genuine Mercedes 2711500156 | FCP Euro

AMGfifty5

interesting, I thought these wouldn’t fit.

GinDistiller

They only fit the magnets which are less likely to be a big leaker (it seems like the sensors on top are more problematic), but I installed them on both of my M157s because the magnets are much more annoying to replace vs the one bolt per sensor on the others. Cheap insurance!

fireball27

As I saw it on the FCP site, they also supply pigtail for cam sensors too.

AMGfifty5

I left a comment on the fcp video and they confirmed same part For cps and magnet

PeterUbers

So it's confirmed these harnesses work for magnets and cps? I'm about to buy 8 of them

GinDistiller

Harnesses are different so there should be 4 of one part number and 4 of another. Sorry I don't have the numbers handy.

Mojo20032004

Buy them, if they don't work for the magnets, il buy the 4 off you and pick them up since I'm local!

PeterUbers

i have 4 on the way - I'll first try them on the cps and report back

fireball27

I just bought that sensor kit(3 of them had oil) and pigtails for magnets.

Mojo20032004

Do the pigtails work for the magnets?

fireball27

I don’t have them on hand, 8 days from today. But based on their site and comments on YouTube, yes they work for magnets and sensors.

a1bray

Any updates on the pigtails? I'm mostly wondering if they work on the cam sensors...pretty sure already that they work on the pucks...

PeterUbers

they do not. See my post in another thread; the plug shape for the magnets is different than the cps

https://mbworld.org/forums/w212-amg/...rs-leak-9.html

a1bray

Thanks for the link, I hadn't been following that thread...too bad, it sounded like a cheap way protect the harness....

Htownbenz

I have documentation and pictures of this happening

QUOTE=s550hollywood;8675219]Anyone having this happen to a M278 engine? If so, Mercedes Benz of Germany wants to hear about it, I have a direct line to them regarding this issue on the M278 engine and they are wondering if a recall is necessary.[/QUOTE]

threeMBs

Are there any initial steps required BEFORE camshaft position sensors harness is disconnected? Like "putting" car's electronics to "sleep" via locking the car (with hood already raised) then observe some wait time period or disconnecting battery's negative cable? Or is it just as simple as an oil change with just the engine off and nothing else is required? TIA

GinDistiller

Nope, nothing special as long as the engine is off

threeMBs

Thank you!

Faast

Getting ready to check and replace any sensors and solenoids that need replacing. Cam sensors at FCP Euro ( genuine - $51 ) vs Bosch (OEM - $24) so is it worth paying for life time replacement for twice the amount?

Is Bosch brand OK if I do decide to go that way where I only put 3-4K miles/year?

Thanks