2016_M276

Hello, I have a 2016 E350 M276 with 75K

I have experenced a possible misfire intermittently for the past week. this car has been flawless for the the 70k i have owened it.

Scan tool showes "NO Faults"
Engine Light Blinks during this issue.
Problem fixes it self in a few minutes.

any sugesstions?

S-Prihadi

What scan tool are you using ?

PeterUbers

Oil in engine wire harnesses? Cps or solenoids leaking, coils and plugs need replacement, gas cap on tightly?

common issues.

bad gas?

what code reader - icarsoft?

Arrie

Check that you have no oil in the wire harness of the cam shaft position sensors and the “magnets”. This is easy check by just pulling the connectors and checking them for oil. If oil is found replace the part and better yet replace them all as they will all go soon after you find one leaking.

CaliBenzDriver

Your CEL is reportedly blinking without any active/pending code... wait until it glows solid then any scanner will be able to pick up on that.
You need to collect hard evidence of issues to help guide you to solutions.


Minimum scheduled maintenance is good but sometimes often times it's not enough to keep modern vehicles on the road.

You've got to test things out to land the right fix -Or you will soon have a complete parts store inventory in your garage...


1-- SPARK :
A lot of things can help contribute to misfired mixtures.
I would move the coils (and plugs) around on one bank while suspecting a cracked coil boot.
See what cylinder the scanner reports as bad!


2-- FUEL :
After getting done with spark you're going to check on fuel pressures and "LongTerm Fuel Trims" bank1/2 data inside the ECU (Leave the direct injectors alone!) .


3-- CONTROLS:
After that things will get more strange odd.
Prepare by getting a CTEK float charger to help keep up your main battery.
Do a CAR REBOOT to help temporarily sanitize soft-crashed modules.

Check out this w212 thread...
Troubleshooting quickly is simple for nobody.

AllPhonesAretap

if it's not solid then it's not broken yet! That's what my car did before my low pressure fuel pump went out. Your car has three! A CEL would be thrown by the Low pressure or high pressure pump. P1CCF= Low pressure pump must be replaced.