alx

I like it. What I don't like is the ****er throwing codes for adblue tank heater (open circuit- I assume the heater is gone- will diagnose further- will update the scr controller software first as there is a bug in the factory code) as well as for both nox sensors being out of range. Cleaned sensors, performed teach in, we shall see.

Heater is $900 (new updated part) and each nox sensor is $400. My labor is free lol.

Stupid **** injection

Also did service c- surprise surprise - the fuel filter is $90 and the air filters are $55 each - they come with the plastic top lid glued to them. Not to mention it requires removal of the cold side of the turbo plumbing to gain access to fuel filter. It also requires star/ das to reset air filter adaptations as well as let the scr controller know you added adblue. The things we do for Mother Nature...

But I love the w221 diesel as a daily driver. I am getting old I guess

Nuru

Try getting parts quotes from www.mercedespartssuperstore.com and www.getmercedesparts.com. Gee I wish you had put this on my S350 Long term maintenance Thread. I and others are putting in our experiences there.

https://mbworld.org/forums/s-class-w221/555447-s350-longterm-maintenance-issues.html

How many miles on your car?

I had a NOx sensor replaced recently too.

Nuru

Can you post pics of your installs? That would be very helpful to the rest of us!