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Does clean air intake need to be programmed after replacing?

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Old May 13, 2018 | 07:56 AM
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2008 gl320cdi
Does clean air intake need to be programmed after replacing?

I recently had some strange error codes which threw me into limp mode. I pulled two codes p2015 intake manifold runner sensor and p2002 particulate trap efficiency below threshold.

The strange thing is that I have a green diesel tune that was installed 2yr/20k with the dpf delete option, which I thought would disable both thus preventing this. I pulled the intake to look for oil leaks and it was a bit wet around the swirl motor. At that point I realized what bad shape my intake was in so I ordered a new one and will change.

I talked to GDE which recommended an updated tune to see if would help. After the tune I was out of limp mode and when I rechecked I only had the 2002 code. He was going to research some on it. I think I either have a bad sensor which I have changed a few years back or some fault in the harness. I did see a perforation in the harness where it rubbed against itself. I have not taken it down from it’s attached clips to really look inside as I am doubting it wore through the wire insulation.

Anyway my my main question is whether I need to have calibrated to Ecu after replacement by the dealer.
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Old May 13, 2018 | 01:29 PM
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1922 Ford Model T / no OBD
Did you remove DPF from the car, or just delete it from computer memory?
I don't think dealer will want to touch an engine that is whacked out of factory settings.
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Old May 13, 2018 | 01:36 PM
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It is gone. I probably would bring to an Indy. Dealer only for alignment or anything Indy can’t handle. I have had many vehicles including Volkswagen and Porsche ,but I find Mercedes the absolute worst on over/ incorrectly diagnosing. At least the two dealerships close to me.

I may just reflash new tune just in case

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Old May 13, 2018 | 01:45 PM
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1922 Ford Model T / no OBD
You choose not to disclosure your location, but diesel cars in US are next to white elephants.
Some states like CA, FL, NY have them more, what made a demand for diesel mechanics and it is working.
In other states you say "I drive Mercedes diesel SUV" and mechanics will drop the jaws.
Funny experience I had with only Porsche I ever had. Driving autobahs in VW (brushed speedometer bumper where scale ended at 240 kph) I was dreaming about having Porsche.
When I moved to California, I finally could afford one, only to find is senseless.
Very bumpy ride on CA potholes, while you could not use the car potential with low speed-limits.
Took me over a year to sell darn thing.
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Old May 13, 2018 | 02:28 PM
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Lol. I live in Louisiana. I have tried both Baton Rouge and New Orleans which was by far the worst. I’ll have to update just did not bother to fill in.

I really enjoy my 08 320 cdi. Best thing about the tune was removing the dpf which really helped drivabitlty and alowed me use a better protecting oil. My oil analysis showed much less engine wear. Luckily right now they are to stringent here.
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Old May 13, 2018 | 02:56 PM
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My first MB diesel I bought was from Baton Rouge. Mind the story is over 20 years old, but hope that will help you putting owning MB in perceptive.
The guy who sold me MB over 20 years ago bought it used from a Baton Rouge dealer for $3500.
At the time beside dealer the city had only 1 independent shop who would touch MB.
So needing AC the guy took the car to the indy shop, where he he paid $1500 for new AC compressor and other thing.
I found whole pile of receipts that in 2 years of ownership the seller spend $4500 on car repairs, what include $2500 on AC work and AC still would not work. He gladly sold the car to me for $2400. I brought it to California and 2 years later sold it for $3500, but I made AC working.
My 2008 E320 Bluetec at 180k miles - as far as I can tell is on original DPF. I had to replace original engine when sucked water bend the rod, but took the engine apart and it still show honing marks on the cylinders. So beside build-up on intake and EGR and famous oil cooler, I don't see why the engine would not exceed 1/2 million without any major work.
Common conception says that DPF failure is result of other problems, not a problem on its own.
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Old May 13, 2018 | 03:02 PM
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I agree with all stated. My main complaint with the DPF is that you have to use an inferior oil with less protective additives.


That is my goal to reach at least a half million miles. I’m out 165k now.
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