If I were going to get a tune I would get Rocketchip....either Stage 1 or Stage 2. Jeff did it on my W210 and I was very pleased. I've hesitated doing it on the CDI because the stock performance is so great.

 

Nice, He has a dyno ? Or you sent him the ecu or tuned it by obd2v

 

He's in Red Lion, PA... With the W210, I was able to drive to him. He pulled the ECU and replaced two chips. Alternatively, I could have pulled the ECU and mailed it to him.

With the W211, it's done through the OBD2 port....no hardware modifications. But I assume that, in that case as well, it's possible to pull the ECU and send it to him.

Out of curiosity, what's your motivation for the tune?

 

More power lol, remove egr and swirl flaps as they are known issues on the om648!
I’m gonna upgrade intercooler and do the downpipe with no cat.
I live in NY i might as well go and drive to him thank god he lives around here!

 

Let me know how it goes. My thought was to wait for EGR and/or swirl flap failure before pursuing a tune.

FYI here's info from Rocketchip that I got back in 2015.

No problem tuning the 05 E320 CDI. I either need the ecu or car in my possession to tune it.

Mercedes E320 CDI

E320 CDI generating 201hp / 369ft-lbs (oem) 499nm
Stage1 +44hp / 52ftlb (increases) plus vmax limiter lifted.
Egr dialed back/reduced, but not deleted.

Cost $385 for stage1, plus return shipping for mail orders.

Add $100 for off-road emissions delete tuning, and Add'l $50 for stage 2 for larger turbo.

 

Thats probably the best deal! I don’t care about egr My car is gonna be used for “off road use” ?