2017 E400 Wagon Mod Ideas?
Thread Starter
Junior Member
Joined: Apr 2021
Posts: 23
Likes: 7
From: Bay Area CA
2017 E400 S213
Thanks for the reminder to update. Oddly enough the tuner they sent me was unable to communicate with my cars ECU. After some back and forth over a couple weeks (busy schedule) they just ended up offering me a refund. CA recently passed some anti tuning regulations which made alternatives a hassle so I'm just running stock instead for now.
Sorry I can't offer a more insightful perspective!
Edit in other news one of my runflats actually uhh went flat lol and I replaced all of them with pilot sport AS3s. Definite improvement in ride quality - I haven't put the car into any handling type scenarios since doing so tho so I can't speak to that but on a spirited mountain drive a month or two back the run flats were constantly screaming in turns. Hopefully that issue is resolved
Sorry I can't offer a more insightful perspective!
Edit in other news one of my runflats actually uhh went flat lol and I replaced all of them with pilot sport AS3s. Definite improvement in ride quality - I haven't put the car into any handling type scenarios since doing so tho so I can't speak to that but on a spirited mountain drive a month or two back the run flats were constantly screaming in turns. Hopefully that issue is resolved
Last edited by FlightlessGreeb; Sep 9, 2021 at 11:42 AM.
Newbie
Joined: Aug 2021
Posts: 4
Likes: 1
E400 Wagon
Thank you for following up (and so quickly!). Do you mind sharing what the "sale" was on the Velos offering? This forum is a bit of a mess to navigate (sorry, appreciate it's here and all), and no one ever talks $$ even though I don't believe there is any rules against.
Sorry to hear about your tire issues.
As for the stock tires, mine were awful as well. However one of mine had a bulge in it likely leading to the noticeable shake at low speeds. TireRack had a closeout on the Continental Extremecontact dws06 and I've been very pleased with their ride quality and handling.
I'd still love a bit firmer of springs for this car though (I suppose only the fronts knowing the air suspension in the back), a tad more body roll than preferred.
Sorry to hear about your tire issues.
As for the stock tires, mine were awful as well. However one of mine had a bulge in it likely leading to the noticeable shake at low speeds. TireRack had a closeout on the Continental Extremecontact dws06 and I've been very pleased with their ride quality and handling.
I'd still love a bit firmer of springs for this car though (I suppose only the fronts knowing the air suspension in the back), a tad more body roll than preferred.
Newbie
Joined: Feb 2021
Posts: 5
Likes: 2
E400 Wagon
It also depends on the MY of your vehicle. I have a 2018 and mine requires an addition module. EuroCharged quoted me $4900, that includes the stage 1 tune, handheld tuner, TCU tuning, and the extra tuning module. That extra module is $2k alone. In the newer years this module needs to be replaced because if they were going to tune with the existing module it would immediately send the car into limp mode if it detected powered levels beyond what are specified from the factory.
Newbie
Joined: Aug 2021
Posts: 4
Likes: 1
E400 Wagon
It also depends on the MY of your vehicle. I have a 2018 and mine requires an addition module. EuroCharged quoted me $4900, that includes the stage 1 tune, handheld tuner, TCU tuning, and the extra tuning module. That extra module is $2k alone. In the newer years this module needs to be replaced because if they were going to tune with the existing module it would immediately send the car into limp mode if it detected powered levels beyond what are specified from the factory.
As a positive though, it is always nice to know you have some options even if pricey ones. Leaving it stock is just no fun.
Newbie
Joined: Sep 2021
Posts: 9
Likes: 4
2017 E300
Forgot to take any pictures but a friend and I managed to install the Renntech Blow-off Valves 2 weeks ago. What a pain! It says its a pretty easy install and the one on the right side of the motor is no big deal. The one on the left is underneath a fluid reservoir though and you have to work completely blind. We managed to drop three screws and had to go to the hardware store to buy replacements because neither boroscope or magnetic probe could locate 1 of them lost somewhere in the plastic undercladding on this sucker - in the end they went in but I have to say you basically can't hear them at all. I have mine set to moderate and should probably have tried fully open, but without an intake the engine is just too quiet to make anything out really. Kind of a waste, oh well!
I also tried to get the Velos tune installed last week but after spending several hours going back and forth with Carlos from Velos we just couldn't get the handheld tuner to talk to the ECU on my car. Not sure what to do really, I sent them logs but it doesn't sound like there was much in them. Going to try again tomorrow hopefully but I may end up needing to ask for a refund so I can actually take it in somewhere and get it tuned in person.
Only success story so far has been replacing the center console trim - following the guide posted on this forum made the process super easy. Same friend helped me out so he's the one in most of the pics.
Before pic for reference
The screws are obvious and easy to do, we used a trim removal tool prying along the sides of the center console to actually get it to pop out which was easier than just levering it up.
Very helpful to take some pics of the underside to remember where all the wires went. Not too tough to pull the plugs on most of them although a couple were a little stiff.
New pieces mostly clicked or screwed into place with no problems.
All done! The interior is now a more even 2-tone black and brown, with black above for the pillars, dash and headliner and brown at the center. Plus I really hate piano black so that alone would have been reason enough to do this.
I also tried to get the Velos tune installed last week but after spending several hours going back and forth with Carlos from Velos we just couldn't get the handheld tuner to talk to the ECU on my car. Not sure what to do really, I sent them logs but it doesn't sound like there was much in them. Going to try again tomorrow hopefully but I may end up needing to ask for a refund so I can actually take it in somewhere and get it tuned in person.
Only success story so far has been replacing the center console trim - following the guide posted on this forum made the process super easy. Same friend helped me out so he's the one in most of the pics.
Before pic for reference
The screws are obvious and easy to do, we used a trim removal tool prying along the sides of the center console to actually get it to pop out which was easier than just levering it up.
Very helpful to take some pics of the underside to remember where all the wires went. Not too tough to pull the plugs on most of them although a couple were a little stiff.
New pieces mostly clicked or screwed into place with no problems.
All done! The interior is now a more even 2-tone black and brown, with black above for the pillars, dash and headliner and brown at the center. Plus I really hate piano black so that alone would have been reason enough to do this.
Original steering wheel
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