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Topic: 2014 E350 W212 Transmission Clicking Noises + Hard Downshift at Higher Speeds Reply to Thread
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  Topic Review (Newest First)
05-19-2019 04:04 PM
Matt Davis
Quote:
Originally Posted by NYYYCE&EEEEZY View Post
Quote:
Originally Posted by Matt Davis View Post
Thanks, they did my fluid with the solenoid replacement so I'm good for a while now. The interval depends on the vehicle. The 2014 E350 is every 70,000 miles.
When I check the maintenance booklet for my 2014 E350, it says, "Automatic Transmission - Oil and Filter change" at (every) 40,000 miles.

If interested, check this link on 40,000 miles (page 25), third item from the bottom.

https://www.mbusa.com/vcm/MB/Digital...ce-Booklet.pdf

Perhaps you're using a different source for your information??
Interesting. Yes, looks like a different service interval between the 2010 and 2014 https://www.mercedesbenzraleigh.com/...ce_Booklet.pdf
My dealer confirmed 120,000 km.
05-19-2019 12:30 PM
NYYYCE&EEEEZY
Quote:
Originally Posted by Matt Davis View Post
Thanks, they did my fluid with the solenoid replacement so I'm good for a while now. The interval depends on the vehicle. The 2014 E350 is every 70,000 miles.
When I check the maintenance booklet for my 2014 E350, it says, "Automatic Transmission - Oil and Filter change" at (every) 40,000 miles.

If interested, check this link on 40,000 miles (page 25), third item from the bottom.

https://www.mbusa.com/vcm/MB/Digital...ce-Booklet.pdf

Perhaps you're using a different source for your information??
05-18-2019 02:58 PM
Matt Davis
Quote:
Originally Posted by NYYYCE&EEEEZY View Post
Keep in mind that M-B recommends that transmission service (fluid and filter) be done every 40,000 miles, and to avoid future problems, check your maintenance booklet for all service intervals.

Hope you enjoy the car. I really enjoy mine!
Thanks, they did my fluid with the solenoid replacement so I'm good for a while now. The interval depends on the vehicle. The 2014 E350 is every 70,000 miles.
05-17-2019 06:24 PM
NYYYCE&EEEEZY Keep in mind that M-B recommends that transmission service (fluid and filter) be done every 40,000 miles, and to avoid future problems, check your maintenance booklet for all service intervals.

Hope you enjoy the car. I really enjoy mine!
05-16-2019 07:24 PM
Matt Davis Btw they put me in a 2019 C300 loaner during this process. The exterior looks fantastic and was a lot of fun to drive but the 2014 E still feels much more solid and luxurious.
05-16-2019 07:18 PM
Matt Davis Good news 🙂 they collected more data while doing manual adaptations and found high pressure in the B2 solenoid. They recommended replacement of the solenoid. Decided to get the work done for a total of $1,300 CAD at Mercedes. After the repair the 5-4 downshift is now butter smooth. They said that the original transmission fluid had no sign of irregular transmission wear so that's a good sign. Here's to hoping no more problems!

In case this issue comes up again, how difficult is a DIY on solenoid replacement? I've done a transmission fluid change on my w210 before no problem. The w212 scared me away because of the required method of pumping the fluid in from the bottom and measuring the level by temperature.
05-05-2019 05:47 PM
Yazovets
Quote:
Originally Posted by Matt Davis View Post
I've narrowed down more when the hard Downshifts happen. The worst downshift is 5 to 4. Tested it out today in manual. Driving about 60km/hr in 5th gear, step on the gas pedal about 1/4 depressed then downshift to 4 and I get a big jerk. The rest are not that bad, although Downshifts that pass down through 4 often have a jerk-hesitation-then acceleration. When driving very gently, all gear shifts are butter smooth. Downshifting while accelerating is a bad.
The 5-4 downshift is exactly the issue I am having. Same as you're describing.
05-02-2019 05:26 PM
Matt Davis
Quote:
Originally Posted by Black Swan View Post
Quote:
Originally Posted by Matt Davis View Post
It seems to have improved a bit. By no means is it perfect. I test drove another 2014 e class and it shifted much smoother. Mercedes said it could take up to 2 weeks for the adaptations to learn.

You're lucky they were honest in admitting they have no idea what it could be. It gets expensive when they decide to throw parts at an "unknown" issue. I highly doubt 2 weeks of driving is going to resolve the hard downshifts.

Have you by chance checked your motor/transmission/rear sub frame mounts?
They still think it's software related. Going in for manual adjustments to the adaptations in a week. Yeah shocking. They are being really good about it for now. They're not going to charge me for the manual adjustments. If that doesn't work then I dunno. Maybe swap out the valve body. The service manager confirmed there were no transmission services in the first 70k so I'm the first one to find the issue.

No I have not check the mounts. You think they could be related? I've narrowed down more when the hard Downshifts happen. The worst downshift is 5 to 4. Tested it out today in manual. Driving about 60km/hr in 5th gear, step on the gas pedal about 1/4 depressed then downshift to 4 and I get a big jerk. The rest are not that bad, although Downshifts that pass down through 4 often have a jerk-hesitation-then acceleration. When driving very gently, all gear shifts are butter smooth. Downshifting while accelerating is a bad.

I was reading about "Peter Ubers" who was dealing with some serious transmission problems on his brand new 2014 E550. I hope this isn't the same case. Because he went through two brand new cars for transmission problems.
05-01-2019 11:36 PM
Black Swan
Quote:
Originally Posted by Matt Davis View Post
It seems to have improved a bit. By no means is it perfect. I test drove another 2014 e class and it shifted much smoother. Mercedes said it could take up to 2 weeks for the adaptations to learn.

You're lucky they were honest in admitting they have no idea what it could be. It gets expensive when they decide to throw parts at an "unknown" issue. I highly doubt 2 weeks of driving is going to resolve the hard downshifts.

Have you by chance checked your motor/transmission/rear sub frame mounts?
04-28-2019 12:59 PM
Matt Davis It seems to have improved a bit. By no means is it perfect. I test drove another 2014 e class and it shifted much smoother. Mercedes said it could take up to 2 weeks for the adaptations to learn.
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