Best Practice when driving a 7G DCT vehicle? - Mercedes-Benz Forum
 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 03-10-2016, 06:40 PM Thread Starter
BenzWorld Junior Member
 
Date registered: Jan 2016
Vehicle: 2015 B200 W246
Location: Sunshine Coast, Queensland, Australia
Posts: 10
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
(Thread Starter)
Question Best Practice when driving a 7G DCT vehicle?

I am looking for advice regarding ‘best practice’ when driving a vehicle with a duel clutch transmission and in particular the 7G DCT as fitted to Class A and B Mercedes Benz vehicles.
For instance, in city traffic is it better to just leave it in drive all the time while waiting at traffic lights like you would if driving an automatic; or is it better to flick it into neutral if you’re expecting to be stationary for a while, like you would do if driving a manual vehicle?
By ‘best practice’ I mean what’s best for the longevity of the clutches and the associated equipment; dose this stuff wear more when left in drive while stationary or dose shifting into neutral then back to drive regularly cause more wear?
I can definitely hear some load come off the engine when I go from D into N when stationary.
As you would have gathered I drive with the Eco mode turned off, otherwise this question wouldn’t be so relevant.
With my manual vehicle I always downshift as I’m slowing down to a stop and would often not use the brakes until the last ten meters, I’m not talking aggressive double shuffle stuff here, just simple downshifts to use the engine breaking effect to slow down. The paddle shifts on the steering wheel make this very easy but is this bad practice with a DCT?
I’m hoping for feedback from someone with a real working knowledge of the Mercedes 7G DCT; a service technician would be great.
I have read that the clutches of the 7G DCT are 'oil cooled’ but I don’t know if this means they are a ‘wet clutch’.
Finally, dose anyone out there drive their 7G DCT in Manual mode on a regular basis?
BenzieB is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 10-05-2017, 01:11 AM
BenzWorld Newbie
 
Date registered: Oct 2017
Vehicle: 2013 A 180 Sport Petrol
Location: Chennai - India
Posts: 3
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Hello,

My name is Vikram, I reside in South of India, I own a A180 Petrol.

The clutch is wet and every 60,000 kms the transmission oil is scheduled for a change, I am at 42,000 Kms on the odo.

Wrt driving modes I usually drive in D mode, only hard highway overtaking I use the downshifts (-) and then go back to the gears.

Putting the car in neutral is a good practice in longer traffic jams in a straight surface, as you rightly said it does put the load on the hold button in the eco mode or just holding the brakes for longer time can heat up the brakes... ideally in an auto there is a self defense technique even if u hold the brakes it dosent harm not sure if its a myth or a real thing.

do keep writing to me thanks take care.
Vikram R is offline  
post #3 of 3 (permalink) Old 06-14-2018, 08:09 PM
BenzWorld Newbie
 
Date registered: Jun 2018
Vehicle: 2018 A200
Location: Hong Kong
Posts: 4
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
I am not a technical person and new to the forum and Mercedes (joined yesterday, acquired A200 last week). While browsing the user manual, I read that Mercedes does not recommend using the gears (so paddle shift down for automatics) for first 1500km while running in (although my agent actually told me no need to run in modern cars!). I interpret this to imply that downshifting to break should be OK thereafter? However, that's probably an over-simplification and I'm sure a technical person could confirm/deny/elaborate...
CWP* is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W176 A-Class

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 

Title goes here

close
video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome