Transmission oil change c230 - Mercedes-Benz Forum

Go Back   Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W202 C-Class
New User? Register - Forgot Password

BenzWorld.org is the premier Mercedes-Benz Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 02-01-2011, 11:29 AM   #1 (permalink)
BenzWorld Junior Member
 
Date registered: Oct 2010
Posts: 18
Transmission oil change c230

I have a 1997 c230 which has 2 drain plugs so that I can completely drain the ATF but I can't get either of them to budge... I tried heating them and just plain torquing them which is pretty tough to do... since they're just a simple hex type. I completely stripped the one in the pan before giving up and just dropping the pan, regardless I was only able to do a partial change with only the pan so... any suggestions or instructions on how to get those plugs to budge would be great.

Also if anyone has tried flushing the tranny through the cooling hoses, a quick walk-through on that would be great. I would of done it already but I wasn't sure which hose was from the tranny and didn't see one that seemed likely enough to hazard a guess, thanks for everything
fledgling101 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-01-2011, 02:07 PM   #2 (permalink)
BenzWorld Elite
 
DirectLA's Avatar
 
Date registered: Jan 2007
Vehicle: 1962 W111 220SE Coupe
Location: Cloud City, OR
Posts: 2,243
Spray a penetrator (WD40 or similar) and go have a snack while you let it do it's work. If the stripped head cannot be grasped at all by a smaller diameter socket or a specially made tool for extraction, or vice grips if it's already mangled. Some have suggested cutting a slot using a hack saw to put a screwdriver on but I doubt that will work if they are solidly in place.

You could also try warming the whole area again and then immediately hit the bolt head only with a spray of supercold compressed air. If you get right on it there may be enough shrinkage to the bolt to remove it. You would spray the bolt head with compressed air (the kind you use to clean keyboards) held upside down but DO NOT inhale the vapor or let it touch you as it is extremely cold and will cause damage quickly to skin and lungs. Spraying upside down will send cold liquid rather than air as you would get holding the can upright, and the liquid will begin to evaporate quickly. I'd try this as a last resort so you don't risk a fire or cracking the case due to temp changes, I'm assuming it's made of cast aluminum?

Whatever you choose to do, have spare plugs on hand so you won't be putting the same old ones in again.
__________________
-Marrs

The Coupe Group (W111/112 coupes and cabs)official website
The Coupe Group on Facebook
MotoArigato:Roadworthy News & Humor

"Too many people are working at jobs they hate, to buy things they don't particularly want, to impress people they don't even care about." --Dr. Deepak Chopra
DirectLA is offline   Reply With Quote
Old 02-01-2011, 05:28 PM   #3 (permalink)
BenzWorld Elite
 
Check Codes's Avatar
 
Date registered: Mar 2005
Vehicle: '01-E320 & 02-ST2
Location: John 15:18-19
Posts: 28,515
A manual impact wrench is useful for such things. I don't know that I'd use it on the pan since it would probably dent it, but I've used one for stuck fasteners all the time. Preload it when you use it (meaning put pressure on it and turn it in the direction necessary to loosen it) before striking it. If it hasn't been too badly roughed up I've never had that fail.

This is what they look like, just as an example. Any tool store will have it, as well as Sears, good hardware stores, even Harbor Freight if you have one around. I'm not sure about regular parts stores but they might. And I agree with LA about having the replacement on hand, too.





Good luck.
__________________
Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; its inherent virtue is the equal sharing of misery. (Winston Churchill)
Check Codes is offline   Reply With Quote
Old 02-02-2011, 12:03 AM   #4 (permalink)
BenzWorld Member
 
Date registered: May 2008
Vehicle: 2000 C230 Kompressor
Location: Chicago
Posts: 141
Send a message via AIM to flip240
I stripped my pan drain plug too, just grabbed a pair of locking pliers and got a good bite on the head of the plug, came out fairly quickly. I bought a new plug from autohausaz iirc
flip240 is offline   Reply With Quote
Reply

  Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W202 C-Class

Bookmarks



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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


Similar Threads
Topic Author Forum Replies Last Post
2005 C230 Transmission fluid change saeesora W203 C-Class 12 10-20-2013 12:10 PM
2000 C230 Kompressor Transmission Oil Change with Pics Mercedes Benz of Florida W202 C-Class 39 01-01-2013 04:24 PM
change Transmission oil + fix transmission leak = 325$ :-) KarlBenzSF W210 E-Class 26 12-20-2009 09:59 PM
1998 C230 Transmission Oil Change ojrana W202 C-Class 6 09-01-2008 06:58 PM
c230 transmission fluid change interval shelnick W203 C-Class 14 11-29-2007 04:02 AM


All times are GMT -7. The time now is 06:43 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.