C-Class (W202) 1995-2000: C 200 CDI, C 220 CDI, C 270 CDI, C 180, C 200 K,C 230 K, C 220, C230, C 280

transmission question

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Dec 28, 2008 | 07:25 PM
  #1  
vegastud's Avatar
Thread Starter
Junior Member
 
Joined: Apr 2008
Posts: 27
Likes: 0
kompressor, c230
transmission question

i bought a 2000 C230 Kompressor. it has 94,000 miles and is in great condition with no leaks. i was thinking of changing the transmission fluid. a mechanic friend told me the transmission on the Kompressors are built so they never need a transmission service. moreover he said anything with that many miles without a transmission service is asking for trouble if i service it.

he said if i were to service the transmission it might start slipping because the old transmission fluid acts as microscopic ball bearings and cushins the gears.

anyone have any input or ideas?
vegas
Reply
Old Dec 28, 2008 | 10:52 PM
  #2  
vegastud's Avatar
Thread Starter
Junior Member
 
Joined: Apr 2008
Posts: 27
Likes: 0
kompressor, c230
i have done more research and come across a link that backs up what my mechanic friend said.

http://autos.aol.com/auto-repair-blo...mission-fluid/

so i have a few questions....

--why should i service the transmission for a chance that it will fail?
--if the transmission was meant to be service free, then why service it?

any input would be greatly appreciated
vegas
Reply
Old Dec 29, 2008 | 12:32 AM
  #3  
AMGC's Avatar
MBWorld Fanatic!
 
Joined: May 2008
Posts: 1,101
Likes: 13
From: MA
Mosselman 190E 16V+ C63S+ Abarth 595
haha yeah... mercedes sealed for life trannys. the tranny fluid should be changed. the old tranny fluid is microscopic ball bearings after 954000 miles where as the new fluid will be microscopic ball bearings after 0 miles.
Reply
Old Dec 29, 2008 | 01:10 AM
  #4  
w202305's Avatar
Junior Member
 
Joined: May 2008
Posts: 72
Likes: 0
From: miami
c230 kompressor 1999
i have 99 c230kompressor it only has 46000 miles and i change my transmission fluid when the car had only 40000 and it work better, changing the fluid is the best thing u can do is easy it take only 40 minutes. bmw are the only that have a tranny sealed for life well thats what my 01 740i has when u get under the car
Reply
Old Dec 29, 2008 | 02:29 AM
  #5  
Ausmbtech's Avatar
MBWorld Fanatic!
 
Joined: Jan 2007
Posts: 1,152
Likes: 29
From: Sydney, Australia
190D 2.5 (x2), 190E 2.6, W202 C240,W202 C43 (C55), W210 E55, W212 E250CDI
Change the oil and filter. Don't worry about flushing it.

The important part is the filter (they block up) and add a magnet to the pan if it doesn't have one (probably doesn't).

These transmissions fail either due to low oil level, blocked filters or wear that was going to occur with new oil or old.

New oil just makes it last longer.

Some cars it isn't a good idea to service them after a long period without a service because they "sludge-up" and the new oil removes that sluge which brings new problems, I've yet to see a MB 722.6 transmission sludge up at all.

Last edited by Ausmbtech; Dec 29, 2008 at 07:14 AM.
Reply
Old Dec 29, 2008 | 07:00 AM
  #6  
Untertürkheim's Avatar
MBWorld Fanatic!
 
Joined: Mar 2007
Posts: 2,408
Likes: 3
Originally Posted by Ausmbtech
Change the oil and filter. Don't worry about flushing it.
+1 and use the proper MB fluid and filter.

MB has said that they were wrong and the transmissions are not service free. They should be serviced at every 3rd service.
Reply
Old Jan 3, 2009 | 09:04 PM
  #7  
GlockDaddy's Avatar
Junior Member
 
Joined: May 2008
Posts: 56
Likes: 0
From: Sacramento
2000 C230 Kompressor
Trans Fluid Change

+1 +1 On the MB 722.6 Transmissions, the clutch packs lock up in every gear (1-5) compared to a conventional American or Japanese transmission which will "slip" in every gear until it locks up in high or overdrive.

Consequently the MB transmission will experience a lot less friction and heat and breakdown of the fluid. With that in mind MBNA thought that they could get away with the "Lifetime" fluid gimmick, but what they have found is that dirt still manages to find it's way into the transmission which can restrict flow through the trans filter, hence the need for the 30 - 40k mile fluid changes.

I have the same car, bought it used at 68k, changed the fluid at 80k and found out it hadn't been changed either. Works even better now.

Another thing that may help improve trans shifting is cleaning the Mass Air Sensor, but that's a topic for another thread...

Oh, and make sure you use only MB Trans fluid.

Good luck!
Reply
Old Jan 3, 2009 | 10:45 PM
  #8  
ohlord's Avatar
MBWorld Fanatic!
 
Joined: Apr 2007
Posts: 6,171
Likes: 16
300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
722.6

transmission.Mercedes caught on by 2003 w211 models and complaints from owners.Factory TSB issued saying change fluid and filter at 39k miles.You are well past that so it is time.
Use only mb spec fluid.You will need the special dipstick(I have them for $45 delivered,Pan magnet included for $50 total.Free phone support
Autohausaz.com has the locking tab and fluid.)
DIY on benzworld.org w210 diy section and mercedesshop.com resource section diy articles.
Drain don't flush

So I have a few questions
the link that backs your friend up,is your car a toyota?
Is your mechanic friend a mercedes mechanic or does he even know anything at all about the 5speed 722.6 transmission?
find a new mechanic friend
he knows not of what he speaks

Dirt does not find its way into the transmission,the graphite wears off the internals and moves into the fluid affecting wear,shift quality,and the sensors located on top of the valve body.
While doing the fluid job it is a good idea to inspect and replace the electrical connector at the transmission on the passenger side.

Last edited by ohlord; Jan 3, 2009 at 11:09 PM.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-1

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-2

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-3

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-4

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-5

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-6

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-7

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-8

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
story-9

Mercedes Teases Updated EQS With Steer-By-Wire and a Yoke

 Verdad Gallardo

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


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 10:12 PM.

story-0
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-1
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-2
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-3
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-4
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-5
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-6
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-7
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-8
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE
story-9
Mercedes Teases Updated EQS With Steer-By-Wire and a Yoke

Slideshow: The 2027 update adds a fully digital steering system, revised styling, and potential charging upgrades as the company looks to revive interest in the luxury EV.

By Verdad Gallardo | 2026-04-04 10:24:38


VIEW MORE