C230 Sport Coup's All things AT Transmission related
I noted a few other parts that had updates, software, and different size tubes that supercedes certain cars...
You'll need some sort of pump to get it into the pan...
you could alway use one of those drill powered pumps,
like the Sureflow on boatersworld for 20 bucks, which I use to do oil changes.
One thing - I couldn't get the drain plug to open, so I sucked about 3L of fluid from the top fill tube with my MityVac... then when I dropped the pan, there wasn't hardly any mess. I'm thinking about changing out a few liters of fluid using the MityVac after each oil change since I didn't do a complete flush.
Cheers!

The sample results suck - almost typical of a transmission in trouble. The results are so bad that I would suspect the sample came from the dregs in the oil pan - not what the transmission sees post filter.
The Pentane insolubles show a level of oxidation. It's a pity that a TAN (Total Acid Number) was not performed to better show just how bad this was.
Last edited by Glyn M Ruck; Oct 26, 2008 at 04:54 AM.

I'm spoilt - I'm used to having a good analysis & a ISO cleanliness level to have a look at which gives you a partical size distribution.
Last edited by Glyn M Ruck; Oct 27, 2008 at 04:51 AM.




I'm spoilt - I'm used to having a good analysis & a ISO cleanliness level to have a look at which gives you a partical size distribution.
As in I had a dealer "flush" the tranny, but saw that in fact only 4 quarts got changed, if at all at 80 or 90K miles. I checked after they did it and it was green then, so likely not, and the test pretty well proves it, though if you only changed 1/2 your motor oil or less, you might see the same type of result. I plan to do it again at 60K miles as suggested in the maint. sheets.
So since I couldn't seem to get any of those fools to do it right, I was forced to DIY, which is nothing new.
My local guy is suggesting changing it every 30K miles! Which seems excessive but he feels that might result in some long and trouble free transmissions.
It's a PIA without a lift.
Last edited by C230 Sport Coup; Oct 28, 2008 at 04:08 AM.

As in I had a dealer "flush" the tranny, but saw that in fact only 4 quarts got changed, if at all at 80 or 90K miles. I checked after they did it and it was green then, so likely not, and the test pretty well proves it, though if you only changed 1/2 your motor oil or less, you might see the same type of result. I plan to do it again at 60K miles as suggested in the maint. sheets.
So since I couldn't seem to get any of those fools to do it right, I was forced to DIY, which is nothing new.
My local guy is suggesting changing it every 30K miles! Which seems excessive but he feels that might result in some long and trouble free transmissions.
It's a PIA without a lift.
Saw an interesting statistic yesterday - South Africa has the 4th largest offtake of AMG vehicles wordwide - the autos in those things must take a hammering.
The Best of Mercedes & AMG

Sent a fluid sample to Blackstone and it looks like if I had any coolant contamination, it was minimal. In fact, it indicated 0.0% water, so I think I'm ok. Here's a copy of my report. D66132.pdf
Also replaced a leaking transmisson electrical plug shown in this link: http://www.installuniversity.com/mb/...ans_oring.html
C230 Sport Coup and Splinter, thanks for the DIY's...they were definately a big help.
Sent a fluid sample to Blackstone and it looks like if I had any coolant contamination, it was minimal. In fact, it indicated 0.0% water, so I think I'm ok. Here's a copy of my report. Attachment 149407
Also replaced a leaking transmisson electrical plug shown in this link: http://www.installuniversity.com/mb/...ans_oring.html
C230 Sport Coup and Splinter, thanks for the DIY's...they were definately a big help.
Can you guys remind me Why you didn't pop off the right side undertray, unscrew the banjo bolt and flush the fluid directly from the tranny? I'm planning on flushing my tranny this weekend and am wondering if there is any time or hassle savings in draining from the radiator.
thanks!




you'll see when you remove just the pan, and replace the filter. Minimal space, and I don't enjoy tranny fluid showers while laying on my back, though I knew this one kinky chic...but thats another story.

It's just a personal choice. The banjo bolt thing makes more sense on a lift, but then someone has to
start and stop the car. So, that means, they'd have to be in the car... on the lift???? Hmmmmm....
just go with the rad function. It's a little bit of a pain wrastling it out of it's plastic clippy thingy's on the rad, but not that bad. Be sure to replace the o ring! See pn I posted for C230 if you have 2002, not the one on the C32 that Splinter uses.
As you saw in my pics, it's pretty easy to drain at the rad,
and directly into a container for curbside recycle.
Sweet.
As far as the other guy who said the hose came off, well, be sure to use a hose clamp, just avoids that issue. Good job on replacing the rad and checking the fluid. Whew! Another Beeee U ty Full 2002 coupe saved from destruction. Post pics please! Not all Valeo rads are supposedly bad, but who wants to find out? Not me, I woulda done the same thing.
thanks!
Last edited by C230 Sport Coup; Feb 11, 2009 at 03:02 AM.

Sent a fluid sample to Blackstone and it looks like if I had any coolant contamination, it was minimal. In fact, it indicated 0.0% water, so I think I'm ok. Here's a copy of my report. Attachment 149407
Also replaced a leaking transmisson electrical plug shown in this link: http://www.installuniversity.com/mb/...ans_oring.html
C230 Sport Coup and Splinter, thanks for the DIY's...they were definately a big help.




And glad you got it right. We get people around here once in a while posting that they
drained the tranny and then poured 8 quarts of tranny fluid into the sump, bloew up the motor, because they didn't do the reading in advance. Excellent! Another benzo saved from the wrecking ball.
Last edited by C230 Sport Coup; Feb 16, 2009 at 02:54 PM.




Like I said, I was able to save the day, by heating the hose slightly over the stove, stuffing it over a the handle of a 1/2" ratchet to stretch it, and then it was the right size.
And glad you got it right. We get people around here once in a while posting that they
drained the tranny and then poured 8 quarts of tranny fluid into the sump, bloew up the motor, because they didn't do the reading in advance. Excellent! Another benzo saved from the wrecking ball.
Like I said, I was able to save the day, by heating the hose slightly over the stove, stuffing it over a the handle of a 1/2" ratchet to stretch it, and then it was the right size.

For anyone that doesn't have an old radiator, you can PM me and I'll send you one of mine (adapter, not a radiator). All I ask is that you do the same and send it to the next person from the forum that asks.




For anyone that doesn't have an old radiator, you can PM me and I'll send you one of mine (adapter, not a radiator). All I ask is that you do the same and send it to the next person from the forum that asks.
Attachment 153232
I won't be needing this for a little while, but I'd be happy to take one off your hands.

Well, actually I think I'll be fine, i saved the hose etc. from the 1st time.
Next time around I may just flush without messing with the pan at all 40K miles after the
1st time, then drop the pan the next time around...but it's running great now, so not messing with it.
Interesting how all your numbers are lower in your oil report, but the, lead, manganese, potassium, sodium, calcium, magnesium (mine was 0, yours was 2) and zinc are higher....wierd.
I'm sure Glyn will tell us what it means......
Last edited by C230 Sport Coup; Mar 30, 2009 at 11:58 PM.





