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Tranny Flush? When to service? 60-70k?

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Old 11-11-2011, 09:30 AM
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Tranny Flush? When to service? 60-70k?

I have just over 70,000 on my w203 and the tranny mount is being replaced today. I was thinking about having the tranny fluid flushed and replaced. What is the recommended mileage for this service and is there a specific type of fluid to use? I would need to call this into the shop so any responses are appreciated.

Thanks!
Old 11-11-2011, 12:53 PM
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You require fluid meeting Benz 236.14. Change every 60,000Km or 39,000 miles with filter.
Old 11-11-2011, 03:30 PM
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Originally Posted by Glyn M Ruck
You require fluid meeting Benz 236.14. Change every 60,000Km or 39,000 miles with filter.
Could I purchase this fluid at the local dealership with the filter then bring it to my INDY to have serviced? The tranny mount has been pushed till next week and I'm thinking of having this done at the same time.
Old 11-11-2011, 05:03 PM
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Don't buy from dealer buy from here http://www.ryderfleetproducts.com/ry...oductDetail.do
Old 11-11-2011, 07:08 PM
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+1^ - listen to Trey! Yes a good Indy can easily do it for you at large saving.
Old 11-14-2011, 08:46 AM
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Thanks guys, it is really appreciated. How many bottles or quarts would I need and is there a link for the filter as well? Sorry for so many questions, I'm learning more about servicing the longer I own the car.
Old 11-14-2011, 12:33 PM
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Make sure whoever does it does not overfill the transmission.. it will make a mess, scare you to death, you'll have it towed unnecessarily and have a general lack of trust of the car for a week or so... maybe it's just me?
Old 11-14-2011, 12:42 PM
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Originally Posted by LILBENZ230
Make sure whoever does it does not overfill the transmission.. it will make a mess, scare you to death, you'll have it towed unnecessarily and have a general lack of trust of the car for a week or so... maybe it's just me?
Old 11-14-2011, 04:31 PM
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Def make sure a shop who has a clue does it, the cars tranny atleast on the 7g when I watched it done, temp has to be at like 160 for it to work right, and they have to overfill it to then drain it down to the correct full amount, its really wierd. Just make sure you bring it to a MB shop or dealer, tuffy wont cut it for that
Old 11-14-2011, 07:39 PM
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The 722.6 transmission is easy to service. Drain, drop the pan. pop on a new filter, clean the magnet - new gasket, reassemble & fill up fluid to the correct level - need a thermometer of choice & the correct dipstick. Good DIY's in the stickies.
Old 11-15-2011, 09:16 AM
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Hmmm, I might shell out the cash and have the dealership do this to make sure it is done correctly. Does anyone know what the cost associated with this service would be at the dealer?
Old 11-15-2011, 10:03 AM
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Take it to the dealer if you want to pay 300% more than what you could have it done for at an indy. Just use the correct fluid and make sure to get the fluid level correct. You should avoid the dealer if possible - there is no reason to overpay. The 722.6 is simple, as Glyn said.
Old 11-15-2011, 01:18 PM
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Originally Posted by LILBENZ230
Take it to the dealer if you want to pay 300% more than what you could have it done for at an indy. Just use the correct fluid and make sure to get the fluid level correct. You should avoid the dealer if possible - there is no reason to overpay. The 722.6 is simple, as Glyn said.
That is true, I do avoid the dealership if I can. I have several Indy shops I work with but this might be a job for the Mercedes Certified Tech with over 20 yrs experience. I don't want any issues with my tranny.
Old 11-15-2011, 01:29 PM
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Taking it to a dealer is no guarantee. They have blatant disregard for Mercedes' own specifications - regularly putting diesel oil into gasoline engines, not putting the right fluid in the rear diff, etc.
Old 11-15-2011, 01:36 PM
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Originally Posted by LILBENZ230
Taking it to a dealer is no guarantee. They have blatant disregard for Mercedes' own specifications - regularly putting diesel oil into gasoline engines, not putting the right fluid in the rear diff, etc.
and you know EVERY dealer in the US and world is doing this?

No

We charge 199.99 for a trans service on your car, call and see if your dealer is near that.

If not of course hit up an indy just make sure they where an x tech or something so its not just a guy who "knows" euro cars
Old 11-15-2011, 01:56 PM
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Cheapest here is $260, next cheapest is over $550.. By the way, asking questions and then answering them yourself makes you come across as a child. Do you stomp your feet at the same time?

The use of 229.51 oil in gasoline engines is widespread with dealers, we've seen it on the forum from coast to coast in the USA. It is easily to the point where no one should trust a dealer to use the correct oil. And didn't you say in another thread that it won't harm the car? You know, even though the experts and Mercedes-Benz themselves say otherwise? That's another issue I have with the dealers.. the arrogance.

OP - Avoid the dealer. Beneath that three pointed star on the hood is just a car. The 722.6 transmission is straight forward, easy to service. The 722.9 is more complicated but lots of members have managed to do it themselves. At least if you take your own parts and fluid to an indy you know what has went in your car.

Use www.ryderfleetproducts.com to buy Shell 134 ATF, it meets the MB approval 236.14 and it will be less than half the dealer charge. Buy 5 quarts for a simple change, but you'll probably only get 4 or so out. Use RMEuropean.com to buy the gasket, filter, and O-ring.

Buy an electrohydraulic bushing (also called pilot bushing) - these are known to leak on the 722.6 and can cause problems. It's cheap and if yours isn't leaking now you'll have a spare. Glyn says he keeps a spare at all times. I now have a spare, too.

Last edited by LILBENZ230; 11-15-2011 at 01:59 PM.
Old 11-15-2011, 01:57 PM
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Many Mercedes techs don't know the cars well. I've lectured to many of them around the world. Like anything. Some are good. Some are just plain crap. Having a certificate for a tech on the dealer wall is no guarantee of competence.
Old 11-15-2011, 02:53 PM
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Tri Star.

One of the main things when doing a transmision oil change is to have & keep everything clean. Start with a clean workplace floor /bench ect . I lay newspaper out to make sure in a farm shed! Also clean down the external area of the gearbox/pan before dismantling. Compressed air is good to remove dust that has accumulated on hard to get to areas. Make sure your tools are clean also.

Clean the magnet in pan & internals of pan throughly . Use lint free clean cloths .I do a final wash out with metholated spririts & blow dry with compressed air .

Make sure funnels & dipsticks are absolutely clean & free of lint.

I reckon the home mechanic can do a more througher job than the pros!!
Old 11-16-2011, 08:09 AM
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Originally Posted by AdidasC230
Def make sure a shop who has a clue does it, the cars tranny atleast on the 7g when I watched it done, temp has to be at like 160 for it to work right, and they have to overfill it to then drain it down to the correct full amount, its really wierd. Just make sure you bring it to a MB shop or dealer, tuffy wont cut it for that
For the 7G temp needs to be 45 degrees C/113 degrees F, and can't be over that or the trans will be under filled. Nothing really weird about the 7G service and using a fill pipe in the bottom. That is how most modern automatics are designed these days. Partially to discourage DIY, and partially to keep contamination to a minimum by eliminating the dipstick tube.
Old 11-16-2011, 08:19 AM
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Originally Posted by Carsy
Tri Star.

One of the main things when doing a transmision oil change is to have & keep everything clean. Start with a clean workplace floor /bench ect . I lay newspaper out to make sure in a farm shed! Also clean down the external area of the gearbox/pan before dismantling. Compressed air is good to remove dust that has accumulated on hard to get to areas. Make sure your tools are clean also.

Clean the magnet in pan & internals of pan throughly . Use lint free clean cloths .I do a final wash out with metholated spririts & blow dry with compressed air .

Make sure funnels & dipsticks are absolutely clean & free of lint.

I reckon the home mechanic can do a more througher job than the pros!!
Agree 100%. Great advise, and I do all those things too when servicing my transmissions.

Frankly, I have had too many bad experiences with so called professionals working on my cars, that I do all my own work now. With the right tools, resources, and patience, most mechanically competent people can do their own maintenance and repairs. It certainly saves a lot of money and gives you a sense of accomplishment knowing you did it right, by yourself.

If and when I grow tired of working on my cars, I would find a good Indy. Too many bad dealer experiences. I know there are some good dealers out there, but they are certainly in the minority.
Old 11-16-2011, 08:26 AM
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Originally Posted by Glyn M Ruck
Many Mercedes techs don't know the cars well. I've lectured to many of them around the world. Like anything. Some are good. Some are just plain crap. Having a certificate for a tech on the dealer wall is no guarantee of competence.
Absolutely. The other problem that Glyn pointed out in another thread is with the vast parts resources that dealer techs have at their disposal, they have essentially become parts jockeys, and just throw parts at a problem until it is resolved. Most have no automotive diagnostic skills whatsoever.
Old 11-16-2011, 11:00 AM
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My dealer is NJ is charging $350. You are better off at an indy.
Old 11-16-2011, 12:16 PM
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Originally Posted by johnand
Absolutely. The other problem that Glyn pointed out in another thread is with the vast parts resources that dealer techs have at their disposal, they have essentially become parts jockeys, and just throw parts at a problem until it is resolved. Most have no automotive diagnostic skills whatsoever.
Dealers do not "repair" anything. They replace things until the problem goes away, sometimes replacing numerous things that didn't need to be replaced in the process. All this is fine and dandy on Mercedes' tab if that's what the part-swappers want to do, but it is not OK when they want you to pay. The fuel filler neck on the 2005 C230 gets them every time, for example - they throw parts of it. It's not just that, either, it's everything.

Then they want you to pay the ridiculous rates so they can have marble floors in the restrooms. No thanks.
Old 11-16-2011, 01:50 PM
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Thanks for all the wonderful advice. My dealership is actually very highly ranked, however most likely won't be cheap either. I think i'm going to drop it off at the Indy shop in the near future for this service. It is something i'd rather have someone else handle in the event something goes wrong, it is on them, not me.
Old 11-16-2011, 04:20 PM
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ermm I dont know if im going beyond theme here but how often should i change my 6-speed manual gearbox oil ?? I have 160.000km on my benz and still havent changed it...

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