Anyone ever have a really dirty or clogged 722.6 transmission filter - PeachParts Mercedes-Benz Forum

300B · #1 02-21-2007, 09:36 AM

I haven't seen it mentioned.

#2 02-21-2007, 10:10 AM

yes...seen it numerous times. most recently in a 722.6 that literally ate itself to death. filter and pan full of chunks of metal. car had about 110,000 miles and customer never had the transmission serviced. in this case, the MBZ "lifetime" fluid's life ended at 110,000 miles. transmission sounded like it had marbles floating around in it but amazingly no codes were thrown and the car still moved.

reman transmission from the dealer; about $5000; new was closer to $10,000. (the remans don't have a torque converter drain either.)

lifetime fluid or not, i say service those transmissions!

TMAllison · #3 02-21-2007, 12:51 PM

Search "advanced" using the name Gilly and subject 722.6 or variations thereof.
(here's one to start you off)
1999 S500 with 722.6 Automatic Transmission Filled for life?

Do same for C32AMG

300B · #4 02-21-2007, 02:40 PM

Quote:

Originally Posted by TMAllison

Search "advanced" using the name Gilly and subject 722.6 or variations thereof.
(here's one to start you off)
1999 S500 with 722.6 Automatic Transmission Filled for life?

Do same for C32AMG

Still doesn't give reference to the filters clogging up.

300B · #5 02-21-2007, 02:41 PM

Quote:

Originally Posted by 1968w108

yes...seen it numerous times. most recently in a 722.6 that literally ate itself to death. filter and pan full of chunks of metal. car had about 110,000 miles and customer never had the transmission serviced. in this case, the MBZ "lifetime" fluid's life ended at 110,000 miles. transmission sounded like it had marbles floating around in it but amazingly no codes were thrown and the car still moved.

reman transmission from the dealer; about $5000; new was closer to $10,000. (the remans don't have a torque converter drain either.)

lifetime fluid or not, i say service those transmissions!

Sounds like it just imploded!

#6 02-21-2007, 03:39 PM

300b,

i'm not really sure what you're asking. there are a ton of posts about the 722.6 transmission. any filter if neglected will get "really dirty;" that's its job, which is why filters ought to be changed periodically.