Help - Transmission / 300SDL - PeachParts Mercedes-Benz Forum

probear · #1 02-28-2010, 11:08 PM

Here's what happened. Car ran fine yesterday. Started up fine tonight, temp somewhere around 35F, car started fine, and backed out of a steep driveway without a problem. Into forward, and again, short uphill climb, and again, no problem. Drove about 1/2 mile to a stop sign, stopped and then pulled out.

After about 10 feet, a pop (not really loud enough for a bang) and no forward gear. Put it into reverse and it worked. Back into drive and nothing. I backed out of the middle of the street and a few hundred feet up the side road.

Just to make sure, drive again, and it seemed like it might try, but nothing. Decided to try adding a quart of transmission fluid. One quart later, still nothing.
Backed the half mile back to GF's house and parked it. Too dark and cold for a better look, but no apparent fluid on the road anywhere.

Comments and suggestions really appreciated. Once again, there was a pop, then no forward gears. Reverse seems fine. There is a slight, very slight occasional grab attempt, but nothing in drive.

HELP !!
Thanks.....

my123ca · #2 03-01-2010, 07:53 AM

B2 piston or band. Same thing happened to me, a bang then no more forward gears. Check your B2 piston first. If it is not broken, then most likely its your band. I had pieces of the band in my pan.

buffa98 · #3 03-01-2010, 11:15 AM

That is what happened to po of my car went to work one day everything fine.(1.5 mile) Went to leave that night nothing. Seems funny now but he backed home, I was the guy in front or behind depending on perspective with the 4 ways on as he putted to his house.
It wound up needing a new tranny.

whunter · #4 03-01-2010, 11:19 AM

Quote:

Originally Posted by probear

Here's what happened. Car ran fine yesterday. Started up fine tonight, temp somewhere around 35F, car started fine, and backed out of a steep driveway without a problem. Into forward, and again, short uphill climb, and again, no problem. Drove about 1/2 mile to a stop sign, stopped and then pulled out.

After about 10 feet, a pop (not really loud enough for a bang) and no forward gear. Put it into reverse and it worked. Back into drive and nothing. I backed out of the middle of the street and a few hundred feet up the side road.

Just to make sure, drive again, and it seemed like it might try, but nothing. Decided to try adding a quart of transmission fluid. One quart later, still nothing.
Backed the half mile back to GF's house and parked it. Too dark and cold for a better look, but no apparent fluid on the road anywhere.

Comments and suggestions really appreciated. Once again, there was a pop, then no forward gears. Reverse seems fine. There is a slight, very slight occasional grab attempt, but nothing in drive.

HELP !!
Thanks.....

B2 Piston Failure
http://www.peachparts.com/shopforum/showthread.php?p=1048115

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http://www.peachparts.com/shopforum/showthread.php?p=732079

B2 Piston W124
http://www.peachparts.com/shopforum/showthread.php?t=109035

Transmission:
http://www.peachparts.com/shopforum/showthread.php?t=142395

Have a great day