xzotik1

You're right a 7k Benz transmission failure. Is 84000 miles premature?


It will go in drive and reverse, but zzzzzzzzz at 5 mph. Or will not go at all.


All service is up to date,transmission was serviced at 55k. Seems like its not all the way in Gear

Carsy

Interested to know what the tech said caused the failure.

Was 55 k miles the first transmission flush?

Did you 'hammer' the transmission or drive reasonably over its short lifespan?

Good luck with the repair. Maybe the damage is not as expensive as you fear.

Rocman8

could just be the front pump. hope for no metal in the system. pull a trans line off the radiator and start the car to see if there is fluid flowing. if not then pull the trans pan and check for metal shavings.

FknBoss

Sounds like an axle popped out or stripped the splines.

xzotik1

occasionally I drive my car aggressively. before this happened i noticed, a clack noise when the car would shift down into 2nd at a red light, and when backing over the hump in my garage. It seemed to be coming from left front.(drivers side) I started it this morning, put it in drive and ZZZZZZZZZ, put it in reverse zzzzzzzzzzz. back in drive clack zzzzzzzzz.

xzotik1

could this be true, with a 4matic?

xzotik1

This happened 2 days ago.Tech never saw it, limped 2 miles home. zzzzzzzz all the way.

ItalianJoe1

Does sound like an axle broke, should be able to lift the car and run it in gear, make sure all the wheels are turning.

FknBoss

I've stripped a few axles in different vehicles and all made a pop and grinding type noise. 02 ram 1500 front passenger axle and a buick rainier passenger front. If it is an open differential it'll put all the power to the least resistance so if it stripped or popped out you won't move.

xzotik1

This makes sense...

xzotik1

would #2 be the axle you are referring to?

ItalianJoe1

No it would probably be #4 or 5, but theoretically it could have broken that front driveshaft (#2)

FknBoss

Probably more likely to be 2 or 4

FknBoss

This is a similar setup to my buick rainier I stripped what would be 2 and 4. Had to replace the half shafts and the cv axle. The splines pretty much rusted away.

FknBoss

Put the parking brake one and have someone hold the brake pedal. Put it in drive and blip the gas if you hear the zzzz noise glance under and see if one of the driveshafts are spinning. If one is say front grab a cv axle if one of them has a grinding feeling its probably stripped

Quadcammer

chances are good that its not a drive axle.

Popping out certainly isn't going to happen, and a C300 stripping the splines on a half shaft is extremely unlikely.

xzotik1

I followed your instructions, and discovered that the noise is coming from the drivers side axel only. I also found black grease in the rim well. A tech is looking at it now.

FknBoss

Perfect. Rules out the transmission then.

neek

My car just stopped and everytime it's on D without stepping on the gas, makes a loud noise and if gas is stepped...louder noise and won't even go. Is this the same issue?

FknBoss

Do what I told him to check and see.

xzotik1

The tech confirmed that it's #4. The drivers side axle failed. I found the part at rockauto.com $89.73 - $27.00 for the core.My Indy tech will charge 3hrs in labor. He has an MB parts contact...$426.00 he was told that these are ordered all the time for 4matics.

FknBoss

There you go. Everyone jumps to the worse. You must start at the beginning. Glad you only need $400 instead of $7000.

neek

#5 broke, passenger side. But going to make sure tomorrow it's the only thing that broke, fingers crosssssed!

babyboxer1

I'm glad it wasn't anything serious for either one of you - all the recent posts regarding transmission failures recently have gotten me so worried about mine.