Manual trans overfilled

[markpitarresi]

A shop overfilled my transmission on a 2005 997 6spd. They used the wrong fill plug. I drove the car from their shop home about 45 miles mostly highway before noticing. I called the shop and they said no worries they will take care of it but I would need to get the car back to them.

 

I jacked up the car and placed level on jack stands. I pulled the correct fill plug and at least 2 quarts came out. by inspecting the transmission it looks like the fluid was coming out around the passenger side axle.

 

Does anyone know what could be damaged by driving the car with an overfilled transmission. I am confident the shop will make good but I would feel much better if I understood possible damages to the transmission/seals.

 

[JFP in PA]

Possible seal leaks, but I would also watch the air vent holes on the bottom of the bell housing area near the flywheel; if you severely overfill one of these, you can end up with gear oil seeping out the input shaft housing and onto both your clutch and the DMF.

[wizard]

If you're planning on driving the 45 miles back to the shop, you'd be well advised to ensure that the transmission is correctly filled before setting off.

 

There are normally very precise procedures for filling depending upon the transmission on your car.

 

P.S. 6-speed. My mistake. Please ignore ;-)

 

 

 

Edited January 10, 2017 by wizard

[markpitarresi]

Thank you! What is the DMF?

[JFP in PA]

Dual Mass Flywheel.  These cars use a dual mass unit that is also the torsional and harmonic dampener for the engine, and it has elastomeric components that do not take well to being oiled down.  Once damaged, they have to be replaced, and cost about $1K.

[markpitarresi]

Thanks to all for the info. They are sending a tow truck so they can inspect everything before it gets driven again.