NEED HELP finding leak...pics included!

**Allaidback** · 06-16-2008 10:10 PM

Ok so here is my leak...I thought it was an oil leak at first, but the leak is right between the catalyic converters?

**The_Jerbel** · 06-16-2008 11:44 PM

Looks like the drive axle output flange seal is leaking...

**rms-s4** · 06-17-2008 05:26 AM

ya the drive shaft output seal is leaking. VERY common. i stock that in my box cause every audi i work on usually needs it. great job for a flat rate tech. 2.5 hours in 20 minutes

**Allaidback** · 06-17-2008 07:35 AM

so how do I fix it? Do I need a new seal/gasket? Do I have to replace anything? Thanks for the info.

**rms-s4** · 06-17-2008 10:25 AM

its a seal . trans output shaft seal
018 409 399 b thats your audi part number

**Allaidback** · 06-17-2008 11:37 AM

thanks guys...ive also been searching for a diy and cant find anything. Does anyone know any links that might help me out with this?

**jakecro** · 06-17-2008 12:21 PM

all you need to do is remove that heat shield, unbolt the drive shaft from the output (6mm allen x6), clean up all the grease etc. and then apply new gasket....come to think of it I may have a spare gasket lying around...

**Allaidback** · 06-17-2008 01:40 PM

Originally Posted by jakecro

all you need to do is remove that heat shield, unbolt the drive shaft from the output (6mm allen x6), clean up all the grease etc. and then apply new gasket....come to think of it I may have a spare gasket lying around...

Thanks jake...call me if you find it, if not I'll go ahead and order one.