||12-18-2011 08:21 PM
2006 TJ Rubicon NSG370 Transmission Leak Problems
Hello, I've got a 2006 TJ Rubicon w/ ~78K miles on it with a 4.0 L engine and a 6-speed NSG370 transmission. The transmission is a Mercedes and requires a specific transmission fluid (cheapest that is compatible according to manufacturer specification is Pennzoil Synchromesh). During a clutch replacement/repair job at the dealership, I had them change transmission fluid (since I bought this jeep fairly recently and didn't know the last time it was changed). About a week later, I noticed transmission fluid slowly leaking from the front of the transmission (although the specific leak point was not obvious).
I'm not positive and cannot prove it, but my guess is that the dealership put in the wrong transmission fluid and that this caused the leak. I promptly drained the fluid and replaced with the Pennzoil Synchromesh, which is still leaking but at an even slower rate. I then tried adding some Lucas Transmission Fix, which seems to have actually worsened the leak. To further complicate the situation, the rubber boot at the base of my shifter (underneath the outer leather boot cover) has been eaten away and is basically just a sticky mess of greasy rubber and fluid of some sort (I'm assuming tranny fluid of course).
Long story short, does anyone have any ideas or suggestions on how to remedy this? Obviously I need to locate the cause of the leak, which I'm assuming is at one or more of the transmission seals that now need to be replaced? I also need to replace the rubber shift boot, but I don't want to do that only to have it eaten away by the fluid again... Any help on this would be greatly appreciated. I know that the dealership will deny putting in the wrong fluid, and I can't afford to pay for them to diagnose and fix the problem at present. Currently I'm just adding about 1/3rd a bottle of Pennzoil Syncrhomesh per month to 'top off' the transmission.
Thanks in advance. I'm obviously a new member and am looking forward to participating in what looks like a great forum!