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The Tip has a vent valve to exhaust any vapor produced by overfilling. I learned this by watching a video produced by Porsche.

check all the microswitches. Most likely the left or right flaps. there is a lid "locked" microswitch.

Serbox,

I've got bad news. The tiptronic should only lose 3.5 liters when drained.

I was performing the periodic fluid change for my 996, and had to put in over 5 liters. I did not keep track of how much came out (mistake). The tranny started to shudder and fail to shift into gear. It would shift out, the RPMs go up, then it would slam into gear. I performed the fill procedure 3 more times. during a test run, the tranny went into limp mode and threw a code, Solenoind 2 failure. I thought great. I would just fix it, and went to drop the valve body. Inside the oil pan I found gear teeth. Time for a new tranny. I am still in the process of replacing it. Also, I recovered 9 quarts. Apparently, the torque converter seal fails which would explain the excessive fluid loss.

So, if your tranny shudders or over revs the engine when shifting, perform an oil change. If you recover more than 3.5 liters, consider having the TC seal replaced.

PS I understand it is almost impossible to overfill a Tiptronic.

No. Sir Tools is "redesigning" the tool Won't be able to ship until August. Unfortunately, my Porsche is broken now. I will have to get one manufactured. So, could you re-post the dimensions in a legible manner?

Too bad Automotion takes so long to ship the bar.

Thank you.

I recently got the opportunity to replace my Tiptronic 5HP19HL transmission in my '99 996. I understand that the "Mercedes-Benz" 722.23 tranny is more robust. Which transmission should I put in? And will I need a newer TCU?

I have a '99 996 with 110K miles. When do I know to change the CV joints?

Also, the parts diagram calls for two joints per car (inner). What about the outer joints?

Off hand, sounds like a vacuum leak. The two main culprits are the oil filler tube or the AOS bellows. good luck.

Congrats. I hit 100K a month ago. Now comes maintenance.

I own a 99 996 Cab NA daily driver with comfort memory seats. I am six foot. When I am in the proper driving position, my helmet hits the roof. I must move farther back. I am about an inch too tall. Does the sport seat sit lower? Or is it the manual sliders that lower the seat? This is my daily driver, so I don't want to install bucket seats.

It is the lock assembly. Porche redesigned several times. It is a dealer stock item. I had the same problem. That fixed it.

After you remove the belt, it is a great time to remove the idler rollers and lubricate them. Use fine steel wool to knock off the crud from the bolts. Do not remove the coating on the bolt. Then use lithium grease, graphite, or molybenum to lubricate the bolt and bronze bushing. Use only a smear. The roller should spin noticeably better.

You read my mind. According the the parts list, it should be. Let us know what you find.

The door speakers are only 2 Ohms. Can your amp handle that?

Do you mean 100 micro farads? That capacitor shunts the high frequencies because the door speakers are woofers. When in parallel with the speaker, it forms a low pass filters. This is normal. The other speakers have a capacitor in series with the tweeter to form a high pass filter.

there are no "hidden" capacitors in the wiring.

I used "Never Dull" just recently on my 99 Cab. Works great, took 10 minutes per. Also, Turtle Wax'es Chrome Polish is a good choice. I own a motorcycle. This effort was nothing. Finally, Never Dull will polish the OE Mufflers and pipes to a nice shiny tan, if you have a couple of days and a six pack.

DOT's 1 through 4 are compatible with each other. DOT 5 is NOT compatible with others. Porsche uses DOT 3 or 4. Use DOT 3 if this is just a street car. It will start off with a lower BP but it absorbs less water and last the longest. Use DOT 4 or racing spec if you're going to track the car to provide the most stopping power. The local track here forces brake fluid change once a year BTW.

JFP,

what exactly will the center row of bearings do? They will never be in contact with the shaft. With the dual row, the opposing bearings on the second row will contact the shaft; increasing load capacity. But, the true solution is roller bearings with DOF. Which LN's competition is doing.

Good write up. Let me suggest two things:

When removing the torx screw behind the microphone cove, leave the screw in the hole once it is loose. Then use a pick up tool to remove it. Also, the pick up can be used to start the screw during re-assembly.

Also, when attaching the RCA jack, cut back some of the wire so the jacks lay staggered. This wasy the wiring harness is not such a knot.

Porsche uses Nickel, Silicon, Aluminum alloy and was probably machined to tighter tolerances. Check the VW Beetle blogs and forums. If it works for them then there is a good chance it will work.

Have you resolved the fitment issue? Porsche OEM Nokia speaker mount to the grill not to the body.

Tatzoo,

Sorry to answer this so late. Your tranny was probably low on oil. it slips in 3rd under hard acceleration when low. This happenned to me at the track. Flashing 4th is limp mode. Totally normal. The tranny is trying to save itself.

There is a precise fill procedure, perhaps the shop did not follow it.

Is redline compatible? ZF publishes a compatiblility listing. Use the Pentosin.

Only 3.5 liters of the 10 liters comes out during filter change.

PS: ZF makes most of the shiftable autos today. The 5HP19 series tranny's went into many cars. Getriebe is a subsidiary of ZF.

Speakers? the stock speakers are 22 Watts (Nokia). The ampflifier will blow these. That is what happenned to mine. I am now removing the amplifier and going to fix the wiring. Good luck.

It is the steering lock assembly. It is a known issue. Porsche redesigned the part several times. Go to your dealer for the part. Disassembling the dask is not difficult, just takes awhile. Go slow. have fun.