Hey all,

I'm new to Porsche. Not new to cars. Not new to maintenance. Not new to being an idiot, either.

I executed well on the idiot today.

I attempted to change my oil on my 02 996TT. I only drained the oil pan I believe. Not the crankcase. Not the reservoir.

... then I added 8 quarts.

Then I proceeded to *attempt* spark plug change without bumper, etc removal. That's a whole different fail. But we got 15%ish percent complete before realizing this was almost impossible.

Anyways, back to the oil.

I started the car to check the level(why the f do they not have a manual check method?) and let it idle to operating temp. To my surprise and concern, I saw a good bit of oil smoke from the exhaust. Not a ton, but enough to worry. When warm, I saw the level at the max. Googling resulted me in finding out I forgot to drain it all and probably was 6 quarts over max.

Turned the car off, rolled it back into the work area, drained the crankcase, drained the reservoir... started the car. Still smoke. Turned it off. Drained the crankcase again. Turned the car on, still smoke, but I let it idle to operating temp -- oil was at a level extremely low. Filled it with 5-6 quarts of oil. Still max low. I needed more oil and oil pressure was fine so I could take it easy to find another quart or two.

Pulled to the parking lot and it was BILLOWING smoke. Extreme amounts. Revved it up to 2-3k rpm to see if it would "burn off". No luck. Tons of smoke. Turned it around, idled it into the garage. Turned it off. So it sits still Tuesday.

My goal tuesday is to get the level to a standard amount... then rip apart the intake and MAF and see if there is oil in there. I'm guessing yes.

I don't have cats but I may need to swap the O2's. Possibly the plugs?

Given the car was still SUPER low after draining the crankcase and the reservoir.... then adding 5-6 quarts. How overfull was it really?

What else should I look into? Given the car wasn't driven, just idled and revved a few times(nothing high, no boost), what do I need to worry about?

Thanks y'all

 

I feel your pain.

You're in the right direction: drain correctly, fill correctly, clean the intake. I would also clean the O2 sensors.

If I were you, I would stop right there and I would hope that everything will burn off. It will take a while for the smoke to disappear.

Wait for others to chime in.

 

I don't understand why you would start and let it run with crank and oil tank empty= not good. Get the oil to proper level and do the things you mention and it should clear up. There are good diy oil change procedures here on 6spd.

 

I didn't let it run on too low - it had at LEAST 6 quarts. Isn't enough but isn't catastrophic.

Mostly worried about when it ran on too much.

 

get the bumper off and remove the MAF/intake-pipe to turbo pipes and watch the oil drain out, also remove the turbo to intercooler pipes and watch more oil come out...would also wash the intercoolers out with a mild solvent and go from there...once complete reassemble and let the car burn off the remaining oil stuck in turbos/piping/intake manifold/rings etc...
7.5 quarts/litres is about right for initial fill after draining both oil tank and crankcase, let both drain for a number of minutes

 

That's not bad I read as started car let get to operating temp still low added 5-6 quarts. Clean the intake system out and put some new plugs in, hopefully you should be fine

 

Overfilled and then drained both the crankcase and oil tank? Then drained crankcase again? That's ALL the oil! It holds, all told everything drained and filled, 9quarts....

 

Mine held almost exactly 9 after draining all reservoirs. 8.5 was a bar or two from the top. You're right though he's got oil in the intercoolers almost certainly, may foul the plugs, piping is probably gooed up badly. It's going to be a mess to clean up assuming he didn't actually run it up to operating temp with no oil as his description I quoted before seems to say.

 

I agree on capacities, I usually load them up with 7.5L for initial fill and top-up from there, about 1L..litres being slight larger than a quart... usually filled to 1-2 bars below the 'full'/2-3 below the maximum readout...
Going to be a fun clean-up....plugs are probably a good idea, as is checking the MAF for residue...O2's are required IMO..

 

Mine holds almost 9qts also with everything drained.

 

thanks for the input guys.

to correct: didn't run on no oil to temp

also

i didn't drain the oil pan the second time, just the crankcase and reservoir

 

There is no oil pan. You have crankcase-reservoir and 2 turbos to drain.

 

what are you referring to as oil tank vs reservoir?

 

the proper protocol for an oil change ( while leaving the turbos alone ) is:

drain from the two drain points crank and reservoir. add 7 qts, bring to op temp, check oil with gauge ( you should then be about 4/5 qt low ) add approx 1 more qt and you'll be 1/5 a qt from the top line of the gauge. add the ad'l 1/5 if you like. i just changed mine and i have lost a drop according to the gauge in a few weeks of hard driving using 5/50 castrol edge.

always have the manual or a reputable DIY printed and handy the first few times you attempt this stuff. you've neglected to drain probably 5 qts. from here i'd flatbed it to a shop, but perhaps you can get yourself out of this by FULLY draining and beginning anew. i wouldn't count on it though unless you very skilled and know what you need to drain/clean ( turbos/inlets etc ), good luck!

 

I must have read the oil change process a dozen times before I attempted it. What I did was measure all the oil I removed to make sure the amount I added matched what was removed. I did not change the turbo oil as the amount of oil and potential damage I could cause.