991 TT Spark plug Change

[Mijostyn]

Hi all,

It has been a while. Anyway My TT is over 5 years old now and although it runs like a top a Spark plug change is recommended on a time basis. The car only has 16K miles on it.

I'm also supposed to change the PDCC reservoir. I'm not even sure where the pump is. I most probably have to take the rear bumper off to get to it.

The spark plugs are being blocked by the turbochargers. You can get good access by removing the rear wheels and the rear wheel well liners but do you really have to move the turbos? Or, is this just a mater of juggling extensions and scraping knuckles? 

[tallers]

I was under the understanding that the engine needed to be lifted slightly to get access to the back spark plugs.  My 2015 TT has 14K miles.  I plan to wait until the car reaches the 30K mileage mark before considering the spark plug change.

[mikerosi]

You do not have to move the turbos or lower the engine

I did it and while it was a challenge it was very very doable

if you guys are interested in maintaining your car correctly you have to be aware of the time limits

spark plugs are four years or 30,000 miles

So you have five years on your spark plugs and you’re not doing your car any favors

[Mijostyn]

mikerosi, how did you do it? Obviously you have to take off the rear bumper which I have done. No big problem. Did you have to remove anything else like the rear fender liner or intercooler duct work?

[mikerosi]

On 1/15/2020 at 6:56 AM, Mijostyn said:

mikerosi, how did you do it? Obviously you have to take off the rear bumper which I have done. No big problem. Did you have to remove anything else like the rear fender liner or intercooler duct work?

Yeah bumper comes off and also intercoolers before I started I took off the wheels as well

[Leo E Waner]

I'm curious, I just completed a plug & coil replacement on a 2011 Porsche 911 Turbo S [at 40K miles] , by myself, with a pretty basic garage and tool set and took me almost 10 hours over two days.  The challenges I faced were substantially in removing the two rear heat shield bolts over the plugs on both sides, AND the three bolts on the passenger side VTG.  While accessible, the quarters were very confined... BUT the big issues was the TIGHTNESS of these bolts... All of these bolts "pinged" when they finally broke free.  The difficulty in getting the rear heat shield bolts restarted was also a time consuming challenge for me!  Maybe I'm just out of practice working on cars?.  Should these bolts be replaced, the ones that were so f*cking tight and "pinged" upon loosening?  That is what took the two days.... I sprayed with blaster and WD-40 and let them set overnight?  I used liberal amounts of anti-seize compound upon the reassembly... but???  I can't believe these bolts were not over-torqued... but maybe heat, and no anti-seize could have something to do with it??  The heat shield reassembly was my down fall the left side rear shield.... one bolt I dropped numerous times attempting to start with the tips of my fingers... one time the bolt didn't fall to the ground and spent about 1 hour looking for it with my little magnet.  It was ultimately found on top on the exhaust header.... had to find it or I was done??  Could not find a comparable bolt anywhere in extensive collection of metric bolts... YIKES?!?!?!  An E-torx socket with a wobble extension and a universal attachment wouldn't work on the heat shield rear bolt, used a 8mm box end hand wrench to loosen, held with a ViceGrip pliers & reinstall, just with the box end wrench... but a devil to get these bolts started....... but, Ultimately success!  Strategies for a better process or tools are welcome.