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steveoz
Monza


Joined: 21 Mar 2011
Posts: 162



PostPosted: Wed Mar 23, 2011 6:51 pm    Post subject: 996: Changing front bumper / cleaning out Rads Reply with quote

I swapped the stock PU for a GT3 PU today on the front - also cleaned behind the bumper and took a look at the rads to see if any gunk was caught in them. Please to say they was very little in them, but then they are only around 6 months old.

New PU:









Pop out / pull out indicators/ side repeaters:

[image]http://i565.photobucket.com/albums/ss99/steveoz32/gt3bump/gt3front5.jpg[/image]

Remove small screw behind repeater:



Turn wheels to gain access to arch liner. I'm actually trying to point to a plastic rivet under the arch liner here, spay it with lube and remove:



Pop bonnet, turn four caps half a turn so they are horizontal rather than vertical:



Pull up from the sides first:



Then manipulate over bonnet release:



Remove two small screws under this that retain the bumper:



Next is the tricky one, pull arch liner back, and put your hand in, you can pull the liner back enough to peer in at the screw and line up a screw driver, it's a phillips screw, you can see the top of it coming through the mounting here:





Go around underneath the bumper removing screws, there should be one Torx in the centre underneath, two phillips either side, then another phillips at the back corner near the wheel:







Remove airdam, it's held on by four torx screws, two on the outside, two on the inside of the scoop, it then just pulls off (some crud may fall out of the scoop as you remove it):



Undo two more torx screws on the inside of the condensors (toward centre of the car) then slide toward centre of car and pull out:



You may see some leaves etc in between, clean them out:



I washed and cleaned the scoops and everything behind the bumper at this point:



Same on other side (take care not to damage the *air temp* sensor, push the rubber gromet through the scoop and the sensor with it) *edited*:



Back together and everything clean:



Relocate bonnet pull in a suitable 'secret location'.....replace bumper:



Bolt everything back up:



Job done.

Last edited by steveoz on Wed Mar 23, 2011 10:41 pm; edited 1 time in total
 
  
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GT4
Nordschleife
Nordschleife


Joined: 08 Nov 2008
Posts: 30174
Location: Hertfordshire and Hampshire


PostPosted: Wed Mar 23, 2011 7:28 pm    Post subject: Reply with quote

Nice.

The sensor in the air channels is the external temperature sensor.



This is what mine looks like "naked":



Video too:


Open Youtube Page


Fixing locations:

 
  
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steveoz
Monza


Joined: 21 Mar 2011
Posts: 162



PostPosted: Wed Mar 23, 2011 9:40 pm    Post subject: Reply with quote

lol cool! Wonder why I have one of them? No computer for me Sad

Yours looks very clean indeed Very Happy

Thanks for posting up the vid and diagram
 
  
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leacarrera4
Montreal


Joined: 28 Dec 2010
Posts: 526
Location: essex


PostPosted: Wed Mar 23, 2011 9:47 pm    Post subject: Reply with quote

thumbsup looks good steve,great colour match
 
  
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steveoz
Monza


Joined: 21 Mar 2011
Posts: 162



PostPosted: Wed Mar 23, 2011 9:54 pm    Post subject: Reply with quote

leacarrera4 wrote:
thumbsup looks good steve,great colour match


Nice one Lea, thanks for bringing the bumper down and pointing me in the direction of this forum worship glad you got yours sorted too - from the pics I saw it's looking good! Post up some more pics when the sills are sorted.

Now we just need to both sort out a rear wing? Smile

Pleased with how it turned out, it's going to take some getting used to though as I'm so used to seeing the other one.

By the way guys, sorry to spam the forum with pics, but I thought I'd post all these pics up as I've got a huge file of pics for my car - always photograph everything I do, so started posting them up on here hoping they would come in handy for someone sometime.


Cheers,
 
  
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GT4
Nordschleife
Nordschleife


Joined: 08 Nov 2008
Posts: 30174
Location: Hertfordshire and Hampshire


PostPosted: Wed Mar 23, 2011 10:30 pm    Post subject: Reply with quote

steveoz wrote:
lol cool! Wonder why I have one of them? No computer for me Sad

Yours looks very clean indeed Very Happy

Thanks for posting up the vid and diagram


The external temp sensor is not for your benefit.

The car has at least 5 temp sensors or thermostats dotted around (Tip has more).

They are used for all sorts of monitoring and adjustments, the front external temp sensor is used by the CC and DME for fuelling maps (possibly others).

Even though you don't have the OBC optioned from factory, you still have all the data running round the loom.

You can retro enable OBC in two ways: add a stalk (it just screws in), or add a toggle/rocker switch like those on the centre console (PSM, rear wiper, heated rear screen, door lock etc), then get PIWIS/PST2 to tell the instrument binnacle to show the data (technically you don't really need the stalk or switch, unless you want to change the display - ie temp, range, mpg etc).

Alternatively, you can hijack the diagnostics mods in the CC:

If you have a prefacelift 996 (Boxster lights, pre 2001/2):

Try this for a more accurate monitor of engine coolant temp:

With engine turned on, using the climate control buttons press and hold the UP button then at the same time press and hold the RECIRC button in.

After 5 seconds or so of holding the buttons the didital display changes to say 1c.

Press the + button on the temperature control (not the fan speed +) until 1c changes to 6c.

Now press the CENTRE button on the climate control below the UP button (this is the button for directing air through the centre dash vents).

The display should now show the digital coolant temp (actually 85-92 degrees is normal, although hot weather and racing will send this close to 100 or beyond. 105+ may indicate a problem, particularly is it isn't hot weather and you aren't racing!)

To exit this mode back to normal AC mode, press the AUTO button.



Here are a list of possible options (not confirmed):
Quote:

Press and hold the UP button then at the same time press and hold the RECIRC button in.

After 5 seconds or so of holding the buttons in the display changes to 1C.

To see the reading corresponding to 1C press the button on the climate control below the UP button (this is the button for directing air through the centre dash vents).

To move back to the 1C press that button again. To go to 2C, 3C, 4C etc etc press the + button on the temperature control (not the fan speed +).

To exit this mode press the AUTO button.
-----------------------------------------------------
0c - ERL
1c - Oil Temp (NA for PORSCHE)
2c - Inside Temp - From the Sensor mounted in the Aspirator Assembly at the side of the Dash
3c - Outside Temp - From the Sensor inside the Air Inlet of the A/C Unit
4c - Outside Temp - From the Sensor in Front Grill of the Radiator. Data is fed to the Climatronic from the Instrument Cluster. When not moving, the Instrument Cluster OBC Temp Display retains it's last setting until moving. This is to prevent heat emanating from the Radiator affecting the Temp Sensor. The Climatronic uses the lower of the two values in determining Fresh-Air Temp.
5c - Outside Temp - matches OBC outside temp display
6c - Coolant Temp
7c - Footwell Discharge Temp
8c - Sun Sensor (dash top)
9c - Sun Sensor
10c- Passenger Compartment Fan Speed
11c- Passenger Compartment Fan Voltage
12c- Temperature Mix Flap Command (1=COLD, 100= HOT)
13c- Temperature Mix Flap Position
14c - Central Flap Command
15c - Central Flap Position
16c - Footwell/Defrost Flap Command
17c - Footwell/Defrost Flap Position
18c - Recirculation Valve Command (1=OFF, 100=RECIRC)
19c - Recirculation Valve Position (feedback)
20c - Vehicle Speed in kph, updates once per second. This is True Speed, not the Speed+Safety Margin displayed by the Speedometer.
21c - Engine RPM in hundreds, also updates once per second
22c - ?
23c - ?
24c - Sun Sensor, Exterior Lights Switch, and Panel Lights control (term.
58 & 58d voltage) - used for A/C Panel Display Illumination
25c - ?
26c - ?
27c - ?
28c - Fan Speed
29c - ?
30c - Engine Run Time in seconds (255max.) (=0Xff)
31c - Timing Counter
32c - Displays Test
33c - Software Version (usually 3.4)
34c - ?
35c - Outside Temp from Inlet Sensor (filtered)
36c - Temp


Last edited by GT4 on Wed Mar 23, 2011 10:35 pm; edited 1 time in total
 
  
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teetooshuggerz
Monza


Joined: 18 Nov 2010
Posts: 198



PostPosted: Wed Mar 23, 2011 10:33 pm    Post subject: Reply with quote

Dont apologise!more pics the better i say Thumb nice job that!i might take mine off now just to have look Cool
 
  
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steveoz
Monza


Joined: 21 Mar 2011
Posts: 162



PostPosted: Wed Mar 23, 2011 10:35 pm    Post subject: Reply with quote

Interesting - I'll give that a bash Smile

I've checked out temp sensors on my durametric before when trouble shooting a running issue when getting hot / running temp (turned out to be crank sensor). I recall seeing engine temp, oil and engine bay temp but can't remember seeing the others, will take a look.


Cheers,
 
  
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mgeorgek
Suzuka


Joined: 13 Jan 2010
Posts: 1189
Location: Middx/Herts


PostPosted: Wed Mar 23, 2011 10:56 pm    Post subject: Reply with quote

Nice job looks really good and well documented. Thumb
 
  
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AdeD
Imola


Joined: 10 Oct 2010
Posts: 824


2010 Porsche 997 Turbo

PostPosted: Wed Mar 23, 2011 11:48 pm    Post subject: Reply with quote

Nice one Steve, excellent write up and pics, looking v v nice now, much more aggressive stance, especially with the lowering springs Smile
 
  
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steveoz
Monza


Joined: 21 Mar 2011
Posts: 162



PostPosted: Thu Mar 24, 2011 10:02 am    Post subject: Reply with quote

Cheers guys Smile and thanks Ade, a few pics from the other site:









Are you down Bournemouth way?
 
  
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JKH112
Spa-Francorchamps


Joined: 28 Jan 2011
Posts: 358
Location: Bristol

2001 Porsche 996 Carrera 2

PostPosted: Thu Mar 24, 2011 8:32 pm    Post subject: Reply with quote

Good write up. Looking at the pics got me wondering if the number plate would look better mounted lower, in the redundant middle air intake. I know some cars (mine included) have a centre radiator, but on the cars without the 3rd radiator it would seem like a location which would not obscure the shape of nose. Has anybody tried this?
 
  
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steveoz
Monza


Joined: 21 Mar 2011
Posts: 162



PostPosted: Thu Mar 24, 2011 11:49 pm    Post subject: Reply with quote

JKH112 wrote:
Good write up. Looking at the pics got me wondering if the number plate would look better mounted lower, in the redundant middle air intake. I know some cars (mine included) have a centre radiator, but on the cars without the 3rd radiator it would seem like a location which would not obscure the shape of nose. Has anybody tried this?


Thanks. I suppose it would, I bonded the cover on to the centre before fitting, there is really no use for that space on my car, although it may spoil the lines of the bumper though it is that OEM look - I'd have concerns that changing the location may look a bit too aftermarket? Would be interesting to see what it looks like though.
 
  
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carlos
Silverstone


Joined: 25 Sep 2007
Posts: 142



PostPosted: Sat Mar 26, 2011 11:47 am    Post subject: Reply with quote

Did you move the bonnet opening lever ?.

Mine is visible when the bonnet is closed and id like to know more about the possibility of moving it.

Carl
 
  
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steveoz
Monza


Joined: 21 Mar 2011
Posts: 162



PostPosted: Sat Mar 26, 2011 1:23 pm    Post subject: Reply with quote

Hi,

Funny you should say that, mine is also visible, but it's because of the red cap on the lever, I am going to see if black ones are available, if not I was going to look into getting some made up.



Cheers,
 
  
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