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Thanks a lot Loren! Then I can move forward with vacuum filling.
Wow, that´s what I call a quick respons Loren! Thank you. Just to be sure…my interpretation of your answer is: The vacuum filling process also require to pull out the fuse B-1 as the electric switch-over valve shall be off so the shut-off valve can be open, as the water temperature surely would be below 80°C when filling. The ignition shall simultaneously be switched off during filling. Right!?
I have just finished installation of a new water pump, thermostat and coolant reservoar cap (OEM Porsche parts) in my 996 C2 Targa/Tiptronic 2002 and is now ready to do a vacuum coolant fill mixed to factory specs. When I read different instructions for manual filling/bleeding coolant system in a 996 equipped with Tiptronic gearbox they instruct: ” On Tiptronic vehicles, the pneumatically triggered coolant shutoff valve (flat-seat valve) must be opened for the bleeding process. The electric switch-over valve must be switched off for this purpose. Triggering can be performed with the Porsche System Tester 2 or by pulling out the Tiptronic control module fuse B-1 with the ignition switched off.” I can´t see this comment in any instruction for vacuum coolant fill. So, before i start the process my humble question is: Is this comment also relevant to a vacuum coolant fill on a Tiptronic car? If it is, shall the ignition be switched on during filling process? /Swedespeed
You bet! :)
Yes. Now you make me nervous! Maybe this is a result of inadequate designations of the fuse table. Or, maybe this will show upp as THE problem… We´ll see.
Yes, yes, yes! I did a quick check and you are right, fuse #A8 was broken! You may wonder why I didn´t checked fuse #8 at the same time as #5. Well, I did check the complete table for the fuse panel which - as you know - is a small piece of paper located at the back side of the flap. For my car this dokument is translated and printed in Swedish and the only designation for license plate light is A#5. Number A8 is designated as ”Not in use”! When I now read the english/american version, #8 is designated as ”License Plate Lights Canada”. So that´s the reason. (Obviously, the technician at Porsche Center didn´t know this either). This is important to know for all who have a car in a non english/american country equipped with DRL. Another thing is why the fuse was broken. Well, when I changed the bulb I probably shorted the circuit. I must say it´s been an annoying time not to find the fault, but you solved this mystery and saved me a lot of money. Thanks a lot, all of you, for your dedication! This is a brilliant example of the strength of this forum which also demonstrate the importance to contribute to the operation of the site.
Thank you guys for your involvement! Yes I have daytime running light and no recent body work has been done. Regarding the fuse, I´m talking about #A5, 15A with designation ”License plate lights, locating light, instrument lights”. In accordance with your theory xmac, I visited my Porsche Center today and the techs switched the daytime relay with no success. In fact, they looked rather frustrated and suggested me to look closer at the connector - you Asahi - mentioned, x2/4 at the base of the B pillar below the carpet. Guess there will be a lot of strip down to access x2/4… At the moment I have no time to do this, so I have to halt this thread for about two weeks and be back with further information.
The number plate lights at my 996 Targa 2002 refuse to shine. I have read all threads I can find regarding this matter on this forum and have done the following measures: Checked the fuse and it´s OK. All other electrical consumers attached to this fuse including the instrument illumination is OK. Replaced the headlight switch with a new one and also the two license plate lights including bulbs. No light. Removed the rear bumper lining to check the connection behind. There´s no power. Can a cabel break really be a convincing possibility? Is there anyone who can give me a clue, or even an solution, to this mystery???