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I made a Plug & Play cable to install between the oil temp sensor and original cable controlling the speed of the oil cooler blower. 2nd blower speed (high) kicks in earlier resulting in an oil temp just above the 3rd line max on your oil gauge (90celcius). Perfect in hot conditions during trafic jams, track days or hot summer days! Easy install and easy removal. Cost cable 75,- euro, shipping cost between 13-24 euro. PM me if interested?
If you live in the US, USPS Will deliver the package. You can use the dutch track&trace code (starting with CL) to trace the package.
Open link below: https://tools.usps.com/go/TrackConfirmAction_input
I made a Plug & Play cable to install between the oil temp sensor and original cable controlling the speed of the oil cooler blower. 2nd blower speed (high) kicks in earlier resulting in an oil temp just above the 3rd line max on your oil gauge (90celcius). Perfect in hot conditions during trafic jams, track days or hot summer days! Easy install and easy removal.
PM me if interested?
I received positive feedback from 2 persons.
Installation 25min. Oil temp stable at 3rd line.
This is a nice idea and looks OEM. How much and has it been tested on a car that needs the ballast resistor replaced ? Its my understanding that without a working ballast resistor the fan will not run in slow speed...
Thanks!
There is a 993 mod where you can switch the fan on at anytime.
This mod is the same for the 964...it's just a couple different color wires between the different model years that have to be spliced into a switch. I did this already on my 964 and use it every time I drive. It's great for traffic and also to switch it on ten minutes or so before getting home so that I can shut the motor off right when I pull into the garage and not worry about shutting off a motor that hasn't cooled down enough yet.
Can you share the link to the DIY? I need to do this. It's been warm in LA lately.
Originally Posted by Lorenzoh
This mod is the same for the 964...it's just a couple different color wires between the different model years that have to be spliced into a switch. I did this already on my 964 and use it every time I drive. It's great for traffic and also to switch it on ten minutes or so before getting home so that I can shut the motor off right when I pull into the garage and not worry about shutting off a motor that hasn't cooled down enough yet.
Can you share the link to the DIY? I need to do this. It's been warm in LA lately.
From what I can tell, it's just a jumper/bridge harness (that contains the small resistor that other people splice into the OEM wiring) that gets plugged into the temp sensor on the oil cooler. Easy install but will require removing the FR wheel and wheel well liner to gain access to the oil cooler. I did this recently when I changed a bad temp sensor on the oil cooler - super easy 15 min job, floor jack, lug/torque wrench and screwdriver for wheel well liner screws.
OP pls correct me if I'm wrong...
EDIT - sorry I misunderstood your question. The above is how to do the Plug and Play mod discussed here. Below are couple links that should help you out. I have a few extra switches and live in LA, happy to give you a switch and walk you through it in person if you like:
This mod is the same for the 964...it's just a couple different color wires between the different model years that have to be spliced into a switch. I did this already on my 964 and use it every time I drive. It's great for traffic and also to switch it on ten minutes or so before getting home so that I can shut the motor off right when I pull into the garage and not worry about shutting off a motor that hasn't cooled down enough yet.
Exactly. I did that to my 996 because that car saw track.
3TT do not see track and temp never went past 8:30-8:45 so there is no need at this point.
The 964 will get oil changed into V twin 20/50 and see where the temp goes this summer before modding.
I Made the cable to prevent soldering the original cable and not everybody is handy enough to solder.
I used a pot resistor to fine tune the exact resistor value. Use high quality connectors (Bosch).
Plug & Play in 20min.
This is a nice idea and looks OEM. How much and has it been tested on a car that needs the ballast resistor replaced ? Its my understanding that without a working ballast resistor the fan will not run in slow speed...
Thanks!
Tested on 4 964's. Works on All 4.
Correct, if ballast restistor is defect indeed fan Will only run in slow speed.
I Made the cable to prevent soldering the original cable and not everybody is handy enough to solder.
I used a pot resistor to fine tune the exact resistor value. Use high quality connectors (Bosch).
Plug & Play in 20min.
I’m sold. How much? Or, shoot me a private message if you’d like to discuss pricing privately.
Thanks 👍
This is a nice idea and looks OEM. How much and has it been tested on a car that needs the ballast resistor replaced ? Its my understanding that without a working ballast resistor the fan will not run in slow speed...
Thanks!
No critisicm, but why test it on a car that needs fixin'?
No critisicm, but why test it on a car that needs fixin'?
For one, the ballast resistor is a cheap and fragile piece. Many times they look fine/undamaged, but still do not work and require replacement and lots of troubleshooting for nothing. If it were an easily accessible part then it would be a moot point. But these things are tucked away on top of the oil cooler virtually impossible to remove from behind and require removing the entire front bumper. Or, you can leave the unit installed, unplug it, plug the new one in and mount it in a more accessible location. Neither of those are good options IMO and this easy plug and play harness is an easy way to confirm or deny if the ballast resistor is functioning properly since this harness makes the slow speed fan kick on earlier and slow speed fan op is controlled by the ballast resistor.
I know, a very complicated way to check to see if a very vital part is working, but this is just another of the many design flaws IMO that Porsche chose to use by having the CCU control the oil cooler (and lots of other things).
06-10-2019, 01:14 AM
Plug & Play Oil cooler mod
