It will cost much more than this if the work is performed by a Porsche Tech due to the high labour charges. I don't think ACC is available via Tequipment as an aftermarket option given the requirement for additional hardware (factory fit only).
Porsche learned from other car companies to not include any unused hardware in the car. If you didn't pay for an option, they don't want to include any hardware to avoid a backlash like BWM is getting for allowing people to subscribe or buy outright options like heated seats, or active suspension, or MB for rear wheel steering FOD (or whatever they call it), or KIA for heated seats and multi-zone climate control. This will probably continue until Gen-Z, who grew up buying apps and virtual goods in games, becomes the primary customer base - they might appreciate ability to buy a cheaper product and upgrade it later when they can afford it. Tesla also tried it, with software locked batteries, with software locked performance motors - all it got them is a ton of hate every single time, including some organized owner demonstration in Europe, so they started shipping batteries with less modules and redesigned, less capable motors with thinner wiring so the nobody complains that the motor they paid for is capable of more power but Tesla wants more money for it. Sometimes we cannot have nice things because some other people ruin it for everyone.
AFAIK the only way Porsche will officially do the upgrade is by you trading in your old car and buying a new one with ACC. The techs do not have an official procedure on how to do this upgrade, so they will not even attempt it. You'd also never get Porsche warranty to cover it either. Only entrepreneurial 3rd parties may attempt such a retrofit, but unless they've done this before, they will likely charge an arm and a leg to figure it out (the next guy will pay less).
There's a You Tube of an official dealer fitting it to a Macon, I think. Hardware, Cut Hole, Run Wires, Update Software.
The answer is simple - Porsche does not have an official bulletin with procedures how to perform the retrofit so that the car meets Porsches standards/specs. without an official bulletins, some dealer may cut a hole one way, others another, perhaps in a slightly different place. Some may fully and correctly code the car, others may miss thing. The result may work, but Porsche only tested the sensor in the location within manufacturing specifications. 1 mm over, it probably will work, but Porsche is not touching it. Check out the $72K bill for a 3.33 mm gauge (0.33mm over tolerance spec) in the battery with no warnings or failures on the car - still instantly excluded from warranty.
I suspect the warranty will be limited to 12 months and separate to the car warranty.
Shortcomings? We also have a 2023 POLO it has it and it makes driving from London to Scotland a joy. Normal cruise can make you crash, ACC prevents you running up the back of someone... if asleep (Joke).
In my experience it is prone to misjudgement when reliant on road markings (poor in UK) and signage, speed limits and sometimes direct sunlight. Many folk who have ACC end up disabling some of the features. The Taycan already comes with a speed limiter and cruise control (which can consider speed limits too), personally I see no need for a 3rd. Speed limiter is problematic too due to random changing speed limits and the lack of restriction signage. Nice graphics but...
Indeed. I would have paid extra not to have it since I don't like it on the cars I have owned where it was standard fit but luckily it was an option so I could avoid it
Thanks. I'll look that up. Great advice.
