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Technical Q&A
Welcome to PCA's source of expert advice, where our PCA National Technical Committee experts answer your questions about all things technical.
2007 Boxster S with PSA Failure. PSA switch on console doesn't turn on. Replaced battery. Any suggestions??
Today | 2007 | Boxster S | Electrical
READ ANSWERHas anyone here had experience with aftermarket lower control arms for the 986 Boxster? I’d love to hear what brands you’ve tried and how they’ve worked out for you. Any info on options across different price points would be super helpful. Thanks in advance!
Sunday 07/27/2025 | 2003 | Boxster | Suspension
READ ANSWERZero electrical power, FUSE?
Saturday 07/26/2025 | 2019 | Cayenne Turbo | Electrical
I mistakenly put a standard charger on my Cayenne Turbo for 2 hours not realizing that it had a Li-on battery bc I have the PDCC and rear steering. These vehicles have Li-on standard if you have those options. I was attempting to perform an Integrated Engineering (IE) ECU flash. I went out to check it and my charger was smoking. I quickly removed the alligator clamps and when I did the entire vehicles electrical system went black. zero power. My conclusion was the batteries BMS did its ...
READ ANSWERI’m looking for a recommendations for an independent Porsche 911 paint/body restoration for my 997.1 rear bumper cover damaged by the original owner. There is gravel damage on the painted surface and lower bottom edges of the cover. I would like to have this repaired or replaced with a new cover. I’m not sure if it would easier to paint a new primered cover or refinish the current cover. Please advise?
Friday 07/25/2025 | 2008 | 911 Carrera S Cabriolet | Body
I’m open to shops in North Phoenix and Scottsdale area.
READ ANSWERWheel fitment for 2001 Boxster S?
Friday 07/25/2025 | 2001 | Boxster S | Wheels and Tires
Will these wheels fit my 2001 Boxster S?Front: 965.362.126.00 8Jx17-ET52Rear: 965.362.128.00 9Jx17-ET55
READ ANSWEREngine oil viscosity
Friday 07/25/2025 | 2006 | 911 Carrera | Engine
I like to change my oil engine using mobil one . To insure that I ordered the right spec for my car’s annual service I went on the Porsche USA site , I was referredto Mobil’s site . Mobil recommended Mobil one full synthetic 5- 40 w. In the past I thought 0- 40 weight was what was required? . Has the specification changed ? Also, can you tell me what oil filter is the best recommendation? I usually get a OEM filter from my Porsche dealer, but I have been told that a Mahle was identical.
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Blew a tire on my 02 Boxster S, and had to drive 60 miles on a 23 year old donut (spare tire). I got the new tire and tried to replace the donut, but can't find a 105x95x17 tire. Any idea where to find one?
Thursday 07/24/2025 | 2002 | Boxster S | Wheels and Tires
READ ANSWERRear view mirrors reset
Thursday 07/24/2025 | 2014 | Cayman | Electronics
The rear view mirrors have a mind of their own. The reset to an unusable angle nearly every time after starting the car. Saving the preset positions doesn't help. A recent scan shows an 084D Inner Drivers Door Handle Switch. Any connection? Any suggestions?Thanks
READ ANSWERIs 15w-50 oil a safe alternative to 10w-50 Porsche classic oil?
Wednesday 07/23/2025 | 1994 | 968 Cabriolet | Engine
READ ANSWERCrankshaft stuck after timing chain guide replacement
Wednesday 07/23/2025 | 1998 | Boxster | Engine
New to this forum - thanks in advance for any help1998 Boxster I performed the chain guide replacement procedure following Jake R processes and I thought all went well. Finished with bank 1 today and buttoned every
READ ANSWERCenter vent air flow shuts off
Tuesday 07/22/2025 | 2005 | 911 Carrera Cabriolet | Heating and Ventilation
READ ANSWERI'm looking at buying a 2024 718 S. The car has 8943 miles on it but I was told that it has had an Over Rev Report. With the DME report added, should this be a concern and would it void any future warranty claim?
Tuesday 07/22/2025 | 2024 | 718 Boxster S | Engine
The DME report show; 2211_Overspeed range 1: Number of ignitions 79 Z211_Overspeed range 1: operating hours 371.98597 h Z212_Overspeed range 2: Number of ignitions 84 2212 Overspeed range 2: operating hours 371.98603 h 7213 Overspeed range 3: Number of ignitions 76 Z213_Overspeed range 3: operating hours 371.98600 h 7214_ Overspeed range 4: N
READ ANSWERShould I be using a fuel additive?
Sunday 07/20/2025 | 2012 | Cayman R | Fuel System
I use only non ethanol fuel both my 76 911 and my 2012 Cayman. I was told that the non ethanol "clear" fuel has NO additives in it at all. Should I be using any fuel additives and if so what do you recommend?
READ ANSWERLooking to increase torque and hp via a stage 1 tune. Been looking at APR and Cobb. APR seems to provide a bit more of both. Thoughts?
Friday 07/18/2025 | 2019 | 718 Cayman S | Performance Modifications
READ ANSWERWhere do you recommend to buy a more aggressive rear diffuser for a 2019 Cayman S?
Friday 07/18/2025 | 2019 | 718 Cayman S | Body
Looking for a nice rear diffuser to replace stock rear on my 2019 Cayman S. I don't want to buy any cheap one just for looks. Definitely would like a reputable place to purchase.Thank you
READ ANSWERIs there a special Porsche tool to disconnect power steering lines? I've found the link, bought new hoses, but don't see how to disconnect the hose under the car (not the steering rack, and not at the reservoir and pump end) Thanks.
Thursday 07/17/2025 | 2009 | Cayman | Body
Need to disconnect both return line and high pressure lines. Thanks.
READ ANSWERI just watched a video on YouTube on Project Farm about an additive called MotorKote . I have a 2006 Cayenne SI just watched a video on YouTube on project farm about an additive called motor coat. I have a 2006 Cayman. I have no symptoms of bore scoring and would like to keep it that way. Are you familiar with this additive?
Thursday 07/17/2025 | 2006 | Cayman S | Engine
READ ANSWERWhich is recommended for a battery tender or 78 930?
Wednesday 07/16/2025 | 2008 | 911 Turbo | Electrical
Which battery tender do you recommend for a 1978-930
READ ANSWERRecently purchased a 2011 997.2 Carrera S. Has 66,000 miles. Needs new rotors and pads. In looking at FCP euro and Pelican Parts, I, of course see Porsche OEM set, all four rotors, at about $1300. I also see Sebro cross drilled at about $614 a set, SHW at $576 per set, Simmermann at $703 per set, and slotted Sebro set at $737 per set. I prefer slotted, in general. Does anyone have experience in any of these other name brands.
Wednesday 07/16/2025 | 2011 | 911 Carrera S | Brakes
Anyone have experience with using Sebro, SHW or Zimmerman brake rotors as replacement for original Porsche rotors. I understand that these name brands at some point supplied Porsche in the past. That doesn’t mean necessarily that these aftermarket rotors are still at those quality levels. Also. Anyone have experience with Brembro Ceramic brake pads? P65011N and P65014N ? $65 and $64 seems really cheap. Looking for good, maybe better than stock, ceramic pads. Like the lower a ...
READ ANSWER997 Drivers door does open from the inside
Wednesday 07/16/2025 | 2005 | 911 Carrera | Body
The Bowden cable and the door latch mechanism have been replaced; (Parts from Suncoast Porsche) however the driver's door only opens after repeated pulls of the inside door handle. Door will open when I let the window down and use the outside handle. Someone please respond as none of my prior questions have never been answered. Thanks.
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