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The C4’s use a different ABS Booster Pump than the C2’s. The P/N is P/N 993 355 953 01 (also 964 355 901 01 or 964 355 953 01) It looks like this
.
[img]file:///C:/Users/PERRET~1/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png[/img]
This part is NOT available ANYWHERE in the world. Porsche dealers in US, Canada and Europe have been out of stock for a long time and there is NO date for when a replacement will be available.
I have checked all the Recyclers in the US, they are also looking for this part.
If this pump fails you CANNOT drive the car, it takes too much foot pressure to stop the car.
If you own a C4 this will eventually affect you!
Please help me by emailing Porsche USA and ask them for a resolution. Their email address is customer.commitment@porsche.us
Please also join me and contact Porsche Club of America (PCA.org) and ask them for their help in pressuring Porsche to get us a replacement.
The replacement part will be EXPENSIVE (rumored to be $4,000), but better than a broken car
Sounds like a rebuild is your best option. From the photo it looks like it can be stripped apart; perhaps contact a few really good refurbishment shops? you might get lucky and the seals and wear parts are generic metric parts that you could source from mcmaster or equivalent.
The C4’s use a different ABS Booster Pump than the C2’s. The P/N is P/N 993 355 953 01 (also 964 355 901 01 or 964 355 953 01) It looks like this
.
[img]file:///C:/Users/PERRET~1/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png[/img]
This part is NOT available ANYWHERE in the world. Porsche dealers in US, Canada and Europe have been out of stock for a long time and there is NO date for when a replacement will be available.
I have checked all the Recyclers in the US, they are also looking for this part.
If this pump fails you CANNOT drive the car, it takes too much foot pressure to stop the car.
If you own a C4 this will eventually affect you!
Please help me by emailing Porsche USA and ask them for a resolution. Their email address is customer.commitment@porsche.us
Please also join me and contact Porsche Club of America (PCA.org) and ask them for their help in pressuring Porsche to get us a replacement.
The replacement part will be EXPENSIVE (rumored to be $4,000), but better than a broken car
Failing that,, take it to a Diesel engine pump rebuild service and let them have a look..
Its likely more about understanding a tight clearance pump in the rebuild process.
Injection pumps off a diesel run at sub .0001 tolerances.
06-26-2019, 06:25 PM
Need Help! 964/996 ABS Pump not available-
