355 Brake Fluid Leak

I recently discovered a leak near the front right side of the vehicle, LHD ‘98 F355 manual transmission. I originally thought it might be a leak from the steering rack boot, although it was not power steering fluid, but a light weight brown colored oil. It turned out to be power steering fluid mixed with dirt from traveling from the booster area.

After inspection, I haven’t had any “Oh, that’s where the leak is coming from” moments. Both the clutch and brake master cylinders are dry and all lines are dry. The reservoir level is between min and max, down from where it was after the last fluid flush in June of last year.

The leak is possibly coming from the back side of the booster, although hard to tell, but a small amount of fluid has been discovered in the cabin around the box inspection plate.

Advice would be much appreciated.

 

Yes, initially I removed the front undertray for inspection when the leak was first noticed. The power steering fluid is Dex/Merc, red and full. At first I thought it might be coming from the right steering rack boot, as my mechanic informed me that the manufacturer had a light oil in the boot. Although last weekend I removed the top trunk carpet and found the leak traveling all along the upper "shelf" under the air conditioning coil fan box from the brake area, down the wall near the rear side of the steering rack boot, then on to the floor.

It appears it could be from the rear of the booster, although I'm wondering what that might indicate. Master cylinder seal connecting to the booster?, hole in the booster diaphragm too? There are no signs of fluid around the reservoir or the lines. Ugg... Just hoping for some thoughts from experience with a leak such as this.
Reading my initial post, I misspoke when I wrote It turned out to be power steering fluid mixed with dirt, meant to say It turned out to be brake fluid mixed with dirt. I'm dumb as the day is long......

 

An update on this and for those searching threads in the future; further inspection revealed that the fluid leak, although it is brake fluid, was a leak from the rear of the clutch master cylinder inside the cabin located in the pedal box, as it shares the same fluid that the brake system uses.

Although there was some saturation on and all along the upper shelf inside the trunk, below the windshield, (which led to my confusion) the bulk of the fluid was making its way to the outside of the vehicle through a channel on the inside of the firewall, then out near the right power steering boot.

Genuine Ferrari Part, CLUTCH CONTROL PUMP (175211) $172.72, purchased from Eurospares, diagram courtesy of Maranello Classic Parts.


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Repaired the leak today, replaced the Clutch Master Cylinder, (aka Clutch Control Pump). Eurospares, 175211 Brembo, $172.72.

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