l own a 1979 Porsche 928, and one of the dash lights is continually on. The light reads ''bremskreis.'' l have translated this word using Babel Fish, and l know that the word translates literally to ''brake circuit.'' l have a lot of automotive knowledge, but l can not figure out what ''brake circuit'' equates to in English terminology. Can someone out there help?

A brake circuit is the Name of the whole System around the brake pipes (e.g. http://en.wikipedia.org/wiki/Master_cylinder). You should fix that or your brake will be broken. (A light is not on without meaning)

Check ur brake fluid level & the sensors that indicate fluid level. Also, check that the wires going to the brake fluid pressure valve r not corroded. You must change the brake fluid in ur car every 2-3 years, otherwise, the brake seals will begin to de-compose costing a lot in master cylinder, calipers, etc. Use only Castrol (vegetable fluid base) or Porsche blue racing fluid. Also, keep ur engine bay showroom clean with an underhood washing. Your engine will love u for it. Keep all road debris (especially road salt which causes damage eventually) rinsed off. Be midfull of the space between the radiator & the A/C condenser. Over time, bugs & leaves collect here restricting air flow to radiator surfaces. Good Luck!!

Porsche is are not car is that you can do a lot of work on yourself, just take it to someone who specializes in that, so it can be done right.