Air is life. Air is everything. There is no doubt about that. You need it to breathe. But air is not good everywhere. Take your Porsche braking system for instance. Air in the system, however slight, can have devastating consequences. This does not just apply to brake parts such as rotors, the master cylinder and the pads. It applies to your general safety. That is exactly where Porsche brake bleeding comes into the picture. Think of it as something you should be doing regularly for your own safety as well as that of your loved one in the passenger seat. Read on to learn more.
Many car owners hardly think of their brakes until they fail. Many do not know or understand what brake bleeding is all about. It is simple. The process refers to the process of replacing your used and old brake fluid with clean and fresh brake fluid. It involves flushing out the old fluid out of the system as new fluid is pumped in. This creates the necessary pressure needed to bleed out used brake fluid. The process can either be done manually by having another person step on the brake pedal or it can be done using a hand pump pressure brake bleeder tool. Professional shops use the latter option, which is why you should only take your Porsche to professional repair and approved centers.
Why Its Important
Many Porsche models today use glycol based brake fluids. The fluid, which is hygroscopic, naturally absorbs moisture from the air. This is of course not a good thing especially for Porsche owners who live in humid areas. Moisture in such places find way into brake lines via microscopic pores found in seams, brake hoses, seals and joints. Unfortunately, there is no way you can avoid moisture getting into the brake system via the said parts.
With time, moisture contaminates the brake fluid. It then begins to boil at low temperatures. This should get you worried because it greatly reduces brake effectiveness of your Porsche especially if anti-lock brakes get involved. Remember that the concept behind Porsche brakes is conversion of energy from forward motion into friction. The friction is then dissipated as heat in the rotors and pads which make its way straight into the brake fluid in brake lines and hoses. For this to happen, brake fluid should be pure. It should not compress, so as to allow the pressure in the brake system to be transferred evenly and consistently.
What To Do
The process may sound like a simple Do It Yourself project. Like your mechanic will tell you though, it is somewhat complex. Keep in mind too that you have to use the right brake fluid. To that extend, consult an expert. Then by all means make sure you have the bleeding done regularly. This is particularly important if you live in humid areas as already mentioned above. It also applies if you drive for long distances regularly at a moderately high speed. Remember it more about your safety than it is about your car’s performance on the road.