BenzWorld Senior Member
Date registered: Mar 2015
Vehicle: 2006 S500 4matic, 2005 S500
Location: Salt Lake City, UT
Mentioned: 5 Post(s)
Quoted: 75 Post(s)
Here is a before and after brake pipe replacement on my Wife's former Oldsmobile Bravada. German auto manufacturers started using copper/nickel blend three decades ago. GM, to this day use the cheapest steel pipe, even though their core customer lives in regions that use salt on the road.
A huge advantage to the copper nickel is that it can be easily bent, unlike steel. I have no idea why the auto parts stores sell copper nickel brake pipe, yet hide it deep in the back of the store behind the counter. Buy the size you need with pre-fitted ends. You can go longer, but can't go shorter.
Being a loyal GM owner for decades, the cheap brake pipe they used, causing my Wife's brake pipe to fail at 60k miles, was the reason I switched to German cars.
In the pictures attached, I ended up replacing all the brake pipes. The one in the picture was not so bad, but others much, much worse. While I was in there, decided to replace them all. The rear end was simply a convenient place to take a before and after picture.
Last edited by MikeKerr; 04-14-2019 at 03:40 AM.