Rubber backing brake pads need brake fluid?
 

I purchased some brake pads and they have rubber backing and I would like to if they need brake fulid on them. Please let me know! Thank you!


C.Verbeck

I don't understand your question, but don't put any brake fluid on the pads. You should lube the slide edges and contact points with hi temp anti-seize.

The rubber backing is to reduce noises.

Sorry.... I meant to ask was if I need to use brake fluid on the back of the rubber backing. Thanks for the input!

Like Steve, I don't think I quite understand what you're asking.

Do you mean brake quiet (aka anti-squeal compound)? It wouldn't hurt to put a little bit of stuff on the backs of the pads to keep them from squealing or vibrating. I use Permatex brand Disc Brake Quiet, which comes in a spray can and is a bright blue color. It's easier to apply than the putty-type stuff that you have to spread around, and seems to work just as well. It takes a few minutes to dry after spraying it on.

Brake fluid, however, is a completely different thing. The brake fluid that comes in a bottle or can, usually marked "DOT4" or "DOT3" is NOT meant for use on brake pads or any other external parts. It's a hydraulic fluid that runs through the brake lines to the calipers. The ONLY place you add this stuff is into the plastic reservoir on top of the brake master cylinder inside the engine bay. On most cars this reservoir is at the top of the engine compartment, underneath the windshield, immediately in front of the driver's seat. The reservoir is probably marked with a "high" and "low" level like an engine oil dipstick.

- Nathan
'83 240D "Steiner"
'00 New Beetle TDI

Thanks. What I meant to say was do I need to usse brake fluid on the back of the rubber backing pad

I recommend you have a GOOD shop do the brake job. Replacing the pads seems superficially to be one of the easiest DIY jobs you can tackle. However, there are critical judgements to be made which can leave the vehicle unsafe if not performed properly. For instance, you need to know whether or not the rotors need grinding (or replacement), and whether and how to properly clean the caliper piston before it gets retracted. You need to analyse the condition of all seals, hoses, and master cylinder, and be able to properly bleed the system.

It is a little scary to have someone ask about putting brake fluid on the pads.

Steve

NO. Don't put brake fluid on the back...sides or any other part of the pads. The substance that is used for the back of the pads is Mercedes Brake Paste, part number 001-989-10-51. One packet does a set of four pads.
Regards,
Randy D.

Thank you Randy!