Brake pad location and copper grease

raymond.harper

Senior member
I watch this chap's videos and always like to pick up a few pointers. At 10.55 he explains the bump on the back of the brake pads should correspond to the slot in the brake piston. The Z4 as far as I can see does not have this but other cars I own, R56 Mini certainly do and this explains why I had the odd "sticking" caliper. At 17 minutes he advises, according to Pagid, to avoid using copper grease as it can interfere with the brake electronics. It is worth watching https://www.youtube.com/watch?v=KvUaslff33E&t=690s
 
Brake electronics?
Apart from a plastic coated wear sensor there's nothing there to interfere with.
I always copperslip to prevent the squeal. Only needs a tiny dab in the centre of the inner pad and in line with tge retaining arms on the outer pad.
 
https://bizol.com/blog/copper-grease-tried-and-tested-or-outdated-and-obsolete/ "The main reason for copper grease falling out of favour, however, is because it can affect the vehicle’s ABS, ESP and EPB systems. Braking systems or driver assistance systems are highly sophisticated these days and with every year that passes, more electronics are being used in vehicle braking systems. Electronic braking systems utilise extremely low voltage signals generated in the sensors. The low-voltage signals are easily disrupted and this is why using copper grease is a problem. Copper is conductive and its presence in and around the braking system can interfere with the Hall-effect sensors used in the system electronics."
 
Yup BMW in TIS states no use of copper based greases for that reason…I use a silicone based grease now..just in case.. :thumbsup:
 
enuff_zed said:
You have to be seriously cack handed to get grease anywhere near the abs sensors :rofl:

Or the EFB…not so far.. :tumbleweed:

As you know in aviation, if it can go wrong then someone, sometime, somewhere will make it so..
 
B21 said:
enuff_zed said:
You have to be seriously cack handed to get grease anywhere near the abs sensors :rofl:

Or the EFB…not so far.. :tumbleweed:

As you know in aviation, if it can go wrong then someone, sometime, somewhere will make it so..
EFB? E85?
 
enuff_zed said:
B21 said:
enuff_zed said:
You have to be seriously cack handed to get grease anywhere near the abs sensors :rofl:

Or the EFB…not so far.. :tumbleweed:

As you know in aviation, if it can go wrong then someone, sometime, somewhere will make it so..
EFB? E85?

E89 of course but if Textar and others say no then…

https://bizol.com/blog/copper-grease-tried-and-tested-or-outdated-and-obsolete/

I do have two tubes and one large tin of copper grease free for anyone who wants to collect it.. :thumbsup:
 
I shall carry on using it on ye olde E85s.
Fairly sure I won't miss the target by that much. :rofl:
 
enuff_zed said:
I shall carry on using it on ye olde E85s.
Fairly sure I won't miss the target by that much. :rofl:

Not trying to get into a flame war / score points etc etc..I think when these points are being discussed especially when newbies / people with less experience (for whatever reason) are involved is to differentiate between accepted good/best practice and a personal view..
 
B21 said:
enuff_zed said:
I shall carry on using it on ye olde E85s.
Fairly sure I won't miss the target by that much. :rofl:

Not trying to get into a flame war / score points etc etc..I think when these points are being discussed especially when newbies / people with less experience (for whatever reason) are involved is to differentiate between accepted good/best practice and a personal view..
Tbf, I read the article you linked too and it does talk about more modern vehicles.
My personal belief is that the E85 range is old enough to not be adversely affected. However, in the interests of education to less experienced members I would just like to add................

THIS IS MY PERSONAL VIEW ONLY.

DON'T DO IT!!!!!!!!!!!!!!!!!!! :D
 
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