What brake pad U choose for your car? Cheap? Good? Genuine ?

[kobayashiGT]

On 7/3/2024 at 11:24 PM, Gnahp said:

wanted to ask you guys for opinion

this is the brake wear sensor

it has two wires, a two-prong connector

this is how it worn on my previous W204, triggered the brake wear message

do you guys think:-

1. the two wire is a loop, the wear breaks the wire, causing open circuit, triggering the brake wear message

2. the two wire both connected to +12V, the wear grind away the plastic insulation on the tip, allowing the probe to touch the brake rotor (GND/ground) to form a close circuit, triggering the brake wear message

looking at the way it worn on my old W204, I am more incline to No.2

 

option 2 the reading will be more realistic right? If can touch the sensor, means the brake really botak liao. 

[Gnahp]

I wanted to follow the book by using mercedes pad grease

went to 3 merc stockists, all shake head wave hands

[Gnahp]

I made some measurements with digital caliper for those who might be interested

total friction material thickness = 11mm (100%)

thickness where brake wear message triggered = 3mm (27%)

for my driving pattern, it took 101,000km to wear 8mm (11-3)

meaning I can still drive for another 38,000km before metal grind metal 😁

plenty of buffer I would say, if I see brake pad wear warning message during a road trip less than 38,000km from home, still can make it back before it botak

 

[Gnahp]

measuring the rear brake disk thickness 

new = 22.0mm

minimum thickness = 19.4mm

current thickness at 102,000km = 21.0mm

will hit minimum thickness at 265,000km, most likely change car already 😁

if your brake disk has these dimples (they are not through holes) on the surface, they are disk thickness indicators

when they disappeared, meaning your brake disk is at the minimum thickness, time to change

 

[Gnahp]

before start work, got to retract the electronic parking brake through the menu

can hear the sound of both electronic parking brake motors winding back

 

[Gnahp]

taking things apart

 

[Gnahp]

spent a long time cleaning those recessed areas where the pad sits

apply grease, sparingly

 

[Gnahp]

new pads in

push the caliper piston back

clean the old grease on the sliding pins and apply fresh grease

clean the mating surfaces where the wheel meets the brake rotor

put everything back, torque them up with torque wrench, reset the electronic parking brake back to normal position, apply brake until getting a firm pedal, gao tim

[Gnahp]

On 7/3/2024 at 11:24 PM, Gnahp said:

wanted to ask you guys for opinion

this is the brake wear sensor

it has two wires, a two-prong connector

this is how it worn on my previous W204, triggered the brake wear message

do you guys think:-

1. the two wire is a loop, the wear breaks the wire, causing open circuit, triggering the brake wear message

2. the two wire both connected to +12V, the wear grind away the plastic insulation on the tip, allowing the probe to touch the brake rotor (GND/ground) to form a close circuit, triggering the brake wear message

looking at the way it worn on my old W204, I am more incline to No.2

 

to answer my own question

after checking with multimeter, it's No. 1

 

[Beregond]

On 7/6/2024 at 5:09 AM, Gnahp said:

taking things apart

 

I am guessing this is the front?

[Mkl22]

On 7/5/2024 at 4:02 PM, Gnahp said:

I wanted to follow the book by using mercedes pad grease

went to 3 merc stockists, all shake head wave hands

Order via min hoe? 
the rest of the useless stockist will reject. 

[Mkl22]

On 7/6/2024 at 5:27 AM, Gnahp said:

to answer my own question

after checking with multimeter, it's No. 1

 

Funnily that Japanese makes and majority of car have no brake wear sensor. Except Ang mo chia…. I wonder why they bother. 

[Gnahp]

On 7/6/2024 at 7:34 AM, Beregond said:

I am guessing this is the front?

this is the rear brake

front brake pads also very near to the limit, the car will give message anytime 

[Gnahp]

On 7/6/2024 at 7:55 AM, Mkl22 said:

Order via min hoe? 
the rest of the useless stockist will reject. 

I will use other generic pad grease that I have at home, I am not that OCD lah 😁

[Gnahp]

On 7/6/2024 at 7:57 AM, Mkl22 said:

Funnily that Japanese makes and majority of car have no brake wear sensor. Except Ang mo chia…. I wonder why they bother. 

the rest of the cars have this, KISS (keep it simple stupid), I like

even my wife also won't ignore it and will tell me about it

the warning message on screen type, she will just press OK and ignore

[Mkl22]

2-3mm is about the limit. Go any less and the pad material might drop off from the metal backing. 
if you see the construction of the brake pad you know what I mean. 

[Gnahp]

On 7/6/2024 at 4:13 PM, Mkl22 said:

2-3mm is about the limit. Go any less and the pad material might drop off from the metal backing. 
if you see the construction of the brake pad you know what I mean. 

you are right 👍

especially when the pads have tapered wear

[Beregond]

On 7/6/2024 at 12:45 PM, Gnahp said:

this is the rear brake

front brake pads also very near to the limit, the car will give message anytime 

the rear brake, how u open the brake caplier??👍