DIY-2020 GLC 300-"Check Brake Pads" message
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2020 GLC 300 4Matic OffRoad
DIY-2020 GLC 300-"Check Brake Pads" message
My GLC shows a "Check Brake Pads" message with a big red exclamation point on the dash. It isn't very pleasant when the car is just 3 years old with barely 38000km.
I am now getting ready for the DIY rear brake pads replacement job. And will summarize it in this thread.
Can anyone share the workshop document? e.g:
- torque specs
- tool size
- steps
I replaced my previous cars' brake pads and rotors but this will be the first time for Germany or Mercedes. Any suggestion is welcome.
======
Getting ready for rear brake pads replacement. Updated Apr 11, 2023
Parts:
- Brake Pads Rear(000-420-78-03), Quantity: 1, Price: e.g about CND$150
- Wear indicator(169-150-1617), Quantity: 1, Price: e.g about CND$20
Tools:
- 7mm Hex Bit Socket 3/8-in drive for the guide pin.
- 3/8-in drive extension bar 3 inch
Torque Specs:
- BA42.10-P-1003-12V Guide pin to brake caliper support or bolt for guide pin to brake caliper. Nm: 25Nm (18.4 ft-lbs)
Replaced rear brake pads at 42000+km, still have 1mm of meat.
Youtube:
I am now getting ready for the DIY rear brake pads replacement job. And will summarize it in this thread.
Can anyone share the workshop document? e.g:
- torque specs
- tool size
- steps
I replaced my previous cars' brake pads and rotors but this will be the first time for Germany or Mercedes. Any suggestion is welcome.
======
Getting ready for rear brake pads replacement. Updated Apr 11, 2023
Parts:
- Brake Pads Rear(000-420-78-03), Quantity: 1, Price: e.g about CND$150
- Wear indicator(169-150-1617), Quantity: 1, Price: e.g about CND$20
Tools:
- 7mm Hex Bit Socket 3/8-in drive for the guide pin.
- 3/8-in drive extension bar 3 inch
Torque Specs:
- BA42.10-P-1003-12V Guide pin to brake caliper support or bolt for guide pin to brake caliper. Nm: 25Nm (18.4 ft-lbs)
Replaced rear brake pads at 42000+km, still have 1mm of meat.
Youtube:
Last edited by abacnus; Dec 26, 2023 at 01:06 AM.
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Joined: Apr 2016
Posts: 1,124
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From: NW
2018 GLC 4MATIC
My GLC shows a "Check Brake Pads" message with a big red exclamation point on the dash. It isn't very pleasant when the car is just 3 years old with barely 38000km.
I am now getting ready for the DIY rear brake pads replacement job. And will summarize it in this thread.
Can anyone share the workshop document? e.g:
- torque specs
- tool size
- steps
I replaced my previous cars' brake pads and rotors but this will be the first time for Germany or Mercedes. Any suggestion is welcome.
I am now getting ready for the DIY rear brake pads replacement job. And will summarize it in this thread.
Can anyone share the workshop document? e.g:
- torque specs
- tool size
- steps
I replaced my previous cars' brake pads and rotors but this will be the first time for Germany or Mercedes. Any suggestion is welcome.
Last edited by DanD.; Jan 11, 2023 at 08:11 PM.
Junior Member
Joined: Aug 2020
Posts: 61
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GLC 2020 Coupe
Same issue
Hello, im having the same message on my dash but no red sign so far. When I press the x button on the message it just disappear. I'm suspecting it's telling me the brake pads are nearing time to change. It's frustrating that a 3 years old car shows the sign for change brake, my GMC terrain went on for 10 years with no sign of wear. But that's the ****ty current German specs, not as it used to be. I'll wait for next 45k maintenance and ask them to change. Luckily I got an offer from them last year to get 2 maintenance for free plus change breakpads, as a compensation for hitting my car while in last maintenance. Good luck with your DIY
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me: 2015 SL400 & 2015 ML400; wife: 2022 GLC Coupe; daughter: 2017 GLC SUV
Hello, im having the same message on my dash but no red sign so far. When I press the x button on the message it just disappear. I'm suspecting it's telling me the brake pads are nearing time to change. It's frustrating that a 3 years old car shows the sign for change brake, my GMC terrain went on for 10 years with no sign of wear.....
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2018 GLC 4MATIC
Originally Posted by eddieo45
am I the only one that 30-35000 miles on a set of brake pads is nothing to complain about??
rears 6mm. Car has 34.5K miles.
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me: 2015 SL400 & 2015 ML400; wife: 2022 GLC Coupe; daughter: 2017 GLC SUV
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2018 GLC 4MATIC
Originally Posted by eddieo45
I'm not saying it can't be done; I've put about 30K on my SL since new pads in 2019 and they're still like new, but if needed pads sooner I'd be more inclined to look at my driving style than to blame the pads.
Also, i believe i read somewhere, using hold option helps wear pads quicker.
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I just had the rear pad replaced last November at 293xx km.
Last edited by dadalook; Jan 15, 2023 at 03:55 PM.
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From: Arizona
2020 GLC300 touring version (but I miss my '93 300SE W140 tank)
Also, i believe i read somewhere, using hold option helps wear pads quicker.[/QUOTE]
Curious: I use HOLD very often. How would it increase pad wear vs keeping foot on brake pedal?
Curious: I use HOLD very often. How would it increase pad wear vs keeping foot on brake pedal?
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'21 AMG53 wDPP & ARC, 19 GLC300 - Former-03 C240,2 ML BlueTecs,20 GLE450 E-ABC,15 Cayenne D,17 Macan
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2018 GLC 4MATIC
Originally Posted by mikapen
Curious: I use HOLD very often. How would it increase pad wear vs keeping foot on brake pedal?
As I understand when its on hold, and you press gas pedal it release the brake but brakes has more pressure vs when you take your food off the brake before pressing gas. Its minimum but in a ling run it can make some difference.
This how I understand. Im not a mechanic.
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'21 AMG53 wDPP & ARC, 19 GLC300 - Former-03 C240,2 ML BlueTecs,20 GLE450 E-ABC,15 Cayenne D,17 Macan
Think of a sanding block - it removes material when it's moving.
But if it's just sitting there, like a parking brake pad on a motionless disc, nothing happens. No matter how much force you apply.
Tires, too.
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2018 GLC 4MATIC
Originally Posted by mikapen
If there's no movement, nothing will wear.
Think of a sanding block - it removes material when it's moving.
But if it's just sitting there, like a parking brake pad on a motionless disc, nothing happens. No matter how much force you apply.
Tires, too.
Think of a sanding block - it removes material when it's moving.
But if it's just sitting there, like a parking brake pad on a motionless disc, nothing happens. No matter how much force you apply.
Tires, too.
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2021 GLC 300 4Matic
It'd be interesting if someone could do a scientific study about this. My assumption would be that we're talking at the micro level and the difference would be negligible at best.
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Mercedes GLC 300
My GLC shows a "Check Brake Pads" message with a big red exclamation point on the dash. It isn't very pleasant when the car is just 3 years old with barely 38000km.
I am now getting ready for the DIY rear brake pads replacement job. And will summarize it in this thread.
Can anyone share the workshop document? e.g:
- torque specs
- tool size
- steps
I replaced my previous cars' brake pads and rotors but this will be the first time for Germany or Mercedes. Any suggestion is welcome.
I am now getting ready for the DIY rear brake pads replacement job. And will summarize it in this thread.
Can anyone share the workshop document? e.g:
- torque specs
- tool size
- steps
I replaced my previous cars' brake pads and rotors but this will be the first time for Germany or Mercedes. Any suggestion is welcome.
I just replaced rear brake pads on my Mercedes GLC 300 2020. I made a video of steps. Hopefully this helps!
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2017 GLC 300 4matic, 2021 BMW R1200GS
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2020 GLC 300 4Matic OffRoad
Can anyone confirm the socket bit tool to unscrew the guide pin for the rear brake pad replacement?
I have been seeing people use T45 Torx or 7mm hex. The diameter of these two is similar. So the chance is that either one could work. But I would like to know which one is the exact fit.
As for torque spec, I think I can confirm that by the document in this thread: "BA42.10-P-1003-12V Guide pin to brake caliper support or bolt for guide pin to brake caliperNm: 25Nm"
That is about 18.4 ft-lbs. It is a low-torque bolt, which makes sense.
I have been seeing people use T45 Torx or 7mm hex. The diameter of these two is similar. So the chance is that either one could work. But I would like to know which one is the exact fit.
As for torque spec, I think I can confirm that by the document in this thread: "BA42.10-P-1003-12V Guide pin to brake caliper support or bolt for guide pin to brake caliperNm: 25Nm"
That is about 18.4 ft-lbs. It is a low-torque bolt, which makes sense.
Last edited by abacnus; Apr 5, 2023 at 05:20 PM. Reason: more specific
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2018 GLC 4MATIC
Originally Posted by abacnus
Done the rear brake pads replacement at 43000km. Still have 2mm beef.
pretty easy job comparing to Japanese actually.
pretty easy job comparing to Japanese actually.
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From: America's Mitten
on GLC300 #2, a 2022 CPO purchased b/c I really dislike the X254's UI (GL350 before those)
Thanks to OP, the newer member with his video above, and all others who contributed here. I'm just about to undertake this rear pad job at 33,000 miles. Rear brakes on many cars seem to be undersized these days, plus the MB ADAS in particular uses rear brakes for several functions like speed regulation and lane departure correction (so aggressive, I usually keep that one off).
Don't pay dealer retail for OE parts. Sites like suburbanautoparts.com and others offer discounts on OE parts, particularly great if you're close enough to one such seller to make a local pick up and avoid shipping costs.
As an example, in that great video above (missing only safety stands, always use those to support your lifted car and not the floor jack!) the dealer's detailed quote shows the rear pads 000-420-87-03 as billed for $117, but the actual part MSRP is just $95 and it's sold elsewhere online for around $70ish. The dealer's service department jacked up the retail list parts prices!
Finally, lessees are required by terms of the MB Finance lease agreement to use only MB OE parts. YMMV, but my Detroit Three high performance division brakes system engineer friend says: don't reengineer your car, the OEs test and refine specs for certain parts like brake pads, stick with OE/OEM replacement on the pads, but rotors can go aftermarket if price matters. On the other hand, my MB boxed 000 420 87 03 purchased at discount contains ATE Ferodo branded pads (with an MB part code), so one could make an informed choice knowing who makes the pads for MB...
Don't pay dealer retail for OE parts. Sites like suburbanautoparts.com and others offer discounts on OE parts, particularly great if you're close enough to one such seller to make a local pick up and avoid shipping costs.
As an example, in that great video above (missing only safety stands, always use those to support your lifted car and not the floor jack!) the dealer's detailed quote shows the rear pads 000-420-87-03 as billed for $117, but the actual part MSRP is just $95 and it's sold elsewhere online for around $70ish. The dealer's service department jacked up the retail list parts prices!
Finally, lessees are required by terms of the MB Finance lease agreement to use only MB OE parts. YMMV, but my Detroit Three high performance division brakes system engineer friend says: don't reengineer your car, the OEs test and refine specs for certain parts like brake pads, stick with OE/OEM replacement on the pads, but rotors can go aftermarket if price matters. On the other hand, my MB boxed 000 420 87 03 purchased at discount contains ATE Ferodo branded pads (with an MB part code), so one could make an informed choice knowing who makes the pads for MB...
Last edited by mustbebenz; May 23, 2023 at 11:10 AM.
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'21 AMG53 wDPP & ARC, 19 GLC300 - Former-03 C240,2 ML BlueTecs,20 GLE450 E-ABC,15 Cayenne D,17 Macan
A small caution here. "OE" and "OEM" may be different parts.
An Original Equipment Manufacturer might make other, lower quality parts, not necessarily to Original Equipment specs.
This is especially true with windshields, for example.
An Original Equipment Manufacturer might make other, lower quality parts, not necessarily to Original Equipment specs.
This is especially true with windshields, for example.
