GLC Class (X253) Produced 2016-2022

2020 GLC300 Break Pads and Rotor Change ???

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Old Oct 19, 2022 | 06:52 PM
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Amol Tambe's Avatar
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Mercedes-Benz GLC300
Question 2020 GLC300 Break Pads and Rotor Change ???

Hello Experts. I have 2020 GLC300, its with Mercedes for service and has check break pad warning ON. The dealership service recommended to change the break pads as well as rotors for both front and rear costing US$ 2580 plus tax.
Questions:
1. My car is 26K miles (41K Kms) is it normal to change rotors that early? when i looked at them visually i do not see any damage, the look pretty smooth.
2. should i just change breakpads and keep rotors as is?
3. Upon checking price of the parts on MB usa site break pads and rotors cost close 1200 US$ , then why dealership is charging that high? could 1600$ just the labor cost?
4. Is it okay to get it done from some other well reviewed or recognized repair shop? will it void my cars warranty?

Thanks
Amol
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Old Oct 20, 2022 | 06:14 AM
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no_mulligan's Avatar
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'12 E550, '10 ML350, '06 E350, '20 GLC300, '21 GLC300
Originally Posted by Amol Tambe
Hello Experts. I have 2020 GLC300, its with Mercedes for service and has check break pad warning ON. The dealership service recommended to change the break pads as well as rotors for both front and rear costing US$ 2580 plus tax.
Questions:
1. My car is 26K miles (41K Kms) is it normal to change rotors that early? when i looked at them visually i do not see any damage, the look pretty smooth.
2. should i just change breakpads and keep rotors as is?
3. Upon checking price of the parts on MB usa site break pads and rotors cost close 1200 US$ , then why dealership is charging that high? could 1600$ just the labor cost?
4. Is it okay to get it done from some other well reviewed or recognized repair shop? will it void my cars warranty?

Thanks
Amol
Did you have any warnings go off? How many millimeters of pad thickness did they say were left of the fronts and how many on the rear pads? Are you complaining about any stopping issues?
It's possible the front pads are worn out but highly unusual that the rears are since they don't wear at the same rate. Rotors can look smooth and be out of round. Is there any vibration or shaking when applying brakes? It's possible to change pads only but the rotor must be measured to make sure it is outside of minimum thickness and would help to know that it's not warped by measuring the total indicated runout (look for YouTube videos for explanation). Those charges aren't discounted. They look book rate. The warranty does not say it must be serviced by a dealership. Just document the work and parts used. Did they mention that you're due for a brake fluid service? Every 2 years I believe.
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Old Oct 20, 2022 | 07:40 AM
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Amol Tambe's Avatar
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Mercedes-Benz GLC300
I did not had any stopping issues or vibrations when driving the car. but dashboard started showing warning 'Check Break Pads'. they mentioned that front break and rotor is at 5/35. I am unsure is 5/35 is for breaks or rotors. I am thinking to get it done by Mida's auto service as their price is way cheaper than dealership almost $900 difference.
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Old Oct 20, 2022 | 08:25 AM
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From: Japan
Mercedes Benz AMG GLC 63s
Usually there is a disc wear mark you can check, I’d say it’s around 5mm off the top of my head but please check - visually easy to do by actually taking off your wheel and inspecting the disc. The edge of the disc there ought to be a wear mark number of sorts, other peeps correct me if I’m wrong here.

Also depending on driving parameters and not knowing yours, normal day to day driving would have you change your discs after your second set of pads were done…as in, about to change to your 3rd set then change rotors too.

If your car is still under the warranty for Service and Repair, the dealer won’t like it that you do the work yourself and may void the warranty because they can’t accept or certify either a 2nd party or DIY repairs. That may be different for the NA market so check.

Hope that helps…if not my ba

Last edited by Bloom_Phaze; Oct 25, 2022 at 02:21 AM.
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Old Oct 20, 2022 | 12:35 PM
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S4VT's Avatar
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From: US
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Originally Posted by Amol Tambe
I did not had any stopping issues or vibrations when driving the car. but dashboard started showing warning 'Check Break Pads'. they mentioned that front break and rotor is at 5/35. I am unsure is 5/35 is for breaks or rotors. I am thinking to get it done by Mida's auto service as their price is way cheaper than dealership almost $900 difference.
I think you might mean 5/32" (4 mm), which would be the thickness of the brake pad. This is in the "will require further attention" category. I changed the rear brake pads and rotors on my GLC43 at 32,000 miles, when the "check brake pads" warning appeared. The MB dealer recommended that I change the rotors. I did not need to change the front brake components at that time. The cost was $500 ($200 for labor and $300 for parts).

Brake pad life varies greatly depending on driving style. Rear brake pads may wear faster if your vehicle is equipped with the lane keep assist function, which uses the rear brakes to prevent you from drifting into another lane.

You should verify the pad thickness on all four wheels. An "OK" result is over 7/32" (5 mm). You might also check with another MB dealer.
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Old Oct 20, 2022 | 01:37 PM
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karmikan's Avatar
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GLC300 (mine) GLK250 (wife's)
Brake life of 41K kms does seem low but (as previously mentioned) a lot depends on your driving style and situation (city vs. highway etc ).
Your dealer quote is extremely high I'd walk away and look for an independent mechanic with a good reputation and solid MB experience. Brake work is not rocket science and is definitely a DIY option but some knowledge and mechanical expertise are necessary.
I would start with a check of the brake wear sensors. It's possible that the wiring has been damaged or a sensor has shorted out. Then check the wear thicknesses of the brake pads and rotors. If they need changing you don't need to go with MB. In fact I know owners who proactively switch to non-OEM brands in order to improve brake performance and/or reduce brake dust. I recently changed the pads and rotors on my wife's GLK to Brembos but there are a number of reputable brands available. A bit of research will tell you which brand/pad compound best suits your needs. Providing you use a reputable brand and keep your receipts you won't have warranty issues.
Good luck
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