Brake Pad Wear
Thread Starter
Senior Member
Joined: Feb 2014
Posts: 343
Likes: 71
From: NJ
E300-4matic
Brake Pad Wear
What is the average life span for the front brake pads
on an E-300-4matic on a 2019 E class. I have been told about 25,000 miles but I have a pretty light foot and think my pads might last 30k to 35k miles.
Appreciate any replies. Thanks.
on an E-300-4matic on a 2019 E class. I have been told about 25,000 miles but I have a pretty light foot and think my pads might last 30k to 35k miles.
Appreciate any replies. Thanks.
MBWorld Fanatic!
Joined: May 2018
Posts: 3,048
Likes: 905
From: Long Island, NY
2019 E 450, 2016 E350 4matic (retired), 2018 Ford Edge Sport, 2008 Porsche Boxster
- 40% interstate
- 50% suburban: I live on Long Island
- 10% stop and go
However, at 40,000 miles I had to replace the rear pads and rotors which were heavily scored: My Indy shop, and Mercedes SA advisor confirms, this is because the rear brakes are electronic and do not always release after you are parked. Now after parking and before engaging the transmission, I release the brake lever.
Hope this helps
Thread Starter
Senior Member
Joined: Feb 2014
Posts: 343
Likes: 71
From: NJ
E300-4matic
I am at 48,000 miles and still on original pads: Rotors are smooth
However, at 40,000 miles I had to replace the rear pads and rotors which were heavily scored: My Indy shop, and Mercedes SA advisor confirms, this is because the rear brakes are electronic and do not always release after you are parked. Now after parking and before engaging the transmission, I release the brake lever.
Thank you for your input
Hope this helps
- 40% interstate
- 50% suburban: I live on Long Island
- 10% stop and go
However, at 40,000 miles I had to replace the rear pads and rotors which were heavily scored: My Indy shop, and Mercedes SA advisor confirms, this is because the rear brakes are electronic and do not always release after you are parked. Now after parking and before engaging the transmission, I release the brake lever.
Thank you for your input
Hope this helps
Thread Starter
Senior Member
Joined: Feb 2014
Posts: 343
Likes: 71
From: NJ
E300-4matic
Member
Joined: Feb 2021
Posts: 120
Likes: 38
From: Australia
W213 e300 MY19 (Aus market)
I went ahead and had all rotors and pads replaced, as my rear rotors were also thin from the EBD and adaptive cruise control braking. Subjectively, I can now feel that the braking is confident and smooth at all times. Even my wife notices it. The thought occurred to both of us, that by spending the money early at 31k miles to have all brakes done, the car braking performs optimally the way its been designed.
If I was looking to economise, I could push the interval out a bit longer, or go against MB specification and just replace the pads while keeping the rotors on. However, I don't want to take liability over something safety critical like brakes given my mechanic has advised me about them, and since the car is still under warranty and needs to be maintained as per MB spec.
Forum member @Bfgslkman has done a few videos on replacing his brakes (at much higher mileages than mine) and a lesson I took from his video about his wheel bearing failure is that good quality brakes can also be insurance against premature/irregular wear on the wheel bearings.
Last edited by aks_19_ak; Nov 27, 2024 at 07:01 AM.
MBWorld Fanatic!
Joined: May 2018
Posts: 3,048
Likes: 905
From: Long Island, NY
2019 E 450, 2016 E350 4matic (retired), 2018 Ford Edge Sport, 2008 Porsche Boxster
Contra point:
You do know that there are wear indicators on the brake pads. As you have a light foot and 'limousine stop' I cannot imagine why you would changing perfectly good brake pads.
Unless you have shudder indicating the tires are not balanced I cannot think of any reason to do this. The only time I have my wheels balanced is when either I have a flat and/or tires replaced. I have 48,000 miles on my car and I have not had or needed an alignment. If your car tracks true and the tire wear is even, then there is no reason to do an alignment.
Did your Indy shop measure the thickness to determine that the rotors were thin or did he do a visual? Again, like balancing, alignment and replacing rotors, this seems totally unnecessary.
FYI, tires, brakes including rotors are "wear and tear" items, that are not included under the Mercedes warranty. If your Indy told you that balancing tires, alignments and replacement of pads and rotors is necessary to maintain your warranty, he is not correct.
It seems to me that you have done a great deal of unnecessary work and have incurred unnecessary expenses.
Just my $.02:
At my last service (B service @31k miles/50,000 km) my indy mechanic notified me that one of the front brake pads (I think it was driver side - not sure if its the inner or outer) had worn through and needed replacing. I also have a light foot and will 'limousine stop' the car as much as I can. So it's possible depending on driving conditions that one pad may wear faster than the other 3.
You do know that there are wear indicators on the brake pads. As you have a light foot and 'limousine stop' I cannot imagine why you would changing perfectly good brake pads.
Unless you have shudder indicating the tires are not balanced I cannot think of any reason to do this. The only time I have my wheels balanced is when either I have a flat and/or tires replaced. I have 48,000 miles on my car and I have not had or needed an alignment. If your car tracks true and the tire wear is even, then there is no reason to do an alignment.
Did your Indy shop measure the thickness to determine that the rotors were thin or did he do a visual? Again, like balancing, alignment and replacing rotors, this seems totally unnecessary.
It seems to me that you have done a great deal of unnecessary work and have incurred unnecessary expenses.
Just my $.02:
Last edited by JTK44; Nov 27, 2024 at 08:23 AM.
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MBWorld Fanatic!
Joined: May 2018
Posts: 3,048
Likes: 905
From: Long Island, NY
2019 E 450, 2016 E350 4matic (retired), 2018 Ford Edge Sport, 2008 Porsche Boxster
When you do replace the pads, you should also replace the wear indicator. It is a "once and done" part.
see:
Last edited by JTK44; Nov 27, 2024 at 09:24 AM.
