The brakes have a loud piercing screech when brakes are applied. It started out as an occasional noise and now it is constant. I have contacted mb customer service as well as the dealership where I purchased my vehicle. All admit that mb is aware of the issue but have no fix or solution. It is well documented with several complaints on all of mb social media sites. I am being told this is not…
2016 Mercedes-Benz GLC-Class brakes problems
severe Owners of the 2016 Mercedes-Benz GLC-Class have filed 26 NHTSA complaints about the brakes, typically surfacing around 6,000 miles at roughly $450 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See brakes across all vehicles →
Failure mileage
Complaints
26
Recalls
0
Avg fix
$450
| Model year | brakes complaints |
|---|---|
| 2016 GLC-Class (this page) | 26 |
| 2017 GLC-Class | 4 |
| 2018 GLC-Class | 5 |
1crash
1injury
When does it fail?
Of the 26 brakes complaints filed for the 2016 Mercedes-Benz GLC-Class, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Of the 4 model years of Mercedes-Benz GLC-Class we track for brakes problems, this one carries the most owner complaints on file — 26.
Owners have filed 26 brakes complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
The failure pattern owners describe
Owners consistently report loud squealing or screeching from the brakes, most often when backing up, starting between 400 and 10,000 miles after purchase. The noise is described as piercing, painful, and embarrassing—so loud some owners reflexively ease off the brakes out of discomfort. The problem worsens over time and occurs in forward driving too, particularly in cold weather or when brake pads are cool.
Dealers acknowledge Mercedes knew about the defect but lacked an authorized fix. Repairs—brake pad replacement, rotor replacement, or rotor compound application—provide only temporary relief, if any. One owner reported receiving two consecutive defective brake pad sets from the manufacturer. Multiple pad and rotor replacements over months or years have failed to resolve the issue for some owners. One owner experienced actual brake malfunction with unintended acceleration at 5 mph, resulting in a crash; the dealer couldn't reproduce it and the manufacturer never returned their call. Another owner reports spongy brake feel and slow stopping, with the dealer citing months-long parts shortages. Customers were denied written confirmation of complaints and told the issue wasn't a safety concern, though no written safety statement was provided.
Failure modes owners describe
Brake squeal/screech in reverse and forward driving
Loud squealing, screeching, or piercing noise from brakes, most often when backing up or during light brake application. Noise starts early in vehicle life and progressively worsens. Owners report the sound is painful and embarrassing. One owner noted the noise occurs when pads are cold, particularly in cold weather. Noise persists across multiple repair attempts.
When: Typically starts between 400 and 10,000 miles; owners report onset from a few weeks to several months after purchase. Most common in early morning or cold conditions.
Symptoms owners cite: Loud squealing noise when braking in reverse; Screeching sound when applying brakes lightly (feathering); Noise occurring during forward braking at low speeds; Pain-level volume described as piercing and painful to ears; Worse in cold weather and when brakes are cool; Intermittent initially, becoming constant over time
Repairs/costs cited: Dealers replaced brake pads multiple times (some owners report 3+ pad replacements), replaced rotors (also multiple times in some cases), applied compounds to rotors, and replaced brake spring shoes. Repairs provide only temporary relief or no relief at all. One owner paid for rotor diagnosis after reading Mercedes forums. One owner paid $260 for dealer diagnosis.
Recalls/TSBs owners mention: Mercedes acknowledged the issue is known internally; customers and dealers were told engineers were working on a fix and to await guidance. Some owners report Mercedes refused written confirmation of complaints. One customer service rep stated it was 'not a safety issue' but would not provide this in writing. Dealers cited parts shortage from Germany. Mercedes offered 15% discount on repairs in at least one case rather than covering repair costs. No recall issued.
Brake malfunction with unintended acceleration
One owner reported brakes malfunctioned at low speed; depressing brake pedal resulted in vehicle surging forward independently, causing a crash into a barn. Owner sustained severe whiplash and wrist pain. Airbags did not deploy.
When: At approximately 6,000 miles
Symptoms owners cite: Brake pedal depression resulted in forward surge instead of deceleration; Vehicle accelerated independently at 5 mph; No warning before malfunction
Repairs/costs cited: Dealer towed vehicle but could not duplicate failure.
Recalls/TSBs owners mention: Manufacturer was made aware by voicemail but never called back.
Abnormal brake noise without successful repair
Abnormal sounds from front and rear brakes that recur despite multiple repair attempts. One owner received defective replacement brake pads twice (manufacturer accidentally packaged defective brakes in both shipments). Another owner had brake spring shoe replaced after brake pads failed to resolve the issue; problem recurred.
When: Starting between 400 and 6,500 miles
Symptoms owners cite: Abnormal noise from front and rear brakes; Noise recurrence after repair; Defective brake pads supplied as replacements
Repairs/costs cited: Brake pad replacement performed (repeated in some cases); brake spring shoe replacement performed; however failures recurred. One customer reported six-month delay waiting for correct replacement brakes from manufacturer.
Recalls/TSBs owners mention: None documented for recurring failures.
Spongy brakes with delayed stopping
Brake pedal feels spongy and brakes do not seem to stop as quickly as expected. Dealer indicated replacement parts unavailable for months.
When: Timing not specified in narrative
Symptoms owners cite: Spongy brake pedal feel; Delayed braking response; Reduced confidence in brake system
Repairs/costs cited: Dealer stated replacement parts would not be available for months.
Synthesized from 26 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 7 most recent
Screeching brakes when car is put in reverse. Typically occurs in cold weather. Mercedes said they are aware of the issue but no fix is available. Mercedes says occurs when vehicle has approximately 20k miles on them.
Brakes and brake rotors screech excessively when moving from park, forward or backwards and while braking at stop lights and stop signs. Reported to dealer and Mercedes - no action. Concerned that brakes may fail at a critical time or that rotors will be damaged beyond repair and cause failure. *tr
Brakes have gone from squeaking to deafening squeal and do not seem to stop as quickly. Very spongy. Dealer says they wont have replacement parts for months. Concerned we shouldnt be driving the car and dont trust the dealer to be truthful
I purchased a brand new 2016 Mercedes benz glc300 in december of 2015. Over the past 6 months, the vehicle has begun making a terrible screeching noise when I lightly press the brakes while in reverse. The noise has gotten so loud and painful to the ear that I reflexively take my foot of the brakes causing me to roll backwards faster than necessary. I recently took the vehicle in for its…
Brakes started to squeal when backing up at slow speeds. This progressively got worse over a couple of months, until it is now extremely loud. It seems to be worse when it is cold. 3 Mercedes-benz dealers have all said it is a known issue and to standby for a permanent fix. Started at about 5,000 miles on car, now have about 6500.
Tl* the contact owns a 2016 Mercedes-benz glc 300. While driving and depressing the brake pedal, the contact heard a squealing noise coming from the brakes. The vehicle was taken to the dealer, but was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 6,000.
Had brakes trouble with your 2016 Mercedes-Benz GLC-Class?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the brakes problem on the 2016 Mercedes-Benz GLC-Class?
It's a meaningful issue. 26 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $450.
At what mileage does the brakes typically fail?
Across the 19 complaints that reported odometer mileage, most brakes failures cluster between 3,000 and 8,000 miles, with the median around 6,000. A quarter of owners report trouble before 3,000; a quarter make it past 8,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $450 for brakes repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to brakes?
No active recalls currently cover brakes issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2016/Mercedes-Benz/GLC-Class.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.