U.S. public vehicle records

2018 Mercedes-Benz AMG GLC63: complaints, problems and recalls

Explore the records behind recurring owner reports.

Key facts

1 owner complaints analyzed

7 distinct recall campaigns

12,000 mi median reported failure mileage

Scope: 2018 model year. Data updated: 2026-10-01 (October 1, 2026). 1 complaints include usable failure mileage. View data status.

Owner-reported patterns

Most common problems

Engine is the most frequently named component, appearing in 1 of 1 complaints (100.0%). A complaint can name multiple components.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Engine

Engine: 1

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000

25,000 to 49,999

50,000 to 74,999

75,000 to 99,999

100,000 to 149,999

150,000 and above

Under 25,000: 1; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0

Under 25,000 miles has the most reports with usable mileage (1). 0 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2020

2020: 1

Pattern summary

Engine leads the component reports. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Examples from the source records

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11330356 · 2020-06-23 (June 23, 2020)

I PURCHASED THIS CAR IN 08/2018 WITH 900MILES CERTIFIED PRE OWN. I HAVE TAKEN IT TO DEALER 4 SEPARATE OCCASIONS FOR ENGINE LIGHT. EACH TIME THEY HAVE KEPT IT FOR OVER 2 WKS. THIS LAST TIME THE ENGINE LIGHT WENT ON IN MAY 2020. WE WERE ON FREEWAY GOING ABOUT 70MPH WHEN THE ENGINE WENT ON AND THE CAR LOST POWER AND CAME TO ALMOST A COMPLETE STOP IN MIDDLE OF FREEWAY. I HIT MY HEAD ON FRONT WINDSHIELD DUE TO THE IMPACT. THE DEALER STATES IT HAS BEEN REPAIRED BUT SAME PROBLEMS OCCUR ALMOST MONTHLY. *TR

Owner-reported narrative. 12,000 miles reported. Look up ODI 11330356 at NHTSA ↗

Recall history

7 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.

18V177000 · Seat Belts: Rear/Other:Buckle Assembly | Structure:Body:Roof And Pillars

Reported: 2018-03-15 (March 15, 2018)

Mercedes Benz USA LLC (MBUSA) is recalling certain 2017-2018 GLC43 AMG, 2016-2018 GLC300 4Matic, 2016-2018 GLC300, 2018 GLC63 AMG 4Matic, and 2018 GLC350e 4Matic vehicles. The seat belt latch plates (the parts that insert into the buckles) for the outboard rear seats may retract into the interior paneling, preventing the occupants from being able to use the seat belts.

Consequence: If the rear seat passengers cannot fasten their seat belts, they have an increased risk of injury in the event of a crash.

Remedy: MBUSA will notify owners, and dealers will install a buffer to the c-pillar paneling, free of charge. The recall is expected to begin May 14, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018030012.

NHTSA campaign record ↗

18V683000 · Seat Belts: Rear/Other:Buckle Assembly | Structure:Body:Roof And Pillars

Reported: 2018-10-01 (October 1, 2018)

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2016-2018 Mercedes-Benz GLC300 and GLC300 4Matic, 2018 GLC350e and GLC63 AMG 4Matic and 2017-2018 GLC43 AMG 4Matic vehicles. The seat belt latch plates (the parts that insert into the buckles) for the outboard rear seats may retract into the interior paneling, preventing the occupants from being able to use the seat belts.

Consequence: If the rear seat passengers cannot fasten their seat belts, they have an increased risk of injury in the event of a crash.

Remedy: MBUSA will notify owners, and dealers will install felt strips between the C-pillar and rear side paneling, free of charge. The recall began November 2, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018100002.

NHTSA campaign record ↗

18V838000 · Air Bags:Sensor:Occupant Classification

Reported: 2018-11-27 (November 27, 2018)

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 C300 Cabriolet, C300 Coupe, C300 4Matic Cabriolet, C300, C300 4Matic Coupe, C300 4Matic, C43 AMG Cabriolet, C43 AMG Coupe, C63 S AMG Cabriolet, C350e Plug-In Hybrid, C63 AMG Cabriolet, C63 AMG Coupe, C63 S AMG Coupe, C63 AMG, C63 S AMG, 2018-2019 GLC300 4Matic Coupe, GLC300, GLC63 AMG Coupe, GLC300 4Matic, GLC350e Plug-In Hybrid, GLC43 AMG Coupe, GLC43 AMG, GLC63 S AMG Coupe, and GLC63 AMG vehicles equipped with Audio 20 head units and automatic child seat recognition. The status of the passenger side air bag may not display correctly.

Consequence: If the passenger air bag is incorrectly displayed as 'ON' when it is not, a front seat passenger may be unaware that the air bag will not deploy in the event of a crash, increasing their risk of injury.

Remedy: MBUSA will notify owners, and dealers will update the audio head unit software, free of charge. The recall began January 3, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018120009.

NHTSA campaign record ↗

18V905000 · Air Bags:Frontal:Passenger Side:Inflator Module

Reported: 2018-12-19 (December 19, 2018)

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018-2019 Mercedes-Benz GLC63 AMG Coupe, GLC63S AMG Coupe, and GLC63 vehicles. In the event of a crash, the frontal air bag may have a delayed deployment for certain unbelted front seat passengers. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."

Consequence: A delay in the air bag deployment can increase the risk of injury.

Remedy: MBUSA has notified owners, and dealers will update the air bag control unit software parameters, free of charge. The recall began March 1, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019020004.

NHTSA campaign record ↗

20V776000 · Electrical System:Starter Assembly

Reported: 2020-12-11 (December 11, 2020)

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018-2020 AMG GLC 63 4MATIC vehicles. The power supply cable on the starter might not have been installed correctly, possibly allowing the cable to chafe against the starter housing and short-circuit.

Consequence: If the power supply cable short-circuits, it can result in a stall, increasing the risk of a crash. In addition, a short-circuit can increase the risk of a fire.

Remedy: MBUSA will notify owners, and dealers will inspect the starter harness and power supply cable installation, and correct it as necessary, free of charge. The recall began March 18, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021010006.

NHTSA campaign record ↗

21V058000 · Communication: Auto Crash Notification | Electrical System:Software

Reported: 2021-02-05 (February 5, 2021)

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.

Consequence: Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.

Remedy: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.

NHTSA campaign record ↗

21V197000 · Structure:Body:Roof And Pillars

Reported: 2021-03-19 (March 19, 2021)

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2020 C300 Coupe, C43 Coupe AMG, C43 AMG, 2015-2020 C300, GLA250, 2016-2018 C350e, CLA45 Coupe AMG, 2015 C400, S65 AMG, 2015-2019 C63 AMG, 2016 C450, 2015-2016 GLA45 AMG, S600, 2016-2020 GLC300, 2017-2019 GLC43 AMG, GLE43 Coupe AMG, 2014-2019 CLA250 Coupe, 2014-2015 CLA45 AMG, 2018 GLC63 AMG, 2014-2017 S550, 2018-2020 S450, 2016-2019 GLE63 Coupe AMG, 2016 GLE450 Coupe, 2014-2020 S63 AMG, 2018-2019 S560, and 2019 GLC350e vehicles equipped with a panoramic sunroof. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair.

Consequence: The adhesive bonding of the front panel might deteriorate, possibly causing the front panel to detach from the vehicle and become a road hazard, increasing the risk of a crash.

Remedy: Mercedes-Benz dealer will remove the bonded panel and will install a new front panel by following the detailed repair instructions and using the approved primer, cleaner and adhesive, free of charge. Owner notification letters were mailed on September 3, 2021 and October 26, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.

NHTSA campaign record ↗

Explore the data

Vehicle analysis explorer

Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.

Data completeness

1 unique complaints in this selection. Analysis snapshot: 2026-10-01.

100.0%Usable mileage1 / 1 records

100.0%Valid incident date1 / 1 records

100.0%Valid filing date1 / 1 records

100.0%Ordered incident and filing dates1 / 1 records

Missing, zero and invalid mileage is excluded. Dates after the snapshot are excluded. Examples are limited selections, not a representative sample.

Problems by model year

Model-wide comparison of the eight most reported components across the model. Cells show counts and shares within each model year. Open a cell for source examples.

From model yearThrough model year

Component complaint heatmap
Component	2018	2019	2020	2021
Engine	1100.0% ODI 11330356 · 12,000 mi I PURCHASED THIS CAR IN 08/2018 WITH 900MILES CERTIFIED PRE OWN. I HAVE TAKEN IT TO DEALER 4 SEPARATE OCCASIONS FOR ENGINE LIGHT. EACH TIME THEY HAVE KEPT IT FOR OVER 2 WKS. THIS LAST TIME THE ENGINE LIGHT WENT ON IN MAY 2020. WE WERE ON FREEWAY GOING ABOUT 70MPH WHEN THE ENGINE WENT ON AND THE CAR LOST POWER AND CAME TO ALMOST A COMPLETE STOP IN MIDDLE OF FREEWAY. I HIT MY HEAD ON FRONT WINDSHIELD DUE TO THE IMPACT. THE DEALER STATES IT HAS BEEN REPAIRED BUT SAME PROBLEMS OCCUR ALMOST MONTHLY. *TR Look up ODI 11330356 at NHTSA ↗	133.3% ODI 11682158 Engine runs rough and activates a flashing engine light. Sounds like the engine is misfiring. On two occasions the engine stalled,(no power steering, brakes...) luckily not in a dangerous situation. No engine codes were visible to a technician when try to diagnose. Car seemed to run fine again after restart. Look up ODI 11682158 at NHTSA ↗	00.0% No examples available for this selection.	150.0% ODI 11725180 This 2021 Mercedes-Benz GLC 63 AMG has experienced repeated and escalating warranty defects involving engine performance, loss of acceleration, air suspension failure, and now inoperative advanced safety systems including blind spot and active brake assist. Despite numerous repair attempts at authorized dealerships, including extensive engine teardown and cylinder head replacement, the manufacturer has been unable to permanently repair the vehicle. The car has been out of service for 145 cumulative days to date and continues to exhibit safety-r… Look up ODI 11725180 at NHTSA ↗
Power Train	00.0% No examples available for this selection.	00.0% No examples available for this selection.	150.0% ODI 11549774 · 24,000 mi The contact owns a 2020 Mercedes-Benz GLC63. The contact stated that while his wife was driving at highway speeds, the vehicle inadvertently decelerated while the accelerator pedal was being depressed. The check engine warning light illuminated, and a message displayed on the instrument panel stated that the “Transmission Needs to Cool, Stop and Pull Over Immediately”. The contact stated that the vehicle had locked in first gear and decelerated to approximately 55 MPH. Additionally, the contact stated that his wife was able to navigate the vehi… Look up ODI 11549774 at NHTSA ↗	150.0% ODI 11725180 This 2021 Mercedes-Benz GLC 63 AMG has experienced repeated and escalating warranty defects involving engine performance, loss of acceleration, air suspension failure, and now inoperative advanced safety systems including blind spot and active brake assist. Despite numerous repair attempts at authorized dealerships, including extensive engine teardown and cylinder head replacement, the manufacturer has been unable to permanently repair the vehicle. The car has been out of service for 145 cumulative days to date and continues to exhibit safety-r… Look up ODI 11725180 at NHTSA ↗
Unknown Or Other	00.0% No examples available for this selection.	266.7% ODI 11474323 The SIM has the potential to become disabled and won’t connect to the mobile network. They have announced the problem but it has been months with no remedy even though it’s stated to be performed over the air. If I get into an accident there is a chance emergency responders will show up late if at all. This risk is there everytime I drive my vehicle Look up ODI 11474323 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.
Electrical System	00.0% No examples available for this selection.	00.0% No examples available for this selection.	150.0% ODI 11373040 · 8,900 mi WHEN USING ENGINE START/STOP FUNCTION, OVER THE COURSE OF 3 DAYS AFTER PICKING UP THE CAR, WHEN AT A LIGHT, THE CAR DID NOT START BACK UP. Look up ODI 11373040 at NHTSA ↗	00.0% No examples available for this selection.
Electrical System:Ignition:Coil	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.	150.0% ODI 11697988 · 65,000 mi The contact owns a 2021 Mercedes-Benz AMG GLC63. The vehicle was taken to the local dealer for routine maintenance, and the contact was informed that there was an issue with the ignition coil. There was a misfire coming from the engine. The dealer determined that the ignition coil needed to be replaced. The vehicle was not repaired. Upon investigation, the contact linked the failure to Technical Service Bulletin: 2021070006. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance. The failure mileage was appr… Look up ODI 11697988 at NHTSA ↗
Steering	00.0% No examples available for this selection.	133.3% ODI 11289368 · 15 mi TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ GLC63C4. THE CONTACT STATED THAT THE STEERING WHEEL SHOOK AND VIBRATED. WHEN TURNING THE VEHICLE, IT WOBBLED, MADE A LOUD KNOCKING NOISE, JERKED, AND SKIPPED WHEN THE CONTACT ATTEMPTED TO COMPLETE A TURN. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF THE WOODLANDS (16917 INTERSTATE I45, CONROE, TX 77385, [phone removed]), BUT WAS NOT DIAGNOSED. THE DEALER TEST DROVE THE VEHICLE AND WAS ABLE TO RECREATE THE FAILURE. THE DEALER STATED THAT THE VEHICLE WAS PERFORMING NORMALLY. THE VEHICLE WAS NOT REPAIRED. THE… Look up ODI 11289368 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.
Suspension	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.	150.0% ODI 11725180 This 2021 Mercedes-Benz GLC 63 AMG has experienced repeated and escalating warranty defects involving engine performance, loss of acceleration, air suspension failure, and now inoperative advanced safety systems including blind spot and active brake assist. Despite numerous repair attempts at authorized dealerships, including extensive engine teardown and cylinder head replacement, the manufacturer has been unable to permanently repair the vehicle. The car has been out of service for 145 cumulative days to date and continues to exhibit safety-r… Look up ODI 11725180 at NHTSA ↗

Darker cells indicate a larger share of submitted complaints. Components overlap. This measures complaint composition, not failure probability.

Failure mileage by component

Median and middle 50% of usable owner-reported mileages. Ranges require at least five records.

Component failure mileage distribution
Component	Mileage range (25th–75th percentile)	Median	Usable records	Examples
Engine	Too few reports for a range	12,000 mi	1 (sparse)	ODI 11330356 · 12,000 mi I PURCHASED THIS CAR IN 08/2018 WITH 900MILES CERTIFIED PRE OWN. I HAVE TAKEN IT TO DEALER 4 SEPARATE OCCASIONS FOR ENGINE LIGHT. EACH TIME THEY HAVE KEPT IT FOR OVER 2 WKS. THIS LAST TIME THE ENGINE LIGHT WENT ON IN MAY 2020. WE WERE ON FREEWAY GOING ABOUT 70MPH WHEN THE ENGINE WENT ON AND THE CAR LOST POWER AND CAME TO ALMOST A COMPLETE STOP IN MIDDLE OF FREEWAY. I HIT MY HEAD ON FRONT WINDSHIELD DUE TO THE IMPACT. THE DEALER STATES IT HAS BEEN REPAIRED BUT SAME PROBLEMS OCCUR ALMOST MONTHLY. *TR Look up ODI 11330356 at NHTSA ↗

Complaint and recall timeline

Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.

ComponentPeriod

Solid line: filed complaints. Dashed amber lines: recall announcement dates for this vehicle selection; markers include all recall components. The latest month is partial. Temporal proximity does not establish causation.

Monthly counts, recall campaigns and complaint examples

Monthly complaint and recall timeline
Month	Campaigns announced	Examples
2024-11	None	No examples available for this selection.
2024-12	None	No examples available for this selection.
2025-01	None	No examples available for this selection.
2025-02	None	No examples available for this selection.
2025-03	None	No examples available for this selection.
2025-04	None	No examples available for this selection.
2025-05	None	No examples available for this selection.
2025-06	None	No examples available for this selection.
2025-07	None	No examples available for this selection.
2025-08	None	No examples available for this selection.
2025-09	None	No examples available for this selection.
2025-10	None	No examples available for this selection.
2025-11	None	No examples available for this selection.
2025-12	None	No examples available for this selection.
2026-01	None	No examples available for this selection.
2026-02	None	No examples available for this selection.
2026-03	None	No examples available for this selection.
2026-04	None	No examples available for this selection.
2026-05	None	No examples available for this selection.
2026-06	None	No examples available for this selection.
2026-07	None	No examples available for this selection.
2026-08	None	No examples available for this selection.
2026-09	None	No examples available for this selection.
2026-10 (partial)	None	No examples available for this selection.

Emerging complaint spikes

Complete months in the latest six months with at least 10 complaints, at least twice the preceding 12-month average, and at least three square-root deviations above that average.

This is a descriptive screening rule, not a statistical defect finding. Publicity and reporting changes can increase submissions.

No complete months meet the spike thresholds for this selection.

Equal-age model-year comparison

Model-wide cumulative reports during the first three or five calendar years, starting with the model year (age 0). Only fully elapsed windows are compared.

Observation windowFirst model yearSecond model year

2020: 1 complaints · 2021: 1 complaints

Equal observation windows
Model year	Through age 0	Through age 1	Through age 2
2020	1	1	1
2021	0	0	1

Date coverage across each selected cohort

Date basis for all complaints in selected model years
Year	Incident dates used	Filing date fallbacks	Excluded dates
2020	2	0	0
2021	2	0	0

Incident date is preferred when valid and no later than filing; otherwise filing date is used. Model year approximates age. Equal observation time does not adjust for sales, distance driven or reporting delays. One complaint linked to multiple model years can appear in each cohort.

Components reported together

Each cell counts unique complaints naming both components. Open a nonzero cell for examples.

Component co-occurrence matrix
Component	Engine
Engine	—

Co-reporting does not establish that one component caused another concern.

Recurring narrative patterns

Specific keyword mentions beyond broad component labels. Matching includes negations and comparisons and does not confirm a diagnosis.

Search patterns

1 patterns with matching reports.

Stalling or loss of power

1 mentions · 100.0% of complaints

Median mileage: 12,000 mi (1 usable records).

ODI 11330356 · 12,000 mi

Look up ODI 11330356 at NHTSA ↗

Matching rule

\b(stall\w*|loss of power|lost power|engine shut\w* off)\b