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Mercedes-Benz · Known Issues

2023-2025 Mercedes-Benz EQS SUV Problems & Issues

2023-2025 model years · 220+ owner reports · Updated September 2026

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Issue summary

According to Au7o's analysis of 220+ owner reports, the 2023-2025 Mercedes-Benz EQS SUV has 8 documented known issues, with 4 rated critical. The most serious are DC Fast-Charge Abort / DC Control Unit Failure at 150 kW+ Stations ($0-$3,500 repair), Battery Management System Diagnostic Memory Overflow Opens HV Contactors (Turtle Mode) ($0-$0 repair), 12V Auxiliary Battery Discharge Causing Dead Vehicle Despite Charged HV Pack ($350-$900 repair) and Main Fuse Box 80-Amp Fuse Failure Causing Sudden Loss of Drive Power ($0-$0 repair). The most commonly reported issue is Air Suspension Compressor Excessive Noise with 220 owner reports. Across all issues with published estimates, repair costs range from $350 to $6,000. DIY maintenance guides at au7o.io.

In This Article

  • EQS SUV Electrical5
  • EQS SUV Suspension2
  • EQS SUV HVAC1
  • FAQ
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In This Article

  • Electrical5
  • Suspension2
  • HVAC1
  • FAQ

All 8 Known Issues

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ALL YEARS202520242023

Owners repeatedly report that the EQS SUV will charge normally on Level 1 and Level 2 AC but throws a charging fault and disconnects within seconds to minutes on high-power CCS DC stations (Electrify America, EVgo 150-350 kW), while sometimes still working on 50 kW units. The failure traces to the DC charging control unit / HV charging interface rather than the pack itself - multiple owners had the DC control unit replaced (some more than once) before the fault cleared, and at least one had an entire HV battery swapped without fixing it. A related trigger is the Plug-and-Charge handshake: several owners found that starting the session from the Mercedes me app instead of Plug-and-Charge avoids the abort.

Common Symptoms

  • Charging stops seconds after starting at a DC fast charger
  • "Charging interrupted" or charging fault message
  • AC home charging works normally
  • Fault only at 150 kW+ stations, sometimes not at 50 kW
  • Repeated failed session attempts leave driver stranded

How to Fix

Have the dealer read the charging-system fault memory and update the charging control unit software first; if the abort recurs, the DC control unit (HV charging module) is the documented replacement part. As an interim workaround, initiate DC sessions with the Mercedes me app or an RFID card rather than Plug-and-Charge.

Typical repair cost:$0 - $3,500

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Community Reported
Medium ConfidenceVerifiedReviewed Aug 2026

Other control units on the EVA2 bus continuously send diagnostic requests to the high-voltage battery management system. The BMS memory overflows, the module shuts down, and the HV contactors open - disconnecting the 108 kWh pack from the drive unit. The result is an instant loss of propulsion at speed with the red turtle icon on the display, even with a nearly full state of charge. NHTSA recall 24V-372 covered 14,912 EQE/EQS sedans and SUVs, and owners reported the failure occurring on freeways before the fix.

This issue also affects: Mercedes-Benz EQE, Mercedes-Benz EQS, Mercedes-Benz GLB

Common Symptoms

  • Complete loss of drive power while driving
  • Red turtle warning icon on display
  • "Electrical system malfunction" message
  • Vehicle coasts to a stop with charge remaining in the pack
  • Restart required to regain drive

How to Fix

Dealer reflashes the battery management system software under recall 24V-372 (no cost). If loss-of-power events continue after the flash, the shop should check for a weak 12V auxiliary battery and pull HV network fault memory, since a low 12V supply produces the same symptom set.

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Typical repair cost:$0 - $0

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

The EQS SUV's 12V auxiliary battery supports the entire low-voltage network - Hyperscreen, door handles, locks, and the contactors that connect the HV pack. On early X296 software the DC/DC converter did not reliably top up the 12V battery while the vehicle was parked, so cars left standing (or driven only short distances) would go completely dead: no display, no door handle presentation, no READY mode, with the 108 kWh pack sitting at 80%+ charge. Dealers commonly blame infrequent driving before diagnosing the parasitic drain or replacing the battery.

This issue also affects: Mercedes-Benz EQE, Mercedes-Benz GLA, Mercedes-Benz Sprinter

Common Symptoms

  • Vehicle completely dead after sitting overnight or for a few days
  • Hyperscreen dark, no response from any control
  • Door handles do not present and doors will not unlock
  • Cascade of unrelated warning messages before the failure
  • No READY mode despite high HV state of charge

How to Fix

Have all outstanding software updates applied (the DC/DC top-up behavior was addressed by updates), then load-test and replace the 12V AGM auxiliary battery if it is weak. Mercedes advises against conventional jump-starting; the underhood positive jump terminal under the red cap plus chassis ground is the documented emergency method, and a fully dead car normally needs a flatbed. Owners who park for long periods should use a maintainer on the 12V terminals.

Typical repair cost:$350 - $900

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Community Reported
Medium ConfidenceVerifiedReviewed Aug 2026

The main fuse box in the X296 EQS SUV (shared across the EVA2 EQE/EQS family) was built with improperly manufactured 80-amp fuses. The fuse element can fail prematurely under normal load, cutting the low-voltage supply that the drive, restraint, and cluster systems depend on. Mercedes-Benz recalled the vehicles under NHTSA campaign 24V-115; a fire risk could not be ruled out. A follow-up campaign (25V-255) was opened after dealers installed the wrong fuse box on some vehicles during the first repair, re-creating the same failure mode.

This issue also affects: Mercedes-Benz GLB

Common Symptoms

  • Sudden loss of drive power while driving
  • Instrument cluster goes blank
  • Airbag/restraint system warning light
  • Vehicle will not enter READY mode
  • Multiple simultaneous electrical warning messages

How to Fix

Have the dealer perform recall 24V-115 (main fuse box inspection/replacement) free of charge, and verify with the VIN whether the vehicle also falls under the 25V-255 re-repair campaign because an incorrect fuse box was fitted the first time. There is no owner-serviceable repair - the correct part number must be matched to the VIN and coded.

Typical repair cost:$0 - $0

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

EQS SUV owners report the 56-inch Hyperscreen going black at random - typically after the car has been driven for a while and heat-soaked - with the display sometimes only returning after the vehicle sits switched off for one to two hours. A milder variant is momentary blanking followed by the MB EQ splash screen as the head unit silently reboots. The root cause is a fault in the central multimedia computer; software reloads fix some cars, while others need the head unit replaced under warranty.

Common Symptoms

  • Hyperscreen goes completely black while driving
  • Display returns only after the car sits for 1-2 hours
  • Screen blanks and reloads to the MB EQ logo
  • Climate and navigation controls unavailable when screen is out
  • Frozen or unresponsive touch input

How to Fix

First have the dealer reload the full MBUX operating system with the current release rather than applying an incremental patch - this resolves a share of cases. If blackouts persist after a clean reload, the central multimedia/head unit computer is replaced under the 4-year/50,000-mile warranty. A 12V battery disconnect can restore a frozen screen temporarily but is not a fix.

Typical repair cost:$0 - $6,000

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Community Reported
Low ConfidenceVerifiedReviewed Aug 2026

EQS SUV owners consistently report the factory tires - commonly Goodyear Eagle F1 - worn out at 11,000 to 15,000 miles, with the rear axle and especially the right rear wearing fastest. The drivers are the roughly 6,200 lb curb weight, instant motor torque, aggressive rear camber, and the rear-axle steering system, which scrubs the rear tires and accelerates wear further if its alignment or calibration has drifted. Dealers frequently decline warranty coverage on the tires.

Common Symptoms

  • Rear tires worn to the wear bars by 11,000-15,000 miles
  • Right rear tire wearing noticeably faster than the others
  • Inner shoulder wear on the rear tires
  • Increased road noise as tires wear
  • Tire pressure monitoring or handling complaints before wear is noticed

How to Fix

Rotate tires far more often than the standard EV service interval - owners who cross-rotate every 3,000-5,000 miles report substantially longer life. Have a four-wheel alignment performed that includes the rear-axle steering calibration in XENTRY, since a drifted rear-steer calibration produces exactly this wear pattern. When replacing, consider a heavier-duty EV-rated tire rather than the OE low-rolling-resistance compound.

Typical repair cost:$1,200 - $2,600

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Community Reported
Medium ConfidenceVerifiedReviewed Aug 2026
Community reported
220 owners

The AIRMATIC air suspension compressor on the EQS SUV produces an audible drone or buzzing noise during ride height adjustments, which is particularly noticeable in the cabin due to the quiet electric drivetrain. The compressor cycles more frequently than expected to maintain ride height under the heavy battery load.

This issue also affects: Mercedes-Benz EQE SUV, Mercedes-Benz EQE, Mercedes-Benz EQS

Common Symptoms

  • Audible buzzing or droning from rear of vehicle
  • Compressor runs for 30+ seconds during height changes
  • Noise noticeable at drive-in restaurants or quiet areas
  • Compressor cycles frequently while parked

How to Fix

Mercedes has released an updated compressor with improved sound insulation for later production vehicles. Dealers can install the updated compressor under warranty. Check that all air springs are holding pressure — a slow leak will cause excessive compressor cycling.

Owner tips & cautions

  • TipAsk your dealer to check for the updated compressor part number with improved sound damping. If under warranty, they should swap it at no cost. Also verify no air springs have slow leaks causing excessive cycling.

Research This Issue

Based on 220 owner reports

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Community Reported
High Confidence220 owner reportsLast reported by owners Feb 2026Reviewed Mar 2026

The EQS SUV's thermal management ties cabin heating and cooling to the HV circuit through a heat pump and high-voltage heat exchanger. The documented failure on the EQS SUV is A/C that works, then blows warm intermittently and cannot be reproduced on demand at the dealer. (Similar heating complaints exist on the EQB and EQS sedan but are not documented on the SUV, so they are excluded here.) Diagnosis is frequently misdirected to refrigerant charge first; documented repairs have included replacement of the high-voltage heat exchanger and, in one case, the full A/C and heating hardware after contamination was found in the coolant lines.

Common Symptoms

  • A/C blows warm intermittently, then works again
  • No hot air from upper dash vents below about 40F
  • Heat goes cold roughly 15 minutes after startup
  • A/C indicator activates on its own with very cold air at a warm setpoint
  • Climate control unresponsive to setpoint changes

How to Fix

Insist the dealer read the thermal-management control unit fault memory rather than simply recharging refrigerant. A full MBUX/thermal software reload resolves some intermittent cases. Persistent faults require replacement of the high-voltage heat exchanger or heat pump components under the 4-year/50,000-mile warranty; if coolant contamination is found, the affected lines and components must be replaced together.

Typical repair cost:$800 - $4,500

Research This Issue

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Community Reported
Low ConfidenceVerifiedReviewed Aug 2026
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Frequently Asked Questions

What are the most common Mercedes-Benz EQS SUV problems?

According to Au7o's analysis of 220+ owner reports, the 2023-2025 Mercedes-Benz EQS SUV has 8 documented issues. The most frequently reported are: DC Fast-Charge Abort / DC Control Unit Failure at 150 kW+ Stations, Battery Management System Diagnostic Memory Overflow Opens HV Contactors (Turtle Mode), 12V Auxiliary Battery Discharge Causing Dead Vehicle Despite Charged HV Pack. Of these, 4 are rated critical and should be addressed promptly.

Is the Mercedes-Benz EQS SUV reliable?

The 2023-2025 Mercedes-Benz EQS SUV has 8 known issues documented across 220+ owner reports. 4 issues are rated critical: DC Fast-Charge Abort / DC Control Unit Failure at 150 kW+ Stations and Battery Management System Diagnostic Memory Overflow Opens HV Contactors (Turtle Mode) and 12V Auxiliary Battery Discharge Causing Dead Vehicle Despite Charged HV Pack and Main Fuse Box 80-Amp Fuse Failure Causing Sudden Loss of Drive Power. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Mercedes-Benz EQS SUV problems?

Repair costs for known Mercedes-Benz EQS SUV issues range from $0 to $6,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, DC Fast-Charge Abort / DC Control Unit Failure at 150 kW+ Stations, typically costs $0-$3,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2023-2025 Mercedes-Benz EQS SUV DC Fast-Charge Abort / DC Control Unit Failure at 150 kW+ Stations?

Owners repeatedly report that the EQS SUV will charge normally on Level 1 and Level 2 AC but throws a charging fault and disconnects within seconds to minutes on high-power CCS DC stations (Electrify America, EVgo 150-350 kW), while sometimes still working on 50 kW units. The fai… Repairs typically run $0-$3,500. Severity: high.

What is the 2023-2025 Mercedes-Benz EQS SUV Battery Management System Diagnostic Memory Overflow Opens HV Contactors (Turtle Mode)?

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data sourced from 220+ owner reports, NHTSA recalls, TSBs, and automotive forums.

Other control units on the EVA2 bus continuously send diagnostic requests to the high-voltage battery management system. The BMS memory overflows, the module shuts down, and the HV contactors open - disconnecting the 108 kWh pack from the drive unit. The result is an instant loss… Repairs typically run $0-$0. Severity: high.

What is the 2023-2025 Mercedes-Benz EQS SUV 12V Auxiliary Battery Discharge Causing Dead Vehicle Despite Charged HV Pack?

The EQS SUV's 12V auxiliary battery supports the entire low-voltage network - Hyperscreen, door handles, locks, and the contactors that connect the HV pack. On early X296 software the DC/DC converter did not reliably top up the 12V battery while the vehicle was parked, so cars le… Repairs typically run $350-$900. Severity: high.

What is the 2023-2024 Mercedes-Benz EQS SUV Main Fuse Box 80-Amp Fuse Failure Causing Sudden Loss of Drive Power?

The main fuse box in the X296 EQS SUV (shared across the EVA2 EQE/EQS family) was built with improperly manufactured 80-amp fuses. The fuse element can fail prematurely under normal load, cutting the low-voltage supply that the drive, restraint, and cluster systems depend on. Mer… Repairs typically run $0-$0. Severity: high.

What is the 2023-2025 Mercedes-Benz EQS SUV Rapid Rear Tire Wear on 21/22-Inch Wheels (11,000-15,000 Mile Tire Life)?

EQS SUV owners consistently report the factory tires - commonly Goodyear Eagle F1 - worn out at 11,000 to 15,000 miles, with the rear axle and especially the right rear wearing fastest. The drivers are the roughly 6,200 lb curb weight, instant motor torque, aggressive rear camber… Repairs typically run $1,200-$2,600. Severity: medium.

What is the 2023-2025 Mercedes-Benz EQS SUV MBUX Hyperscreen Blackout and Head Unit Reboot Loop?

EQS SUV owners report the 56-inch Hyperscreen going black at random - typically after the car has been driven for a while and heat-soaked - with the display sometimes only returning after the vehicle sits switched off for one to two hours. A milder variant is momentary blanking f… Repairs typically run $0-$6,000. Severity: medium.

What is the 2023-2025 Mercedes-Benz EQS SUV Intermittent Climate Control Failure from High-Voltage Heat Exchanger / Heat Pump Faults?

The EQS SUV's thermal management ties cabin heating and cooling to the HV circuit through a heat pump and high-voltage heat exchanger. The documented failure on the EQS SUV is A/C that works, then blows warm intermittently and cannot be reproduced on demand at the dealer. (Simila… Repairs typically run $800-$4,500. Severity: medium.

What is the 2023-2025 Mercedes-Benz EQS SUV Air Suspension Compressor Excessive Noise?

The AIRMATIC air suspension compressor on the EQS SUV produces an audible drone or buzzing noise during ride height adjustments, which is particularly noticeable in the cabin due to the quiet electric drivetrain. The compressor cycles more frequently than expected to maintain rid… Severity: low.