Mercedes-Benz EQS SUV 580 4MATIC X296

The MBUX Hyperscreen consists of three displays under a single glass panel, controlled by over 100 electronic control units. Owners frequently report the system becoming unresponsive, refreshing at half-second intervals instead of smoothly, or rebooting entirely while driving. This disrupts navigation, climate control, and vehicle settings. OTA updates regularly fail or get stuck at 80-90%, often requiring multi-day dealer visits for manual software installation. A recall affected over 8,500 EQS and S-Class vehicles built between July 2020 and January 2022. Most problems are resolved by dealer software updates, though these can take 3-23 hours depending on scope. If the issue persists after updates, the central MBUX control unit may need hardware replacement at €1,500-2,500. Cars built from mid-2024 onward with updated software show significant improvement. The problem is most common on 2022 and early 2023 production cars.

Mercedes recalled 14,912 EQE/EQS/EQE SUV/EQS SUV vehicles in June 2024 for battery management system software that could overload from continuous diagnostic requests by other onboard control units. When the BMS memory capacity is exceeded, it disconnects the battery pack from the powertrain, causing a sudden and complete loss of propulsion. This is a critical safety issue. The fix requires a dealer visit and cannot be done via OTA update. Related to this, many owners report recurring 'Battery Malfunction' and 'Malfunction - Towing is not permitted' dashboard warnings, sometimes once or twice a month during the first 20,000 km. In mild cases the car continues to drive and the warning self-clears. In severe cases the car refuses to shift into Drive or Reverse and is completely immobilized, requiring a tow. Mercedes remedied this in production from May 2024, but earlier cars need the dealer update. The repair itself is free under recall, though diagnostic time and repeat visits can be significant.

This is the most widely reported safety complaint. NHTSA data shows approximately 75% of 2022 EQS complaints relate to forward collision avoidance and phantom braking. Owners report sudden, violent emergency braking at speeds above 70 km/h with nothing ahead, as well as abrupt braking while reversing in parking areas. In one documented case, the emergency brakes engaged at highway speed with enough force to deploy airbags. Mercedes has not issued a specific recall for phantom braking, and the manufacturer considers it within the range of normal system operation. Some owners reduce the issue by switching the emergency braking sensitivity from 'normal' to 'late', though the system re-enables at each startup. The issue appears less frequent on 2024+ models with updated sensor calibration. While the braking itself costs nothing to fix, any resulting rear-end collision from unexpected stops can be costly.

The EQS SUV uses Mercedes AIRMATIC air suspension on all four corners. Common failure modes include leaking air struts (rubber seals become brittle over time, causing hissing and uneven ride height), compressor failure from moisture ingress, and faulty height sensors. The EQS SUV's 2,845 kg kerb weight puts more stress on the air suspension than a lighter sedan. A single air spring replacement costs approximately €1,500-2,000 including labor at a Mercedes dealer. The compressor runs €1,000-1,500. If multiple components fail simultaneously, which is common as moisture spreads from a failed compressor to air springs, costs can reach €4,000-5,000. Some early EQS SUV owners have reported premature rear damper wear within 1-2 years of ownership. AIRMATIC components typically last 8-12 years or 100,000-150,000 km on lighter vehicles; the heavy EQS SUV may see earlier failures. Aftermarket replacement options for the EQS SUV are currently very limited.

The EQS SUV has three 12V AGM batteries with a typical lifespan of approximately four years each. With over 100 control units drawing standby power, the 12V system can drain completely within one to two weeks of inactivity if the vehicle is not plugged in. This leaves the owner unable to unlock or start the vehicle. Mercedes explicitly states in the owner's manual that owners should not attempt to jump-start the 12V system themselves, as doing so may void the warranty. Replacement of the main 12V battery costs €300-500 including programming into the SAM module. Since there are three 12V batteries, multiple failures around the same time are common, potentially reaching €500-700. A software update has improved 12V charging management on some models. Prevention: keep the car plugged in when parked for extended periods.

The optional 10-degree rear-axle steering system can lose calibration, producing a steering fault warning on the dashboard and defaulting to a reduced turning circle. The issue is typically caused by a software glitch in the rear steering control module rather than a mechanical failure. A dealer recalibration using XENTRY diagnostic equipment fixes approximately 90% of cases at a cost of €200-400 for the diagnostic session. If the software update does not resolve the issue, the rear steering actuator motor may need replacement, which is considerably more expensive at €2,000-3,000 including parts and labor. One EQS 580 SUV owner reported the rear axle warning appearing after just one week of ownership, with the car stopping in the road and refusing to restart. Over 310 owners have reported this issue across the EQS range.

The EQS SUV uses flush door handles that electrically pop out when the owner approaches with the key. The presentation motor can fail, the software can glitch, or in cold weather the handles can freeze solid in the retracted position. The EQS SUV does not have heated door handles, making this a recurring winter problem in northern European climates. Replacement requires removing the door panel, window glass, and window regulator, and the new module must be paired to the vehicle's central computer. Parts and labor run €300-600 per handle. Some owners have reported multiple handle failures within months of each other. Many apparent failures are actually software glitches that can be temporarily resolved by rebooting the 12V system, but persistent cases require hardware replacement.

Some EQS SUV owners report the car stopping AC charging mid-session, showing 'charging start error' at public chargers, or DC fast charging speed dropping dramatically. Causes include a faulty temperature sensor that incorrectly detects overheating, on-board charger module malfunction, or communication errors between the car and charging infrastructure. There have also been reports of the charging connector thermally fusing to the vehicle's inlet, becoming physically stuck. Parts and labor for the on-board charger module run €1,200-2,500 at a Mercedes dealer. A faulty temperature sensor is a cheaper fix at €300-500. Some charging issues are software-related and resolved by updates at no cost. The 200 kW peak DC charging supports 10-80% in approximately 33 minutes when functioning correctly.

The EQS SUV features Digital Light headlights with 1.3 million micro-mirrors per unit. When these fail, replacement costs are among the highest of any single component on the car. A standard Mercedes LED headlight already costs over €1,500 per unit; the Digital Light system with micro-mirror technology runs €2,500-4,000 per headlight including coding and labor. The headlights use a bonded, non-serviceable design where the lens cannot be replaced independently. Failure is rare but has been reported as condensation buildup followed by partial or complete malfunction. Within warranty this is covered, but outside warranty it represents one of the most expensive single-item repairs on any production car.