2021 — 2026
Dual Motor - High-Performance AWD
Electric
Listen carefully for any clicking or knocking sounds from the front suspension when steering at low speeds, as the high-torque nature of the 4MATIC system can occasionally put extra strain on bushings over time.
Verify the operation of the MBUX infotainment system by swiping through menus and using voice commands; ensure the screen isn't flickering or lagging, as electrical glitches can sometimes occur in complex, software-heavy systems.
Perform a 'hard' start on a quiet road to ensure the dual-motor power delivery is smooth and consistent, checking for any drivetrain hesitation that might indicate a sensor synchronization issue.
Check the condition of the charging port door and seal; ensure it clicks shut firmly and that the interior area is clean, as debris buildup can occasionally affect the locking mechanism in NZ's varied weather.
Consider a full diagnostic check on the battery health report and a refresh of the cabin air filtration system.
Typically when a proactive inspection of the regenerative braking system and auxiliary cooling loops is recommended.
A good time to have a specialist assess the drive unit mounts and cooling pump longevity.
Have the brake fluid flushed every two years to ensure the regenerative braking interface remains perfectly calibrated.
Keep an eye on tire pressures; the EQA 350 has significant torque and heavier curb weight, so regular rotations will help keep uneven wear at bay.
Regularly clean the exterior camera lenses and radar sensors to ensure the driver assistance safety features continue to operate with high accuracy.
Ensure your 12V auxiliary battery is tested annually, as it powers the car's computers even when the high-voltage battery is at full charge.
Keep your digital service record up to date through an authorised dealer or a reputable EV specialist to maintain the vehicle's resale value.
Estimated repair costs if issues arise
While reliable, these systems handle both cabin comfort and battery thermal management; if the system loses efficiency after a few years, it's worth having it professionally serviced.
Given the weight of the battery pack and the instant torque of the 350 4MATIC, these components work harder than in a standard petrol car; you might eventually need to budget for a refresh to maintain that signature Mercedes ride quality.
This is a common maintenance item in all premium EVs; it acts as the 'brain' power source, and it is wise to be prepared for a swap if the car displays unusual start-up warnings.
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Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer