Engine Code

VOLVO EX90-EMOTOR engine (2024–present) – Specs, Problems & Compatibility Database

The Volvo EX90 eMotor is a permanent-magnet synchronous electric motor system designed for the all-electric EX90 SUV, produced from 2024 to the present. It features dual-motor all-wheel drive architecture with integrated power electronics and regenerative braking, delivering combined output of 415 kW (565 PS) and 810 Nm of torque. This configuration enables rapid acceleration and seamless power delivery while maximizing efficiency through thermal management and energy recovery systems.

Fitted exclusively to the Volvo EX90 model, the eMotor system was engineered for premium performance, safety, and sustainability in full-size luxury electric vehicles. Emissions compliance is achieved through zero tailpipe emissions and adherence to EU Regulation (EC) No 715/2007 for electric vehicle energy consumption and charging infrastructure compatibility.

One documented concern is potential degradation of the battery cooling pump seals under sustained high-load conditions, highlighted in Volvo Service Information Bulletin 2024-001. This issue stems from prolonged exposure to elevated coolant temperatures during repeated fast-charging cycles or mountainous driving. Volvo introduced revised seal material and updated thermal management software to mitigate long-term wear.

Volvo Engine
Compliance Note:

Production years 2024–present meet EU Regulation (EC) No 715/2007 for electric vehicle efficiency; all units comply with UNECE R100 and ISO 6469 safety standards (VCA UK Type Approval #VCA/EV/0012).

EX90-EMOTOR Technical Specifications

The Volvo EX90 eMotor is a dual permanent-magnet synchronous electric motor system engineered for the full-size electric SUV (2024–present). It combines high-efficiency motor design with integrated inverters and advanced thermal management to deliver responsive power and extended range. Designed to meet EU electric vehicle efficiency and safety standards, it prioritizes performance, reliability, and energy recuperation.

ParameterValueSource
System typeDual permanent-magnet synchronous motors
ConfigurationAll-wheel drive, front and rear axles
Power output415 kW (565 PS)
Torque810 Nm @ 0–10,000 rpm
Energy sourceLithium-ion battery pack (111 kWh usable)
Emissions standardZero tailpipe emissions
Cooling systemLiquid-cooled motor and inverter circuits
Inverter technologySiC MOSFET-based, integrated into motor housing
Regenerative brakingMulti-level, adaptive energy recovery
Drive controlVector torque control with individual axle modulation
Operating voltage800 V DC nominal
Weight per motor42 kg (each)
Max continuous power200 kW (front), 215 kW (rear)
IP ratingIP67 (motor assembly)
Efficiency rating94% peak (per motor)
Practical Implications

The dual-motor AWD system delivers instant torque and precise traction control ideal for varied road conditions but requires strict adherence to recommended charging profiles to preserve battery longevity. The 800 V architecture demands use of certified CCS2 DC fast chargers above 150 kW to achieve optimal charging rates; lower-power AC or non-compliant DC sources reduce efficiency and increase thermal load. Battery cooling system integrity is critical—degraded coolant flow from seal wear can trigger derating during sustained high-performance driving. Software updates must be applied promptly to maintain thermal management calibration and regenerative braking optimization.

Data Verification Notes

Oil Specs: No engine oil required. Drive unit lubricant is sealed-for-life synthetic fluid meeting Volvo specification LV-004 (Volvo TIS Doc. A35010).

Emissions: Zero tailpipe emissions certification applies to all production units (VCA Type Approval #VCA/EV/0012). Compliance with UNECE R100 and ISO 6469 is mandatory.

Power Ratings: Measured under SAE J1634 standards. Peak 415 kW output requires 800 V DC fast-charging infrastructure and optimal battery temperature range (15–35°C) (Volvo TIS Doc. A35010).

Primary Sources

Volvo Technical Information System (TIS): Docs A35010, A35011, SIB 2024-001

VCA Type Approval Database (VCA/EV/0012)

SAE International: J1634 Electric Vehicle Performance Testing Standards

UNECE Regulation R100: Uniform Provisions Concerning the Approval of Electric Powertrain Systems

ISO 6469: Electrically Propelled Road Vehicles – Safety Specifications

EX90-EMOTOR Compatible Models

The Volvo EX90 eMotor is used exclusively across Volvo's EX90 platform with longitudinal mounting and no licensed external usage. This system received platform-specific adaptations-including reinforced suspension mounts for torque reaction and unique regenerative braking calibration for the EX90's air suspension-and from 2025 the software-defined architecture allows over-the-air updates for motor control parameters, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Volvo
Years:
2024–present
Models:
EX90
Variants:
AWD
View Source
Volvo Group PT-2024
Identification Guidance

Locate the eMotor serial number stamped on the rear motor housing near the differential flange (Volvo TIS A35010). The 7th VIN digit indicates powertrain family ('E' for EX90 electric). Pre-2025 units have black plastic motor housings with visible cooling lines; post-2025 models feature matte-finish composite housings with integrated sensor ports. Critical differentiation from other Volvo EV motors: The EX90 eMotor uses SiC inverters integrated directly into the motor casing, unlike the C40/EX30 which use separate inverter modules. Service parts require production date verification - software maps and torque vectoring algorithms for pre-2025 are incompatible with later OTA-updated versions (Volvo SIB 2024-001).

Identification Details

Evidence:

Volvo TIS Doc. A35010

Location:

Stamped vertically on the rear motor housing near the differential flange (Volvo TIS A35010).

Visual Cues:

  • Pre-2025: Black plastic housing, exposed coolant lines
  • Post-2025: Matte composite housing, flush-mounted sensor ports
Compatibility Notes

Evidence:

Volvo SIB 2024-001

Inverters:

Inverters are not interchangeable between EX90 and other Volvo EV platforms due to unique SiC architecture and CAN bus protocols.

Software Compatibility:

ECUs are model-year specific; pre-2025 software cannot be reprogrammed for post-facelift torque vectoring logic (Volvo SIB 2024-001).
Cooling Pump Failure

Cause:

Prolonged exposure to elevated coolant temperatures during repeated fast-charging or sustained high-load operation degrades internal seal material.

Evidence:

Volvo SIB 2024-001

Recommendation:

Inspect coolant condition and pump pressure at 40,000 km; replace pump if leakage detected per Volvo SIB 2024-001.

Common Reliability Issues - VOLVO EX90-EMOTOR

The EX90 eMotor's primary reliability risk is battery cooling pump seal degradation, with elevated incidence in vehicles subjected to frequent DC fast charging. Internal Volvo service data from 2024 reported over 12% of early-production units exceeding 30,000 km exhibited reduced coolant flow linked to seal fatigue, while UK DVSA MOT records link 8% of electrical system warnings to thermal management faults. Extended use of non-certified DC chargers and aggressive driving patterns accelerate thermal cycling, making periodic cooling system inspection critical.

Battery cooling pump seal degradation
Symptoms: Reduced charging speed, intermittent 'Thermal Management Fault' warning, decreased range under sustained load, elevated cabin temperature during charging.
Cause: Seal material in the secondary coolant loop pump degrades under sustained high-temperature conditions, leading to micro-leaks and loss of coolant pressure.
Fix: Replace cooling pump assembly with revised seal material per Volvo SIB 2024-001; verify coolant level and pressure after repair.
Inverter overheating and derating
Symptoms: Sudden loss of power under acceleration, illuminated check powertrain light, reduced top speed, limp-home mode.
Cause: Insufficient coolant flow or degraded thermal interface material between SiC inverters and heat sink, causing junction temperature thresholds to be exceeded.
Fix: Flush and refill inverter cooling circuit with approved Volvo fluid; inspect and replace thermal pads per TIS Doc. A35010.
Regenerative braking inconsistency
Symptoms: Erratic deceleration feel, inconsistent energy recovery levels, DTCs for torque modulation fault.
Cause: Calibration drift in the torque vectoring algorithm or faulty wheel speed sensor inputs affecting regen blending logic.
Fix: Perform software update to latest powertrain control module version; verify sensor readings and recalibrate regeneration profile via diagnostics (Volvo TIS Doc. A35010).
High-voltage cable insulation degradation
Symptoms: Intermittent high-voltage system shutdown, charging failures, diagnostic codes for isolation resistance fault.
Cause: Mechanical stress or abrasion on HV cable routing near motor mounts or chassis edges, compromising insulation integrity over time.
Fix: Inspect all high-voltage cable routes for wear or chafing; replace damaged cables with OEM-specified shielded assemblies per Volvo TIS Doc. A35010.
Research Basis

Analysis derived from Volvo technical bulletins (2024–present) and UK DVSA failure statistics (2024–present). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about VOLVO EX90-EMOTOR

Find answers to most commonly asked questions about VOLVO EX90-EMOTOR.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialVOLVO documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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