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INFINITI Car Parts
Infiniti parts selection begins with chassis and platform provenance, not the Q or QX badge alone. Q30, Q50, QX60 and FX/QX70 cover unrelated structures, engines, gearboxes and electrical systems. Record the VIN, build month, market, chassis code, full engine or hybrid code, transmission, driven axles and brake/safety options, then confirm the label, connector and dimensions on the fitted component.
Many Infiniti models use Nissan-related engineering, while Q30/QX30 uses a Mercedes-derived compact architecture and selected powertrains. Neither relationship proves that a source-brand part will interchange. Mountings, calibration, wiring, cooling, brakes and option content can differ. Accept a cross-reference only when exact part numbers, supersessions, codes and physical interfaces support the individual vehicle.
Q50 applications can be petrol, diesel or hybrid according to market and year. QX60 generations may use a continuously variable transmission or a different automatic architecture. FX/QX70 variants add rear- or all-wheel drive, large brake/wheel options and performance suspension. Engine capacity or advertised output cannot establish injectors, timing parts, turbochargers, filters or control modules.
Use the exact engine-oil approval and viscosity, coolant chemistry and brake fluid. Manual, stepped automatic, dual-clutch and CVT units require their own lubricants, temperature and level methods. Transfer cases and front/rear differentials are separate again. Closely match tyre size, construction, wear and pressure where all-wheel drive relies on controlled coupling.
Hybrid vehicles add a traction battery, inverter, motor and dedicated cooling. Some Q50 variants also use option-specific electronic steering control, which must be identified before replacing racks, columns or modules. Brake discs/pads, suspension and wheel fitment depend on caliper, axle, option, load and driver-assistance sensor geometry.
Diagnose no-start, boost, CVT, AWD, steering or ADAS warnings with full-system scan data, loaded voltage tests and mechanical evidence. Restore shields, ducts, clips and grounds, then initialise steering, transmission, tyre-pressure and camera/radar systems as required. Fuel pressure, springs, brakes and high voltage need competent control. Do not drive with unpredictable steering/drive, brake faults, tyre damage, overheating, fuel leakage, red warnings or battery impact; repair or recover before UK road or MOT use.
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INFINITI Parts Catalogue Online
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Platform provenance is the first catalogue branch
Infiniti Q30/QX30, Q50, QX60 and FX/QX70 are not one scaled vehicle family. They originate from different compact, saloon and crossover architectures, with market-specific powertrains and electronic networks.
Capture VIN, chassis code, build month, engine, gearbox and driven axles. Add market and option data because an imported specification can use different lamps, emissions equipment, brakes or software.
Related engineering is evidence, not interchange approval
Much of the wider Infiniti range is Nissan-related, while the Q30/QX30 uses a Mercedes-derived architecture. Source-platform data can help identify systems, but Infiniti mountings, wiring, calibration, cooling and chassis specification may differ.
Require exact cross-reference or supersession evidence and compare the installed connector, dimensions and code. A familiar casting only proves the origin of a raw component, not the complete assembly's fit or software.
Build a traceable fitment file
| Evidence | What it establishes | What it leaves open |
|---|---|---|
| VIN/build/market | Original chassis, date and market equipment. | Later modification or replaced assemblies. |
| Engine/hybrid code | Fuel, timing, turbo and electrical family. | Ancillary revision within production. |
| Transmission label | CVT, automatic, dual clutch or manual unit. | Calibration and final-drive variation. |
| Driven-axle option | Rear/front drive, transfer and differential layout. | Ratio and coupling generation still need checking. |
| Brake/steering option | Caliper, disc and electronic steering configuration. | Retrofits may not match build data. |
| Part number/scan identity | Installed hardware and software revision. | Internal condition cannot be inferred. |
Q30 and QX30 require compact-platform detail
These applications can use engines, transmissions and electronics associated with their Mercedes-derived base, but body packaging, springs, dampers, brake options, software and exterior sensors still need Infiniti-specific proof. Do not search by source model alone.
Record complete engine and gearbox codes, emissions stage and front/all-wheel-drive configuration. Confirm filter housings, mounts and connectors physically before dismantling.
Q50 propulsion changes the steering and cooling context
Q50 variants include different petrol, diesel and hybrid systems by year and market. Turbo count, injection, cooling and exhaust equipment can vary. Hybrid versions add traction voltage and an electric motor integrated with the driveline.
Some configurations use option-specific electronic steering architecture rather than a simple conventional rack relationship. Identify steering option and controller data before selecting columns, racks or sensors.
Steering warnings are movement limits
If effort, response or directional control changes unexpectedly, stop safely. Test both low-voltage supplies, network communication, angle/torque data, mechanical joints and alignment. Do not attempt a public-road calibration with uncertain control.
QX60 transmission generation cannot be assumed
Depending on generation and market, QX60 can use a CVT or another stepped automatic design. They operate by different friction and hydraulic principles. The selector and number of displayed modes do not establish the unit.
Use the transmission code, approved fluid, temperature and fill sequence. CVT judder or ratio faults need cooler flow, pressure, pulley/belt condition and engine torque data; automatic shift faults need their own clutch, converter and valve-control evidence.
Powertrain branches need separate service decisions
| Branch | Parts identity | Diagnostic emphasis |
|---|---|---|
| Turbo petrol | Engine code, turbo arrangement, injection and cooling. | Air leaks, pressure, ignition and oil supply. |
| Diesel | Injection generation, turbo, EGR and DPF/SCR stage. | Fuel correction, boost, temperature and pressure. |
| Hybrid | Engine, motor, inverter, battery and gearbox. | Energy flow, isolation and cooling circuits. |
| CVT | Unit code, pulley/belt and specified fluid. | Temperature, pressure and ratio command. |
| Stepped automatic | Gearbox, converter, clutch packs and filter. | Fill state, adaptations and shift control. |
| All-wheel drive | Transfer/coupling, shafts and axle ratios. | Tyres, wheel speeds, oil and actuator command. |
Oil approval follows engine and emissions stage
Choose viscosity and named performance approval together. Turbo bearings, cam control and particulate filters can depend on additive chemistry. Fill by the stated capacity and electronic/dipstick level process.
Investigate low pressure, fuel dilution, repeated consumption or oil in charge pipes. A thicker oil or additive is not a substitute for testing the pickup, bearings, ventilation or turbo return.
Diesel aftertreatment faults should be followed upstream
DPF regeneration depends on coolant temperature, injection quality, boost and valid pressure/temperature sensors. SCR systems add dosing and NOx monitoring where fitted. One downstream code can begin with an engine fault.
Save soot estimate, regeneration and restart-limit data before clearing. Do not force regeneration with high oil level, fuel leakage or implausible temperatures. Required emissions hardware must remain present for UK road use.
High voltage adds a controlled boundary
Hybrid traction batteries and inverters retain dangerous energy after ignition-off. Appropriately trained personnel must follow the exact shutdown, secure the disconnect, observe the discharge period and prove absence of voltage before entering the system.
A 12-volt fault can prevent ready mode without making traction voltage safe. Battery impact, heat, water ingress, smell or smoke needs an exclusion area and specialist guidance. Do not charge or lift beneath a suspect enclosure.
AWD depends on ratios and tyre circumference
Transfer cases, controlled couplings and front/rear differentials differ by chassis. Confirm ratio and oil for each casing. A shaft that bolts in can still have the wrong length or flange geometry.
Match approved tyre size, make/model where required, wear and pressure. Measure circumference after a one-tyre replacement or an AWD warning. Continuous wheel-speed difference can overheat a coupling.
Brake packages are option and wheel dependent
FX/QX70 and performance Q50 variants can use larger calipers and discs. Diameter, thickness, height, ventilation, piston arrangement and wear lead all matter. Wheel diameter alone does not prove spoke clearance.
Clean the hub and measure run-out. Inspect hoses, sliders and parking brake. Use the specified fluid and diagnostic service mode/bleed routine where an electronic actuator is fitted.
Suspension parts carry body and drivetrain mass
Springs and dampers change with saloon/crossover body, engine, hybrid battery and AWD hardware. Adaptive damping adds controller, connector and calibration requirements. Match mounts and bump stops with the damper.
Tighten bonded bushes at defined ride height. Align all four wheels after arms, subframes, springs or steering work, then calibrate angle and driver-assistance sensors.
Electrical diagnosis begins with market and supply
Low battery voltage, poor grounds or water ingress can create steering, transmission, ABS and body warnings. Test voltage drop under load and retrieve the complete network map. Imported vehicles may contain lighting or alarm modifications that need separate documentation.
Controllers can require immobiliser, VIN, variant coding and software matching. A used unit with identical pins may not communicate securely. Preserve the original configuration and maintain support voltage during programming.
ADAS calibration requires correct brackets and geometry
Camera and radar aim can be changed by windscreen, grille, bumper, wheel-alignment or suspension work. Confirm glass and sensor bracket, restore ride height and thrust angle, then use the model-specific calibration process.
A clean fault memory is not an aim report
A sensor can communicate while misaligned. Keep the calibration result and verify assistance cautiously. Assume the function is unavailable while a warning remains.
Fault urgency follows loss of control
| Symptom | Evidence path | Use limit |
|---|---|---|
| Steering warning/change | Supplies, network, sensors, joints and alignment. | Stop if directional control is uncertain. |
| CVT/automatic warning | Fluid, temperature, pressure, adaptations and mounts. | Recover if engagement is unpredictable. |
| AWD binding | Tyres, ratios, wheel speeds, coupling and oils. | Avoid tight high-load operation. |
| Brake pull/low pedal | Leaks, friction, calipers, tyres and ABS data. | Do not road-test. |
| Hybrid battery warning | Impact, heat, isolation and trained diagnosis. | Do not charge or touch HV parts. |
| Oil/temperature warning | Level, pressure, circulation and leakage. | Stop the engine safely. |
Close the repair against the actual platform
- Record VIN, market, chassis, engine and gearbox codes.
- Confirm Infiniti-specific option and exact cross-reference evidence.
- Preserve faults, measurements, fluid state and tyre data.
- Control steering movement, fuel pressure and high voltage.
- Use exact lubricants, coolants, seals and locking hardware.
- Restore heat shields, ducts, undertrays, clips and grounds.
- Fill and bleed at the stated temperature and attitude.
- Initialise gearbox, steering, tyre and hybrid systems.
- Align the chassis before ADAS calibration.
- Verify progressively and reinspect for heat or leaks.
UK compliance may expose import differences
MOT condition includes lamps, tyres, brakes, steering, suspension, structure, visibility, restraints, emissions equipment and relevant warnings. Market-specific lighting or speed display conversions should remain compliant and securely wired.
Declare wheel, suspension and powertrain changes to the insurer. A test pass does not validate CVT fluid, steering calibration or high-voltage work.
Practical Infiniti parts FAQs
Q: Do Nissan-related parts automatically fit Infiniti?
A: No. Exact reference, option and calibration must agree.
Q: Does Mercedes-derived Q30 architecture prove interchange?
A: No. Verify Infiniti-specific hardware and software.
Q: Is every QX60 transmission a CVT?
A: No. Generation and market determine the unit.
Q: Can universal ATF be used in an Infiniti CVT?
A: No. Use the exact approved CVT fluid.
Q: Does a boost code prove turbo failure?
A: No. Test leaks, control, sensors and oil supply.
Q: Can one tyre trigger AWD stress?
A: Yes. Compare circumference, wear and pressure.
Q: Does Q50 always use conventional steering?
A: No. Identify its exact steering option.
Q: Can steering calibration repair mechanical play?
A: No. Joints and geometry must be sound first.
Q: Does 12-volt disconnection isolate a hybrid?
A: No. Follow the full high-voltage procedure.
Q: Can wheel diameter alone confirm brake clearance?
A: No. Offset and spoke profile also matter.
Q: Can a used control module work because plugs match?
A: No. Security, coding and software must agree.
Q: Is ADAS calibration only needed after collision?
A: No. Glass and chassis work can require it.
Q: Does MOT status prove import wiring is correct?
A: No. Inspect compliance and circuit protection separately.
Q: What confirms an Infiniti repair?
A: Correct platform evidence and stable, calibrated operation.
