Infiniti Car Parts UK - Quality Used & Genuine Parts

How to Replace Infiniti Headlights

Infiniti headlight replacement is straightforward on most models. Whether replacing standard halogen units or upgrading to LED or HID headlights, this guide covers Q50, Q60, QX60, QX80, and previous generation G37, FX, and M series models with similar procedures.

Step-by-Step Instructions:

1. Open the bonnet and secure it safely. Locate the rear of the headlight assembly from within the engine bay. On Q50 and Q60 sedans, the bonnet opens wide providing excellent access to headlight mountings. On QX60 and QX80 SUVs, the higher bonnet line offers good clearance. Previous generation G37, FX, and M series models have similarly accessible headlight mounting points. Infiniti vehicles are designed with practical maintenance access in mind.
2. Disconnect all electrical connectors. Infiniti headlights typically have 2-4 electrical connectors depending on specification and features. These include main beam, dipped beam, side light, and on models with adaptive headlights additional connectors for leveling motors and cornering lights. On Q50 models with LED headlights, expect additional connectors for LED driver modules. Press the release tabs on each connector carefully and pull straight out. Handle connectors gently as plastic clips can become brittle with age on older models.
3. Remove the headlight mounting bolts. Most Infiniti models use 10mm bolts to secure the headlight assembly. On Q50 and Q60 models, there are typically 3 bolts along the top edge easily accessible once the bonnet is open. On QX60 and QX80 SUVs, expect 3-4 mounting bolts with clear access from above. Previous generation G37 and FX models use similar mounting configurations. Remove all mounting bolts completely and keep them organized for refitting.
4. Release any additional clips or retainers. Some Infiniti headlights use supplementary plastic clips at various points for additional security. On Q50 and Q60 models, check for clips at the inner corner near the grille. On QX60 and QX80 models, look for clips at the bottom edge. Work carefully with plastic clips as they can become brittle on older vehicles, particularly on G37 and FX models from the late 2000s.
5. Carefully remove the headlight assembly. With all bolts and clips released, gently pull the headlight straight forward out of its mounting position. Infiniti headlights slide forward on locating pins that ensure correct alignment during installation. Support the weight as you pull to prevent dropping, particularly on larger QX80 headlight assemblies with heavy HID or LED components. If you feel resistance, stop and check for missed fixings rather than forcing.
6. Transfer components to new headlight if needed. If your replacement headlight doesn't include bulbs, ballasts for HID systems, or LED driver modules, carefully transfer these from the old unit. When handling HID bulbs, wear clean gloves and never touch the glass envelope as oils cause premature failure and hot spots. For LED headlights on newer Q50 and QX60 models, ensure all driver modules and heat sinks are included or transferred.
7. Install the new headlight assembly. Reverse the removal process by aligning the new headlight with mounting pins and push firmly into place ensuring all locating pins engage correctly. Refit all mounting bolts and tighten securely but don't overtighten as this can crack plastic mounting points. Reconnect all electrical connections ensuring each clicks firmly into place. Test all lighting functions before final assembly including dipped beam, main beam, side lights, and indicators. On models with adaptive headlights, verify cornering lights and auto-leveling functions work correctly.

Important Notes: Infiniti headlight replacement is straightforward due to practical design focused on ease of maintenance. When handling new headlights, never touch lens or reflector surfaces as this affects light output and appearance. On Q50 models with Direct Adaptive Steering, be careful not to disturb any steering system wiring near the headlight area. After fitting, check headlight alignment using adjustment screws located on the rear of the assembly. Proper alignment is crucial for optimal visibility and MOT compliance. On models with HID or LED headlights, some systems may require coding to the ECU to avoid warning lights.

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How to Replace Infiniti Front Bumper

Replacing an Infiniti front bumper is achievable in 45-75 minutes depending on model. This process covers Q50, Q60, QX60, QX80, and previous generation G37, FX, and M series models, though specific screw locations vary between generations and body styles.

Step-by-Step Instructions:

1. Open the bonnet and secure it with the prop rod. Locate the upper bumper mounting fixings along the top edge behind the grille area. Most Infiniti models have 6-8 bolts or screws securing the bumper from above. On Q50 and Q60 sedans, these are typically 10mm bolts easily accessed once you remove any plastic cover panels. On QX60 and QX80 SUVs, expect 8-10 fixings across the top including some hidden behind grille trim. Remove all upper fixings systematically and keep them organized by location.
2. Access the wheel arch areas on both sides. Turn the steering wheel fully to one side to maximize access to the wheel arch liner. Behind each front wheel, locate the plastic arch liner that protects the inner wing. Remove or release 3-5 plastic clips or screws securing the front section of the arch liner to expose side bumper mounting points. Infiniti typically uses plastic push-in clips that release by pressing the center pin first, then pulling the entire clip out. Some models also use Phillips screws. Repeat this process on both driver and passenger sides.
3. Remove the side mounting screws from both wheel arches. Behind each wheel arch liner, you'll find 3-4 screws or bolts securing each side of the bumper to the chassis. These are usually 10mm bolts on most Infiniti models. Remove all side fixings on both driver and passenger sides. On G37 and Q50 models, these fixings are straightforward to access. On QX80 models, some fixings may be recessed requiring socket extensions. Keep track of which fixings came from which side if they differ in length or type.
4. Remove undertray screws and lower bumper fixings. Get underneath the vehicle safely using ramps or jack stands. Locate and remove all screws and clips securing the engine undertray and lower edge of the bumper. Infiniti typically uses 8-12 fixings along the bottom edge. These may be 10mm bolts or plastic push-in clips similar to those in the wheel arches. On performance models like Q50 Red Sport, there may be additional aerodynamic undertray panels to remove first.
5. Disconnect fog lights, sensors, and electrical connections. Reach behind the bumper and disconnect all electrical connectors including fog lights if fitted, parking sensor connections if equipped with parking assist (standard on most newer Infiniti models), radar sensor connections on models with adaptive cruise control, and any additional connections for cameras on QX60 and QX80 models with 360-degree camera systems. Press release tabs carefully and pull straight out. Count how many connections you disconnect to ensure you reconnect them all during refitting.
6. Release the bumper side clips and mounting tabs. Infiniti bumpers are secured by plastic clips or metal brackets on each side that slot into the wing panels and chassis rails. With all fixings removed, firmly but gently pull the bumper forward from one corner while supporting the opposite side. You may need to wiggle slightly to release the clips from their mounting points. Listen for clicks as clips disengage. On Q50 and Q60 models, the bumper should release relatively easily once all fixings are removed.
7. Remove the bumper completely from the vehicle. With all fixings removed and clips released, carefully pull the bumper straight forward away from the vehicle. Sedan bumpers on Q50, Q60, and G37 are reasonably lightweight and manageable for one person. QX60 and QX80 bumpers are bulkier and heavier, benefiting from a second person to avoid dropping. Place the removed bumper on a protected surface to avoid scratching the painted surface or damaging integrated components like fog lights.
8. Prepare and fit the replacement bumper assembly. Before installation, transfer any brackets, trim pieces, fog light assemblies, parking sensor modules, or number plate mounts from the old bumper if not fitted to your replacement. On models with radar adaptive cruise control sensors, these must be transferred carefully and may require recalibration after installation. Align the new bumper with mounting points and push firmly into place ensuring all side clips engage properly with the wing mounting points. Reconnect all electrical connections including fog lights, parking sensors, and radar sensors. Systematically secure with all screws, bolts, and clips in reverse order of removal. Test all electrical functions including fog lights, parking sensors, and camera systems before final assembly. Check panel gaps are even on both sides and bumper sits flush with wings and grille.

Top Tips: Infiniti bumpers are designed for practical replacement reflecting the brand's focus on premium quality and ease of service. When refitting parking sensors on Q50, QX60, and QX80 models, ensure each clicks firmly into its mounting hole and is correctly aligned flush with the bumper surface. On models with front-mounted radar for adaptive cruise control, these may require recalibration at an Infiniti specialist after bumper replacement to ensure proper functionality. Check all panel gaps between bumper and wings are even before final tightening. Infiniti's manufacturing tolerances mean replacement parts typically fit well without extensive adjustment. On G37 and older models, inspect bumper mounting brackets for corrosion or damage before fitting new bumper.

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Common Infiniti Parts Problems & Solutions

Infiniti vehicles are known for powerful engines and luxury features. The Q50 has a RepairPal reliability rating of 4.0 out of 5.0, ranking 10th out of 31 luxury midsize cars with average annual repair costs of $648 versus $739 luxury average. The QX60 scores 3.5 out of 5.0, ranking 2nd out of 19 luxury fullsize SUVs with costs of $639 versus $1,127 luxury SUV average. However, certain model years and components can experience specific issues. Here are the most commonly reported Infiniti parts problems based on verified data from UK owners, mechanics, RepairPal, and industry specialists.

Warped Brake Rotors (2014-2016 Q50) - Most Common Issue:

• Widespread Problem on Early Q50 Models: Premature brake rotor warping is the most commonly reported issue affecting 2014-2016 Q50 models, making these the worst Infiniti Q50 years to avoid. Frustrated owners report warped brake rotors causing vibration, groaning noises, and pulsating brake pedals as early as 4,500-30,000 miles, with some examples requiring brake pad replacement in less than 5,000-20,000 miles. The 2014 Q50 received 21 complaints on CarComplaints.com with warped brakes as the most common issue. This is particularly frustrating as it's a low-mileage problem affecting even gently driven vehicles.
• Symptoms and Consequences: Vibration or shuddering when coming to a stop indicating metal-on-metal contact, loud groaning or squeaking noises sounding like a rusty swing set according to owner descriptions, excessive vibrations felt through the steering wheel and brake pedal, visible grooves in the rotor surface from uneven pad contact, and pulsating brake pedal particularly at highway speeds. Continuing to drive with warped rotors accelerates brake pad wear and can damage calipers, leading to more expensive repairs. The issue affects both standard and sport brake configurations.
• Root Cause: The problem stems from brake rotor design or material quality on early Q50 models. Owners report rotors warping even with minimal stop-and-go driving or aggressive braking, suggesting a manufacturing or design defect rather than driver-induced wear. Some rotors were machined twice attempting to correct warping before ultimately requiring replacement. The issue is severe enough that many owners consider it a design flaw requiring Infiniti to address.
• Solution and Prevention: Replacement with upgraded aftermarket brake rotors and quality brake pads often resolves the issue permanently. Never sacrifice quality to save money on brake components as cheap brake pads accelerate rotor warping. When replacing rotors, always replace pads simultaneously and use high-quality components. Some owners report success with upgraded performance brake packages. If purchasing a 2014-2016 Q50, thoroughly inspect brake condition and factor potential brake replacement into purchase price. Later Q50 models from 2019+ have fewer reported brake issues suggesting Infiniti addressed the problem.

Direct Adaptive Steering Failures (2014-2016 Q50) - Safety Critical:

• Steer-By-Wire System Problems: The Q50 introduced Infiniti's ambitious Direct Adaptive Steering system, an entirely electronic steer-by-wire setup with no direct mechanical connection between the steering wheel and front wheels. While innovative, this system quickly became one of the Q50's biggest reliability complaints. Drivers of 2014-2016 models report inconsistent steering response, loss of feedback, sudden stiffness while driving, steering wheel locking up when turning, steering pulling hard to one side after startup, and complete loss of steering control in some cases. In rare circumstances, the steering would temporarily lock or fail to respond until the car was restarted.
• Recall and Software Updates: Nissan recalled 60,000 Q50 sedans to fix steering problems by reprogramming the steering ECU software. Multiple recalls were issued including NHTSA campaigns 16V-244, 16V-207, and 13V588000 to address steering malfunctions. The recalls involved software updates to correct ECU malfunctions that could cause lack of steering responsiveness and changes in turning radius under certain rare circumstances. The second recall affected some 2014 models so severely that Nissan arranged for vehicles to be towed to dealers for repair.
• Ongoing Issues: Despite recalls, some owners continue reporting steering problems suggesting the software updates don't completely resolve underlying issues. The electronic steering system can malfunction when temperatures drop, disabling the electronic power steering system. Steering can feel off or unpredictable even after repairs, with reduced responsiveness and altered turning radius. Some owners describe the driving experience as feeling like playing a video game with lag due to the lack of direct mechanical connection.
• Solution and Verification: Any 2014-2016 Q50 under consideration should have documentation showing all steering recall repairs were completed. Thoroughly test drive the vehicle paying close attention to steering feel, responsiveness, and any unusual behavior particularly during tight turns and at startup. If purchasing an affected model, consider extended warranty coverage specifically including steering system components. The Direct Adaptive Steering system remains controversial among enthusiasts who prefer traditional mechanical steering connections. Later Q50 models from 2019+ are considered more reliable as software matured.

Turbocharger Failures (VR30 3.0T Engine - 2016+ Q50/Q60):

• Premature Turbo Seal Failures: The VR30 twin-turbo 3.0-litre engine introduced in 2016+ Q50 and Q60 models experiences premature turbocharger failures due to improperly manufactured tolerances in the CHRA (Center Housing Rotating Assembly) section of the turbo. The problem is severe enough that many owners consider it should have been a mandatory recall. Turbo failures affect both standard 300hp versions and Red Sport 400 variants with higher boost pressure. The issue typically appears around 50,000-70,000 miles but can occur earlier.
• Symptoms and Warning Signs: Squealing or whistling noise under load starting around 2,000 RPM indicating turbo bearing wear, oil consumption increasing as turbo seals leak, blue or white smoke from exhaust particularly under acceleration showing oil burning, loss of power and boost pressure as turbos fail, check engine light with turbo-related fault codes, and rattling sounds from turbo area when cold starting. Once symptoms appear, turbo replacement is typically required within a few thousand miles to prevent catastrophic failure and engine damage from oil starvation or contamination.
• Root Cause and Updates: The tolerances on the CHRA section were improperly manufactured by the turbo supplier, causing oil to leak past seals. Infiniti has issued multiple turbo updates attempting to resolve the issue, with newer turbos eliminating EGT (Exhaust Gas Temperature) sensors and requiring ECU software updates to account for the changes. The problem isn't related to oil drain issues, piston blowby, or crankcase pressure as swapping to updated turbos resolves the issue, confirming the turbo design itself was flawed.
• Repair Costs and Coverage: Turbo replacement requires approximately 11 hours of labor plus around £2,000 for turbo components, gaskets, and related parts, totaling £3,000-£5,000 per turbo. Many failures occur just outside the 5-year powertrain warranty period, leaving owners with expensive repairs. Some owners successfully argue for goodwill coverage from Infiniti given the widespread nature of the problem. When one turbo fails, strongly consider replacing both turbos simultaneously as the second turbo is likely to fail shortly given identical manufacturing and usage, and the labor overlaps significantly. Preventative turbo replacement isn't typically covered under warranty.
• Prevention: Use high-quality synthetic oil and change at 5,000-mile intervals rather than extending to Infiniti's recommended intervals. Avoid hot stopping (shutting off immediately after hard driving) as turbos need time to cool down with oil circulation. Allow the engine to idle for 1-2 minutes after spirited driving before shutting off. Regular oil analysis can detect early turbo bearing wear before catastrophic failure. When buying used Q50 or Q60 with VR30 engine, verify turbo condition and factor replacement cost into purchase price if mileage is approaching 50,000+ miles without turbo replacement documentation.

Master Cylinder Failure (2014-2016 Q50):

• Premature Master Cylinder Seal Deterioration: Master cylinders installed in 2014-2016 Q50 models tend to fail around 100,000 miles, though failures can occur at lower mileage. The master cylinder converts foot pressure into hydraulic pressure through the brake pedal, and seal deterioration causes internal leaking that worsens over time. Symptoms include spongy brake pedal feel indicating air in the system, longer than usual stopping distances increasing collision risk, brake pedal sinking slowly to floor when holding constant pressure, and reduced braking effectiveness particularly in emergency situations.
• Safety Implications: A malfunctioning braking system is a critical safety hazard. You should no longer drive your vehicle until the issue is professionally repaired. The combination of warped rotors and master cylinder issues on early Q50 models creates compounding braking problems that significantly compromise safety. Expect stopping distances to be noticeably longer than usual, which dramatically increases the likelihood of rear-end collisions particularly in emergency braking situations.
• Solution: The only solution is complete master cylinder replacement, typically costing £400-£800 including parts and labor. This is a straightforward repair for qualified mechanics but requires proper brake system bleeding afterwards to remove all air. After replacement, brake pedal feel should return to firm and responsive. Many owners report this problem after surpassing 100,000 miles, but it can occur earlier on higher-usage vehicles. When buying used Q50 from affected years, test brake pedal feel thoroughly and factor master cylinder replacement into purchase price if mileage is approaching 80,000+ miles.

Head Gasket Failures (2017 Q50 Red Sport 400):

• Expensive Engine Failures: The 2017 Q50, particularly Red Sport 400 and other high-performance variants, introduced costly head gasket and main bearing failures. CarComplaints.com ranks head gasket failure as the second worst issue for 2017 Q50s. The VR30 twin-turbo engine, which should have been the car's strongest selling point, became its biggest liability in 2017. Repair bills around £7,500 are common for blown head gaskets and related main bearing failures, making 2017 one of the worst Infiniti Q50 years to avoid.
• Symptoms: Coolant consumption without visible leaks indicating head gasket breach, white smoke from exhaust particularly when cold, overheating issues, milky oil appearance on dipstick showing coolant contamination, rough idle and misfires, and loss of coolant from expansion tank. Head gasket failures require complete engine disassembly, cylinder head machining or replacement, and extensive gasket replacement throughout the engine.
• Prevention: Maintain cooling system properly with regular coolant changes using Infiniti-approved coolant. Avoid overheating by monitoring temperature gauge carefully. Don't tune or modify boost pressure beyond factory specifications as this stresses head gaskets. The 2017 model year seems particularly affected, suggesting a manufacturing or design issue specific to that year. Later 2019-2022 Q50 models have fewer reported head gasket issues.

Premature Tire Wear (2015 Q50):

• Accelerated Tire Degradation: The 2015 Q50 experienced premature tire wear with owners reporting going through 5 tires in 2 years even on vehicles without aggressive driving. This was particularly frustrating occurring around 12,100 miles on some vehicles. Owners report tires cannot handle potholes or road imperfections that other vehicles manage without issue, suggesting suspension geometry or tire specification problems.
• Solution: Regular wheel alignment checks every 6-12 months help minimize uneven wear. Use quality tires rated for the Q50's performance capabilities and weight. Monitor tire pressures weekly and maintain proper inflation. Rotate tires every 5,000-7,000 miles to distribute wear evenly. Some cases were covered under warranty when caught early, so document excessive wear and present to dealer if within warranty period.

Infiniti Reliability Assessment:

Overall Good Reliability with Model-Specific Issues: Infiniti's reliability is generally good with the Q50 scoring 4.0 out of 5.0 on RepairPal (10th out of 31 luxury midsize cars) and QX60 scoring 3.5 out of 5.0 (2nd out of 19 luxury fullsize SUVs). Average repair costs are reasonable at $648 annually for Q50 versus $739 luxury average, and $639 for QX60 versus $1,127 luxury SUV average. Both models have lower severe repair rates than segment averages. With proper maintenance, Infiniti vehicles can easily reach 200,000-250,000 miles.

Avoid Early Q50 Models: The worst Infiniti Q50 years to avoid are 2014, 2015, and 2017 due to warped brakes, steering malfunctions, turbo failures, and head gasket issues. The best Infiniti Q50 years are 2019-2022 offering refined performance and improved reliability after issues were addressed. Post-2019 models received equipment updates and ironed out early problems. The Q50 was discontinued after 2024 with no replacement, marking the end of Infiniti's sedan lineup alongside the Q60 which ended in 2022.

Prevention and Maintenance: To maximize Infiniti reliability, have all recalls completed with documentation particularly steering recalls on 2014-2016 Q50 models. Replace brake rotors and pads with quality components on early Q50s at first sign of warping. Change oil every 5,000 miles on VR30 turbo engines using quality synthetic oil. Allow turbos to cool before shutting off after spirited driving. Monitor brake system for spongy pedal indicating master cylinder issues. Test drive thoroughly checking steering feel and brake operation. When buying used, prioritize 2019+ Q50 models or QX60/QX80 SUVs which have fewer reported problems. Despite model-specific issues, Infiniti remains a reliable luxury brand with powerful engines and premium features when properly maintained.

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