McLaren Car Parts UK - Quality Used & Genuine Parts

How to Replace McLaren Headlights

McLaren headlight replacement is relatively straightforward despite the car's exotic nature. Whether replacing standard units or upgrading to different specifications, this guide covers 12C, 570S, 650S, 720S, and newer models with LED or adaptive lighting systems.

Step-by-Step Instructions:

1. Open the front luggage compartment and secure it safely. McLaren's front trunk provides excellent access to headlight mounting points. On 570S and 720S models, the frunk is spacious enough to work comfortably. Locate the rear of the headlight assembly from within the front compartment area. The carbon fiber MonoCell chassis design means headlight access is cleaner than traditional supercars with fewer obstructions.
2. Disconnect all electrical connectors from the headlight. McLaren headlights typically have 2-3 electrical connectors depending on specification. These include main lighting circuits, DRL (daytime running lights), and on adaptive lighting models additional connectors for leveling motors and adaptive systems. Press the release tabs carefully and pull straight out. On 720S models with adaptive LED headlights, there may be additional connectors for the active lighting control module. Handle all connectors gently as replacement electrical components can be expensive.
3. Remove the headlight mounting bolts and fixings. Most McLaren models use Torx screws to secure the headlight assembly. On 12C and 650S models, there are typically 3-4 bolts accessible from the top once connectors are removed. On 570S models, expect 3-4 mounting points with clear access. On 720S and newer models, the mounting system is similar but may include additional clips. Remove all mounting bolts completely and keep them organized as some may be different lengths. McLaren uses high-quality fasteners that should be reused if in good condition.
4. Release any additional retaining clips or brackets. Some McLaren headlights use supplementary plastic clips or metal brackets for additional security beyond the main mounting bolts. On 12C models, check for clips at the inner corner near the center of the car. On newer models, look for spring clips that need to be compressed before the headlight can be withdrawn. Work methodically as clips can become brittle with age especially on early 12C models.
5. Carefully withdraw the headlight assembly from its housing. With all bolts and clips released, gently pull the headlight straight forward out of its mounting position. McLaren headlights have locating pins and guides that ensure correct alignment during installation. Support the weight of the assembly as you pull to prevent dropping. The carbon fiber bodywork around headlights is strong but expensive to repair if damaged. If you feel resistance, stop and check for missed fixings rather than forcing. McLaren's build quality means parts should fit precisely without excessive force.
6. Transfer components to new headlight if required. If your replacement headlight doesn't include bulbs, adaptive lighting modules, or DRL units, carefully transfer these from the old unit. When handling bulbs, wear clean gloves to avoid touching glass surfaces with bare hands as skin oils cause premature failure and hotspots. On adaptive lighting systems, transfer the electronic control modules carefully, noting their orientation and ensuring seals remain intact. McLaren uses premium Philips or Osram bulbs that should be reused if still functioning properly.
7. Install the new headlight assembly and secure properly. Reverse the removal process by aligning the new headlight with mounting pins and locating guides, then push firmly into place ensuring all alignment features engage correctly. Refit all mounting bolts and tighten securely but not excessively as overtightening can crack mounting tabs. Reconnect all electrical connections ensuring each clicks firmly into place with no gaps. Test all lighting functions before final assembly including dipped beam, main beam, DRLs, indicators, and adaptive systems if fitted. Check headlight alignment using adjustment screws on the rear of the assembly. McLaren headlights are designed for easy adjustment to ensure proper beam pattern and MOT compliance.

Important Notes: McLaren headlight replacement is achievable for competent DIY enthusiasts. When handling new headlights, never touch lens or reflector surfaces as fingerprints affect light output. Adaptive LED headlights may require coding to the vehicle's ECU to avoid warning lights on the dashboard. Always check headlight alignment after fitting as improper alignment affects visibility and can fail MOT testing. McLaren uses premium lighting components that provide excellent illumination when properly aligned. If replacing early 12C headlights with updated units, verify electrical compatibility as some revisions differ.

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How to Replace McLaren Front Bumper

Replacing a McLaren front bumper requires careful attention due to the car's carbon fiber construction and integrated aerodynamics. This process covers 12C, 570S, 650S, 720S, and similar models, though specific mounting points vary between generations. Allow 60-120 minutes depending on model complexity.

Step-by-Step Instructions:

1. Open the front luggage compartment and prepare the vehicle. Ensure the car is on level ground with the parking brake engaged. Open the frunk to access the upper bumper mounting points. McLaren's front compartment design provides excellent access to fixings. Locate all upper mounting bolts along the top edge of the bumper assembly. Most McLaren models have 6-8 Torx bolts securing the upper section. On 12C and 650S models, these are typically T25 Torx. On 720S and newer models, expect T30 fixings. Remove all upper bolts systematically and keep them organized by location.
2. Safely raise the vehicle to access undertray fixings. Use a quality jack at the designated jacking points indicated in the owner's manual. McLaren's carbon MonoCell chassis has specific jacking points that must be used to avoid damage. Support the vehicle securely on axle stands rated for the car's weight. Never work under a car supported only by a jack. Once safely raised, locate the engine undertray and lower bumper mounting points. The undertray protects vital components and provides aerodynamic benefits.
3. Remove undertray screws and lower bumper fixings. Locate all screws and clips securing the undertray and lower edge of the bumper. McLaren typically uses 8-15 fixings along the bottom edge depending on model. These may be Torx screws, plastic push-clips, or quick-release fasteners. On 12C models, the undertray is secured with multiple Torx screws. On 720S models, a combination of screws and clips is used. You may need to partially lower the undertray rather than removing it completely. Work methodically to avoid losing small fasteners. Keep all undertray fixings separate from bumper fixings to avoid confusion during reassembly.
4. Access and remove wheel arch liner fixings. Turn the steering wheel fully to one side to maximize access to the wheel arch. Behind each front wheel, locate the plastic arch liner that overlaps with the bumper. Remove or release 3-5 plastic clips or screws securing the front section of the arch liner. McLaren uses plastic push-in clips that release by pressing the center pin first. Some models have additional Torx screws. Once released, gently pull the arch liner away from the bumper to expose side mounting points. Repeat this process on both driver and passenger sides. The arch liners protect against stone damage and should be handled carefully.
5. Disconnect fog lights, sensors, and electrical connections. Reach behind the bumper and disconnect all electrical connectors. This includes fog lights if fitted, parking sensor connections if equipped with parking assistance, cameras on models with front camera systems, and any additional wiring for active aerodynamic components. Press release tabs carefully and pull straight out. Count how many connections you disconnect to ensure you reconnect them all during refitting. On 720S and Artura models with advanced camera systems, there may be multiple high-resolution camera connections. Label connections if necessary to avoid confusion.
6. Remove side mounting bolts from wheel arch areas. Behind each wheel arch liner, you'll find 2-4 bolts or screws securing each side of the bumper to the chassis. These mounting points are critical for bumper stability. Remove all side fixings on both driver and passenger sides. McLaren uses high-strength fixings that should be kept for reuse. On some models, there are also push-clips that need to be released by pressing the center before withdrawing. Work carefully as these clips can break if forced.
7. Release bumper mounting clips and withdraw the assembly. With all fixings removed, the bumper is held by plastic clips or brackets that slot into the chassis and wing panels. Starting from one corner, firmly but gently pull the bumper forward while supporting the opposite side. Listen for clicks as clips disengage. McLaren bumpers have precise locating features that may require slight wiggling to release. The carbon fiber components are strong but can crack if forced incorrectly. If you feel excessive resistance, recheck for missed fixings. Once all clips are released, carefully withdraw the bumper straight forward away from the vehicle. McLaren front bumpers are surprisingly lightweight due to carbon fiber construction but are large and benefit from a second person during removal.
8. Prepare and install the replacement bumper assembly. Before installation, transfer any brackets, trim pieces, or components from the old bumper if not fitted to your replacement. Check that all mounting points on the new bumper are intact and clips are not damaged. Align the new bumper with mounting points on the vehicle and push firmly into place ensuring all locating pins and side clips engage properly. You should hear distinct clicks as clips engage. Systematically secure the bumper with all bolts and screws in reverse order of removal. Reconnect all electrical connections including fog lights, sensors, and cameras ensuring each clicks firmly. Refit wheel arch liners and secure with all clips and screws. Reattach the undertray and tighten all fixings. Lower the vehicle safely and complete final checks. Test all electrical functions including fog lights and parking sensors. Check panel gaps between bumper and wings are even on both sides before final tightening. McLaren's manufacturing tolerances mean replacement parts typically fit precisely without adjustment.

Top Tips: McLaren bumpers integrate complex aerodynamics and often include active aero components. When refitting parking sensors, ensure each clicks firmly into its mounting hole and is correctly aligned flush with the bumper surface. On models with front-mounted cameras or radar for adaptive cruise control, these may require recalibration at a McLaren specialist after bumper replacement. Check all panel gaps between bumper and adjacent body panels are even before final tightening. McLaren's precision engineering means parts should align naturally without forcing. The carbon fiber splitter on the bottom of the bumper is fragile and easily damaged. Use caution when handling and consider installing protective film on vulnerable areas. If your McLaren has active aerodynamic systems, verify all electrical connections are secure as faults can trigger warning lights.

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Common McLaren Parts Problems & Solutions

McLaren vehicles represent cutting-edge automotive engineering with Formula One technology transfer and advanced materials. While many owners report excellent reliability with proper maintenance, certain components can experience specific issues. Here are the most commonly reported McLaren parts problems based on verified data from UK owners, mechanics, and industry specialists.

Hydraulic Suspension System Failures (Most Common Issue):

• Affected Models: All McLaren models equipped with Proactive Chassis Control hydraulic suspension including MP4-12C, 650S, 675LT, 720S, 765LT, GT, and related variants. The 570S and 540C use conventional steel spring suspension avoiding these issues entirely, making them the most reliable McLaren models for daily use. McLaren's Proactive Chassis Control system uses hydraulic fluid rather than traditional springs and dampers to control ride height, body roll, and handling dynamically. This sophisticated system requires high-pressure hydraulic fluid managed by suspension accumulators at each corner of the vehicle.
• Suspension Accumulator Failures: The suspension accumulator is the most problematic component in McLaren's hydraulic system. These accumulators contain an internal rubber diaphragm that separates pressurized nitrogen gas from hydraulic fluid. Over time, the rubber diaphragm degrades, punctures, or tears, allowing gas and fluid to mix. This causes complete loss of suspension function at the affected corner. Multiple forum threads document accumulator failures on 720S models with as few as 3,000 miles, though failures typically occur between 10,000-40,000 miles depending on driving conditions and climate. When accumulators fail, symptoms include suspension failure warning light on dashboard, vehicle sagging to one side especially after being parked, excessively harsh ride quality as the system cannot absorb bumps properly, and inability to change suspension settings between Normal, Sport, and Track modes. Replacement requires all four accumulators to be changed simultaneously as recommended by McLaren specialists. Parts availability has been problematic with waiting times of 6 weeks or more reported by UK owners. One owner reported their 2018 720S required all four accumulators replaced under warranty, noting the ride quality was "completely and utterly transformed" after replacement, indicating the degradation had been gradual. Repair costs outside warranty can reach £3,000-£5,000 for parts and labor including hydraulic system bleeding and recalibration.
• Hydraulic Leaks (Seals and Hoses): The hydraulic suspension and braking systems rely on high-pressure fluid circulating through hoses, lines, seals, and O-rings. Over time, these components degrade due to heat exposure, age, and pressure cycles, leading to fluid leaks. Leaks can be external, leaving visible puddles or oily residue under the vehicle, or internal within components causing pressure loss without obvious signs. Symptoms include puddles of hydraulic fluid beneath the car, vehicle ride height sagging or lowering unevenly when parked, suspension fault warnings on the dashboard, decrease in braking efficiency or spongy brake pedal feel, and unusual whining or groaning noises from the hydraulic pump working harder to maintain pressure. The APMU (Active Proactive Control Management Unit) manages hydraulic pressure distribution. If failed accumulator diaphragms shed rubber particles, these particles can circulate through the system and block APMU valves, causing complete system failure requiring APMU replacement. Hydraulic system repairs require specialized knowledge and equipment. Independent specialists can often diagnose and repair hydraulic leaks for £800-£2,500 depending on severity, while main dealers charge considerably more.
• Worn Suspension Components: Beyond hydraulic issues, traditional wear items like bushings, ball joints, and control arms also degrade over time especially on track-driven McLarens. Symptoms include clunking, rattling, or squeaking noises over bumps, uneven or premature tire wear, spongy steering feel, excessive bounciness, and improper ride height. Aggressive driving, track use, and UK road conditions with potholes accelerate suspension component wear. Regular suspension inspections during service intervals catch worn components before they cause handling degradation or safety concerns.

IRIS Infotainment System Problems (Common on 12C):

• Early IRIS System Failures: The IRIS (Integrated Redefining Infotainment System) in early MP4-12C models from 2011-2013 suffered from numerous reliability issues. Based on Android operating system, early IRIS 1 units were plagued with software bugs, unresponsive touchscreens, system freezes and boot loops, and poor GPS reception. McLaren released IRIS 2 as a hardware upgrade costing approximately £4,000 that significantly improved stability and responsiveness. Most 12C models have been updated to IRIS 2 through warranty work or subsequent owner upgrades. Even IRIS 2 systems can be slow and laggy compared to modern infotainment standards, though functionality is adequate for navigation and audio control.
• Touchscreen and Display Issues: Common IRIS problems include completely black or blank screen on startup, touchscreen becoming unresponsive to commands, system freezing requiring restart, audio cutting in and out or failing entirely, and Bluetooth and GPS connectivity failures. Climate control functions are partially controlled through IRIS, so system failures can affect cabin temperature control. Replacing the IRIS system or fixing LCD screen failures costs £500-£1,000. Often a simple restart by turning the car off and leaving it off for several minutes allows the system to reset and function normally. McLaren has released numerous software updates to address IRIS bugs. Ensuring the car has the latest software version minimizes problems. Later McLaren models like 570S, 720S, and Artura have improved infotainment systems but still lack modern features like Apple CarPlay and Android Auto.

Brake System Recalls (Safety Critical):

• 2025 Brake Line Recall: McLaren issued a significant safety recall in 2025 affecting certain 2020-2025 models including 600LT, 720S, Artura, GT, and GTS. An assembly error caused rear brake lines to be incorrectly routed and connected to the wrong sides of the ABS control module. This could confuse the anti-lock braking system and electronic stability program, potentially causing a rear wheel to lock up unexpectedly during hard braking or stability control intervention. This creates a crash risk especially during emergency braking or cornering. Owners of affected vehicles should contact McLaren dealers immediately to determine if their car is included in the recall. Repairs involve correctly routing brake lines and are performed free of charge.
• 2021 Brake Banjo Bolt Recall: An earlier recall in 2021 involved specific 2019-2020 models including 570S, GT, 600LT, and 720S. A manufacturing defect resulted in a missing hole in a brake banjo bolt, which could lead to complete loss of braking function at one corner of the vehicle. This obviously represents an extreme safety hazard. Affected vehicles received replacement banjo bolts under recall. If you own an affected model year, verify the recall work has been completed by checking service records.

12V Battery Drain (720S and Other Models):

• Battery Discharge Problems: The 720S and other McLaren models rely heavily on electronics and can experience rapid 12V battery drain if the car is not used regularly. The complex electronic systems draw power even when the car is off, and the battery can discharge in as little as a week of inactivity. Symptoms include car failing to start, electrical systems not functioning, and dashboard warnings about low battery voltage. Using a quality battery tender or trickle charger is essential for McLarens that are not driven daily. Connect the charger whenever the car will sit for more than a few days. Some owners report needing to replace batteries frequently if the car sits unused. When storing a McLaren long-term, disconnect the battery or use a maintenance charger to prevent complete discharge.

Door Sensor and Mechanism Failures:

• Door Opening Problems: McLaren's dihedral doors use small electronic sensors to control the opening mechanism. These sensors can fail in wet or cold conditions, preventing doors from opening. This is particularly frustrating in rain when you need to access the vehicle. Symptoms include doors not responding to handle pulls, door sensors not detecting presence, and complete failure to open requiring manual emergency release. Door sensor problems require recalibration or replacement costing £300-£700. Some 570S owners report soft-close door mechanisms failing, though these are separate from the opening sensors. Protecting door mechanisms from water ingress and keeping drain holes clear helps prevent sensor failures.

Air Conditioning and Climate Control Issues:

• AC System Failures: The air conditioning system in 12C and other models can experience radiator failures and compressor problems resulting in the system blowing hot air instead of cold. Climate control LCD displays can also malfunction on early 12C models, though most were fixed under warranty. AC repairs typically involve replacing the compressor, condenser, or related components costing £800-£2,000 depending on the specific fault. Regular AC system maintenance including refrigerant level checks helps prevent failures. If your McLaren's AC stops cooling effectively, have it diagnosed promptly as continued operation with low refrigerant can damage the compressor.

Windscreen and Glass Issues (Early 12C):

• Cracked Windscreens: Early MP4-12C models from 2011-2012 experienced higher rates of windscreen cracking. Some windscreens were manufactured with excessive internal stress making them prone to cracking from minor impacts or temperature changes. McLaren replaced affected windscreens under warranty. Later production windscreens do not experience the same issues. Windscreen replacement on McLarens requires specialized knowledge due to the complex curves and bonding required. Costs for replacement range from £800-£1,500 depending on whether sensors or heating elements are integrated.

Carbon Ceramic Brake Wear and Costs:

• Expensive Brake Consumables: McLarens come standard with carbon ceramic brakes that provide exceptional stopping power and last significantly longer than conventional brakes. However, when they do require replacement, costs are substantial. Carbon ceramic brake discs can cost £1,500-£3,000 per corner, with a complete set of four discs costing £6,000-£12,000. Brake pads are also expensive at £400-£800 per set. Normal road driving sees carbon ceramic brakes lasting 60,000-100,000 miles. However, aggressive driving or frequent track use dramatically reduces lifespan. Carbon ceramic brakes require proper bedding-in procedures and should not be used when cold for maximum performance. If you drive your McLaren on track regularly, budget for brake replacement every 15,000-30,000 miles depending on intensity.

High-Performance Tire Costs:

• Tire Replacement Expenses: McLaren supercars use bespoke high-performance tires from Pirelli, Michelin, or other premium manufacturers. Rear tires on powerful models like 720S can wear in 5,000-8,000 miles with spirited driving. Front tires last approximately twice as long. A complete set of tires costs £1,200-£2,000 depending on model and tire choice. Track use consumes tires extremely rapidly. Budget for tire replacement as a regular maintenance item. Proper tire pressure monitoring and rotation extends tire life. Always replace tires in axle pairs to maintain balanced handling.

Paint Protection and Stone Chips:

• Vulnerable Paintwork: McLaren's low nose and aggressive aerodynamics mean the front bumper, splitter, and leading edges are highly vulnerable to stone chips and road debris damage. The carbon fiber bodywork is strong but expensive to repair. Paint protection film (PPF) or ceramic coating on vulnerable areas is a smart investment for new buyers. Protecting the front bumper, bonnet, wing mirrors, and lower sills costs £1,500-£3,000 but prevents paint damage worth thousands to repair. Touch-up paint for minor chips should be addressed promptly to prevent corrosion on exposed carbon fiber edges.

McLaren Reliability Assessment:

Mixed but Improving Reputation: McLaren has long faced reputation challenges regarding reliability, with internet forums amplifying individual problem cases into perceived widespread issues. However, data from actual McLaren owners paints a more positive picture. ConsumerAffairs notes that while McLaren has a reputation for being less reliable than Ferrari or Lamborghini, actual owners frequently dispute this. One supercar blogger who owned 10 McLarens over a decade stated "none have ever left us stranded and they have been by far the most reliable cars we have owned over the past couple of decades." Foreign Affairs Motorwerks concludes "there is really little difference between the reliability of a well maintained McLaren versus any other performance marque." Annual service costs range from £2,000-£3,500 for routine maintenance, with major services every three years costing £6,000-£7,000. These costs are comparable to Ferrari and less than some Lamborghini models.

Model-Specific Reliability: The 570S and 540C are considered the most reliable McLaren models because they use conventional steel spring suspension rather than the problematic Proactive Chassis Control hydraulic system. This eliminates the most common and expensive McLaren failure mode. Owners report the 570S as having "zero issues" over 25,000+ miles of driving. The MP4-12C from 2011-2013 suffered from early production teething problems including IRIS system failures, windscreen cracking, and various electronic gremlins, but most issues were resolved under warranty. Cars with documented service history and updated components are now reasonably reliable. The 720S offers phenomenal performance but hydraulic suspension accumulators are a known weak point requiring eventual replacement. The P1 hypercar has proven remarkably reliable for a complex hybrid with 903 hp, with most issues being minor electrical problems. The Artura represents McLaren's latest technology and early reliability reports are generally positive though the model is too new for long-term assessment.

Importance of Maintenance and Warranty: McLaren reliability is heavily dependent on proper maintenance and not allowing cars to sit unused. McLarens that are driven regularly and serviced properly at recommended intervals experience far fewer problems. Cars that sit idle for extended periods develop issues as hydraulic seals dry out, batteries discharge, and electronic systems develop faults. Extended warranty coverage is strongly recommended for McLaren ownership. McLaren's extended warranty costs approximately £3,500 annually but covers expensive repairs like hydraulic suspension systems, gearbox issues, and electronic failures. Without warranty coverage, a single hydraulic suspension failure can cost £3,000-£5,000 to repair. When buying a used McLaren, verify complete service history with McLaren main dealers or reputable specialists. Pre-purchase inspection by a McLaren specialist is essential to identify existing or developing problems. Budget £4,000-£6,000 annually for maintenance, warranty, and consumables. While McLaren maintenance costs are high, they are comparable to other exotic supercars.

Prevention and Best Practices: To maximize McLaren reliability, follow these recommendations. Adhere strictly to McLaren service schedules without extending intervals. Use only McLaren-approved fluids and high-quality parts. Drive the car regularly rather than allowing it to sit unused for weeks. Use a battery tender whenever the car will sit for more than a few days. Address any warning lights or unusual symptoms immediately before small problems become major failures. Inspect hydraulic suspension components during every service for early signs of leaks or accumulator degradation. Consider replacing suspension accumulators proactively at 40,000-50,000 miles even if not showing symptoms. Protect vulnerable painted surfaces with PPF. Perform proper bedding-in procedures for carbon ceramic brakes. Maintain proper tire pressures and replace tires in axle pairs. When buying used, prioritize post-2015 models with updated components and verified service history. Despite known issues with hydraulic suspension, McLaren builds exceptional supercars with Formula One technology and driver-focused dynamics that reward proper care with remarkable reliability.

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