INEOS Van Parts UK - Quality Used & Genuine Parts

How to Replace INEOS Grenadier Headlights

INEOS Grenadier and Quartermaster headlight replacement is straightforward thanks to the utilitarian design philosophy. The circular headlight design provides easy access for replacement.

Step-by-Step Instructions:

1. Open the bonnet and secure it safely. Locate the rear of the circular headlight assembly from within the engine bay. The Grenadier's utilitarian design provides excellent access to headlight mountings despite the rugged construction. On both Grenadier SUV and Quartermaster pickup models, the headlight access is identical. Ensure the engine is cool before starting work and disconnect the battery negative terminal for safety when working with electrical components.
2. Disconnect all electrical connectors. INEOS headlights typically have 2-3 electrical connectors depending on specification including main beam, dipped beam, and side light connections. The connectors are straightforward with release tabs that press to disconnect. Pull each connector straight out carefully. The chunky design of INEOS components means connectors are designed to be operated with work gloves, making them easier to handle than typical modern vehicles. Take a photo before disconnection to remember correct positioning.
3. Remove the headlight mounting bolts. INEOS Grenadier models use accessible mounting bolts to secure the headlight assembly. There are typically 3-4 bolts around the perimeter of the circular headlight unit, usually 10mm bolts or similar standard sizes. The utilitarian design philosophy means these fixings are straightforward without hidden clips or complex mechanisms. Remove all mounting bolts completely and keep them organized. The solid build quality means bolts should come out easily without corrosion on newer models.
4. Release any additional clips or retainers. Check for any supplementary plastic clips or retaining mechanisms that may provide additional security for the headlight assembly. INEOS design favors simplicity, so there are fewer hidden clips compared to modern SUVs. Work carefully checking all edges of the headlight unit. If you encounter resistance when attempting to remove the headlight, stop and check for missed fixings rather than forcing.
5. Carefully remove the headlight assembly. With all bolts and clips released, gently pull the headlight straight forward out of its mounting position. The circular headlight design means the unit should come out cleanly once all fixings are removed. Support the weight as you pull to prevent dropping the unit. INEOS headlights are substantial and well-constructed so handle with care. Place the removed headlight on a protected surface.
6. Transfer components to new headlight if needed. If your replacement headlight doesn't include bulbs, carefully transfer these from the old unit. When handling bulbs, wear clean gloves to avoid touching glass surfaces with bare hands as oils cause premature bulb failure. Check bulb condition during transfer and replace if showing signs of age or damage. The simple design means bulb replacement is straightforward.
7. Install the new headlight assembly. Reverse the removal process by aligning the new headlight with mounting holes and push into place ensuring correct positioning. Refit all mounting bolts and tighten securely without overtightening. Reconnect all electrical connections ensuring each clicks firmly into place. The chunky connectors designed for work glove operation make this process simple. Test all lighting functions before final assembly including dipped beam, main beam, and side lights. Check headlight alignment visually. The utilitarian design means adjustment should be straightforward if needed.

Important Notes: INEOS headlight replacement exemplifies the brand's utilitarian design philosophy with straightforward access and simple fixings. The circular headlight design is both iconic and practical for replacement. When handling new headlights, never touch lens or reflector surfaces. Proper headlight alignment is crucial for off-road visibility and MOT compliance. The Grenadier's high driving position means headlight aim is particularly important to avoid dazzling other drivers.

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How to Replace INEOS Grenadier Front Bumper

Replacing an INEOS Grenadier or Quartermaster front bumper is achievable in 60-90 minutes. The utilitarian design with exposed fixings makes this process more straightforward than typical modern SUVs.

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. The INEOS design philosophy favors accessible fixings rather than hidden mechanisms. Expect 4-6 bolts or screws securing the top of the bumper, typically 10mm or 13mm bolts. On both Grenadier SUV and Quartermaster pickup models, the front bumper mounting is identical. Remove all upper fixings systematically and store them safely. The solid build quality means fixings should be in good condition without excessive corrosion.
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. The Grenadier's recirculating ball steering means significant turning lock. Behind each front wheel, locate the plastic arch liner. Remove or release 2-4 plastic clips or screws securing the front section of the arch liner to expose side bumper mounting points. The utilitarian design means arch liners are straightforward without excessive fasteners. Repeat on both driver and passenger sides.
3. Remove the side mounting screws from both wheel arches. Behind each wheel arch liner, you'll find 2-3 screws or bolts securing each side of the bumper to the chassis. These are usually 10mm bolts on INEOS models. The ladder-frame chassis construction with solid axles means mounting points are robust and accessible. Remove all side fixings on both driver and passenger sides. Keep track of bolt types as the solid construction may use different lengths in different positions.
4. Remove undertray screws and lower bumper fixings. Get underneath the vehicle safely using ramps or jack stands. The Grenadier's high ground clearance provides good access underneath. Locate and remove all screws and clips securing any engine undertray and lower edge of the bumper. INEOS typically uses 6-8 fixings along the bottom edge. These may be bolts or plastic clips. The utilitarian design means fewer hidden fixings compared to typical modern SUVs. Be aware of any auxiliary equipment like winch mounting points if fitted.
5. Disconnect fog lights, sensors, and electrical connections. Reach behind the bumper and disconnect any electrical connectors including fog lights if fitted and parking sensor connections. The chunky electrical connectors designed for work glove operation make disconnection straightforward. Press release tabs carefully and pull straight out. Count how many connections you disconnect to ensure you reconnect them all during refitting. The simple design means fewer electrical connections compared to modern luxury SUVs.
6. Release the bumper side clips and mounting tabs. INEOS bumpers are secured by mounting brackets on each side. With all fixings removed, firmly but gently pull the bumper forward from one corner while supporting the opposite side. The solid construction means bumpers are substantial and heavy. You may need to wiggle slightly to release mounting points. Listen for clicks or feel for resistance indicating mounting tabs disengaging. A second person is helpful given the weight and size of INEOS bumpers.
7. Remove the bumper completely from the vehicle. With all fixings removed and mounting points released, carefully pull the bumper straight forward away from the vehicle. INEOS bumpers are heavy and substantial due to the rugged construction, so consider getting a second person to help. The Quartermaster bumper is identical to the Grenadier SUV bumper. Place the removed bumper on a protected surface like cardboard to avoid scratching the painted or textured finish.
8. Prepare and fit the replacement bumper assembly. Before installation, transfer any mounting brackets, fog light assemblies, sensor components, or auxiliary equipment mounting points from the old bumper if not fitted to your replacement. Check for any winch mounting provisions or recovery points if your vehicle is equipped. Align the new bumper with mounting points and push firmly into place ensuring all mounting brackets engage properly. Reconnect all electrical connections including fog lights and sensors. Systematically secure with all screws, bolts, and clips in reverse order of removal. Test all electrical functions before final assembly. Check bumper alignment is correct and panel gaps are acceptable. The utilitarian design means precise panel gaps are less critical than on luxury vehicles but alignment should still be checked.

Top Tips: INEOS bumper replacement reflects the brand's utilitarian design philosophy with accessible fixings and straightforward procedures. When refitting sensors, ensure each is correctly positioned. The simple design with fewer electrical connections compared to luxury SUVs makes the job more manageable. Check alignment before final tightening. If your Grenadier has auxiliary equipment like winches, recovery points, or auxiliary lights, ensure all mounting points are correctly transferred and reconnected. The solid construction means replacement bumpers should fit well without excessive adjustment.

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Common INEOS Van Parts Problems & Solutions

INEOS vehicles are new to the market, launched in 2022, making long-term reliability data limited. However, the brand uses proven components including BMW 3.0-litre turbo engines, ZF 8-speed automatic transmissions, and Carraro heavy-duty axles. Over 20,000 Grenadiers have been built worldwide by end of 2024. INEOS backs all vehicles with a 5-year/60,000-mile warranty, better than Land Rover's 3-year coverage. Edmunds awarded the Grenadier 7.1/10 rating. Here are the most commonly reported INEOS parts problems based on verified data from UK and international owners, mechanics, and industry specialists.

Recirculating Ball Steering Issues - Most Criticized Component:

• The Design Choice: The Grenadier and Quartermaster use recirculating ball steering produced by Bosch rather than modern rack-and-pinion systems. This old-school design was deliberately chosen for extreme off-road capability as it doesn't transfer force to the steering wheel when hitting obstacles, preventing broken wrists during rock crawling or high-speed desert running. The same system is used in Jeep Wrangler and Gladiator, and was standard in the original Land Rover Defender. However, this design choice creates significant on-road compromises.
• The Problems: The recirculating ball steering exhibits significant vagueness and wandering requiring constant correction to keep the vehicle tracking straight on roads. There is substantial slack around the straight-ahead position meaning the steering wheel can move several inches before the wheels respond. The steering is nonlinear with response slowing down away from center, and requires almost four full turns lock-to-lock making direction changes requiring significant steering input complicated and slow. Multiple professional reviewers report the Grenadier wanders like its alignment is off even on well-maintained roads, requiring near-continuous minor corrections throughout driving. The frequency of these steering inputs increases with speed, over bumpy surfaces, and when subjected to crosswinds due to the vehicle's slabby sides. The steering weights up significantly when swinging between locks making parking maneuvers laborious. Some reviewers question whether emergency maneuvers are even possible given the slow steering response.
• Owner Adaptation: Long-term owners report they quickly grow accustomed to the vague steering and develop a sympathetic driving style, treating it like driving a canal boat with predictable vagueness rather than inaccuracy. The steering requires subconscious constant minor corrections that become second nature. However, this adaptation takes time and the steering remains the single biggest on-road compromise. Urban driving is deeply frustrating with the vague steering combined with terrible turning circle and delayed pull-away creating clumsiness in tight spaces. Highway driving requires vigilance to maintain lane position especially in crosswinds.
• The Solution: There is no fix as this is deliberate design for off-road capability. Buyers must accept this compromise or choose a different vehicle. The vague steering is fundamental to the Grenadier's character as an uncompromising off-roader. INEOS defends the design stating both the Grenadier and Quartermaster are made for off-roading not mall outings. Prospective buyers should test drive extensively on varied roads before purchasing to ensure they can accept this quirk. Some owners report the Fusilier will use conventional rack-and-pinion steering which should eliminate this issue.

Poor Fuel Economy and Limited Range:

• Official Figures: The EPA rates the Grenadier and Quartermaster at just 15 mpg combined (city and highway). This is exceptionally poor even for a heavy off-roader, making the vehicles deeply thirsty. Real-world reports from long-term testers confirm these figures with some reporting even worse economy under heavy use. The BMW 3.0-litre turbo straight-six engine prioritizes low-end torque for off-road use rather than efficiency.
• Limited Range: The fuel tank capacity is just 23.7 gallons. Combined with 15 mpg economy, this provides a theoretical range of only around 355 miles between fill-ups. In practice, with reserve fuel and real-world economy, expect 300-320 miles range. For a vehicle designed for remote exploration, this limited range is criticized as inadequate. Long-distance trips require frequent refueling stops. Owners report credit cards wilting in anticipation of fuel costs on long journeys.
• The Reality: Buyers must accept high running costs as part of Grenadier ownership. The poor fuel economy is the price paid for the BMW turbo six-cylinder engine's power delivery and the vehicle's 2.8-tonne weight. There is no solution short of fitting a larger auxiliary fuel tank. Prospective buyers should factor significant fuel costs into ownership calculations.

Horrible Depreciation - Financial Consideration:

• Severe Value Drops: Depreciation on Grenadiers has been described as horrible with drops of £30,000 after just one year and 10,000 miles reported. This represents catastrophic value loss not quite Mercedes EQE levels but approaching it. Quite a few low-mileage cars appear on the used market, possibly bought with greater expectations of daily refinement than the vehicle delivers. The result is that residual values are poor.
• Used Market Opportunity: The severe depreciation makes used Grenadiers potentially excellent value for those who understand and accept the vehicle's compromises. Spending £45,000 on a year-old Grenadier is considered far better value than an alarmingly overpriced decade-old Defender. Second-hand buyers benefit from the original owner absorbing the depreciation hit while getting a nearly-new vehicle with most of the 5-year warranty remaining.

Mushy Brakes and Long Stopping Distances:

• Braking Performance: Professional testing revealed the Grenadier SUV requires 152 feet to stop from 60 mph, which is a long stopping distance for a modern vehicle. The brakes are described as mushy without firm pedal feel. The Quartermaster is expected to have even longer stopping distances given it weighs nearly 400 pounds more than the SUV. This is a significant safety concern especially given the poor fuel economy encourages trying to maintain momentum.
• The Issue: The brake performance appears inadequate for the vehicle's substantial 2.8-tonne weight. While the hardware uses four-wheel disc brakes, the system doesn't provide the confidence-inspiring stopping power expected. Prospective buyers should test brake performance during test drives and allow extra stopping distances in all conditions.

Delayed Pull-Away and Throttle Response:

• Lag When Pulling Away: There is noticeable lag when pulling away from a standstill creating a delayed step-off. This is described as particularly annoying and a safety issue when attempting to pull into gaps in traffic. The delay between pressing the accelerator and the vehicle actually moving can catch drivers off-guard in critical situations. This appears to be a characteristic of the BMW engine and ZF transmission calibration in the Grenadier.
• Impact: The delayed pull-away combined with vague steering and terrible turning circle makes urban driving deeply frustrating. Quick decisions at junctions or roundabouts require anticipating the throttle lag. There is no known fix for this issue. Drivers must adapt their driving style to account for the delay.

Terrible Turning Circle and Maneuverability:

• Poor Maneuverability: The turning circle is described as terrible and hopeless with significant steering weight when swinging between locks. Urban use reveals deep frustration with the vehicle's clumsiness in tight spaces. Multi-point turns are frequently necessary in situations where other vehicles would complete U-turns. The Quartermaster's additional 12 inches of wheelbase makes maneuverability even worse.
• Design Trade-Off: The poor turning circle is the result of the solid front axle and recirculating ball steering optimized for off-road articulation rather than urban agility. This is another fundamental compromise buyers must accept. Keep the Grenadier away from urban use as its clumsiness is deeply frustrating in town environments.

Production Halt - Recaro Seat Supplier Insolvency (September 2024 to January 2025):

• Critical Component Shortage: In September 2024, INEOS was forced to halt production of all Grenadier and Quartermaster models due to a critical component shortage. The supplier entered a pre-insolvency situation affecting a trim part that INEOS cannot sell vehicles without. While not officially confirmed, Recaro has been the seat supplier for Grenadier and Quartermaster models. CEO Lynn Carter stated the company is leaving no stone unturned to find a new supplier.
• Impact and Resolution: Production remained offline through late 2024 with INEOS operating a conservative scenario targeting full production resumption in early January 2025. This four-month pause affected delivery timelines for customers with orders. The incident demonstrates the supply chain vulnerabilities facing low-volume manufacturers. Production successfully restarted in January 2025 after resolving the supplier issue. Buyers should verify current production status and delivery timelines when ordering.

Limited Interior Storage and Small Cupholders:

• Storage Deficiencies: Despite the utilitarian design, interior storage cubbies are lacking. The cupholders are too small and don't accommodate big water bottles or oversized mugs, which is particularly problematic for a vehicle designed for remote exploration where hydration is critical. This seems like an oversight in the otherwise practical design.
• Interior Design: The cabin prioritizes ruggedness with easy-wash cloth upholstery on Trialmaster trim and chunky switches designed for work glove operation, but storage solutions are inadequate. Owners need to find aftermarket storage solutions or accept the limitations.

Electrical Gremlins - Variable Owner Experiences:

• Reported Issues: Some owners report electrical problems including door handle buttons that stick, rear passenger doors that hold water after car washes, false warning messages like "Engine Oil Low" in the middle of nowhere (uncertain if real or false alarm), and in worst cases, vehicles spending almost 4 months in the shop during first year of ownership for bad modules and electrical gremlins. Wire routing recalls were issued examining potential for wires to rub and cause failures.
• Variable Experiences: However, other owners report no electrical issues whatsoever, praising the vehicle as the second most reliable new vehicle they've owned since 2005. The variable experiences suggest quality control inconsistency or specific batch issues. Some issues like door handle buttons sticking and water retention are considered small annoyances rather than critical failures. Prospective buyers should ensure comprehensive warranty coverage for electrical components.

Lack of Safety Features and Creature Comforts:

• Minimal Safety Technology: The Grenadier comes with very few safety features beyond parking sensors and optional reversing camera. There is no Euro NCAP crash testing as INEOS expects to sell in very limited numbers. Standard safety equipment includes front, side, and curtain airbags, ESC, ABS, and forward collision warning. For 2025, lane-departure warning and automatic emergency braking were added as standard. However, the vehicle lacks the comprehensive driver assistance systems expected on £76,000+ vehicles.
• Limited Comfort Features: Heated seats aren't standard equipment. There are no power seat adjustments. No digital rear-view mirrors. The vehicle prioritizes function over luxury. Buyers expecting premium comfort at the premium price point will be disappointed. The Grenadier is deliberately anti-luxurious as part of its utilitarian character.

Price Versus Refinement Mismatch:

• The Fundamental Issue: Starting at £76,140 in UK (£77,000+ for Quartermaster) and $73,100 in US ($88,500+ for Quartermaster with chicken tax), the Grenadier commands luxury SUV pricing. However, it lacks the refinement, comfort, luxury, and daily driving ability of competitors at similar prices like Lexus GX, Land Rover Defender, or Mercedes G-Class. The Grenadier feels crude on-road with vague steering, poor fuel economy, mushy brakes, terrible turning circle, and limited refinement.
• The Philosophy: INEOS argues the price reflects the uncompromising off-road capability, quality components from BMW/ZF/Carraro, solid build quality, and 5-year warranty. The vehicle is deliberately focused on off-road ability accepting on-road compromises. Buyers paying £76,000+ should expect a vehicle with a broad spread of abilities, but the Grenadier is narrowly focused. If your idea of the perfect off-roader is a modernized, more reliable version of a 1980s Land Rover Defender, the Grenadier is the only option. If you expect the refinement of a Lexus GX to justify the price, you'll be disappointed.

INEOS Reliability Assessment:

Too New for Long-Term Data: INEOS is a brand-new manufacturer launched in 2022 making long-term reliability data unavailable. However, the focus on proven components provides confidence. The BMW 3.0-litre turbo straight-six is tried-and-tested across millions of BMWs. The ZF 8-speed automatic is one of the most reliable transmissions available used in everything from Ram pickups to Audi and BMW vehicles for 15 years. Tremec builds the two-speed transfer case. Carraro supplies axles to all manner of off-highway vehicles. Magna Steyr provided engineering and builds the Mercedes G-Class. These are well-established and respected components.

Owner Experiences: Owner sentiment is mixed. Some report the Grenadier is the second most reliable new vehicle they've owned with no issues. Others report spending 4 months in the shop for electrical problems in the first year. The variance suggests early production quality control issues. INEOS's focus on quality and durability versus planned obsolescence should provide long-term reliability. The 5-year/60,000-mile warranty is better than Land Rover's 3-year coverage demonstrating INEOS confidence. Build quality is praised as very solidly built, rugged, and tough with precision typically reserved for low-volume luxury vehicles from Rolls-Royce and Bentley.

The Bottom Line: The Grenadier is an uncompromising off-roader deliberately built for extreme terrain rather than daily driving. It corners like a hippo, drinks fuel, has vague steering requiring constant correction, terrible turning circle, and limited refinement. But for off-road capability, it's exceptional with best-in-class hardware. No new vehicle is better suited to green lanes, remote exploration, having stuff hung off them, and generally being as useful as a tool belt. The criticism is INEOS built the ultimate farm truck then priced it beyond farm budgets. Buyers must accept significant compromises or choose a different vehicle. This is an acquired taste – don't be deceived thinking it won't be that different from a Q7 or even a G-Class. If you want worry-free daily driving with occasional off-road ability, choose a Defender or GX. If you want uncompromising off-road capability and can accept on-road crudeness, the Grenadier has no equal.

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