Ineos Grenadier Maintenance & Service Guide (2025)

2025-09-01

The Ineos Grenadier is engineered to be a tough, reliable workhorse. But like any serious 4x4, regular maintenance is the key to keeping it performing at its best — whether you’re tackling trails, towing heavy loads, or just using it as a daily driver.

This guide covers service intervals, common checks, and maintenance tips for Grenadier owners in 2025.

Service Intervals (UK 2025 guidance)

• Oil & filter change: every 12 months or 10,000 miles (whichever comes first).
• Brake fluid: every 2 years.
• Coolant: every 4 years.
• Air filter: inspect annually, replace every 2 years (more often if used in dusty/off-road conditions).
• Fuel filter (diesel models): replace every 2 years.
• Transmission & transfer case fluid: check every 2 years, replace every 6 years.
• Differential oil: inspect at 2 years, replace at 4 years.
• Spark plugs (petrol models): replace every 4 years or 40,000 miles.

Always check your official service handbook, as intervals may vary with driving conditions.

DIY Checks Between Services

• Tyre pressure & tread:
  Off-road use wears tyres fast. Keep them inflated to spec, and rotate every 6,000 miles.

• Engine oil level:
  Check monthly, more often if towing or off-roading.

• Brake pads & discs:
  Heavy use (towing, off-road descents) can shorten life. Listen for squeal or grinding.

• Battery & electrics:
  Modern 4x4s have a lot of electronics. Check for corrosion on terminals and test voltage.

• Fluid leaks:
  Look under the vehicle for oil or coolant drips, especially after rough terrain.

Grenadier-Specific Tips

• Solid axles & propshafts:
  Grease the propshaft U-joints regularly if you use the vehicle off-road.

• Underbody protection:
  Inspect skid plates for damage after heavy trail use. Replace if bent or cracked.

• Snorkel users:
  If fitted, check seals after deep-water crossings.

• Locking differentials:
  Engage occasionally even if not needed — it keeps actuators lubricated and working.

Servicing Costs (UK, 2025 estimates)

• Minor service: £250–£350
• Major service (fluids, filters, plugs): £600–£900
• Brake pads & discs (all round): £500–£800
• Tyre replacement (set of 5 all-terrain tyres): £1,000–£1,500

Independent 4x4 specialists may be cheaper than main dealers, but always ensure they use approved fluids and parts.

Extended Warranty & Service Plans

INEOS offers extended service plans in some markets. These can make sense if:

• You cover high annual mileage.
• You use the Grenadier for heavy towing or commercial work.
• You want predictable maintenance costs.

Essential Maintenance Accessories

• OBD-II scanner: great for reading error codes and clearing simple warnings.
• Workshop manual: invaluable for DIY jobs.
• Quality tool kit: sockets, torque wrench, breaker bar.
• Grease gun: to maintain suspension and driveline components.

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Final Thoughts

The Ineos Grenadier is built to last — but only if you look after it. Sticking to service schedules, carrying out regular checks, and investing in a few essential tools will ensure it remains reliable for years to come.

Whether you service it yourself or rely on an official dealer, a little preventative maintenance goes a long way.

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