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2021 Rolls-Royce Cullinan maintenance schedule

The 2021 Cullinan is part of the RR31 generation (2019-2026), sold as an SUV. Below: its service intervals with the source behind each one, the fluids it takes, the problems owners report for this year, and the NHTSA recalls issued for it.

Service schedule

What the 2021 Cullinan needs, and when

Manufacturer rows link to Rolls-Royce's own schedule, Independent rows to a service shop or parts retailer's published guide.

ServiceIntervalSource
Engine oil and filter (N74B68)

Essential for turbocharger and VANOS longevity

7,000 mi / 1 yearIndependent
Engine air filter (N74B68)

Standard replacement during bi-annual major service

10,000 mi / 2 yearsIndependent
Cabin air filter (N74B68)

Pollen filter checked annually, replaced bi-annually

10,000 mi / 1 yearIndependent
Tire rotation (N74B68)

Critical for mitigating tread wear on heavy AWD chassis

7,500 mi / 1 yearIndependent
Brake fluid (N74B68)

Hydraulic system flush to prevent internal corrosion

10,000 mi / 2 yearsIndependent
Engine coolant (N74B68)

Prevents block corrosion and overheating

5 yearsIndependent
Transmission fluid (N74B68)

Prevents solenoid degradation and harsh gear shifts

30,000 miIndependent
Spark plugs (N74B68)

Replaced every three years or on the third service visit

3 yearsIndependent
Serpentine belt (N74B68)

Drive belt and tensioner replacement

18,000 mi / 2 yearsIndependent
Differential and transfer case fluid (N74B68)

Required to protect the AWD power delivery system

24,000 miIndependent
12V battery (N74B68)

Inspection required to prevent catastrophic parasitic drain

10,000 mi / 1 yearIndependent

Intervals are for normal driving; towing, short trips, extreme heat or dust shorten them. Services we could not find an interval for are left off rather than guessed.

Fluids and engines

What goes in it

Engine oil
5W-30, 11.6 qt
Transmission fluid
ZF Lifeguard 8

Powertrains in this generation

  • 6.75 L 12-cyl (N74B68), 563 hp, 8-speed automatic, AWD
  • 6.75 L 12-cyl (N74B68), 600 hp, 8-speed automatic, AWD

Confirm the exact spec against the owner's manual or the label under the hood; capacities vary by engine and drivetrain.

Known problems

What 2021 Cullinan owners run into

Problems reported for this model year, with the mileage they tend to show up at. Buying past a window is not automatically a pass - it just needs to be priced in.

Air Suspension Failure

high severity

From about 60,000 mi · $5,000-$9,000 to fix

Vehicle sagging on one side, suspension warning light

Source: autoscopecarcare.com

Engine Oil Leaks

medium severity

Burning oil smell, gradual drop in oil level, oil spots

Source: europeanautospares.com

Infotainment / Electrical Glitches

low severity

$1,400-$2,700 to fix

Flickering screens, miscommunication between control modules

Source: armotors.ae

Safety recalls

2 NHTSA recalls for the 2021 Rolls-Royce Cullinan

From NHTSA's recall database, matched by model and year. Recall repairs are free at Rolls-Royce dealers, and a given car may already be fixed or fall outside a campaign, so check the VIN at nhtsa.gov/recalls before you buy.

Seats

NHTSA 26V143000

March 2026

BMW of North America, LLC (Rolls-Royce) is recalling certain 2020-2026 Rolls-Royce Cullinan vehicles. The fixing bolts may not have been properly tightened. The bolts may loosen and damage the left or right rear seat belt webbing or allow the backrest to move under pressure from items in the luggage compartment.

Remedy: Owners are advised not to use the rear seats or luggage compartment until the remedy has been completed. Dealers will inspect, tighten, or replace the fixing bolts as necessary, free of charge. In addition, the left and right rear seat belts will be inspected and replaced as necessary, free of charge. Owner notification letters were mailed May 1, 2026. Owners acmay contt Rolls-Royce M Cotor Carsustomer Relations and Services at 1-833-765-5727.

Seat belts

NHTSA 21V554000

July 2021

BMW of North America, LLC (BMW) is recalling certain 2021 2 Series (230i, 230i xDrive, M240i, M240i xDrive), 330e, 330e Xdrive, 4 Series Coupe (430i, 430i xDrive, M440i xDrive) M4 Coupe, M4 Competition Coupe, BMW 4 Series Convertible (430i, M440i), BMW X1 sDrive28i, xDrive28i, 2 Series Gran Coupe (228i, 228i xDrive, M235i xDrive), M2 Competition Coupe, 330i, 330i xDrive, M340i, M340i xDrive, M3, M3 Competition, 530i, 530i xDrive, 540i, 540i xDrive, MINI Hardtop 2 Door (Cooper, CooperS, JCW), X2 sDrive28i, X2 xDrive28i, X2 M35i, Z4 sDrive30i, Z4 M40i, MINI Hardtop 2 Door (Cooper SE), MINI Convertible (Cooper, Cooper S, JCW), MINI Clubman (Cooper S, Cooper S All4, JCW), MINI Countryman (Cooper, Cooper All4, Cooper S, Cooper S All4, JCW All4), Rolls Royce Ghost, MINI Countryman (Cooper S E All4), Rolls Royce Phantom, Rolls Royce Cullinan, and Toyota Supra vehicles. The passenger seat belt Automatic Locking Retractor (ALR) may deactivate early, before the webbing fully retracts. As such, these assemblies fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Remedy: Dealers will inspect the seat belt retractors (including the seat belts) and, if necessary, replace the retractors, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact BMW customer service at 1-800-525-7417; 1-866-825-1525 (MINI); 1-877-877-3735 (Rolls Royce); and 1-888-270-9371 (Toyota).

Other Cullinan model years

RR31 (2019-2026)

20192020202120222023202420252026

Shopping new? The Rolls-Royce Cullinan guide covers the current model, with what it costs to keep for 1 to 15 years.

Sources

Researched 2026-09-21. Modeling, not mechanic advice - always confirm against your car's owner's manual and service records.

Running a Cullinan for income?

Carlyle scores the exact listing on cost per remaining mile and projected Turo income, so you know what a 2021 Cullinan earns before you buy it.

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