The Lexus RX330 was sold in Australia from 2003 to 2006 as the second-generation RX, sitting firmly in the mid-size luxury SUV segment. Powered by Toyota's 3.3-litre 3MZ-FE V6 petrol engine paired with a five-speed automatic, it delivered a genuinely premium experience at a price well below comparable European rivals. In the Australian used-car market, the RX330 has earned a strong reputation for long-term durability — many examples well past 200,000 kilometres are still on the road — but that reputation depends on regular servicing. Buy one with a patchy history and you may be inheriting expensive headaches.
Timing belt (critical service interval)
This is the single most important thing to check on any RX330. The 3MZ-FE V6 uses a rubber timing belt, not a timing chain, and it is an interference engine. If the belt snaps, the pistons will strike the valves and the resulting engine damage is catastrophic — expect a repair bill that likely exceeds the car's value. Lexus and Toyota recommend replacement at around 150,000 km or 10 years, whichever comes first.
Because access is substantial, a good workshop will simultaneously replace the water pump, tensioner, and idler pulleys — doing it all in one go saves future labour. Budget roughly $1,200–$1,800 all-in at an independent mechanic; dealer pricing runs higher. If a used RX330 cannot show recent belt replacement with receipts, factor this into your offer or negotiate it done before purchase.
Dashboard degradation (sticky dash)
In Australia's harsh sun, a significant number of RX330 owners across all model years (2003–2006) have encountered a sticky, softening dashboard surface. The soft-touch coating used on the top of the instrument panel and surrounding trim breaks down under prolonged UV and heat exposure, turning tacky, sometimes oozing a yellowish compound, and producing a glare-inducing sheen on the windscreen.
Lexus acknowledged the defect globally and ran Customer Support Programs (codes ZLD and ZLZ) offering free dashboard replacements, but those programs have long since expired. Today, Australian owners have a few options:
- Professional dashboard replacement or re-covering: $600–$1,500+ depending on scope
- Aftermarket overlay/vinyl wrap solutions (widely available from Australian suppliers)
- Specialised coatings marketed for sticky dash repair (results vary)
Given the Australian climate, inspect the dashboard carefully on any prospective purchase — press gently on the top surface near the windscreen and check for tacky residue or surface cracking.
Transmission shift quality
The RX330's five-speed automatic has generated a recurring complaint: hesitation, lag, or a noticeable lurch when shifting between gears, particularly 1st-to-2nd and 2nd-to-3rd. Owners also report a clunk or jolt during closed-throttle downshifts when slowing to a stop, widely discussed on Australian Lexus Owners Club and international forums.
The root cause is tied to the transmission control module's shift logic interacting with the drive-by-wire throttle. Lexus dealerships have issued ECM reprogramming as a partial fix, but many owners find the improvement modest. A drain-and-refill with the correct Toyota WS fluid ($150–$300) can improve shift quality on a neglected example; a severely worn unit can cost $3,000–$5,500+ to rebuild. On a test drive, some mild hesitation is characteristic of the model — a severe stumble or refusal to upshift is a red flag.
Air conditioning
At 15–20+ years of age, air conditioning issues are not uncommon on the RX330. The most frequently reported problems are refrigerant leaks (typically from the condenser or evaporator), compressor failure, and faults in the dual-zone climate control electronics. In Australia's climate, a functioning aircon is essential, making this a priority pre-purchase check.
- Refrigerant regas (if no leak): $150–$250
- AC compressor replacement: $900–$1,600
- Evaporator replacement (requires dash removal): $1,400–$2,000+
Suspension wear
The RX330's suspension uses conventional rubber bushings and ball joints that degrade with age. Above 150,000 km, worn sway bar end links commonly produce a clunking rattle over speed bumps, along with tired front struts and lower control arm bushings. Some Australian-delivered RX330s were fitted with an optional air suspension — these can develop leaky air struts or a failing compressor, leading to a sagging or bouncing ride. Air suspension repair is considerably more expensive than conventional strut work, so confirm which setup the car has before buying.
- Sway bar end links (pair): $150–$350 fitted
- Front strut replacement (pair): $600–$1,100 fitted
- Air suspension strut replacement: $800–$1,800 per corner
VVT-i oil line (watch for older ignored campaigns)
Toyota and Lexus issued a Limited Service Campaign in some markets covering the VVT-i oil line on the 3.3-litre V6 — a metal-to-rubber hose that routes hot, pressurised engine oil outside the block. If the rubber section deteriorates and ruptures, oil can drain rapidly with little warning before serious engine damage occurs.
The formal campaign (LSC 9LH) primarily covered the later RX350 and ES350 (2007–2009), so the RX330's 3MZ-FE may not have been included. Regardless, ask a Toyota/Lexus mechanic to inspect the VVT-i oil hose during a pre-purchase inspection — the hose is a low-cost part; the engine damage it can cause is not.
Recalls & safety
The RX330 has been subject to at least one confirmed recall in Australia. The 2004 model year was included in a recall (registered on the Australian Product Safety Recalls database as REC-002693) relating to silicon oxide build-up on the brake light switch contact point, which could cause the stop lamps to become inoperative — a clear safety risk. Affected owners were directed to contact their authorised Toyota dealer for repair.
The RX330 also falls within the age range of vehicles that may be affected by the Takata airbag recall — the largest compulsory recall in Australian history. Certain Lexus models manufactured in the early 2000s were fitted with Takata inflators that can rupture and expel metal fragments. You should verify whether any specific vehicle is affected by entering its VIN at the Carify recalls page or directly with the ACCC Product Safety portal.
For year-specific recall details mapped to Australian RX330 data, check the 2004 Lexus RX330 recalls page and browse the car problems and recalls hub for broader context.
Buying a used Lexus RX330? What to check
The RX330 rewards a careful buyer who asks the right questions. Here is what to look for specific to this model:
- Timing belt receipts — confirm replacement with paperwork; if unavailable, budget for it immediately.
- Dashboard — press the top of the dash near the A-pillar; tackiness confirms the known coating failure.
- Transmission — drive cold and warm; note any hesitation between 1st and 2nd gear or clunking on deceleration.
- Air conditioning — run both zones on maximum cold; the cabin should cool noticeably within two to three minutes.
- Suspension — roll slowly over speed humps with windows down; listen for knocking at the front corners or a bouncing rear (air suspension).
- VVT-i oil hose — ask a mechanic to inspect the rubber section of the VVT-i oil line for cracking or seepage.
- Service history — oil changes every 10,000 km or less is the strongest indicator of engine health.
- Finance and write-offs — run a PPSR check to confirm no money is owing and the vehicle has not been written off.
Before you hand over any money, run a Carify VIN check to surface the vehicle's history including past owners, odometer readings, and any recorded incidents — details a seller may not volunteer.
The verdict
The Lexus RX330 is one of the more dependable luxury SUVs in the Australian used-car market. The 3MZ-FE V6 is durable, the ride quality is genuinely excellent, and build quality holds up well against European rivals of the same era. The caveats are manageable: the timing belt is non-negotiable, the dashboard coating can fail in Australian heat, and the gearbox can feel lethargic when neglected. A well-documented example with a fresh timing belt is a sensible buy; a car with no history and a sticky dash is a project. Get a pre-purchase inspection from a Toyota/Lexus-familiar mechanic and check the full vehicle history before committing.