Toyota Alphard twin: common faults & what to check
Thinking about buying a used Toyota Alphard twin (2008–2023) in New Zealand? We've documented 13 known faults for this model spanning engine, electrical, cooling, and transmission. Each researched and verified before it's published. The most serious issues here are rated critical. Two are set out in full below — the rest, with the symptoms, repair costs and checks for each, are free with an account.
13
Documented faults
Critical
Most serious
$900–$4,500
Typical repair
5
Systems covered
Known Toyota Alphard twin faults
Every fault below is documented specifically for this model — researched and verified before it’s published.
012AZ-FE Head Bolt Thread Pull-Out
CriticalCommonEngine $2,800–$5,500 to fix
The ANH20W Vellfire shares the 2AZ-FE aluminium block with the Alphard and is subject to the same documented head bolt thread stripping defect. Coolant breaches the head gasket into combustion chambers or oil galleries, causing overheating, white exhaust smoke and oil emulsification. Toyota issued extended warranty coverage in Japan for this failure.
Symptoms to notice
White or sweet-smelling exhaust smoke on cold start or under load
Unexplained coolant level drops with no visible external leak
Milky emulsified residue on oil cap or dipstick
Engine overheating or erratic temperature gauge readings
Coolant reservoir bubbling at idle
What to check
Cold-start and watch for white sweet exhaust smoke. Check coolant reservoir for combustion gas bubbles at idle. Inspect oil filler cap interior for milky contamination. Request any coolant top-up records. If a workshop inspection is possible: Cooling system pressure test before purchase is recommended.
Where to look: Engine top end — cylinder head to block joint, upper engine bay
Ask the seller
“Has the engine ever overheated or required unexplained coolant top-ups?”
“Has a head bolt or head gasket repair been carried out?”
“Is there any cooling system service documentation?”
02Front Strut Mount Bearing and Upper Spring Seat Deterioration
MinorCommonSuspension $600–$1,800 to fix
The AH30 Vellfire's MacPherson-type front strut uses a bearing-in-rubber upper mount that deteriorates from ozone cracking and compression set, particularly in New Zealand and Australian conditions where vehicles sit unused for extended periods between family trips. As the bearing seizes within the degraded rubber mount, the strut cannot rotate freely during steering inputs and generates a loud knocking or clunking sound over undulations and when turning at low speed. The rubber spring seat concurrently collapses, reducing ride height and altering suspension geometry, leading to uneven tyre wear.
Symptoms to notice
Knocking or clunking from the front suspension over speed humps, rough roads, or driveways at low speed
Clunking or creaking sound when steering wheel is turned at low speed or while stationary
Steering feels notchy or catches slightly during slow parking manoeuvres
Uneven front tyre wear inconsistent with wheel alignment records
Front ride height lower on one side than the other
What to check
With the vehicle stationary, have an assistant turn the steering lock to lock while you listen at each front strut tower for a clunk or click. On a test drive, note any knocking over speed humps or rough surfaces at low speed. Visually inspect the top mount rubber for cracking, oil seepage from the bearing, or uneven compression. Measure ride height at the front wheel arches to check for spring seat collapse.
Where to look: Top of front strut assembly at the MacPherson strut tower in the engine bay
Ask the seller
“Have the front strut mounts or upper bearings ever been replaced, and at what mileage?”
“Has the vehicle had a recent wheel alignment check, and were any suspension components flagged as worn?”
“Is there any knocking or creaking from the front suspension on slow turns or over rough surfaces?”
EngineCritical
ElectricalCritical
CoolingCritical
ElectricalMajor
ElectricalMajor
EngineMajor
TransmissionMajor
EngineMajor
EngineMajor
ElectricalMajor
ElectricalMajor
11 more documented faults on the Toyota Alphard twin
Symptoms, what to check, where to look and what to ask the seller — for every fault above. Free with an account, no card needed. One account covers one vehicle, so make it the car you’re actually looking at.
This page covers the model. Enter the plate of the actual car you’re looking at and see its year, engine, safety rating and register flags — free, no account needed.
Like any used car, it depends on the specific example and its service history. Across the 13 documented faults for the Toyota Alphard twin, the recurring problem areas are engine, electrical, and cooling. A Toyota Alphard twin with a full service history and no signs of the issues listed on this page can be a sound buy but each one needs to be checked individually before you commit.
What are the most common problems with a used Toyota Alphard twin?
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We've catalogued 13 known faults for the Toyota Alphard twin, covering engine, electrical, and cooling. Two are written out in full on this page. The rest — with the symptoms to notice, what to inspect, and typical repair costs for each — are free once you create an account.
How much do repairs cost on a Toyota Alphard twin?
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Most single repairs on the Toyota Alphard twin fall between $900–$4,500 at NZ independent-workshop rates. Some of the 13 documented faults cost less and a few cost considerably more, and no one car needs them all. Knowing which ones to look for before you view is what lets you negotiate the price down or walk away.
Should I get a pre-purchase inspection on a Toyota Alphard twin?
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Yes. A Toyota Alphard twin inspection focused on its known weak points is the single best way to avoid an expensive mistake. KickTyres gives you a guided, model-specific inspection plus a market valuation and negotiation figure for $17.90 far less than the cost of missing one of the faults on this page.