Acura TL UA6
Weaknesses, engine ratings and buying advice
The third-generation Acura TL (UA6, 2004 to 2008) was Honda's answer to the sporty midsize sedans from Germany and Japan, and it struck a chord: a strong V6, a firm chassis, front-wheel drive, and in Type-S trim a genuine enthusiast car. The UA6 remains one of the most sought-after Acuras because it blends daily usability with real driving fun and is fundamentally well engineered. A clean Type-S with the six-speed manual is one of the last true examples of classic Honda engineering.
On the engine side, the UA6 is easy to recommend. The 3.2-liter SOHC-VTEC V6 (J32A3) is a robust, free-revving naturally aspirated unit that predates the later VCM cylinder-deactivation troubles and will comfortably clear 300,000 miles of service life with proper care. The critical item is the timing belt: this is an interference engine, so a snapped belt means catastrophic damage. The replacement interval must be respected to the letter, ideally done together with the water pump, whose bearing tends to leak or fail. Other typical minor issues include an oil leak at the VTEC solenoid, weeping valve-cover gaskets that drip oil onto the exhaust manifold, and the front engine mount, which eventually gives up under heat.
The UA6's biggest weakness isn't the engine but the five-speed automatic. It's the same structurally fragile Honda torque-converter unit found in the MDX: the third-gear clutch wears, metal debris circulates through the system, and it slowly self-destructs. Regular transmission fluid changes with the correct ATF-Z1 are mandatory, and an auxiliary transmission cooler is smart insurance. Buyers who want to sidestep the trouble entirely should seek out the Type-S with its six-speed manual. Beyond that, there are smaller items: the dashboard cracks around the passenger airbag cover from heat and UV, the HandsFreeLink Bluetooth module parasitically drains the battery, and a recall covered a power-steering hose that can rupture from heat. The front lower control-arm bushings go brittle, causing clunks and uneven tire wear.
Bottom line, the UA6 is a solid used buy provided you scrutinize the automatic or simply go for the manual. When shopping, insist on a documented timing-belt history, a record of proper transmission fluid changes, and check the engine mounts and control-arm bushings. A well-maintained example, ideally a Type-S, is a reliable and characterful companion that still delivers two decades on.
Generations
Engine Overview
The Acura TL UA6 is available with 3 engine variants — from 269 to 286 hp.
This 3.2-litre SOHC-VTEC V6 is a stout, torquey naturally aspirated engine without the later cylinder-deactivation (VCM) headaches. It uses an interference timing belt that must be replaced strictly on schedule, since a snapped belt causes catastrophic valve damage. Past roughly 150,000 km the engine develops assorted oil leaks (valve cover, VTEC solenoid, cam seals). The water pump and engine mounts are typical wear items. With gapless maintenance the block easily reaches high mileage.
- !! Timing belt: interference engine, strict replacement interval from 170,000 km
The J32A3 is an interference engine with a timing belt. If the belt snaps or skips teeth, valves and pistons collide, causing catastrophic engine damage. Replacement interval is 105,000 miles or 7 years; water pump and tensioner should be done at the same time.
Symptoms: Usually no warning; occasional squealing from tensioner/idler pulley, visible cracking on the belt at inspection. - !! Water pump leak / bearing failure from 170,000 km
The timing-belt-driven water pump wears at the bearing and starts leaking. Failure can damage the belt and overheat the engine. It is best replaced together with the timing belt because it sits in a hard-to-reach spot.
Symptoms: Squealing/grinding from the timing belt area, coolant loss, puddle under the engine, rising coolant temperature. - !! Front engine mount cracks (heat) from 160,000 km
The front engine mount tears due to high under-hood temperature, sometimes needing multiple replacements. Acura issued a TSB (11-007) but no recall. Causes noticeable vibration and jerking.
Symptoms: Strong vibration in the steering wheel/seat at idle and in reverse, a clunk noise when accelerating or shifting.
+ 2 more engine weaknesses + vehicle weaknesses
The 3.5-litre SOHC i-VTEC V6 is fundamentally a robust, smooth naturally aspirated engine with strong torque and long life well beyond 300,000 km. Its weak point is the VCM cylinder-deactivation system, which promotes oil consumption, oil-fouled spark plugs and misfires on the deactivated cylinders. Honda replaced piston rings under a class-action settlement and extended the warranty accordingly. When buying, check documented oil consumption and the timing-belt-driven water pump — the belt on this interference engine is due roughly every 165,000 km or seven years, and a broken belt means bent valves. Many owners fit a VCM disabler module to head off the oil problem before it starts.
- !! High oil consumption from VCM (piston rings) from 130,000 km
The VCM cylinder-deactivation system lets oil slip past the rings of the deactivated cylinders into the combustion chamber. Rings coke up and oil consumption rises sharply. Honda replaced piston rings under a class-action settlement and extended the warranty.
Symptoms: Oil level drops noticeably between changes (over 1 litre per 2,000 km), blue smoke on acceleration, oil warning light, power loss. - !! Timing belt and water pump interval (interference engine) from 165,000 km
The J35 is an interference engine with a timing belt; a snapped belt bends valves and destroys the engine. Replace the belt roughly every 165,000 km or seven years. The water pump is belt-driven and must always be replaced together.
Symptoms: Usually no warning; possible signs: squealing belt noise, coolant seeping at the timing cover side, camshaft sensor code P0344. - !! Water pump bearing failure (belt-driven) from 150,000 km
The timing-belt-driven water pump can leak from a worn bearing or seize. A seized bearing can snap the timing belt, causing consequential damage on this interference engine.
Symptoms: Coolant seeping from the weep hole, high-pitched whine or grinding from the belt area, overheating, coolant loss.
+ 3 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| 5-Speed Automatic: Complete Failure Same Honda 5-speed automatic as MDX YD1. 3rd gear clutch pack wears, metal shavings destroy system. Acura offered extended warranty, long since expired. Symptoms: Harsh shifts, grinding during gear changes, transmission warning light, complete loss of drive from 130,000 km | High |
Top Reported Issues
Alternatives
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Known Problems and Issues +
A total of 17 weaknesses have been documented for the Acura TL UA6 (2004–2008) — 11 engine-related and 6 vehicle-related. 2 problem engines: J35 (3.5L V6), J32A3 (3.2L V6 SOHC VTEC). Typical issues affect Gearbox, Interior, Electronics, Steering.
TL (J32A3, 2004–2008) — Stay Away!: Timing belt: interference engine, strict replacement interval, Water pump leak / bearing failure, Front engine mount cracks (heat). Power: 270 PS.
TL (J35, 2007–2008) — Stay Away!: High oil consumption from VCM (piston rings), Timing belt and water pump interval (interference engine), Water pump bearing failure (belt-driven). Power: 286 PS.
What to watch out for with the Acura TL? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
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Last updated: February 2026 · All information without guarantee