Acura RDX TB3
Weaknesses, engine ratings and buying advice
The second-generation RDX (TB3, 2013–2018) marked a reversal for Acura: the turbocharged four gave way to a 3.5-liter J-series V6, and the sporty compact SUV became a smooth, comfortable family hauler. This grounding data lists the TB3 with the K24 i-VTEC four, but the true character engine of this generation is the SOHC V6 with variable cylinder management. Both power units share Honda's rock-solid foundation but differ sharply in their typical weak spots.
The K24 is regarded as one of the toughest fours of its era and will easily clear 300,000 km with regular oil changes. Its Achilles' heel is the oil-controlled timing chain and VTC actuator: neglect the oil changes and it announces itself with a cold-start rattle, followed by chain stretch and tensioner wear. Add to that increased oil consumption from piston-ring wear, developing exhaust-camshaft wear, and worn engine mounts over time that produce noticeable vibration. Serviced with discipline, it's a very long-lived engine.
The most critical weakness of this RDX generation, however, is the V6's VCM cylinder-deactivation system. Three-cylinder operation under light load drives oil consumption and noticeable vibration between 1,200 and 1,500 rpm; a VCM muzzler is a common aftermarket fix. VCM-related oil consumption can clog the pre-catalyst, triggering the check-engine light, power loss, and even engine damage — and the 2018 model year saw a spate of A/C compressor failures, sometimes tied to the clogged cat. The V6 automatic's torque converter shudders at steady speeds; an ATF change often helps. Everyday issues include delaminating headlight reflectors and premature front brake-pad wear.
As a buying tip: a well-maintained TB3 is a comfortable, durable SUV, but with the V6 you must monitor oil level religiously and check the cat's condition. Accept VCM as an ongoing theme and know the history, and you get a solid vehicle. If that effort feels like too much, hunt specifically for clean examples with documented oil consumption — that's where the good cars separate from the bad.
Generations
Engine Overview
The Acura RDX TB3 is available with one engine variant at 211 hp.
The 2.4-liter i-VTEC is regarded as one of the toughest four-cylinders of its era and easily surpasses 300,000 km with regular oil changes. Its weak spot is the oil-fed timing chain and VTC actuator: neglect the oil and the chain stretches while the actuator wears, showing up as a cold-start rattle. From around 150,000 km some model years develop elevated oil consumption from piston-ring wear. Oil changes every 8,000 km with approved oil are mandatory, as is periodic valve-clearance inspection since the valvetrain has no hydraulic lash adjustment.
- !! Timing chain stretch and tensioner wear from 180,000 km
With neglected oil changes the timing chain stretches past its wear limit and the hydraulic tensioner can no longer compensate. If the tensioner rod protrudes over 13.5 mm the chain is due. Result is a P0341 code.
Symptoms: Persistent rattle from the timing drive (not just on cold start), check-engine light with P0341, and in extreme cases chain skip and engine failure. - !! VTC actuator rattle on cold start from 160,000 km
Worn lock-pin spring in the VTC actuator: until oil pressure builds, the engine rattles or grinds briefly on cold start. Honda issued TSB 09-010 for this. Harmless at first but can damage chain guides over time.
Symptoms: Brief rattle/grind for 1-2 seconds on cold start that clears once oil pressure builds. With advanced wear, rough idle and a check-engine light (P0341) can appear. - !! Elevated oil consumption from piston-ring wear from 150,000 km
Especially 2008-2013 model years tend to consume oil as piston rings wear and oil enters the combustion chamber. Honda acknowledged this via TSB 13-077 (replace pistons/rings). It led to a US class-action settlement.
Symptoms: Dropping oil level with no visible leaks (up to 1 quart per 4,000-5,000 km), blue smoke under acceleration, and eventually P0420 from a fouled catalytic converter.
+ 2 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| VCM oil consumption clogs pre-cat High oil consumption from VCM clogs front catalytic converter. Check engine and power loss up to engine damage. Symptoms: Check engine, power loss, black exhaust smoke, oil drops fast from 120,000 km | High | |
| Headlight Reflector: Coating Delamination Internal reflector coating delaminates from projector lamp heat. Light pattern becomes diffuse and range drops significantly. Symptoms: Headlights appear hazy despite new bulbs, uneven beam pattern, poor nighttime visibility from 80,000 km | Medium |
Top Reported Issues
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Known Problems and Issues +
A total of 11 weaknesses have been documented for the Acura RDX TB3 (2013–2018) — 5 engine-related and 6 vehicle-related. Typical issues affect Electronics, Brakes, Gearbox, Other.
RDX (K24, 2013–2018) — Be Careful: Timing chain stretch and tensioner wear, VTC actuator rattle on cold start, Elevated oil consumption from piston-ring wear. Power: 211 PS.
What to watch out for with the Acura RDX? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Acura RDX TB3 have? +
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Which engine is recommended? +
Which Acura RDX TB3 engine is the most fun? +
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Last updated: February 2026 · All information without guarantee