Acura RSX DC5
Weaknesses, engine ratings and buying advice
Engine Overview
The Acura RSX DC5 is available with 2 engine variants — from 160 to 196 hp.
The K20A2 revs to 8,100 rpm, VTEC switches personality at 5,800. NA benchmark for FWD cars. 2nd gear synchro is the known weak point — gearbox otherwise bulletproof.
- !! Manual Transmission: 2nd Gear Synchro Wear from 120,000 km
2nd gear synchro rings wear prematurely, causing grinding especially when cold. Common even in normal use.
Symptoms: Grinding when shifting into 2nd, worse when cold, pops out of gear at speed
The K20A2 revs to 8,100 rpm, VTEC switches personality at 5,800. NA benchmark for FWD cars. 2nd gear synchro is the known weak point — gearbox otherwise bulletproof.
- !! Manual Transmission: 2nd Gear Synchro Wear from 120,000 km
2nd gear synchro rings wear prematurely, causing grinding especially when cold. Common even in normal use.
Symptoms: Grinding when shifting into 2nd, worse when cold, pops out of gear at speed
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Manual Transmission: 2nd Gear Synchro Wear Same issue as engine-level — 2nd gear synchro rings wear prematurely. Type S with spirited driving especially affected. Symptoms: Grinding when shifting into 2nd, worse when gearbox is cold, pops out of gear under acceleration from 120,000 km | High | |
| 3rd gear grinds and locks out Third gear grinds especially when cold. Same synchro issue as 2nd gear. Carbon synchros as permanent fix. Symptoms: Grinding to 3rd gear, occasional lockout, worse in cold from 100,000 km | High |
Top Reported Issues
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Known Problems and Issues +
A total of 5 weaknesses have been documented for the Acura RSX DC5 (2002–2006) — 1 engine-related and 4 vehicle-related. Typical issues affect Gearbox, Electronics, HVAC.
RSX (K20, 2002–2006) — Be Careful: Manual Transmission: 2nd Gear Synchro Wear. Power: 160 PS.
RSX (K20, 2002–2006) — Be Careful: Manual Transmission: 2nd Gear Synchro Wear. Power: 196 PS.
What to watch out for with the Acura RSX? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Acura RSX DC5 have? +
What should I look for when buying a used Acura RSX DC5? +
Which engine is recommended? +
Which Acura RSX DC5 engine is the most fun? +
Is the Acura RSX DC5 worth buying used? +
What horsepower variants are available for the Acura RSX DC5? +
Last updated: February 2026 · All information without guarantee