2005 NISSAN Altima QR25DE/VQ35DE (L31)
L31 / Sedan / Coupe (market dependent) / North America, Japan, Australia, Middle East, selected global markets
QR25DEVQ35DEExact year/trim recordSilver
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- Intake valve cleaning needed over high mileage on QR25DE
- Timing chain tensioner wear possible
- Transmission fluid needs regular changes
First checks
- Check timing chain condition
- Inspect valve clearance and carbon buildup
- Verify transmission shift quality
Before replacing parts
- Save fault codes and freeze-frame data before clearing anything.
- Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
- Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.
Important notes
- 2005 Nissan Altima covers different trims and engine options based on market; profile focuses on main North American and key international versions.
- 2005 model introduced the mid-generation facelift with improved drivetrain electronics.