Service Manuals

Trim / Codes

The 2003 Nissan Sentra received a mild exterior restyling with revised front and rear fascias, and side-impact airbags became available on additional trim levels. Base models used a 1.8-liter four-cylinder engine, while the SE-R and SE-R Spec V carried a 2.5-liter four-cylinder paired with a six-speed manual transmission. Common service items include ignition coil failures, oxygen sensor replacement, and oil consumption on higher-mileage 2.5-liter engines. Timing chain tensioner wear and automatic transmission issues are also worth checking on older examples.

Manuals

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