A33
Infiniti I35 (2002–2004)
Maintenance Schedule
7 recurring services keep the 2002–2004 Infiniti I35 healthy — starting with oil changes every 3,750 miles. Budget roughly $1,700–2,700 in routine maintenance over 100,000 miles at typical U.S. shop prices.
Applies to model years 2002, 2003, 2004
Full schedule
Intervals follow the factory maintenance schedule for the 2002-2004 Infiniti I35. Cost ranges are typical U.S. shop prices.
| Service | Interval | Est. cost | Notes |
|---|---|---|---|
| Oil Change | Every 3,750 mi or 6 mo | $40–65 | Engine oil and filter replacement |
| Air Filter | Every 15,000 mi or 12 mo | $25–45 | Engine air filter replacement |
| Brake Fluid | Every 30,000 mi or 2 yr | $60–90 | DOT 3 brake fluid replacement |
| Spark Plugs | Every 60,000 mi or 5 yr | $100–180 | Platinum spark plugs replacement (V6) |
| Transmission Fluid | Every 60,000 mi or 5 yr | $110–180 | Automatic transmission fluid change |
| Coolant Flush | Every 60,000 mi or 5 yr | $80–125 | Extended life coolant flush and refill |
| Timing Chain | Every 120,000 mi or 12 yr | $700–1,200 | Timing chain, guides, and tensioner replacement |
Common questions
How often should I change the oil on a 2002–2004 Infiniti I35?
Every 3,750 miles or 6 months, whichever comes first. A typical U.S. shop charges $40–65. Engine oil and filter replacement.
How much does it cost to maintain a Infiniti I35 (2002–2004)?
Routine maintenance on the 2002–2004 Infiniti I35 runs roughly $1,700–2,700 over 100,000 miles at typical U.S. shop prices, spread across 7 recurring services. Independent shops usually land near the low end; dealers near the high end.
What is the most expensive scheduled service on this I35?
Timing Chain at $700–1,200, due every 120,000 miles. Timing chain, guides, and tensioner replacement.
Cost ranges are estimates for typical U.S. independent shops and dealers; your local prices will vary. Always confirm intervals against your owner's manual — severe driving conditions (towing, short trips, extreme heat or cold) shorten many of them.