Car Model History

Two-door soft-top roadster · 1.8L BP-Z3 inline-four with variable valve timing (142 hp)

2003 Mazda MX-5 Miata LS — 5-speed manual

Mazda's 2003 U.S. model material identifies the LS with the 5-speed manual.

2003 Mazda MX-5 Miata, NB second generation — Sunlight Silver roadster, front three-quarter view
Exact 2003 MX-5 Miata reference photograph; exact configuration not verified ·

Photo: “2003 Mazda MX-5 Miata Base in Sunlight Silver, Front Right, 08-13-2022” by Elise240SX / Wikimedia Commons, licensed under CC BY-SA 4.0. Cropped to 16:9.

Factory configuration

What this model is

Trim
LS
Body style
Two-door soft-top roadster
Engine
1.8L BP-Z3 inline-four with variable valve timing (142 hp)
Transmission
5-speed manual

United States configuration. Detachable hardtops, paint, and accessory packages are not separate configurations.

Configuration-specific ownership

Maintenance for this exact configuration

These items are filtered to the engine, transmission, trim, and model-year applicability recorded for this configuration. Broad Amazon category searches are suppressed here; shopping links appear only beside catalog-backed part numbers.

Service desk

What this car needs & when

Use this as a service-planning checklist for 2003 Mazda MX-5 Miata LS — 5-speed manual. Start with the interval, confirm which engine or configuration you have, then use an exact ordering reference when one is verified.

Service topics
5
Factory intervals
4
Fitment-scoped
5
Exact references
1

Before orderingIdentify your engine, options and build date.Part numbers and sizes can change within one model year. Shopping links appear only for catalog-backed references; still verify the listing against your vehicle before ordering.

  • Engine oil and filter

    Sourced interval available

    Applies to: 2003 · 1.8L BP inline-four · United States · The intervals are scoped to the cited naturally aspirated U.S. configuration; Mazdaspeed turbo and configuration-specific requirements are not claimed.

    Published interval: 7,500 mi / 12,000 km / 6 months · Normal service; whichever comes first.

    Source: Mazda — 2003 MX-5 Miata factory normal-service schedule (preserved service-manual database) · Maintenance > Service Intervals > Normal Service — recurring 7,500-mile rows · checked

  • Spark plugs

    Sourced interval available

    Applies to: 2003 · 1.8L BP inline-four · United States · The intervals are scoped to the cited naturally aspirated U.S. configuration; Mazdaspeed turbo and configuration-specific requirements are not claimed.

    Published interval: 30,000 mi / 48,000 km · Normal-service replacement interval.

    Source: Mazda — 2003 MX-5 Miata factory normal-service schedule (preserved service-manual database) · Maintenance > Service Intervals > Normal Service — 30,000-mile replacement row · checked

  • Engine air-filter element

    Sourced interval available

    Applies to: 2003 · 1.8L BP inline-four · United States · The intervals are scoped to the cited naturally aspirated U.S. configuration; Mazdaspeed turbo and configuration-specific requirements are not claimed.

    Published interval: 30,000 mi / 48,000 km · Normal-service replacement interval; inspect or clean at the intervening schedule rows.

    Source: Mazda — 2003 MX-5 Miata factory normal-service schedule (preserved service-manual database) · Maintenance > Service Intervals > Normal Service — 30,000-mile replacement row · checked

  • Camshaft timing belt

    Sourced interval available

    Applies to: 2003 · 1.8L BP inline-four · United States · The intervals are scoped to the cited naturally aspirated U.S. configuration; Mazdaspeed turbo and configuration-specific requirements are not claimed.

    Published interval: 60,000 mi / 96,000 km · Normal-service replacement interval.

    Source: Mazda — 2003 MX-5 Miata factory normal-service schedule (preserved service-manual database) · Maintenance > Service Intervals > Normal Service — 60,000-mile replacement row · checked

  • Engine oil filter — catalog fitment

    Exact reference available

    Baldwin B1400

    This manufacturer application record establishes replacement-filter fitment only; it does not establish a service interval.

    Applies to: 2003 · 1.8L BP · United States · Baldwin's exact Miata 1.8L application; confirm the engine and installed filter dimensions before ordering.

    Source: Baldwin Filters — Automotive Applications catalog (2017) · Printed catalog page 383, Mazda 2003 Miata row — Lube — B1400 · checked

    Verified ordering references

Sources

  1. Mazda — 2003 MX-5 Miata US sales brochure

Other 2003 configurations

Filter all 2003 configurations →