Two-door rear-wheel-drive convertible · 1.8-liter M42 DOHC inline-four (134 hp)
1991 BMW 318i Convertible
The preserved 1991 U.S. records identify the 318i convertible as a distinct E30 configuration.
Photo: “1991 BMW 325I Touring (13146069314).jpg” by Kieran White from Manchester, England / Wikimedia Commons, licensed under CC BY 2.0. Cropped to 16:9.
Factory configuration
What this model is
- Trim
- 318i
- Body style
- Two-door rear-wheel-drive convertible
- Engine
- 1.8-liter M42 DOHC inline-four (134 hp)
- Transmission
- 5-speed manual or optional 4-speed automatic
Standalone option packages are not promoted into 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 1991 BMW 318i Convertible. Start with the interval, confirm which engine or configuration you have, then use an exact ordering reference when one is verified.
- Service topics
- 2
- Factory intervals
- 0
- Fitment-scoped
- 2
- 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 air filter
Exact reference available
1.8-liter M42 DOHC inline-four (134 hp) — K&N 33-2059
K&N 33-2059
Manufacturer-catalog replacement-part fitment only; it does not establish a BMW service interval. Confirm the VIN, production date, engine, and installed filter dimensions before ordering.
Source: K&N — BMW 318i replacement air-filter catalog · 1991 BMW 318i/318is 1.8L gasoline, U.S. models — 33-2059 · checked
Verified ordering references
- Validated equivalentK&N 33-2059
Qty. 1 · Panel engine air filter · catalog-listed
Verify the current manufacturer application listing, VIN, production date, and installed dimensions before purchase.
Catalog: K&N — BMW 318i replacement air-filter catalog · 1991 BMW 318i/318is 1.8L gasoline, U.S. models — 33-2059 · checked
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1.8-liter M42 DOHC inline-four (134 hp) — K&N 33-2059
K&N 33-2059
Manufacturer-catalog replacement-part fitment only; it does not establish a BMW service interval. Confirm the VIN, production date, engine, and installed filter dimensions before ordering.
Source: K&N — BMW 318i replacement air-filter catalog · 1991 BMW 318i/318is 1.8L gasoline, U.S. models — 33-2059 · checked
Verified ordering references
- Validated equivalentK&N 33-2059
Qty. 1 · Panel engine air filter · catalog-listed
Verify the current manufacturer application listing, VIN, production date, and installed dimensions before purchase.
Catalog: K&N — BMW 318i replacement air-filter catalog · 1991 BMW 318i/318is 1.8L gasoline, U.S. models — 33-2059 · checked
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Engine oil filter — catalog fitment
Fitment must be confirmed
Sources
- BMW — 1991 U.S. factory service-manual model and engine roster (Operation CHARM mirror)
- BMW of North America — 1991 U.S. 318i reintroduction, engine output, and pricing history
- BMW Car Club of America — January/February 1991 3 Series Update
- BMW of North America — first-generation U.S. M3 history and specification
Other 1991 configurations