Two-door sport sedan · 1.8L fuel-injected M10 inline-four (101 hp / 100 lb-ft)
1981 BMW 320iS
The period 1981 320iS combined the regular 320i powertrain with BMW's S equipment package and five-speed Getrag manual.
Photo: “BMW 3-Series (E21) 320 (1981)” by Charles from Port Chester, New York / Wikimedia Commons, licensed under CC BY 2.0. Cropped to 16:9.
Factory configuration
What this model is
- Trim
- 320iS
- Body style
- Two-door sport sedan
- Engine
- 1.8L fuel-injected M10 inline-four (101 hp / 100 lb-ft)
- Transmission
- 5-speed manual
Rear-wheel drive. Period specifications list Recaro seats, limited-slip differential, sport suspension, air dam, BBS/Mahle wheels, sunroof, fog lamps, and other equipment.
Compare related 1981 configurations
Compare up to twelve documented pairings, prioritizing the same engine, body, trim and gearbox as this car. This related selection is not a complete factory lineup.
Browse all documented 1981 configurations →
Compare 2 related configurations — current car marked
| Configuration | Engine | Transmission | Body |
|---|---|---|---|
| BMW 320i | 1.8L fuel-injected M10 inline-four (101 hp / 100 lb-ft) | 5-speed manual or 3-speed automatic | Two-door sedan |
| Current carBMW 320iS | 1.8L fuel-injected M10 inline-four (101 hp / 100 lb-ft) | 5-speed manual | Two-door sport sedan |
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 1981 BMW 320iS. Start with the interval, confirm which engine or configuration you have, then use an exact ordering reference when one is verified.
- Service topics
- 1
- Scheduled topics
- 0
- Applicability stated
- 1
- Exact references
- 1
Before ordering Identify 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 filter — catalog fitmentView intervals, applicability and sources
Engine oil filter — catalog fitment
Exact reference available
1.8L fuel-injected M10 inline-four (101 hp / 100 lb-ft) — K&N HP-1002
K&N HP-1002
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 320i replacement oil-filter catalog · 1981 BMW 320i 1.8L/2.0L gasoline — HP-1002 · checked
Verified ordering references
- Validated equivalentK&N HP-1002
Qty. 1 · Spin-on replacement oil filter · catalog-listed
Verify the current manufacturer application listing, VIN, production date, and installed dimensions before purchase.
Catalog: K&N — BMW 320i replacement oil-filter catalog · 1981 BMW 320i 1.8L/2.0L gasoline — HP-1002 · checked
Search this part on Amazon
1.8L fuel-injected M10 inline-four (101 hp / 100 lb-ft) — K&N HP-1002
K&N HP-1002
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 320i replacement oil-filter catalog · 1981 BMW 320i 1.8L/2.0L gasoline — HP-1002 · checked
Verified ordering references
- Validated equivalentK&N HP-1002
Qty. 1 · Spin-on replacement oil filter · catalog-listed
Verify the current manufacturer application listing, VIN, production date, and installed dimensions before purchase.
Catalog: K&N — BMW 320i replacement oil-filter catalog · 1981 BMW 320i 1.8L/2.0L gasoline — HP-1002 · checked
Search this part on Amazon
Search results may cover different scales, trims and model years. Check each listing; this search does not establish an exact replica of the documented vehicle.
Sources
Other 1981 configurations