Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1984 318I - E30.
The 1984 BMW 318I sits on the classic E30 chassis, a compact sedan that has become a benchmark for engineering durability, and it requires 4.2 quarts of 20W‑50, 15W‑50, or 10W‑50 API SL oil to keep its inline‑four running smoothly. With only five total owner complaints reported for the model year—primarily in the engine and cooling system—this car demonstrates a remarkably clean reliability record, underscored by the absence of any recalls. The low incidence of issues highlights the robustness of the 318I’s mechanical design and suggests a dependable service life for enthusiasts and researchers alike.
Fluid capacities, tune-up values and fuel economy at a glance.
Capacities, torques and tune-up values from the factory service manual.
This engine holds 4.2 qt of 20W-50 / 15W-50 / 10W-50 API SL engine oil, GL-5 in the differential, DOT 4 brake fluid.
| Brake Fluid | DOT 4 |
| Differential Gear Oil | GL-5 |
| Differential Gear Oil Capacity | 2 Pints |
| Engine Coolant | ETHYLENE GLYCOL |
| Engine Oil | 20W-50 · API · 15W-50 · 10W-50 · 5W-30 |
| Engine Oil Capacity | 4.2 qt |
| Power Steering Fluid | ATF |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
Owner complaints about the 1984 BMW 318I - E30 dominate in one area — the engine & engine cooling, 3 of 5 reports (60%), well ahead of the next concern. NHTSA has issued no recalls for this vehicle, so these are owner-reported concerns only. 0 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the engine & engine cooling pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.
All 5 complaints on record, top 3 components.
Source: NHTSA Office of Defects Investigation complaint database.
No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.
Showing 1 of 1 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| B510819 | 2024-01-16 | Electrical System | The basic conditions for initializing the power windows are not met. |
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
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Cross-vehicle references for the kinds of data on this page.
4.2 qt of 14 degrees F TO 122 degrees F: 20W-50 API SL OR GREATER, -4 degrees F TO 104 degrees F: 15W-50 API SL, -22 degrees F TO 68 degrees F: 10W-50 API SL OR GREATER, -40 degrees F TO 23 degrees F: 5W-30 API SL OR GREATER, per the factory manual.
NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.