Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1984 633CSi.
The 1984 BMW 633CSi, documented in the 1984 BMW 633CSi Overview, specifies a 5.3‑qt oil capacity and recommends 20W‑50, 15W‑50, or 10W‑50 API SL viscosity. Owner feedback records a single complaint focused on Vehicle Speed Control, accompanied by one recall, suggesting limited reported concerns for this model year. This scarcity of complaints marks the 1984 iteration as a relatively low‑issue entry within the model’s broader reliability history.
Fluid capacities, tune-up values and fuel economy at a glance.
0–60 mph, quarter-mile, horsepower and torque from independent road tests.
Independent road tests for the 633CSi of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.
| Year | Trim / engine | 0–60 | ¼ mile | HP | Drivetrain |
|---|---|---|---|---|---|
| 1983 | Coupe 3.2L I-6 | 7.70 sec | 16.00 sec | 181 hp | RWD |
| 1983 | Coupe 3.2L I-6 | 8.50 sec | 16.50 sec | 181 hp | RWD |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 5.3 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 | 3.8 Pints |
| Engine Coolant | ETHYLENE GLYCOL |
| Engine Oil | 20W-50 · API · 15W-50 · 10W-50 · 5W-30 |
| Engine Oil Capacity | 5.3 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 633CSi dominate in one area — the vehicle speed control, 1 of 1 reports (100%), well ahead of the next concern. None of this vehicle's 1 recall campaigns target the vehicle speed control, so those reports read as owner-reported wear-and-tear rather than an acknowledged defect. 0 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the vehicle speed control 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 1 complaints on record, top 1 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 1 of 1 campaigns on record for this vehicle.
THE POWER BRAKE BOOSTER MAY HAVE BEEN IMPROPERLY MACHINED CAUSING STRESS AND POSSIBLY CRACKS IN THE MASTER CYLINDER WHERE IT IS ATTACHED TO THE POWER BRAKE BOOSTER. Remedy: COMPONENTS WILL BE INSPECTED FOR IMPROPER MACHINING AND, IF FOUND, MASTER CYLINDER AND POWER BRAKE BOOSTER WILL BE REPLACED.
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.
Decode factory build data for a specific vehicle by VIN.
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Cross-vehicle references for the kinds of data on this page.
5.3 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 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.