Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1991 Mercedes Benz 350SDFACTORY OEM SERVICE PROCEDURE
Fluid Capacities - Diesel Engine
FLUID CAPACITIES - DIESEL ENGINE
| Application | Quantity | |
|---|---|---|
| 300D Turbo (5 Cyl.) | ||
| Automatic Transmission (ATF) | 5.8 Qts. (5.5L) | |
| Cooling System (Includes Heater) | 9.5 Qts. (9.0L) | |
| Crankcase (Includes Filter) | 7.9 Qts. (7.5L) | |
| Differential (SAE 90W) | 1.2 Qts. (1.1L) | |
| Power Steering | 1.1 Qts. (1.0L) | |
| 350SD & 350SDL Turbo | ||
| Automatic Transmission (ATF) | 6.5 Qts. (6.2L) | |
| Cooling System (Includes Heater) | 10.6 Qts. (10.0L) | |
| Crankcase (Includes Filter) | 8.5 Qts. (8.0L) | |
| Differential (SAE 90W) | 1.2 Qts. (1.1L) | |
| Power Steering | 1.4 Qts. (1.3L) | |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.