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.
1985 Mercedes Benz 300CDFACTORY OEM SERVICE PROCEDURE
Quick Lookups: Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Automatic Transmission Fluid | 3.0L Eng | California Emissions | 6.30 QTS. | 5.96 L | MB Automatic Transmission Fluid | S | |
| Automatic Transmission Fluid | 3.0L Eng | Federal Emissions | 6.60 QTS. | 6.24 L | MB Automatic Transmission Fluid | S | |
| Brake Fluid | 0.50 QTS. | 0.47 L | Manufacturer's approved fluid only. | S | |||
| Differential Gear Oil | 3.0L Eng | 1.10 QTS. | 1.04 L | SAE 90W or 85W-90 | S | ||
| Engine Coolant | 3.0L Eng | 13.20 QTS. | 12.49 L | MB Anticorrosion/Antifreeze | S | ||
| Engine Oil | 3.0L Eng | 8.50 QTS. | 8.04 L | SAE 5W-20, 5W-30: Below 14Deg F (-10Deg C). SAE 10W-30: Above -14Deg F (-20 Deg C). SAE 20W-40, 20W-50: Above 32Deg F (0Deg C). SAE 15W-40, 15W-50: Above 5Deg F (-15Deg C). SAE 10W-40, 10W-50: Above -4Deg F (-20Deg C) | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). | S | |
| Fuel Tank | 3.0L Eng | 21.10 GALS. | 79.87 L | S | |||
| Power Steering Fluid | 3.0L Eng | 1.50 QTS. | 1.41 L | MB Automatic Transmission Fluid | S | ||
| Windshield Washer Fluid | 3.0L Eng | 3.20 QTS. | 3.02 L | MB Windshield Washer Concentrate Fluid S | S | ||
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.