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.
2012 Mercedes Benz S350FACTORY OEM SERVICE PROCEDURE
Quick Lookups: Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Compressor Oil | 3.70 OZS. | 0.1 L | PAG 46 | S | |||
| Air Cond Refrigerant | Front | 2.35 LBS. | 1.06 KG | R-134a | S | ||
| Air Cond Refrigerant | w/Rear A/C | 2.65 LBS. | 1.2 KG | R-134a | S | ||
| Brake Fluid | N/A | N/A | MB Brake Fluid | Only use products recommended by Mercedes Benz. | S | ||
| Diesel Exhaust Fluid | Initial Fill | 6.70 GALS. | 25.36 L | Approved NOx reducing agent "AD Blue" | Approximate capacity. | S | |
| Diesel Exhaust Fluid | Service Fill | 6.60 GALS. | 24.98 L | Approved NOx reducing agent "AD Blue" | Approximate capacity. | S | |
| Engine Coolant | 12.00 QTS. | 11.35 L | MB 325.0 or MB 326.0 Anticorrosion/Antifreeze | S | |||
| Engine Oil | w/Filter | 8.50 QTS. | 8.04 L | MB Approved Synthetic Engine Oil - SAE 5W-30 or 5W-40 | As of model year 2007 diesel engines must only use 229.51 approved engine oil. Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). | S | |
| Fuel Tank | 21.90 GALS. | 82.9 L | Includes: a reserve of 2.9 gal. | S | |||
| Windshield Washer Fluid | 6.90 QTS. | 6.52 L | MB Windshield Washer Concentrate "MB Summer Fit" and water for temperatures above freezing or MB "MB Winter Fit" and water for temperatures below freezing. | Follow the Manufacturer's Instructions for the mixture ratio. | 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.