Check Main Circuit Coolant Level - AP20.30-P-2050K
Engine 256.9, 264, 654, 656 in model 257
Shown on engine 256.9 in model 257.3
| Risk of injury
to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant. |
Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the overpressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| Notice | Notes on coolant | AH20.00-P-2080-01KOA | |
| Check | |||
| 1 | Check coolant level in the light/dark boundary area of coolant expansion reservoir (2). | For coolant expansion reservoirs (2) with transparent tank lower part. If the coolant level is above the light/dark boundary. ↓ Coolant level correct, check complete, no further operations steps necessary. If the coolant level is below the light/dark boundary. ↓ Check coolant level in coolant expansion reservoir (2), continue with operation step 2. |
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| Remove | |||
| 2 | Unscrew cap (1) of coolant expansion reservoir (2). | ||
| Check | |||
| 3 | Check coolant level. | If the coolant level is too low. ↓ Check coolant for leak tightness and check coolant for antifreeze content subject to separate repair order. |
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| Coolant specifications | BB00.40-P-0310-01A | ||
| Install | |||
| 4 | Seal coolant expansion reservoir (2) with cap (1). |