Racor filter module on engine 471.9 |
3 | Threaded cap (fuel prefilter) |
N47.20-2196-01
Mahle filter module on engine 470.9 |
3 | Threaded cap (fuel prefilter) |
N47.20-2194-11
MANN & HUMMEL filter module, only for engine 470.9 (as of approx. 03/2019) |
3 | Threaded cap (fuel prefilter) |
W47.20-A003-02
MANN & HUMMEL filter module on engine 936.9 |
3 | Threaded cap (fuel prefilter) |
N47.20-2195-11
Danger | Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel. | No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. | |
Warning | Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | |
Warning | Risk of injury caused by body parts being pinched or crushed as cab is tilted | Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure it with the safety strut. | |
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
Topical note | Notes on tilting the cab | ||
| Remove | ||
1 | Open cap of fuel tank and close again. | This reduces the overpressure in the fuel tank. | |
2 | Tilt and secure cab. | ||
3 | Clean are surrounding fuel filter module. | ||
4 | Replace fuel filter. | ||
5 | Unscrew threaded cap (3) of fuel prefilter. | Remove the threaded cap (3) with filter insert after the fuel has flowed out of the fuel filter housing. | |
6 | Remove threaded cap (3) with filter element from fuel prefilter and unclip filter element by pressing at side. | | |
7.1 | Remove threaded cap (3) with filter element from fuel prefilter and unclip filter element by pressing at side. | Engine 471.9## ## up to 032690 with Racor filter module, engine 470.9## ## as of 032691, 471.9## ## as of 032691 with Mahle filter module, engine 473.9 with Mahle filter module, engine 936.9 with MANN & HUMMEL filter module | |
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7.2 | Remove threaded cap (3) with filter element from fuel prefilter and pull out filter element by turning. | Engine 470.9 with MANN & HUMMEL filter module | |
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| Install | ||
8 | Replace sealing ring on threaded cap (3) of fuel prefilter. | Grease sealing ring slightly. | |
9 | Insert new filter element into threaded cap (3) of fuel prefilter. | ||
10 | Screw on threaded cap (3) of fuel prefilter with filter element and tighten. | Engine 470.9, 471.9, 473.9Fuel prefilter cover to fuel filter module | |
Engine 934.9, 936.9Cover, fuel prefilter to fuel filter module | |||
11 | Bleed fuel system. | Start engine and allow to run at increased idle speed. The fuel system is bled automatically. | |
| Check | ||
12 | Check leak tightness of fuel filter module with engine running. | Perform a visual inspection only and then switch off the engine. | |
13 | Tilt the cab back into drive mode. | Only after all maintenance operations have been completed. | |
14 | Delete "Fuel filter replacement due" or "Fuel filter clogged" fault using vehicle diagnosis system in engine management (MCM) control unit. | Only if previous message is shown in display. |