Racor filter module on engine 471.9 |
1 | Threaded cap (fuel filter) |
2 | Threaded cap (fine-mesh fuel filter) |
3 | Threaded cap (fuel prefilter) |
4 | Hand pump |
N47.20-2145-01
Mahle filter module on engine 470.9 |
1 | Threaded cap (fuel filter) |
3 | Threaded cap (fuel prefilter) |
4 | Hand pump |
N47.20-2170-11
MANN & HUMMEL filter module, only for engine 470.9 (as of approx. 03/2019) |
1 | Threaded cap (fuel filter) |
3 | Threaded cap (fuel prefilter) |
4 | Hand pump |
W47.20-A003-02
MANN & HUMMEL filter module on engine 936.9 |
1 | Threaded cap (fuel filter) |
3 | Threaded cap (fuel prefilter) |
N47.20-2174-11
Fuel filter of Mahle filter module (engine 470.9, 471.9, 473.9) |
5 | Sealing ring |
6 | Sealing ring |
G47.20-3154-71
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 prefilter. | ||
5 | Unscrew threaded cap (2) from fine fuel filter. | Engine 471.9## ## up to 032690 with Racor filter module | |
Wait until the fuel has flowed out of the fuel filter housing before removing threaded cap (2) with filter insert. | |||
6 | Unscrew threaded cap (1) of fuel filter. | Wait until the fuel has flowed out of the fuel filter housing before removing threaded cap (1) with filter insert. | |
7 | Remove threaded cap (2) with filter element from fine fuel filter and unclip filter element by pressing at side. | Engine 471.9## ## up to 032690 with Racor filter module | |
| |||
8.1 | Remove threaded cap (1) with filter element from fuel filter 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 | |
| |||
8.2 | Remove threaded cap (1) with filter element from fuel filter and pull out filter element by turning. | Engine 470.9 with MANN + HUMMEL filter module | |
| |||
9 | Drain fuel system. |
| |
| Install | ||
10 | Replace sealing ring on threaded cap (2) of fine fuel filter. | Engine 471.9## ## up to 032690 with Racor filter module | |
Grease sealing ring slightly. | |||
11 | Replace sealing ring on threaded cap (1) of fuel filter. | Grease sealing ring slightly. | |
12 | Insert new filter element into threaded cap (2) of fine fuel filter. | Engine 471.9## ## up to 032690 with Racor filter module | |
13.1 | Insert new filter element into threaded cap (1) of fuel filter. | 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, 936.9 with Mahle filter module, engine 936.9 with MANN & HUMMEL filter module | |
13.2 | Insert new filter element into threaded cap (1) of fuel filter and lock in place by turning. | Engine 470.9 with MANN + HUMMEL filter module | |
14 | Grease sealing rings (5, 6) in fuel filter. | Engine 470.9, 471.9## ## as of 032691, 473.9 with Mahle filter module | |
Coat sealing rings with the grease supplied in the parts kit. | |||
15 | Screw on threaded cap (2) of fine fuel filter with filter element and tighten. | Engine 471.9## ## up to 032690 with Racor filter moduleCover for fuel fine-mesh filter to fuel filter module | |
16 | Screw on threaded cap (1) of fuel filter with filter element and tighten. | Engine 470.9, 471.9, 473.9Fuel filter cover to fuel filter module | |
Engine 934.9, 936.9Fuel filter cover to fuel filter module | |||
17 | Bleed fuel system using hand pump (4). | ||
| Engine 470.9, 471.9## ## as of 032691, 473.9 | ||
| ENGINE 471.9## ## up to 032690 | ||
| Check | ||
18 | Check leak tightness of fuel filter module with engine running. | Perform a visual inspection only and then switch off the engine. | |
19 | Tilt the cab back into drive mode. | Only after all maintenance operations have been completed. | |
20 | Delete "Fuel filter replacement due" or "Fuel filter clogged" fault using the diagnostic system. | Only if previous message is shown in display. | |
21 | Confirm conducted operations in maintenance booklet or in Digital Service Booklet (DSB). |