This tutorial is also available in French
➔
Air filter change on Defender Td5
Vehicle ➔ Defender 110 Td5 2002
Difficulty ➔ Easy
Time ➔ 30 minutes
Summary
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Recommendations
Do not clean the air filter with a blower because the high air pressure could damage the filter paper. The air filter would then be ineffective.
If the air filter is dirty, don't hesitate to change it. An OEM air filter costs only a few pounds.
As you will see in this tutorial, we have completely removed the air duct. This clears the workspace and makes access to the air filter easier. However, removing this hose is not essential. If you wish, to save time, simply disconnect the air flow sensor from the air filter and you can open the cover.
Required Tools
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Reference ESR4238 is equivalent to reference LR027408.
If you also want to change your Defender's engine oil, it is best to buy the Td5 service kit (DA6004P) which includes : 1 sealing washer (CDU1001L) + 1 oil filter (LPX100590) + 1 rotor oil filter (ERR6299) + 1 air filter (ESR4238) + 1 fuel filter (ESR4686).
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Remove the air duct
Op 01
Open the bonnet.
Locate where the air filter box is.
Op 02
Move the breather hose clip. Use multigrip pliers.
Disconnect the breather hose from the valve. Pull by hand.
Op 03
Unscrew the hose clip securing the air duct to the turbocharger. Use the 6 mm socket spanner.
Disconnect the air duct. Pull by hand.
Using the socket spanner instead of a screwdriver allows you to loosen the hose clip without damaging the screw head.
Op 04
Disconnect the air flow sensor connector :
•
Press the metal locking clip with your finger (2nd photo).
•
Pull the connector by hand (3rd photo).
Op 05
Unlock the 2 retaining clips securing the air flow sensor on the air filter box. Pull by hand.
Op 06
Disconnect the air flow sensor + air duct assembly from the air filter box. Pull by hand.
The air flow sensor is firmly fitted into the air filter box. Hold the air filter box in position when you pull.
Open the air filter box
Op 07
Disconnect the air pressure sensor connector.
Release the tab (2nd photo) and pull the connector by hand (3rd photo).
Do not pull on the wires to disconnect the connector. Pull on the connector itself.
Op 08
Disconnect the EGR vent pipe from the air filter box. Pull by hand.
Op 09
Unlock the 1st retaining clip on the air filter cover. Pull by hand.
Op 10
Unlock the 2nd retaining clip on the air filter cover. Pull by hand.
Op 11
Remove the air filter box cover :
•
Lift the front of the cover to tilt it (2nd photo).
•
Pull the cover forward (3rd photo).
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Change the air filter
Op 12
Remove the air filter. Lift by hand.
Op 13
Thoroughly clean the inside of the air filter box.
Op 14
Position the new air filter (ESR4238) on the box.
Op 15
Insert the air filter peripheral seal into the box. Push with your finger.
Close the air filter box
Op 16
Before replacing the cover, locate the 2 cavities of the air filter box (1st photo) into which the 2 lugs of the cover will fit (2nd and 3rd photos).
Op 17
Position the cover on the air filter box :
•
Present the cover slightly tilted.
•
Slide the cover to engage the 2 lugs into the cavities (1st photo).
•
Fold the cover down into its final position (2nd photo).
Op 18
Lock the 1st cover retaining clip.
Op 19
Lock the 2nd cover retaining clip.
Op 20
Connect the EGR vent pipe to the air filter box. Push by hand.
Op 21
Connect the air pressure sensor connector. Push by hand.
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Fit the air duct
Op 22
Fit the air flow sensor + air duct assembly onto the air filter box. Push by hand.
Op 23
Lock the 2 air flow sensor retaining clips on the air filter box. Push by hand.
Op 24
Connect the connector to the air flow sensor. Push by hand.
Op 25
Engage the air duct on the turbocharger. Push by hand.
Tighten the retaining hose clip. Use the 6 mm socket spanner.
Op 26
Engage the breather hose on the valve. Push by hand.
Fit the locking clip. Use multigrip pliers.
The End
The new air filter is installed. The engine will be able to breathe normally.
Please feel free to ask a question or to write a comment at the bottom of the page if you wish.
