X-Type Jaguar Information
With the engine cover
removed you can see and
easily access the MAF sensor
in the middle of the engine
bay at the top of the air
ducts. (Arrowed)
Locate the MAF sensor on the large black
plastic pipe from the rear of the air filter
housing – it is rectangular and has a
wiring connector attached. There are two
retaining screws visible and accessible
from the top (Arrowed).
Top Tip: Check the connector carefully as
there have been reports of wires coming
adrift from the plug – it is possible to split
the plug open to restore the wires but
they are very short with little free play.
Remove the wiring connector to the MAFS by pressing down on
the lever to release the tang (Arrowed in picture above), and
carefully pull and jiggle the connector until free, set it aside
away from any danger of shorting.
Be careful not to pull or strain the wires as they are short and
there is not much room to manoeuvre.
Diesel MAF Sensor Wiring Sequence:
(looking from front of car toward windscreen)
White / GreenBrown / Blue Brown / Blue White / Blue
X-Type Jaguar Information
Remove the two torx screws securing the MAFS to the air duct
and store for re-use, be careful not to drop them into the engine
bay!
When removing the MAF, make sure you don't pull on the
wires, but gently hold the plug. Lift and pull the unit free from
the air pipe – underneath the rectangular top is a long plastic
tube that sits in the air flow of the pipe. Take care not to snag
either the tube or wire contacts it protects.
Examine the MAF Sensor and you should be able to see
two pairs of thin wires held in place in the MAFS tube.
Mine had a dull grey coating on the wires (hard to
photograph clearly).
Spray electrical contact cleaner on the wires in the tube through both the side and bottom
apertures. I used Maplin’s Electrical Cleaner Spray http://www.maplin.co.uk/electronic-solvent-
cleaner-30056 which evaporates away and does not leave any residue.
The grey powdery coating cleaned off leaving a shiny
surface after a few quick bursts of spray (again hard
to photograph but a definite change is noticeable)
Warning: *DO NOT* attempt to scrape or touch the wires with the spray tube or any other
instrument as they are VERY fragile and the sensor is an expensive piece of kit to replace. (£80+)
Re-Assembly:
First - Ensure the spray cleaner has fully dispersed and the MAF wires are dry, then just reverse the
procedure above:
Wipe the exterior casing and re-seat the sensor in its housing with the arrow pointing to the
rear of the car
Replace the 2 securing torx screws
Re-Connect the wiring to the MAF – (When you reconnect make sure that it really is firmly in
and that none of the wires are broken).
Replace the engine cover
Job done!
