75ZT Community

Once again the MOT is coming to it's date 24th April, so today i started to get the NUK ready.

Since the last MOT it has had a new rear subframe with upper and lower arms, drop links.

Front brake hoses, had it's usual autumn service beginning of September, oil, oil filter, air filter, fuel filter, PCV (Positive Crankcase Ventilation Valve) filter, pollen filter, clean manifold & EGR (Exhaust Gas Recirculation Valve) also MAP sensor.

Four new tyres and four wheel alignment.

Today the air filter was changed.

Remove engine cover three 8mm bolts.
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Once you have removed the 8mm bolts, you can lift the engine cover free from the engine bay, and lay it down safe.
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The next procedure is too remove the air ducting, or at least the two screws holding it to the manifold.
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Put the two screws safe with the engine cover.
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You can now pull the duct backwards to release it from the air filter cover.
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If you were only changing the air filter, that would be enough for you to be able to removed the filter cover, but as i am also changing out the PCV filter i remove the duct altogether, this also gives me chance to inspect any hose etc below.

Remove the three retaining bolts 8mm on some cars, 10mm on mine i have changed them.
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This now slides out from the slam panel
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Add it to the engine cover along with the bolts.
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If it was 12 months since i changed the manifold then that would be removed also, but since it was swapped out in September then it will just be checked along with the EGR.
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To do this i removed the large jubilee clip.
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Then i shine a torch into the EGR and into the manifold to check for any gunk.
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I'm happy with both, so no change until next September 2023
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Refit the hose.

Now the air filter cover can be removed to change the air filter, there are five allen key captive bolts 5mm to undo two at the rear and three on the top of the cover.

Start with the left rear one.
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The the right corner bolt.
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At the same time remove the hose attached to the side of the cover, it is in a clip, mine has broken so no need to unclip it.
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You can now undo the top three bolts on the cover.
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Remove the oil cap.
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The air filter cover can now be lifted from the cam cover.
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Check the air filter mine is not that bad really but it will still be changed out.
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Add the clean filter making sure it is seated correctly, both ends.
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If you were only changing out the air filter you could now refit the cover.
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Note i have the MAF (Mass Air Flow Sensor) sensor mod on my cover, which helps you gain access to the MAF insert without removing the cover.
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Line up the cover and once you are satisfied, the bolts can now be nipped up again start at the rear left, make sure this has taken hold.
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Right corner again make sure it's taken hold.
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Top three next nipped up only.
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Once all have be nipped up, you can then do another 1/4 turn on each one.

Offer the air duct back to the car inserting into the slam panel first.
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Then onto the air filter cover.
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Add the two centre holding screws to the air duct.
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If that is all you are doing the air filter the engine cover can be refitted.
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Seeing that the PCV filter is being checked and changed out i did not fit the air filter or engine cover back but have done so for those who just want to change out the air filter.

PCV filter to follow.

Thank you Steve for documenting your maintenance work. These step-by-step instructions are helpful (as always).
BTW that reminds me to check the PCV filter and the EGR valve ...

This is part of how i get my tourer ready for it's MOT every year, i like to coincide the service near to the MOT date as possible. 24th April.

Following on from the above post after changing the air filter, next is the PCV filter.
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It will look like this but dirty when removed, i have whole units so i can change them out, what you will have is just the blue filter, an O-ring and some seals.
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First you need to remove the injector loom, this is held on with three torx bolts, a 5mm socket will undo them nicely.
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Remove the three torx and put them safe.
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Next step is to undo the four injector connections.
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You do this by pressing the end of the connector, on all four they will pop up.
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You then pull the connector of the the injector x four
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Lift the loom and set it back into the air filter box.
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Now you can undo the four allen key captive bolts holding the PCV unit on to the cam cover.
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Two in the middle
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One on each corner.
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The unit with the filter connected to it is now ready to be lifted out.
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You can see from this filter it basically is still ok as it was changed in September 2022, it will still be swapped out, has i do this twice a year.
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Next you will need to fit the new one, as above i already have an whole unit with a new filter added so it's a straightforward swap over, you will need to remove your old filter and add the new one to the unit which is easy.
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Lower the changed out filter into place and nip up the bolts, do the two corner ones first.
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Then the tow middle ones, now turn all four another 1/4 that's enough.
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Now you can refit the injector loom, push the connections firmly onto the injectors making sure you hear a click, double check they are secure.
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Add the three torx screws back onto the loom to hold it into place.
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The PCV filter is now changed and fitted, all that remains now is to refit the air filter cover, air duct, and engine cover.

This was covered in the above post for the air filter.