T5.1 Service - Fuel, Air and Cabin Filters

[Fredo44]

Hi all wondering if someone can please clarify.

I change my oil every and oil filter every 10,000km - normal schedule states 15,000km intervals.

So the fuel filter would require changing every second service? So every 30,000km interval?
Air filter every 15,000km - could this stretch to 30,000km?
Cabin filter - every 30,000km?

Is there a quick reference user guide to this sort of stuff somewhere?

[Perthdisco]

Hi all wondering if someone can please clarify.

I change my oil every and oil filter every 10,000km - normal schedule states 15,000km intervals.

So the fuel filter would require changing every second service? So every 30,000km interval?
Air filter every 15,000km - could this stretch to 30,000km?
Cabin filter - every 30,000km?

Is there a quick reference user guide to this sort of stuff somewhere?

Cabin filter I find annually is even too frequent. Like the air filter you can give these a tap or blow the dust off and get 2 years if your not doing huge kms or arduous conditions.


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[Transporter]

Air filter every 30,000km. Don’t clean or even worst blow with compressed air to clean it. Besides, the polyurethane seal of the air filter doesn’t have to seal properly, especially in the hinged air boxes.

Fuel filter 30,000 or 45,000 or even max 60,000km could be okay, if you always fill up at the reputable servos. I use fuel additive every time I buy fuel and when changing fuel filter the inside cartridge is always in good condition (usually at 30,000km intervals).

Cabin filter however I change yearly and the same as with the air filter don’t clean it.

[The_Hawk]

How many km's do you do every year in this vehicle?

[Fredo44]

I only travel 15,000 km per year and live in Adelaide.
The van is only driven on weekends and predominantly at highway speeds 80-100 km/h on bitumen - no dirt roads.

I've started doing my own general servicing and will refer to mechanic for things like belts, transmission etc.

I fill up using Mobil diesel at X-Convenience Stores.

[Fredo44]

Thanks mate - yeah, i've been using a fuel additive also about every 5th refill. I notice the benefits but think it's overkill for every top-up.
Also use LIQUI MOLY Engine Flush Plus between every oil change.

[Perthdisco]

T5.1 Service - Fuel, Air and Cabin Filters

All filters work better and better as they ‘block’ right up to the point they are too blocked. On a truck the air filter will be replaced when intake suction exceeds a maximum level not to an arbitrary time. A new filter is not a better filter.

A light tap is incredibly effective and if you own a 4wd driving in dust an enormous amount of surface dust collects which is easily removed.

I actually use a vacuum cleaner from time to time as also keep the intake box clean from dirt and debris that collects before the filter.

Fuel filters cannot usually be visually inspected so need disciplined changes but air and cabin are the mechanic$ friend like brakes to replace early and often.

[Fredo44]

Thanks guys...
Whats the schedule for coolant, brake fluid and power steering fluid?

[Perthdisco]

Thanks guys...
Whats the schedule for coolant, brake fluid and power steering fluid?

Coolant if pink OAT style is 7 years

Brake is 3 years

PS is 5-7 years if you have it as the Tiguan is electric


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[Rebuild]

fuel filter is 60K change AFAIK

[Kombi]

I reckon the verdict is still out regarding to clean or to replace air filters. I am a farmer and have blown air filters out with compressed air for years. Farm machinery usually gets engine oil and filter every 250 hours, a thousand hours a year could be compared to 50000km a year I would guess. Engine air filters and fuel filters gets replaced every thousand hours. Some farmers and contractors also believe not to clean filters but only to replace, but as I said I’ve been cleaning air filters for years without problems. Obviously farm machines often work in extremely dusty environments hence bigger and more expensive air cleaners, I replace engine air cleaner filter only every 50kkm, without any cleaning in between. I drain engine oil every 5kkm and oil filter every 10kkm, mainly because my remapped engine runs high oil temperatures.I do 99% of my driving on sealed roads and long distance in country Australia, I reckon maintenance should be determined not only by mileage but also driving conditions, the manufacturers service schedules would be based on averages.

[Perthdisco]

I reckon the verdict is still out regarding to clean or to replace air filters. I am a farmer and have blown air filters out with compressed air for years. Farm machinery usually gets engine oil and filter every 250 hours, a thousand hours a year could be compared to 50000km a year I would guess. Engine air filters and fuel filters gets replaced every thousand hours. Some farmers and contractors also believe not to clean filters but only to replace, but as I said I’ve been cleaning air filters for years without problems. Obviously farm machines often work in extremely dusty environments hence bigger and more expensive air cleaners, I replace engine air cleaner filter only every 50kkm, without any cleaning in between. I drain engine oil every 5kkm and oil filter every 10kkm, mainly because my remapped engine runs high oil temperatures.I do 99% of my driving on sealed roads and long distance in country Australia, I reckon maintenance should be determined not only by mileage but also driving conditions, the manufacturers service schedules would be based on averages.

As long as you are carefully tapping or vacuuming or blowing the dirt off the filter surface and not pushing deeper in what can possibly be the problem?


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[Transporter]

As long as you are carefully tapping or vacuuming or blowing the dirt off the filter surface and not pushing deeper in what can possibly be the problem?


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Increasing the size of the pores in the filter, right up to tearing it. Polyurethane foam seal doesn’t have to seal reliably when you reinsert the filter. Of course you do what you want, ...however, it’s not the best practice, though it won’t kill your engine instantly. You just let in more dirt through the filter.