Volkswagen Jetta TDI Fuel Filter Replacement ~ Common Rail Diesel

[@HumbleMechanic]

Now that we have access to a TDI, what kind of videos do we need to do? This one will need a timing belt soon ;)

[@glengill8904]

12' a3 tdi just discovered I've got a parasitic drain somewhere,new battery&charged fully,drove twice,sat for 3 days in bitter cold&dead,no aftermarket electronics.Any common places to start w/this gen tdi?

[@MadMaxx570]

If its a model with swirl flaps, have a look at those! Terrible things, much better to use the aluminum intake without them, for engine longevity. Also i had myself a laugh after first having a Passat TDi be dead from swirl flap failure, and then to my surprise i found out the Mitsubishi Outlander also uses a VW 2.0tdi! Sans swirl flaps, luckily!

[@jetonkabashi6112]

EGR, maybe which upgrades an tdi will do

[@kh_trendy]

I'd love to see info and opinions on the intercooler icing issues!

[@jottow680]

Waggle? =Wiggle+wabble

[@CAPabloco]

Thanks Charles for including TDIs in your DIYs. There are more of us out here than one might think. :)

[@AndreiIR000]

indeed! I've been owning only TDIs since 2001.

[@briansmith9258]

Right! So hard to find stuff for cjaa. Keep the videos coming! Thank you!

[@Omg_Noodles_PUBG]

Checking in. Have a 2015 Passat TDI and 2015 Audi Q7 TDI. Thanks

[@Roman-en9jw]

Lmao eight i only owned 3 cars in my lifetime and they were old volkswagen tdi

[@simonhamelin9359]

Charles VW tech here and I'm impressed you replaced the filter with almost zero spill

[@HumbleMechanic]

I’ve done one or two ;)

[@TheOutlawJohneLove]

The whole earth (should) appreciate people like you . Thank you

[@IliescuBenyamin]

Without a scan tool: pull off the top-left fuel hose from the cap, pull the cap off and see what is the fuel level relative to the container. Put the new filter back in and let it soak some diesel in, top it to the same level with fresh diesel, put the cap back on, if you went too high, the surplus will exit trough the cap hole, after tightening the screws in a star pattern, put the hose back on, cycle the key 2 times and it starts up like nothing happened!

[@user-gl2eq2ly4g]

Me same Perfect Thank y'all

[@jokerscape]

So glad your doing TDI stuff I really hope you cover them enough to help me solve my bkd issues

[@jasonm456]

In addition to enjoying his excellent mechanic tutorials, I love learning new words from Charles. Today’s new words are: Burble, Sploosh, and Woggle. #themoreyouknow

[@efeball970]

Yay TDI's! Not sure about the CR TDI's but you can remove the filter housing of PD TDI's, it's held on by some tabs. If you dislodge the housing from the tabs before removing the cap, you can take the housing off the car to empty it into a bottle and/or cleaning the inside of the housing. Having the housing off the car also makes it easier to fit the new filter. They're super old but more PD TDI videos please!

[@kevinsandri6597]

Yes! I already do this myself, but I'm still watching the video!

[@katanamd]

I just did a timing belt and thermostat on one of these. Fun stuff. Looking forward to more.

[@goskidmark]

I have owned a CJAA VW Golf TDI for 8 years now and you do not have to use VCDS to prime the filter housing, but it is the most efficient way to ensure all of the air is bled out of the fuel lines. Personally, I fill the housing up to a little over half way and put the filter back in slowly. This ensures that the housing is "roughly" all the way full without any overspill and you can cycle the key 2-to-3 times to get the air out and ensure that you do not run the HPFP (High Pressure Fuel Pump) dry. The biggest discrepancy on this car is arguably the HPFP. If buying a used GOLF TDI, ensure that there is no metal shavings in the fuel filter housing or clinging on the inspection screen on top of the HPFP before signing any paperwork.

[@davesnothere3425]

Doesn't work on all. Key cycle does absolutely nothing on my 14

[@mercuryoak2]

​​@@davesnothere3425 strangely I have a 2014 and mine doesn't have an issue and I replace my fuel filter twice and I do it the same way that this guy does it.. make sure those fuel in the filter housing I even put some fuel treatment additive in the filter housing to give the injectors a good clean. And I never used vcds or any scan tool bulshit to prime the fuel system.. if you cycle the key on you can hear the fuel pump in the fuel tank running then shut off.

[@Cristian121212100]

Vcds is not even that expensive, obd11 is even cheaper, just bleed it, vcds and obd11 pay for itself after the first fuel filter change

[@getur99]

Was just going to replace mine without doing a KZbin search because it looked easy enough. Glad I did though. Some useful tips like using the pig mats

[@DevineDigital]

Still kicking ourselves for selling our TDI back to VW back in the day… I wanted to buy one of the cheap ones but didn’t have the cash at the time. Thanks for posting these videos should I ever get another TDI, they are nice to go back and lol at to double check yourself.

[@sirrevalot2543]

Good stuff man! My DD is a 2015 GSW that I bought new just before the dieselgate, ended keeping and getting it corrected by the dealer. The extra $$ for keeping it was good too, have it on KermaTDI tune for a few years now. Super fun to drive. ✌

[@robc5955]

Great vid, I know lots of people also top up the filter housing before closing up……but I would strongly recommend not doing that if you run the HP pump dry even for seconds it’s cattle trucked, also in vcds the command can also be called ‘run transfer fuel pump’ I doubt you guys have the latest TDis (thanks to dieselgate?) but my recent TDI here in the uk where it would be cheaper to put gold in your car, doesn’t seem to run the low pressure pump unless and until the engine is running, so the ignition on/off scenario wouldn’t necessarily work.

[@lifeinmy30s90]

Dude yes more TDI stuff- love it

[@300DBenz]

This is not a hard job, but I makes me appreciate my OM617 filter change procedure even more: unscrew filter, screw on new filter, use primer pump to bleed system, drive away.

[@pebjr6621]

Nice video! Love to see a coolant flush on a 2009 TDI and a 2015 TDI. Brake flush using a power bleeder. Like to see a step by step timing belt change on a 2015 TDI GOLF. How to put the front lock carrier in the service position. Upgrade 09 jetta factory radio to new radio with blue tooth, Can Gateway module, etc. Love to see more tutorials on VCDS. I live 2.5 hrs east of you and I don't mind if you want to use my 09 TDI Jetta or 2015 Golf TDI for any videos. I also have a 2021.5 VW Atlas

[@thomasdeir6212]

Awesome to see more TDI content!

[@georgestweeter]

I typically use some fresh ATF to lube the o-rings on diesel fuel filters. ATF is a bit more slippery than Diesel, so i find it's better for avoiding pinching an O-ring. Also it mixes very easily with diesel and diesel engines can basically run on the ATF anyway. So a few drops of ATF in your diesel fuel isn't going to harm anything, in fact most likely the opposite. There's lots of detergents in ATF that can help clean carbon deposits. An old farmer's trick for having an injector that isn't spraying well is to pre fill you fuel filters with ATF and run it.

[@danielbrydon3869]

Do NOT do that on a CR engine. Sure fire way to destroy the HPFP is mixing anything in the diesel. I've had to replace the complete fuel system of a friends audi a4 because someone accidentally misfueled it with only a few litres of petrol

[@timcass5759]

Fantastic! Very enthusiastic and straightforward. Thanks for sharing this with us.

[@MadMaxx570]

Started as a mechanic this month, first job was this, replacing the vacuum\lift pump, and an injector on a 2.0tdi. Little did i know, they hadnt done their research, and the customer was right in thinking it ran on only 3, as it had eaten a swirl flap, absolutely ruining the valves, head and block on that cylinder. RIP!

[@neilstevens7837]

i have a 2013 tdi wagon and this video was very helpful so thank you very much i can change it with confidence now.

[@davidjeffery9972]

I'll be doing my 07 1.9 TDI Jetta service soon very satisfying doing your own service.

[@E30Beamer]

This is the same process I follow when changing my 2015 TDI fuel filter. 👍

[@chrisk5648]

Hi Charles, what is the cleaner spray you used to clean the top of the filter housing (1:34)?

[@thomasduncan8289]

YESSSS MORE TDI STUFF PLEASE

[@JaimieSigamoney]

Thanks for this video, I am personally still waiting on the R32 turbo build you did the upgraded clutch kit last

[@HumbleMechanic]

Same! That car is at the body shop. Once it comes back, we are all in on r32

[@JaimieSigamoney]

@@HumbleMechanic appreciate the response, really looking forward to it 👍🏽

[@jetta.josh4]

Thanks for this VERY informational video. I’ve changed mine like twice, and I learned a bunch of small tips from this video. Thank you so much!!

[@magellanicspaceclouds]

I think you meant informational.

[@jetta.josh4]

@@magellanicspaceclouds lol must’ve had a brain fart! thanks haha

[@toothferrin]

@3:15 “woggle” - which of coarse means to walk something off of it’s housing whilst wiggling

[@djolecar88]

I swapped those T30 bolts with 10 mm hex bolts that I oil tempered. The goal is to swap everything to a 10 mm.

[@JettaJack]

Things have changed from the ancient days of the early 21st century when you would go to your local “diesel” seller that pushed his own mix of “bio-diesel” for 20 cents less. That was when you’d pour the dregs out of the filter. Now in these modern times you might even see a cetane rating on the pump! 😱 But seriously, Charles, nice video. Doesn’t show the bleed screw like my 06, nor the flange gasket of my 15, but a good procedure nonetheless, and truthfully these filters are not so expensive that the DIYer can change them at the 10k oil service interval. 👍👍

[@grantlewis7885]

Thanks. Just bought one. Have never owned anything than a American V8.

[@aaronshafer775]

Saw Charles rolling through Salisbury yesterday in the Yellow Golf R! Good looking car.

[@HumbleMechanic]

Yes!!! Visiting NTI, and Paul

[@aaronshafer775]

@@HumbleMechanic I was like “what’s the possibility it’s actually him”? Can’t mistake that majestic beard!! 🤣🤣🤣 Keep up with the great videos and I don’t even own a VW…

[@HumbleMechanic]

Cheers man thank you

[@fredgasburger5969]

I changed these all the time. So easy and doesn’t take much time either.

[@numberpirate]

What about just pouring diesel back in afterward instead of scantooling it?

[@InternationalCombustion]

Wooooo TDI stuff I’m so upset I’m not going to be able to see you at Lindsey VW as it’s pretty close to me make sure to post when you’ll be back up there👍👍👍

[@HumbleMechanic]

Ah man that’s a bummer. I think Paul and I might head back up when the weather doesn’t suck!!!

[@InternationalCombustion]

@@HumbleMechanic That’d be awesome maybe get your guys’ insight on my tdi that’s been tuned with the cr170 and some other stuff done to it too👍

[@sturmantheyounger]

Thank you for the CR diesel videos!!

[@Noah1985HA]

Just have some diesel I a container and pour som into the housing after you put the new filter in... fill diesel all the way to the very top then you will be good when you seal it back up

[@mattyork788]

Do you have a video on the fuel pump. Mine is leaking and looking to replace it

[@mattalki]

I'm happy to see more TDI stuff here. I have a 2015 Golf TDI, a 2014 Beetle TDI, and my trusty crusty 1981 Rabbit Diesel. If you can do some stuff on the mk7, that would be great too (If you have access to one!)

[@HumbleMechanic]

MK7 is a little tougher since they are so limited

[@melissahutchison8297]

Great videos! I love how meticulous you are with your work. Question, What is the brand of your Fluid/oil extractor vacuum pump you use in your shop. Wanting to buy one for a mechanic friend :) Thanks so much!

[@baula338]

i too would like to know

[@fintonking7525]

The screwdriver type torx tool should be adequate to tighten down those five screws. Very easy to strip the threads bearing in mind the 'O' ring (providing undamaged) is what seal's the fluid from escaping.

[@TheShakir98]

Thank you, just did mine watching this vid

[@radiator1979]

Nice video. What do you think of Filtron filter. Are they any good.

[@cesarortega6615]

I was going to do that on mine but I really wish you also changed the timing belt so I can see if there any special or specific steps

[@HumbleMechanic]

Soon! We will do a belt on this car.

[@cesarortega6615]

@@HumbleMechanic first of all thanks you for the fuel filter replacement I didn't know it was every 20k intervals, Im new WV owner and TDI owner, trying to find answers to some few problems. And the timing belt is the next big service I need to do it is due or passed due

[@jetguy1205]

Keep the TDI stuff coming

[@fusnowtiger]

The time has finally come. If you want to do more diesel stuff, my V10 TDI is up for sale! :). Mmmm, tandem pump fun to be had! Less fun, but much more reasonable Golf Alltrak will be it’s replaceable.

[@Madkalibyr]

Are you near oregon state by any chance?

[@fusnowtiger]

@@Madkalibyr Atlanta GA unfortunately

[@TravisMontesano]

I have a 2015 tdi jetta with a straight pipe rawtek system with malone tune. It really wakes the car up pretty peppy for a 4 cylinder front wheel drive. I filter all my diesel fuel through a 2 micron transfer pump before filling any of my diesel vehicles. I am looking at doing an amsoil oil filter bypass next. Do a video on that i'm curious where you would choose to put the filter.

[@tpmarkham]

I have a 2013 Mark VI TDI now and love that priming option with the VCDS. When I had my Mark IV, was that priming option available? I don't recall it was. Thanks

[@danet1956]

Does that group 035 run the both pumps simultaneously like previous versions of VCSD? I'm only hearing the lift pump

[@MikeLiteraus]

Are the TDI engines more reliable than the TSI?

[@gabrieldetwiler7078]

Most of the time, yes. Especially when tuned and deleted

[@MrBasstothemax]

Yes but the new tsi's seem to be pretty solid as well

[@andrevos7783]

@@gabrieldetwiler7078 agreed. EGR delete and a tune makes them super smooth and powerful.

[@gabrieldetwiler7078]

@@MrBasstothemax oh they are no doubt. My 1.8 tsi in my alltrack has been great

[@gabrieldetwiler7078]

@@andrevos7783 absolutely. Diesels don’t like anything emissions

[@brownah]

Charles, I want more Paul and Charles shenanigans

[@HumbleMechanic]

Working on that video now

[@u4ia420]

How do you feel about diesel additives?

[@richcheema]

Single best additive you can put in your tank is a cetane booster like 2-ethyl hexyl nitrate. Your engine and DPF will thank you for it. I add chemicals for lubricity too to protect the injectors. Now modern oil refineries remove sulfur from diesel, polar compounds that prevented wear are stripped out. In Europe you can order Mannol diesel additive with ester compounds as Wear inhibitors/lubricant plus medium chain alcohols like butanol which booster the cetane rating. I also add some hydrotreated light naphthalene which a diesel engine will tolerate. That will clean carbon deposits more effectively than diesel. Hope this helps. I'm not a petrochemical engineer but I studied chemical engineering so close enough

[@u4ia420]

@@richcheema outside of the Mannol, what other name brand products do you use?

[@Tomd4850]

Nice, I just overviewed this with someone on my Dad's PD TDI

[@douggrenard91]

Always learn something from your videos. Thanks

[@HumbleMechanic]

thank you!

[@mariobeaudoin9733]

Hi Nice video... if you cleaned the bowl and you don't have the scan tool, can you just fill the bowl with the new filter in an then re-install the filter cover?

[@briansmith9258]

Why’d you clean it? Not necessary unless metal in there.

[@mariobeaudoin9733]

@@briansmith9258 I though there could be some water and other deposit coming from the fuel tank

[@briansmith9258]

@@mariobeaudoin9733 I understand. Just asking.

[@pitbullzz9046]

Where is your under bonnet light from?

[@ketillundsrensen6167]

Is the diesel dark you have a bad pump on the side of the valve cover. Seen that a lot of times on VAG

[@HumbleMechanic]

Ive only seen that on PD engines, where the injector seals leak.

[@ketillundsrensen6167]

@@HumbleMechanic PD are the worst. But also the moste commen amongst those VAG's I have done work on.

[@RandomlnternetGuy]

YES TDI CONTENT

[@adrmih8690]

can i use the Snap on scanner tool for purging the air before starting? what function?

[@HumbleMechanic]

I’d assume so. Not sure where to find it in a snap on scanner

[@adrmih8690]

​@@HumbleMechanic what kind of function am i looking for? activate the fuel pump?

[@HumbleMechanic]

VCDS calls it fuel tank empty

[@adrmih8690]

@@HumbleMechanic thank you, ill try and let you know

[@sween187]

I change mine every 5k miles when I'm doing the oil filter and while I'm there the air filter too, for an extra couple quid it's worth it. I've 200k plus on the engine, hopefully many more miles to go.

[@isaacshively6705]

That's unnecessary, you only have to change your fuel filter every 4-5 oil changes... There is no benefits from doing them that often

[@mikemx55]

@@isaacshively6705 on some countries we have really dirty fuel, low grade. But even I agree, every 5k is way too frequent. However, the first car I got, it must have gotten so neglected that I actually felt increased performance after changing that filter

[@isaacshively6705]

@@mikemx55 mehhh diesel is usually pretty clean no matter where you are just got to worry about water in it and if VW's are like my wife's truck it'll have a water in fuel light and if your car was neglected you just change the filter run it for a day and change it again and you'd be good, diesel is cheaper and easier to make so they usually don't cut corners

[@yamahayz0426]

I do mine every other oil change, i run my oil 8,000 miles, do the fuel filter every 16,000. All had been good, Get all your parts online. Its amazing the dealer charges $45 for a fuel filter when the same one online is $12.

[@briansmith9258]

@@yamahayz0426 where you shopping? Their $20+ online.

[@nsnake62]

Hey I need to put winter additive in mine is it a 50 50 ratio with diesel the bottle doesn't say and I can't find any guides on doing this.

[@Nefariousrouge]

What I would really like to see is the "paint and pray" method of timing belt replacement. I have never been desparate enough to try it, but it would be interesting to see.

[@ryanbarrimore9703]

This is great stuff! I have the same car but I paid someone to do this last time. Will there be anything else on this type of car that you will be showing? Thanks for showing this as this is a great help for when my filter is next due.

[@guilhermeg345]

Changing the fuel filter is a nightmare for me. Everytime I changed it, somehow air got trapped and could never start up the engine. Seems to be a common problem on this cr tdi's, I did everything by the book, pre filled the filter, primed with vcds plenty of times but it always took many tries and me ending up having to vacuum through the return line to get it working. Now the weirdest part was when I primed by vcds to bleed the air out, I removed the fuel return line to the tank to see if I could remove airlock wherever it was, I pressed the priming button and the fuel started coming from the return line to the tank instead of coming from the hpfp and it sure made a mess with diesel everywhere. So my guess is the tank fuel pump is working backwards atleast when I prime it by vcds I don't know if that's even possible but that's what happened hence why there was always an airlock. Weird that I see many videos with just cycling the ignition and it turns right away and for me it's always a pita. Mine is a 1.6 tdi with the complete fuel canister instead of just the filter and 2 fuel lines instead of 4.

[@ALXG]

Awesome tutorial! And it looks like much fun too. You even made me want to replace the diesel fuel filter on my Tesla.

[@HumbleMechanic]

LOL Thanks! Post that video and tags me please. LOL

[@arnoldcp11]

If you would be so kind, please add a video changing the blinker fluid. The Tesla service manager told me it needs to be done but I can't get an appointment at the dealer until March.

[@HugeVictor]

Really hoping you'll do a timing belt. While this isn't the CRUA it will give some idea of how it goes!

[@turdferguson1945]

This is the way you ACTUALLY want to do this job. The other videos where they spill diesel all over the place are horrifying.

[@cnsmotorsports]

2014 jetta tdi. been told key cycles dont prime the system or remove air. you said its ok if you dont remove the fuel, to cycle the key a few times?

[@scotth.1179]

Hi Charles I have a question? Do you think it would be a good idea to replace the high pressure fuel pump, when you replace the timing belt?

[@HumbleMechanic]

In general no, if you don’t have a failure

[@Michael-kd4oi]

lol 5 nm, when I did mine i swear it was at like 20 ft/lb. The previous tech clearly didn't know what he was doing. After 4 broken T30 wd30, a heat gun, a punch I was able to get all of them out. I of course replaced all the fasteners.

[@joet1717]

I've been debating doing this myself for a but. Usually have my mechanic do it. Charles, have you looked into the nicktuned CAT style spin on filter conversion?

[@HumbleMechanic]

haven't looked at that style! With zero education on it(HAHA) it seems like its solving an issue thats not an issue. Now that filer may be a finer filter, and that would be cool. but just for ease, I dont know if its worth it

[@waifuracer6516]

Note: On PD 1.9 and 2.0tdis the process the same HOWEVER on PDs the turn of the key to prime the fuel is enough if you didnt drain the fuel out of the housing which on PDs you shouldnt otherwise you gonna sit there cranking for days. Cycling the key once before start does the trick at least in my experience.

[@redthreadzen]

Hi there, we have many of the TDI's in Australia so good to cover them, thanks. I have a 2013 5N 103TDI pacific Tiguan with the 1968cc CFFB engine. I assume it's the same procedure. Indeed it's much the same for most VW TDI engines. Mine throws a haldex pump code occasionally, so pump will need replacing at some stage. I know you've covered the haldex service. Could you cover a pump replacement please. Also, have you had a play around with OBDeleven what do you think? Have you done a review.

[@guilhermeg345]

Hey Charles, I have a question, is it ok to plug in the obd dongle while the engine is running ? For example, I've been doing this for awhile when I see my car doing a dpf regen I plug the obd dongle and track the progress so I know more or less when it ends and to see the temperatures, etc, but I thought to myself this days if that's really ok to do it. Could it short something in the obd plug for example ?

[@aaronyork6173]

I have a 2014 jetta TDI with 85.000 miles on it when should I have the timing belt changed? Thank you so much for any info.

[@anthonymillar6183]

Good video 👍 Can you make videos of cleaning in tank fuel pump

[@HouseCallAutoRepair]

Excellent video! Professional, detailed, logical, and easy to follow!

[@Fillup82]

If you’re doing more tdi stuff please cover the mk4 platform 🙏🏻

[@crabbyjimmy1]

I just bought a 2014 Jetta sports wagon TDI. Can I key prime the fuel filter?

[@louiscapasso4452]

If you don't have a scan tool to prime the system. You can put the filter in the canister then fill it with fresh fuel. Then put to top on and tighten it up.

[@HumbleMechanic]

yep., just put that filter in slow! LOL

[@yachtwish]

For anyone out there nervous to change their fuel filter because you don’t have a computer….I just did mine. Started right up.

[@reewoods8441]

And how did you prime it

[@calebgooch44]

I did the same and barely spilled a drop. Didn’t refill the filter housing with and diesel and my car started right up and is running fine just took her for a test drive! Best luck to you!

[@johngassmann9581]

I miss my 2010 Jetta TDI. I regret trading it for a hybrid Jetta.

[@n9wox]

I topped up my filter canister with Power Service fuel supplement.

[@tcap7917]

I miss my 2009 tdi. 130k with no issues. Couldn't resist the buyback offer ($5k over book).

[@HumbleMechanic]

100% I would have taken that $ too!!

[@eddominiczak669]

I’m a 19 yr old VW apprentice in England and you have just created extra work for yourself. I’m a fan of the channel but i can see so many things wrong with this

[@HumbleMechanic]

Like?

[@TraceyAllen]

On common rail tdi most hpfp issues will be covered under the emissions warranty. I recently got a new glow plug and intercooler and hoses under warranty on my 2012 golf sportwagen.

[@chriswillis6916]

You drained and wiped out the filter housing. Later you got “fresh fuel” out of the housing to lubricate the seals. Where did the fresh fuel come from? Did you run the pump using VCDS to partially fill the housing before you put the new filter in?

[@HumbleMechanic]

I did. We had to film the pump activation but

[@tommorides8086]

Those wheels look awesome. 🤙

[@pebjr6621]

Hey Charles, any new TDI videos coming?

[@HumbleMechanic]

Not likely. We are even considering parting ways with the Touareg

[@Skrillfreak]

Yes more TDi content

[@jimmywest1]

Any specific filter brand you recommend? :-)

[@JaredSVX]

I always wanted a TDI but I never pulled the trigger on one because I live in northern Illinois and I'm worried about it in the cold

[@HumbleMechanic]

They would do just fine :)

[@vickturorteez]

I had like 1/3 of fuel left in canister and didn't realize I had to top off I cycled the car 4-5 times And it started right, is it safe to say if there was a problem with priming I would know right away ?

[@nathanielfuentes5294]

Helped a TON. Thank you

[@QamilB79]

Love the video Charles the Best 💪

[@jancarloscruz1047]

Greetings, I would like to know if the 2006 jetta 1.9l tdi automatic is a good buy?

[@miketeeveedub5779]

Wow - filter change every 20K? Dang - didn't know diesel was that dirty. Wonder how many TDI's have gone WAY past that schedule interval due to owner negligence. Thanks for the info Charles!

[@TraceyAllen]

My 2012 tdi sportwagen manual says every 40k miles.

[@Ramboy2007]

The reason for 20K is they where to cheap to put a water sensor in the bottom of the filter housing. Also doesn't have a bottom drain. Really poor designed fuel system when compared to industrial.

[@miketeeveedub5779]

@@Ramboy2007 - so it's less about dirty fuel, more about water separation drain off. Agreed - that design could've been better...

[@briansmith9258]

@@Ramboy2007 so filter can be saturated with water?

[@Ramboy2007]

@@briansmith9258 On my 2014 TDI, Yes. There is no "water in fuel sensor" on it. Where as all the trucks and equipment I have, use sensors or sight glass and filter drains.

[@ljguy300]

Would a clogged fuel filter cause a p0087 low fuel pressure code?

[@boejiden120]

Could be a hpfp