1.9 TDI PD Tandem pump rebuild / repair (fuel & vacuum pump) VW Touran

Step by step guide on how to rebuild / reseal the Tandem pump on this 2005 1.9 TDI PD Volkswagen Touran. This job can need doing for various reasons. Non start, running issues, vacuum issues , fuel in the oil / oil in the fuel etc.
New Tandem pump rebuild kit - diydaly.co.uk/...
Tools used :
Leatherman wingman multitool - amzn.to/41dtKwm
Torx Screwdriver set - diydaly.co.uk/...
Torx Screwdriver set - ebay.us/4lrqhG
Torx socket set - diydaly.co.uk/...
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Allen Socket set - ebay.us/AnN9sq
Milwaukee screwdriver set - ebay.us/SObccr
Milwaukee screwdriver set - ebay.us/W79UkN
Milwaukee 3/8” Impact driver - ebay.us/ZtxrBu
Small Hammer - ebay.us/ylHsaS
3/8 socket set - amzn.to/3eGx2Ak
Brake Cleaner - ebay.us/lR0dDo
Brake cleaner sprayer - ebay.us/YcUXwq
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[@diydaly]

New repair kit - diydaly.co.uk/products/1-4tdi-1-9tdi-2-0tdi-2-0sdi-vacuum-fuel-tandem-pump-repair-kit

[@williammatthews9131]

Great video😊one little extra tip...when putting in the bottom back (awkward) torx bolt, put a little bit of paper on end of your torx bit to "wedge" the bolt onto your bit, too easy to drop the bolt into the mess under pump otherwise.i have done quite a few of these😊

[@richardockenden8669]

Great video really precise , I wasn`t going to bother doing it after fitting a brand new head on my van but I think its worth doing to eliminate any doubt of how long it will last. Thank you.

[@ariantaria2065]

Well explained, is very easy to understand your repair videos ,fairly easy repair job ,thanks for your content,

[@diydaly]

Thanks 👍👍

[@benedekpal3911]

Hello! what order does the fuel pipe holder go back to the valve cover? valve cover screw-fuel holder-nut? thanks

[@DomX2008]

As others have said, this is a great instructional video for tearing down and building back up the tandem pump - thank you

[@Cs39601]

Very nice video , on a side note it sounded like Tom aspinall just taught me how to rebuild my tandem pump lol

[@jonathanleblanc4517]

Going to do this tomorrow. Fantastic descriptions and instructions. Really appreciate you posting this.

[@diydaly]

Glad it was helpful!

[@christiann7320]

Mine is leaking real bad. Gonna tackle it tomorrow or the day after. Nice tutorial

[@fTLuckyz]

Thank you for the help with this video. It helped me a lot! Everything super clean :D

[@realjiver2]

Excellent video.

[@diydaly]

Thank you very much!

[@timothywschmidt3227]

Well done. Helped me a bunch, and saved me a ton of money I would have spent on a new one. Thank you, and keep up the good work. Is there a known torque spec for a nip, or just a bit? LOL. Just kidding, thank you.

[@diydaly]

Thanks 👍 haha I’m afraid I’m not sure of the exact torque

[@jasonboi7466]

Thanks for this! mech told me my vac pump is leaking oil. It’s been hard to start for a while too, I was thinking it might be fuel pump non return valve failing but looks like it’ll be the vac pump. Got a stiff pedal too so all my seals must be shot! I’ve got low pressure to my turbo too, mech said it’s 300 when it should be 500 (Don’t know what unit he said). Wastegate is well noisy, it’s over boosting and has some hesitation, would you think this could all be down to the vac pump too? It’s just had a new n75

[@Archiebold247]

Top job. 😊

[@diydaly]

Thank you! 😃

[@Naz9mm]

if its only a a tiny leak of oil and fuel. do you still recommend opening the internals to do all the little bits? or would the outer main gaskets be enough.. no other fuelling issues with pressure etc

[@Naz9mm]

any suggestions?

[@forgottenknowledge8917]

None

[@zbyszek8676]

In my Skoda Octavia 1.9 TDI '2009 BXE there is a movable vacuum connector. I want to replace this LUK BMF pump with a new one. Do I need to bleed the fuel and brake system after replacing the pump? How do I do that? Advise please. Thanks for the great tutorial...

[@faroukkhan6777]

Great video,, thanks 👍

[@diydaly]

Thanks 👍

[@danielking5749]

The gasket kit is only for a LUK tandem pump? Stripped a Bosch one and the outer casing gasket is different

[@tmautos-surrey-sussex]

Could I ask , changed my fuel filter on a 2007 2.0 Tdi nice engine - but the fuel look really dirty , how do you know if oil is going into fuel , just by checking the oil level regularly ? Had a Touran 1.9tdi before and the brake pedal did seem sharper ? Do you think it’s possibly the pump needs a replacement of gaskets like you’ve shown

[@dunebasher1971]

Do you need to relieve fuel pressure before removing the fuel hoses?

[@Cheeckymonkey114]

Excellent video! Thanks for sharing 👍 One question - do an of the gaskets / seals need any type of sealant applied, or should they be applied dry? Also, does the vacuum pump or fuel pump require any lubrication prior to refitting? Thanks

[@diydaly]

Always fit the gaskets dry , o rings can be lightly lubricated with the same oil used for refilling

[@thermal6885]

So much easier than with the Audi, where the engine stands lengthwise with the pump 6 cm from the torpedo wall..!

[@milos_visic]

Hello. Passat b5.5 96kw 131hp. I suspect the tandem pump, it wants to run when it has been standing for a long time, and sometimes it wants to when it is heated. When standing for a long time, the brake wants to be harder, so it has to be pressed a little until it comes into its own. And for some reason it spends 1.2 1.3 in the back. Do you know what the problem is?

[@34979Charlie]

Thanks for the upload, my 1.9 tdi oil sump is filling rather rapidly with diesel, besides the injectors do you know if a bad seal/gasket on the tandem pump can let it in that way ?

[@diydaly]

Yes it can cause the same issue mage

[@josipbrkic4164]

Pozzzz, dali je pumpa curila ili je bio neki drugi problem? Koji je razlog reparacije.

[@mariusmoldovan8558]

Why is the vacuum part full of oil? Îs that normal?

[@mariusmoldovan8558]

Is normal for the vacuum side of the pump to be full of oil? Or the oil is leaking from the engine ?

[@realjiver2]

I've noted that, the repair kit for the1.9 PD 8 hole tandem pumps don't include those small springs. Is that because they are not necessary?

[@diydaly]

Yeah I see that but I’m not sure as not had one apart tbh

[@realjiver2]

@@diydaly Thanks for the reply. It's ok I found a video specifically on those 8 hole tandem pumps.

[@DanielWilliams-k3h]

Mine says STOP after I try and start the engine?

[@arttu_laakso]

My vacuum pipes fitting on the pump itself is a little bit loose? Is that normal🤔

[@arttu_laakso]

Its quite wet on that area aswell… thought that the pipe clamp was only loose

[@pakozdizsolt]

There are no factory instructions or gaskets available for repairing this part. The factory instructions require replacement in case of failure. The problem is, you can't check to see if you've got a tight seal between the engine oil and the fuel compartment. If there is even a small leak, fuel goes into the engine oil, dilutes it, you don't notice it and trouble ensues. (Crankshaft, hydraulic cylinder, bearing) Don't get me wrong, I'm not writing this from bad motives, my own experience.

[@Social_Chunk]

Do you need to prime the fuel pump side after reinstalling it?

[@diydaly]

Neh might take a few cranks though

[@agentcarbunkle]

Did you need to prime this when put back on, I have an issue where my car wont start after swapping pumps

[@diydaly]

Might take a few cranks after replacement but shouldn’t be too bad

[@MawethuMaboza-b8k]

Hi why is my one not building up pressure on the brake padel but I I did put a new pump?

[@diydaly]

Are you sure the vacuum lines not split? Really common issue

[@defwish8570]

Thanks

[@diydaly]

👍

[@garyparker5012]

So which part or seal actually fails in those tandem pumps

[@diydaly]

Various seals failed , most common is the centre / shaft seal

[@garyparker5012]

@@diydaly thank you great video

[@deen-al-afriqi]

In my experience the orange seal in the (as seen in the video) with the little circular section fails 9 times out of 10. I've also seen issues where the actual gear mechanism gets worn out in which case the pump can't really be fixed without donor parts

[@diesel09]

How do you feel about the Bosch “upgrade” over the old LUK pump?

[@diydaly]

I’m a big fan of Bosch 👍

[@diesel09]

@@diydaly is there any subtle gains besides reliability? I would love to get a pump but they are kind of pricey over here in the States

[@diydaly]

@@diesel09 not really to be honest the other style pumps are still decent

[@NN-xu6jw]

Nice video. Why not buy a new one ( aftermarket ) ? Al the work that you put in it.

[@4ndy65]

I bought a brand new bosch pump for just over £100 Only takes an hour to change

[@edvingutic4285]

I change the pump but i cant start the car

[@Tomm790]

Same here

[@agentcarbunkle]

@@Tomm790 i have same problem, might need priming/ getting air out. I'm trying this tomorrow