Turbo to Intercooler Hose Routing on VW T4 Transporter 2.5 TDi 2003 with EGR Pump

Question

Hello,
I have a problem with connecting the hoses coming from the turbo to the... I have a problem with connecting the hoses coming out of the turbo to... exactly where they should go in the version I have under the intercooler there is an EGR with an attached pump (please see photo). Please help and thank you in advance.

Anonymous · Answer

and what engine is 88hp 102hp 150hp in each model is different

Dalton33 · Answer

Hello,
I know there is a difference depending on the colour of the TDI lettering mine is all silver otherwise I don't know how to check the engine power unless someone can tell me how to check it.
Greetings

trans-serwis · Answer

The three-letter engine symbol on the pasteboard above the air filter.

Anonymous · Answer

ACV AJT Added after 1 [minute]: AHY

Dalton33 · Answer

Thank you for the quick answer,
Apart from the place above the air filter, where else can you find this three-letter symbol? I just had this part replaced from another transporter so I'm not sure if it's OK. Unless I'm looking wrong, is the paste or is it the black insulating material between the bumper and filter?

Anonymous · Answer

on the engine block behind the fuel injection pump or on the front pillar to the left of the fuse box (lining)

Dalton33 · Answer

Hello, I think I have finally found this three letter symbol it is HBH located behind the injection pump on the engine block. Greetings and please help

Dalton33 · Answer

Hello again,
I know it sounds strange but I'm already sure it's the ACV, can I ask for a complete diagram of how all the vacuum hoses should be connected, i.e. those from the plastic hose that goes from the servo to the vac pump, then at the top it looks to me like there are three outlets, there's also one coming out of the EGR and there's a small grey sensor from which there are also two hoses coming out.

Best regards and thanks in advance for your help.

Anonymous · Answer

and now yes on the top picture (post from 18 07 09)you can see a diagram of the turbocharger connection on the next picture (from today)you have the egr valve .Letters A I don't have to explain no. 12 is the vacuum from the hose between the vacum and the so called servo and no. 8 there goes a short hose and a small air filter is attached.And this little grey sensor one hose to the vacuum from the vacum(you can use a tee) and the other end to the flapper.The letters A I don't need to explain No. 12 are the vacuum from the hose between the vacum and the servo and No. 8 there is a short hose and a small air filter is attached.And the small grey sensor one hose to the vacuum from the vacum (you can use a tee) and the other end to the closing flap on the intake manifold (black box)

Dalton33 · Answer

Thank you very much for your answers.
But just to be 100% sure because I am really a beginner I am attaching the original pictures from my engine, can I ask for help like.
connect valve 1 to 5 etc.
In my version there is also a small valve sticking out from the wall behind the engine visible in the attached photos no.8
Greetings

fermik · Answer

At last this sounded correct and something can be answered. I attach a picture of the vacuum system for engines 2.5ltr. diesel eng.: ACV,AJT,AUF,AYY,AYC . (corrected) There is free access to similar images at after free registration on the parallel forum.

Dalton33 · Answer

Well, yes, but again I emphasise I am a complete beginner and from this diagram it seems to be for all versions, which for AVC I have no idea again please how is it possible to describe the connection according to the attached pictures above e.g..
1 connect to 8 etc.
Best regards

trans-serwis · Answer

It couldn't be clearer. If that's not enough then give the car to a mechanic.

Dalton33 · Answer

Can I ask someone knowledgeable to take a look at the pictures I have uploaded above and tell me which valve should be connected to which. Thank you in advance

Anonymous · Answer

Go to a mechanic, he will take a few minutes and connect the

trans-serwis · Answer

He will definitely not go.

Jacek79 · Answer

and the carburator is good?

Dalton33 · Answer

I can see that most of the guys on here have gained their level from writing stupid and hopeless stories, if I could I would drive to a mechanic but I can't so the next time you think about why someone comes on the forum for help because no one is expecting an answer like go to a mechanic because I made that up myself genius. So if there is someone on here who has a clue it will take them 3 mins to post 1 to 3, 5 to 8 etc. if you are going to stupidly reply then spare me that. The post is aimed at people who have a clue.
Greetings

Anonymous · Answer

still missing a photo of the turbocharger control valve

Dalton33 · Answer

I don't have a picture of the turbocharger because there was a diagram above and I already have it well connected

Anonymous · Answer

8to1 6and3to2 7to9 4to10 or swap 6 with 7 for the valve that closes the flap when extinguishing.

Turbo to Intercooler Hose Routing on VW T4 Transporter 2.5 TDi 2003 with EGR Pump

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