Volkswagen VW TDI ALH Diesel Turbo Cleaning Overboosting

Dis assembling the turbo on a 2001 VW jetta ALH TDI. This turbo was very sticky causing the car to overboost. This cleaning brought the turbo back to life! No more overboosting!
New turbos can be found here: rebrand.ly/xman

[@1wisestein]

Dang, exact same model same problem. Thanks!

[@marcusmotorama]

great video! Thx!

[@robertmiles6492]

I broke one of those 4mm torx screws getting it out but i managed to weld a nut on the piece of thread that was left , i soaked the whole thing in coca cola to clean it

[@lukealmaguer6312]

Do u have a recommendation for an after market turbo? I got a 2006 Jetta tdi brm 1.9

[@htd000]

Hey Austin, who was your machinist you used in Spokane? I know you mentioned it one time but not finding it. Thanks

[@geir8148]

Should I put some copper paste on the bolts?

[@cancerealtm623]

i alredy cleaned 3days ago, but still overboost, and block the vacuum for the boost level control, so my turbo boost gone. What do you think about this?

[@petar80]

Did you clean manifold?

[@TheMaverick982]

Why does turbo get so dirty?..its because of oil not changing enough times or because car was not driven in proper rpms? Only city drive and not high speed..thank you for the answear

[@maheshgo]

Thanks. Informative video 👍

[@austinniemela]

Glad it was helpful!

[@jeromecampbell7214]

What size tune did you do? I have a Malone 1.5 with 11mm pump and stock manual injectors.

[@austinniemela]

Jerome Campbell my tuner doesn’t really do the stage game. Just tuned for the mods like you should haha it runs pretty good though

[@raffaelle462]

can you put any anti sieze or gease onto the vanes so it doesnt stick together?or not?

[@claytonmoechnig6067]

Most likely the grease in those products will trap soot and gum it right back up and with the temp it could just burn off that grease leaving behind heavy carbon deposits

[@iplaybose]

is there a way to "fix it" by just taking it out on the highway and performing a good run on 3500-4000rpm ?

[@mario54vro]

someone told me to do that but i don t want to risk it

[@ottoszabo4040]

Hello! Does the engine need to be removed to remove the turbo? Mine is ALH Golf.

[@zzmechanicworks5550]

No

[@forgottenknowledge8917]

Ask the Italians about their tuneups

[@markofraser1528]

How often do you have to clean your turbo ?

[@austinniemela]

Marko fraser just when the car is babied and gets sticky, or it burns oil

[@greygtv6]

The biggest factor would be where, and how it is driven. Slow city driving with a lot of idling in traffic would create more soot. You are burning more diesel/km. Faster, motorway driving would burn less fuel and create less sooty deposit in the turbo. I bought my car and found it would go into limp mode very frequently. As my work commute is a 35 km round trip mainly on the motorway it has cleared up substantially. But I will strip it down when the weather warms and clean it up.

[@jeromecampbell7214]

Did you have to do anything special to run that turbo over stock?

[@austinniemela]

Jerome Campbell you shouldn’t need much! I have injectors, 11mm, tune, smic, piping and 3 bar map!

[@AlmondC]

Can you replace just the vanes?

[@zuberkie]

London turbos in the uk have new vane cartridges available

[@MrPolecar420]

PCV valve is the culprit ....change it from 60k to 80k ...when it fails oil dumps into the intercooler ..and slowly carbons up the EGR and Turbo ...use a good oil and CHANGE THAT DAMN PCV VALVE !

[@darkotv2]

I have same engine and after while i funde a some oil in intercooler, is that normal or my turbo need to clean... coz it run normal.(sry 4 eng)

[@austinniemela]

A small amount of oil in intercooler is normal!

[@darkotv2]

@@austinniemela its was like 1 deciliter (0.1 liter) after 15k-20k km

[@faustpanzer660]

Is one able to "clean" the turbo on an alh without removing it? I've seen people just open them up and spray oven cleaner in em.

[@codyparker679]

Massive amounts of seafoam and transmission fluid is how we used to do it on a 6.0 powerstroke.which effectively works thensame

[@KristoforJensen]

@@codyparker679 Transmission fluid?

[@cal3b803]

@@KristoforJensen ATF is great. Full of detergents. Let a rusty wrench sit in atf and you’d be amazed how it cleans up.