Audi A3 turbo issues

Teenager2413

Torque Junkie
Points
172
From
Dunmow
Car
Audi A3 Quattro 2.0
hello everyone long time no speak

I now have a beautiful little A3 2.0tdi 140bhp S-line Quattro i love it

However the turbo , in the only way to blew up !!! I removed the old one and as I hadn't had the car long it is covered under warranty , so know after many our of blood sweat and tears I replaced the turbo , now I have a new issue the car is only producing power above about 2k rpm the turbo as far as I'm told is it is a new Garrett turbo it just weird also when you hit 3k the turbo screechs then the car jolts and the turbo pull properly

Please I need help

Charlie
 

TCJBOLDIE

Torque King
Points
667
From
Brisbane
Car
JB Starion
Are you absolutely sure that the new turbo is the same spec as the factory one?

Do you realize that some diesel turbos are the sliding vane type?
 

TCJBOLDIE

Torque King
Points
667
From
Brisbane
Car
JB Starion
Have you checked all the connections and pipes/hoses for leaks or splits that will bleed off boost pressure and harm performance ??
 

Teenager2413

Torque Junkie
Points
172
From
Dunmow
Car
Audi A3 Quattro 2.0
Yes all vacuum pipes have been replaced with silicone and boost pipes where replaced under warranty
 

obi_waynne

Administrator
Staff member
Moderator
Points
887
From
Deal, Kent UK
Car
A3 1.4 TFSI 150 COD
You need to adjust the VNT rod length/VNT 15 actuator whenever installing a new turbo.

It sounds like this adjustment is all that is needed judging by your comments and observations.
 

obi_waynne

Administrator
Staff member
Moderator
Points
887
From
Deal, Kent UK
Car
A3 1.4 TFSI 150 COD
The easy way on car is to take readings from the turbo boost levels etc... via vagcom and calibrate the turbo, see this video for a few tips on the off car method..

 

Teenager2413

Torque Junkie
Points
172
From
Dunmow
Car
Audi A3 Quattro 2.0
just a update new post now about hybrid turbo, the old turbo i got sorted pull like a dream to fun speeds but now it knackered so im going for a hybrid now XD P.S my mate vxr got nervous !!!
 

Rudders666

Torque Master
Points
162
From
West Yorkshire
Car
Ford Focus ST300+
You really shouldn't be blowing through turbos like that. Also if they replaced the first one surely they'd have had to replace the second also?
 
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