Hi, I am new to the site.

I have just fitted a new complete turbo and actuator.

When i pull away hard and the turbo kicks in the EPC light comes on and the car goes into limp mode.

Switch the car off EPC light goes out. Is there a something i need to reset.

Thanks maggieh

Hi, I believe without a VCDS scan is quite difficult to know, just guessing it could be an overboost problem? Accordig that it happens only when you're pushing hard, does the actuator have the same OEM code as the previous one fitted?

Do you feel anything strange when the epc light turns on? Any vibration, noise or something like that?

Edited 28 July, 202528 Jul by Jack25

She runs lovely nothing weird when the epc light comes on. No noises or vibration.

I will mention to my mechanic overboost is it something you can adjust ?

I have a local VAG garage close. I will book her in.

Maggie

Without seeing the car, I can suggest an over boost based on what said previously could be a stuck actuator (a well-known fault on 1.2 tsi based on the year; I guess a cbza or cbzb complete same engine, just a different tune). Be careful to not push it hard as a repeated overboost can cause damage. I'm also thinking (probably the most realistic scenario) of a non-calibrated turbo actuator because they're electronic and need to be calibrated, especially when you replace the turbo compressor.

I hope it can help; also once you get the car back from the garage, can you report what they have done? (personal curiosity) Thank you.

@maggieh just out of curiosity, what was the reason for fitting the new turbo, where did it come from and did you retain the old one?

Hi Jack

All what you have said makes sense. We are hopefully getting the car sorted at the weekend.

I will keep you posted.

Hi Breezy Pete

The actuator had actually gone. It was stuck and the circlip was off the rod.

How the car kept going was a miracle. I thought perhaps buying the complete unit as it came with all

the gaskets was sensible. I bought it from AutoDoc used them in the past good price.

I still have the old turbo as it was new.

Thanks Maggie

14 hours ago, maggieh said:

Hi Jack

All what you have said makes sense. We are hopefully getting the car sorted at the weekend.

I will keep you posted.

Hi Breezy Pete

The actuator had actually gone. It was stuck and the circlip was off the rod.

How the car kept going was a miracle. I thought perhaps buying the complete unit as it came with all

the gaskets was sensible. I bought it from AutoDoc used them in the past good price.

I still have the old turbo as it was new.

Thanks Maggie

Ok thank you, I'm happy to (I hope) help.

Hi Jack,

I've just had the turbo recalibrated by a company that has the VAG software.

Yeti is running like a dream.

Maggie

On 10/08/2025 at 14:58, maggieh said:

Hi Jack,

I've just had the turbo recalibrated by a company that has the VAG software.

Yeti is running like a dream.

Maggie

Hi Maggieh,

I’m really happy that everything worked out fine.