Restore precise turbo boost control in your Audi or VW 3.0 TDI with this OEM‑grade Turbo Electronic Actuator (Part No. 53049880054), also cross‑referenced as 059145702M, 059145702R, 059145715F, A2C53308523, and related variants. This 4‑pin electric actuator replaces the factory unit on BV50 / K04 turbos used in models such as Audi A4, A6, A8, Q7, and Volkswagen Touareg, enabling optimal vane / wastegate positioning. Built to original specifications, it offers responsive, reliable boost control—perfect for replacing a worn or failing actuator and restoring lost turbo performance.

OEM Number: 059145702M, 059145702R, 059145702S, 059145715F, 53049880054, A2C53308523, A2C53106046, 059145702F, 059145702H, 059145702L

Operating Mode : Electric

Charge Type : Electrically Controlled Actuator

Number Of Pins : 4-Pin Connector

Quantity : 1

Make	Model	Variant	Type	Engine	Chassis	Year
Audi	A4	Diesel Convertible	3.0 TDI quattro	2967cc 150KW 204HP BKN	AWD B7 8HE	2006-2009
Audi	A4	Diesel Convertible	3.0 TDI quattro	2967cc 171KW 233HP ASB	AWD B7 8HE	2006-2009
Audi	A4	Diesel Estate	3.0 TDI quattro	2967cc 150KW 204HP BKN	AWD B7 8ED	2004-2008
Audi	A4	Diesel Estate	3.0 TDI quattro	2967cc 171KW 233HP ASB	AWD B7 8ED	2006-2008
Audi	A4	Diesel Saloon	3.0 TDI quattro	2967cc 150KW 204HP BKN	AWD B7 8EC	2004-2008
Audi	A4	Diesel Saloon	3.0 TDI quattro	2967cc 171KW 233HP ASB	AWD B7 8EC	2006-2008
Audi	A6	Diesel Estate	3.0 TDI quattro	2967cc 155KW 211HP BNG;CDYB	AWD C6 4F5	2005-2011
Audi	A6	Diesel Estate	3.0 TDI quattro	2967cc 165KW 225HP BMK	AWD C6 4F5	2005-2006
Audi	A6	Diesel Estate	3.0 TDI quattro	2967cc 171KW 233HP ASB	AWD C6 4F5	2006-2008
Audi	A6	Diesel Saloon	3.0 TDI quattro	2967cc 155KW 211HP BNG;CDYB	AWD C6 4F2	2004-2011
Audi	A6	Diesel Saloon	3.0 TDI quattro	2967cc 165KW 225HP BMK	AWD C6 4F2	2004-2006
Audi	A6	Diesel Saloon	3.0 TDI quattro	2967cc 171KW 233HP ASB	AWD C6 4F2	2006-2008
Audi	A6 Allroad	Diesel Estate	3.0 TDI quattro	2967cc 155KW 211HP BNG;CDYB	AWD C6 4FH	2006-2011
Audi	A6 Allroad	Diesel Estate	3.0 TDI quattro	2967cc 171KW 233HP ASB	AWD C6 4FH	2006-2008
Audi	A8	Diesel Saloon	3.0 TDI quattro	2967cc 155KW 211HP BNG	AWD D3 4E2,4E8	2003-2010
Audi	A8	Diesel Saloon	3.0 TDI quattro	2967cc 171KW 233HP ASB	AWD D3 4E2,4E8	2003-2010
Audi	Q7	Diesel SUV	3.0 TDI quattro	2967cc 155KW 211HP BUN;CASB	AWD -- 4LB	2006-2010
Audi	Q7	Diesel SUV	3.0 TDI quattro	2967cc 171KW 233HP BUG	AWD -- 4LB	2006-2008
Audi	Q7	Diesel SUV	3.0 TDI quattro	2967cc 176KW 240HP CASA;CCMA;CJGA;CNRB	AWD -- 4LB	2007-2015
VW	Phaeton	Diesel Saloon	3.0 V6 TDI 4motion	2967cc 165KW 224HP BMK	AWD -- 3D1,3D2,3D3,3D4,3D6,3D7,3D8,3D9	2004-2007
VW	Touareg	Diesel SUV	3.0 TDI	2967cc 155KW 211HP BUN;CASB	AWD -- 7LA,7L6,7L7	2006-2010
VW	Touareg	Diesel SUV	3.0 V6 TDI	2967cc 165KW 225HP BKS;CATA	AWD -- 7LA,7L6,7L7	2004-2010
VW	Touareg	Diesel SUV	3.0 V6 TDI	2967cc 176KW 240HP CASA;CASC	AWD -- 7LA,7L6,7L7	2007-2010
VW	Touareg	Diesel SUV	3.0 V6 TDI	2967cc 176KW 240HP CASA;CNRB	AWD -- 7P5,7P6	2010-2018
Make	Model	Variant	Type	Engine	Chassis	Year

Our SKU: TVWA2C53308523_94
 
All our Turbo Electronic Actuator 53049880054 For Audi are OEM quality and reliable after market car parts. This Turbo Electronic Actuator 53049880054 For Audi is specifically compatible with Audi: A4, A6, A6 Allroad, A8, Q7, VW: Phaeton, Touareg, .

Please use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.

If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.

❓ Frequently Asked Questions (FAQs)

Q1: What does a turbo electronic actuator do?
The actuator (sometimes called a turbo vane actuator or electronic boost actuator) controls the position of the internal vanes or wastegate in a variable turbine geometry (VTG) turbo or a variable nozzle turbo (VN) setup. It receives commands from the engine control unit (ECU) to adjust airflow, optimizing boost pressure, improving throttle response, and helping protect the turbo from overboost conditions.

Q2: Which OEM numbers or equivalents match 53049880054?
Yes — common OEM and cross‑references for this actuator include 059145702M, 059145702R, 059145702S, 059145715F, A2C53308523, A2C53106046, and other related variants.

Q3: Which vehicles or engines is this actuator compatible with?
This actuator is typically used on Audi / Volkswagen 3.0 TDI engines fitted with BV50 / K04 turbos. Compatible models often include Audi A4, A6, A8, Q7, and VW Touareg etc., using the 3.0 TDI configurations.

Q4: Is this a direct plug‑and‑play replacement?
Yes, provided your existing actuator has the same connector type (4‑pin) and fits the same mounting points. No major modifications should be needed if the original unit matches this reference.

Q5: What are signs that the actuator is failing or malfunctioning?

• Reduced boost / loss of power

• Turbo overboost or underboost error codes

• Limp mode enabled

• Irregular boost behavior or engine surging

• Diagnostic trouble codes (DTCs) related to turbo control (e.g. vane control faults)

Q6: How can I confirm this part fits my vehicle before buying?

• Compare the part number printed on your old actuator (should match 53049880054 or one of the equivalents).

• Use your vehicle’s VIN / engine code to cross-check compatibility with the supplier.

• Confirm that your turbo is of the BV50 / K04 variant and expects a 4‑pin electronic actuator.

Q7: Do I need to calibrate or program the actuator after installation?
Often yes — many modern turbos require a calibration or “learn” procedure using diagnostic software to ensure the actuator and vane positions sync correctly with the ECU. Failing to do so may result in poor performance or error codes.

Q8: What warranty or return policy is offered?
The listing offers 60 days returns for new, unopened items. The warranty typically covers manufacturing defects, not damage from incorrect installation or misuse.