Holstein
Holstein Parts

Holstein 2BMR0542 HVAC Blower Motor Control Module

Brand Holstein 2BMR0542
Product line Holstein Parts
Fits Audi and Porsche · 70 vehicles

OE direct replacement. Matches the original blower motor control module form for straightforward installation.

Blower speed control. Regulates HVAC fan output for consistent cabin airflow.

Holstein Parts. A trusted aftermarket line for replacement HVAC components.

Cross-references 4P1838, 8T0 820 521 and 8T0 820 521 A for the same application. See all 11.

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HVAC Blower Motor Control Module for Audi and Porsche

Holstein Parts 2BMR0542 is an HVAC blower motor control module for select Audi and Porsche applications. It is used in vehicles such as the Audi A4, A5, Q5, S4, SQ5, and Porsche Macan to regulate blower motor speed and restore proper cabin airflow control.

Key Features

  • Holstein Parts HVAC blower motor control module
  • Direct-fit replacement for select Audi and Porsche models
  • Supports blower motor speed regulation for cabin climate control
  • Fits applications across 2012-2021 model years
  • Part number 2BMR0542 for ordering and cross-reference

Detailed Description

Holstein 2BMR0542 is a blower motor control module used in the HVAC system to manage fan output based on the vehicle’s climate control commands. This part is listed for 2012-2021 Audi and Porsche applications, including Audi A4, A4 allroad, A4 Quattro, A5, A5 Quattro, A4 Quattro, allroad, Q5, S4, S5, RS5, SQ5, and Porsche Macan. It cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

  • Blower fan stuck on one speed
  • No cabin airflow from the HVAC vents
  • Intermittent heater or A/C fan operation
  • Unresponsive climate control fan settings
  • Weak or inconsistent interior air circulation

Installation Notes and Tips

  • Confirm the connector style before ordering; some listed Porsche Macan and Audi applications note without connector.
  • Verify the OE part number match, including 2BMR0542, before installation.
  • Inspect the blower motor and related wiring for damage before replacing the module.
  • Use the vehicle’s exact year, make, and model to confirm fitment.

Quality Assurance

Holstein Parts is the product line for this HVAC control module, and the listed OE interchange references help support application matching for select Audi and Porsche vehicles.

This part fits 70 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2021PorscheMacan3.0LV6without Connector; Holstein Parts
2020PorscheMacan3.0LV6without Connector; Holstein Parts
2019PorscheMacan3.0LV6without Connector; Holstein Parts
2018PorscheMacan3.0LV6Discontinued; Holstein Parts
2018PorscheMacan3.6LV6Discontinued; Holstein Parts
2018PorscheMacan3.0LV6Current OE; Holstein Parts
2018PorscheMacan2.0LL4Discontinued; Holstein Parts
2018PorscheMacan2.0LL4Current OE; Holstein Parts
2018PorscheMacan3.6LV6Current OE; Holstein Parts
2017AudiA5 Quattro2.0LL4Holstein Parts
2017AudiQ53.0LV6Holstein Parts
2017AudiQ52.0LL4Holstein Parts
2017AudiS53.0LV6Holstein Parts
2017AudiSQ53.0LV6Holstein Parts
2017PorscheMacan3.0LV6Discontinued; Holstein Parts
2017PorscheMacan3.6LV6Discontinued; Holstein Parts
2017PorscheMacan3.0LV6Current OE; Holstein Parts
2017PorscheMacan2.0LL4Discontinued; Holstein Parts
2017PorscheMacan2.0LL4Current OE; Holstein Parts
2017PorscheMacan3.6LV6Current OE; Holstein Parts
2016AudiA42.0LL4without Connector; Holstein Parts
2016AudiA4 allroad2.0LL4Holstein Parts
2016AudiA4 Quattro2.0LL4without Connector; Holstein Parts
2016AudiA5 Quattro2.0LL4Holstein Parts
2016Audiallroad2.0LL4Holstein Parts
2016AudiQ53.0LV6Holstein Parts
2016AudiQ52.0LL4Holstein Parts
2016AudiS43.0LV6without Connector; Holstein Parts
2016AudiS53.0LV6Holstein Parts
2016AudiSQ53.0LV6Holstein Parts
2016PorscheMacan3.0LV6Holstein Parts
2016PorscheMacan3.6LV6Holstein Parts
2015AudiA42.0LL4Holstein Parts
2015AudiA4 allroad2.0LL4Holstein Parts
2015AudiA4 Quattro2.0LL4Holstein Parts
2015AudiA5 Quattro2.0LL4Holstein Parts
2015Audiallroad2.0LL4Holstein Parts
2015AudiQ53.0LV6Holstein Parts
2015AudiQ52.0LL4Holstein Parts
2015AudiRS54.2LV8Holstein Parts
2015AudiS43.0LV6Holstein Parts
2015AudiS53.0LV6Holstein Parts
2015AudiSQ53.0LV6Holstein Parts
2015PorscheMacan3.0LV6Holstein Parts
2015PorscheMacan3.6LV6Holstein Parts
2014AudiA42.0LL4Holstein Parts
2014AudiA4 allroad2.0LL4Holstein Parts
2014AudiA4 Quattro2.0LL4Holstein Parts
2014AudiA52.0LL4Holstein Parts
2014AudiA5 Quattro2.0LL4Holstein Parts
2014Audiallroad2.0LL4Holstein Parts
2014AudiQ53.0LV6Holstein Parts
2014AudiQ52.0LL4Holstein Parts
2014AudiRS54.2LV8Holstein Parts
2014AudiS43.0LV6Holstein Parts
2014AudiS53.0LV6Holstein Parts
2014AudiSQ53.0LV6Holstein Parts
2013AudiA42.0LL4Holstein Parts
2013AudiA4 allroad2.0LL4Holstein Parts
2013AudiA4 Quattro2.0LL4Holstein Parts
2013AudiA52.0LL4Holstein Parts
2013AudiA5 Quattro2.0LL4Holstein Parts
2013Audiallroad2.0LL4Holstein Parts
2013AudiQ53.0LV6Holstein Parts
2013AudiQ52.0LL4Holstein Parts
2013AudiRS54.2LV8Holstein Parts
2013AudiS43.0LV6Holstein Parts
2013AudiS53.0LV6Holstein Parts
2012AudiA52.0LL4Holstein Parts
2012AudiA5 Quattro2.0LL4Holstein Parts
Directly replaces or cross-references 11 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
4P18388T0 820 5218T0 820 521 A8T0 820 521 E8T0-820-5218T0-820-521-A8T0-820-521-E8T08205218T0820521A8T0820521ERU1577