Dead Blower Motor Plagues Audi S4 Climate Control System

Had a similar issue on my 2008 Audi A4 2.0T. The HVAC system completely stopped working, with no air flow from any vents regardless of settings. After inspection, the root cause was a failed blower motor resistor along with a burnt-out blower motor. The blower motor failure was caused by worn bearings that eventually seized, which is a common wear point in these models. The repair required removing the entire heater fan assembly from under the dashboard. The job also revealed damaged wiring harness connectors that needed replacement to prevent future electrical issues. This is considered a serious repair since the blower motor controls all air conditioning and heating air flow in the cabin. Without it, the HVAC system cannot function at all. The repair typically requires 3-4 hours of labor since accessing the blower motor means removing several dashboard components. On Audi models from this generation, its recommended to also inspect the blower motor resistor and wiring when replacing the motor, as they often fail together. This prevents having to disassemble everything again if another component fails shortly after.

Had a similar issue on my 2008 Audi A4 2.0T. The HVAC system completely stopped working, with no air flow from any vents regardless of settings. After inspection, the root cause was a failed blower motor resistor along with a burnt-out blower motor. The blower motor failure was caused by worn bearings that eventually seized, which is a common wear point in these models. The repair required removing the entire heater fan assembly from under the dashboard. The job also revealed damaged wiring harness connectors that needed replacement to prevent future electrical issues. This is considered a serious repair since the blower motor controls all air conditioning and heating air flow in the cabin. Without it, the HVAC system cannot function at all. The repair typically requires 3-4 hours of labor since accessing the blower motor means removing several dashboard components. On Audi models from this generation, its recommended to also inspect the blower motor resistor and wiring when replacing the motor, as they often fail together. This prevents having to disassemble everything again if another component fails shortly after.

Wow, thanks for the detailed explanation. Your HVAC issue sounds exactly like what Im experiencing with my S4s climate control system. Good point about checking the resistor and electrical wiring at the same time. Would you remember roughly what the total repair cost was for fixing the blower motor and related components? Also curious if youve had any other air conditioning or ventilation problems since getting it fixed?

Wow, thanks for the detailed explanation. Your HVAC issue sounds exactly like what Im experiencing with my S4s climate control system. Good point about checking the resistor and electrical wiring at the same time. Would you remember roughly what the total repair cost was for fixing the blower motor and related components? Also curious if youve had any other air conditioning or ventilation problems since getting it fixed?

Had the repair done last month actually. The fan speed controller and blower motor were completely replaced, along with some worn electrical wiring. Total cost was 365 Euro which included labor and parts. The cabin fan now works perfectly, no more climate control issues since the fix. The mechanic confirmed what I suspected: the original blower motor had failed due to age and use. They also found and repaired some corroded wiring connections while the dashboard was apart, which was smart since it prevented future air circulation problems. The repair shop did a thorough job testing all the different fan speeds and air flow settings before returning the car. Really glad I had them check everything while they were in there, as the whole HVAC system has been working flawlessly since. Would definitely recommend getting it fixed soon since driving without proper cabin ventilation can be really uncomfortable, especially during weather extremes. Plus leaving it too long risks damaging other components in the climate control system.

Had the repair done last month actually. The fan speed controller and blower motor were completely replaced, along with some worn electrical wiring. Total cost was 365 Euro which included labor and parts. The cabin fan now works perfectly, no more climate control issues since the fix. The mechanic confirmed what I suspected: the original blower motor had failed due to age and use. They also found and repaired some corroded wiring connections while the dashboard was apart, which was smart since it prevented future air circulation problems. The repair shop did a thorough job testing all the different fan speeds and air flow settings before returning the car. Really glad I had them check everything while they were in there, as the whole HVAC system has been working flawlessly since. Would definitely recommend getting it fixed soon since driving without proper cabin ventilation can be really uncomfortable, especially during weather extremes. Plus leaving it too long risks damaging other components in the climate control system.

Thanks for the advice. Finally got my S4 fixed last week. Took it to a different mechanic who specializes in German cars. Just like mentioned here, they found both the blower motor and resistor were shot. The job took about 4 hours and cost 420 Euro total, a bit more than expected but they also replaced some cracked vacuum lines they discovered while working on it. The air conditioning and heating are working perfectly now. All fan speeds are smooth and the air flow is strong again. The mechanic showed me the old parts, the motor bearings were completely worn out and there was obvious damage to the wiring connectors. Glad I switched repair shops. The new place did a much more thorough job explaining the issues and fixing everything properly the first time. Really appreciate the heads up about checking related components. Having everything inspected and fixed together definitely saved me from potential future headaches with the climate control system.

Thanks for the advice. Finally got my S4 fixed last week. Took it to a different mechanic who specializes in German cars. Just like mentioned here, they found both the blower motor and resistor were shot. The job took about 4 hours and cost 420 Euro total, a bit more than expected but they also replaced some cracked vacuum lines they discovered while working on it. The air conditioning and heating are working perfectly now. All fan speeds are smooth and the air flow is strong again. The mechanic showed me the old parts, the motor bearings were completely worn out and there was obvious damage to the wiring connectors. Glad I switched repair shops. The new place did a much more thorough job explaining the issues and fixing everything properly the first time. Really appreciate the heads up about checking related components. Having everything inspected and fixed together definitely saved me from potential future headaches with the climate control system.