Four Seasons HVAC Blower Motor Resistor P/N:20461
Control how hard your front heater and A/C fan blows with the Four Seasons HVAC Blower Motor Resistor / Control Module 20648, a Four Seasons switch that sets the front blower motor's speed for each fan setting. It fits many Mercedes-Benz models, among them the 2002-2012 Mercedes-Benz G500, 2009-2012 Mercedes-Benz G550 and 2003-2012 Mercedes-Benz SL500. See the Buyer's Guide tab for the full list and engine details.
Four Seasons lists this part under two names, HVAC blower motor resistor and HVAC blower motor control module. Both names describe the same front blower speed-control unit. Four Seasons engineers and tests the part and brings more than 50 years of mobile A/C experience to its design.
This part may need replacing if the blower runs on only certain speeds, stays stuck on one speed, or does not run at all. If a failed resistor or control module is causing the problem, part 20648 replaces it. Check the blower motor, fan switch and wiring as part of the diagnosis.
Interchange: 4P1629 · 973242 · 973586 · 1712861 · 1638200597 · 2038214058 · 2038218651 · 203821865164 · 2208210951 · 2308210251 · 230821025164 · 2308216351 · 2308216451 · A06998 · MT18094 · SW11464 · SW11464C · JA1751 · JA1893
This part cross-references / interchanges with the following part numbers:
What does the Four Seasons 20648 do?
It regulates the speed of the front HVAC blower motor. That sets how much air the heater and A/C fan moves into the cabin at each fan setting.
Which vehicles does the Four Seasons 20648 fit?
It fits many Mercedes-Benz models, among them the 2002-2012 Mercedes-Benz G500, 2009-2012 Mercedes-Benz G550 and 2003-2012 Mercedes-Benz SL500. See the Buyer's Guide tab for the full list.
What are signs a blower motor resistor may need replacing?
Common signs are a blower that runs on only some speeds, stays stuck on one speed, or does not run. Diagnose first, because a bad motor, switch or wiring fault can cause the same symptoms.
How does it connect to the vehicle?
It has OE-style connectors and is a vehicle-specific, direct-fit replacement for the listed applications.
Why is it called both a resistor and a control module?
Four Seasons lists part 20648 as an HVAC Blower Motor Resistor and as an HVAC Blower Motor Control Module. Both names refer to this same front blower speed-control part.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.