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8179805 - : A/C System Information Label for Mercedes-Benz Image

A/C System Information Label

Mercedes-Benz 000-817-98-05
Refrigerant, gt 53, gt 43.
$21.68
MSRP $28.50
Save $6.82
23.9% Off
8177704 - : A/C System Information Label for Mercedes-Benz Image

A/C System Information Label

Mercedes-Benz 000-817-77-04
R1234yf gls580. R1234yf gls63 amg. R1234yf, gls450. A/C System Information Label.
$25.50
MSRP $33.50
Save $8.00
23.9% Off
8206008 - : HVAC Defrost Mode Door Actuator for Mercedes-Benz Image

HVAC Defrost Mode Door Actuator

Mercedes-Benz 8206008
Mode motor. Front.
$91.08
MSRP $120.00
Save $28.92
24.1% Off
85839279 - : Hose & Tube Assembly for GM Image

Hose & Tube Assembly

Ac lines and components, #2. ESCALADE IQ. Cooler to evaporator. Labeled 85839279.
$277.57
MSRP $445.90
Save $168.33
37.8% Off
85773856 - : F (S)Hose for GM Image

F (S)Hose

Ac lines and components, type 2.
$108.23
MSRP $173.86
Save $65.63
37.7% Off
85836234 - : F (S)Hose for GM Image

F (S)Hose

Ac lines and components. Silverado EV. Sierra EV.
$99.35
MSRP $159.60
Save $60.25
37.8% Off
85724439 - : Mount Bracket for GM Image

Mount Bracket

$56.67
MSRP $89.60
Save $32.93
36.8% Off
95711896 - : F Label for GM Image

F Label

$11.27
85778132 - : AC & Heater Case for GM Image

AC & Heater Case

All. From 04/12/2023. Silverado EV. Labeled 85083511. Sierra EV. Labeled 85778132.
$225.58
MSRP $362.38
Save $136.80
37.8% Off
26590104 - : F (S)Case for GM Image

F (S)Case

Envision. Semi-automatic control. 2021-26, single-zone.
$132.69
MSRP $213.17
Save $80.48
37.8% Off
85724437 - : Mount Bracket Sleeve for GM Image

Mount Bracket Sleeve

Type 1. Refrigerant module.
$5.57
MSRP $8.60
Save $3.03
35.2% Off
2048306915 - : A/C Refrigerant Discharge Hose for Mercedes-Benz Image

A/C Refrigerant Discharge Hose

Mercedes-Benz 204-830-69-15
Compressor to valve. Front. Glk250. A/C Refrigerant Discharge Hose.
$134.29
MSRP $179.00
Save $44.71
25% Off
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A/C and Heater Controls FAQ | AutoNation Parts

What are the symptoms of a bad climate control module?

Common warning signs of a failing HVAC control module include an unresponsive dashboard interface, lights flickering on the control panel, or settings changing on their own. If your system is stuck blowing only hot or cold air, it could be a bad module, or you may need to replace the AC heater blend door actuator to restore correct temperature mixing.

Why does my car heater fan only work on high speed?

If your climate control fan works on high speed but fails on lower settings, the culprit is almost always a failed blower motor resistor. This component regulates electrical resistance to control air speeds; when it fails, it defaults to the highest, unrestricted speed setting. If no air blows at all, you may instead need a replacement blower motor.

Why is my car A/C and heater control knob spinning freely?

A spinning knob usually indicates that the plastic post inside the dial has cracked or sheared off, preventing it from grabbing the control switch post. Replacing the worn-out temperature control knobs is an easy DIY fix. However, if the dial is structurally intact but the system fails to adjust, you likely need a new internal temperature control switch.

Why will my car A/C not switch from defrost to vents?

When air only blows out of the windshield defrost vents despite making changes on your dash console, the issue points to a vacuum leak, a failed vacuum control switch, or a faulty mode door actuator. In vacuum-controlled setups, the defrost vent is the safety default setting when system vacuum pressure drops. Be sure to check your vehicle's A/C hoses and fittings to rule out simple line leaks.

How do I choose the correct A/C and heater control panel?

To prevent electronic compatibility issues, you must match the exact specs of your existing assembly (such as automatic dual-zone climate vs. manual climate controls). We highly recommend using our Search by Vehicle Fitment Tool to locate the exact OEM matches. From there, you can browse compatible A/C & heater controls designed specifically for your vehicle configuration.

Why does my climate control shut off when accelerating?

If your air stops blowing or switches vents under acceleration, you are likely losing engine vacuum. This is usually caused by a bad vacuum check valve or a small leak in the climate control lines. If your compressor is shutting down completely under load, check your A/C compressor & clutch assembly or review the system's electronic pressure sensors.