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Buy OEM Mercedes-Benz A/C and Heating Parts

The heater in your Mercedes-Benz not warming things up? Maybe the air conditioner isn't blowing cold? Most likely, one or another part needs replacing -- something you should do sooner rather than later, to keep spiraling repair costs down. Good thing you came to us here at MB Part Source; we stock replacement heating and AC parts for all Mercedes-Benz models, at competitive prices. Order today, and we'll ship fast, anywhere nationwide; you'll have repairs done in no time. Contact us with any questions.

9066520302 - : Roof Bow for Mercedes-Benz Image

Roof Bow

Mercedes-Benz 906-652-03-02
Standard roof, without roof ac.
$87.60
MSRP $122.00
Save $34.40
28.2% Off
9076570700 - : Rear Panel for Mercedes-Benz Image

Rear Panel

Mercedes-Benz 9076570700
Standard roof. with roof ac.
Backordered
1648307215 - : Refrigerant Line for Mercedes-Benz Image

Refrigerant Line

Mercedes-Benz 164-830-72-15
Separation point to ac housing.
$359.10
MSRP $525.00
Save $165.90
31.6% Off
8177004 - : Information Label for Mercedes-Benz Image

Information Label

Mercedes-Benz 000-817-70-04
Heater/air conditioning. Information label, air conditioning.
$20.30
MSRP $27.50
Save $7.20
26.2% Off
6422000400 - : Front Bracket for Mercedes-Benz Image

Front Bracket

Mercedes-Benz 6422000400
With rear ac, 3.0L. #1.
$98.46
MSRP $137.00
Save $38.54
28.1% Off
1665000377 - : Coolant Hose for Mercedes-Benz Image

Coolant Hose

Mercedes-Benz 166-500-03-77
Connecting point to ac drive.
Backordered
2515015882 - : Hose for Mercedes-Benz Image

Hose

Mercedes-Benz 251-501-58-82
Separation point to ac housing.
Backordered
1665005500 - : Piping + Hose Line Group for Mercedes-Benz Image

Piping + Hose Line Group

Mercedes-Benz 166-500-55-00
Connecting point to ac drive.
Backordered
2425460600 - : Ground Strap for Mercedes-Benz Image

Ground Strap

Mercedes-Benz 242-546-06-00
Supporting frame to a/c compressor.
Backordered
906835010064 - : Filter Dryer for Mercedes-Benz Image

Filter Dryer

Mercedes-Benz 906835010064
Without heavy duty rear ac.
$58.80
MSRP $82.00
Save $23.20
28.3% Off
639506005064 - : Fan Shroud Collar for Mercedes-Benz Image

Fan Shroud Collar

Mercedes-Benz 639506005064
2.0L - gas. With rear ac.
$1.75
MSRP $2.40
Save $0.65
27.1% Off
9066571900 - : Rear Panel for Mercedes-Benz Image

Rear Panel

Mercedes-Benz 9066571900
Standard roof. without roof ac.
$308.94
MSRP $452.00
Save $143.06
31.7% Off

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Mercedes-Benz AC and Heating FAQ

Why is the HVAC in My Mercedes-Benz Not Working Right?

Most likely, because of low or leaking coolant, a failed heater core, a defective AC compressor, or a bad AC condenser. You'll know one from the other by some key symptoms.

How Can I Tell if My Coolant's Low or Leaking?

Start your engine, setting the air conditioner and fans to max/high and listening for the compressor clutch to click. If the system runs too fast, the coolant's probably low. If your Mercedes-Benz isn't due for air conditioning service anytime soon, a leak's likely.

What are the Signs of Heater Core Failure?

The heater not blowing warm, the interior being steamy or smoky, the smell of coolant in the car, and the engine overheating. The core's hoses are the likely problem; they're probably leaking. If you need help with this or any other repairs, get in touch with a Mercedes-Benz service center.

How Can I Diagnose an AC Compressor Defect?

Look, listen, and feel. If the air conditioning sounds funny, if the cabin's warmer than usual, and if the AC clutch is stuck, it's probable. You'll know a bad clutch from connecting a voltmeter and getting no reading. Other causes of compressor trouble include low refrigerant pressure, a faulty cycling switch, and a blown fuse.

How Can I Tell if the AC Condenser in My Mercedes-Benz is Bad?

You'll know it from the HVAC warning light being lit, from frost starting to build up, from the AC button flashing, from the system having discharge pressure issues, and from the vents not blowing cold. If no air's coming through them at all, though, the blower motor's probably gone out. Other reasons for condenser issues include a failed cooling fan and a clogged cabin air filter.