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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.

9069064200 - : Operating Unit for Mercedes-Benz Image

Operating Unit

Mercedes-Benz 906-906-42-00
With rear ac.
Backordered
9065030001 - : Grille for Mercedes-Benz Image

Grille

Mercedes-Benz 906-503-00-01
With rear ac.
$40.80
MSRP $57.00
Save $16.20
28.4% Off
906835004764 - : Dehydrator for Mercedes-Benz Image

Dehydrator

Mercedes-Benz 906-835-00-47-64
For Primary HVAC. With heavy duty rear ac. 2.0l gas. Without heavy duty rear ac. 2.0l diesel.
$38.06
MSRP $53.00
Save $14.94
28.2% Off
545450926 - : Clutch Housing for Mercedes-Benz Image

Clutch Housing

Mercedes-Benz 054-545-09-26
Plug position: a+c+d.
Backordered
6512340039 - : Front Bracket for Mercedes-Benz Image

Front Bracket

Mercedes-Benz 651-234-00-39
With rear ac, 2.1L.
Backordered
4478308101 - : Liquid Line for Mercedes-Benz Image

Liquid Line

Mercedes-Benz 4478308101
Metris. Without rear ac.
Not For Sale
4478300615 - : Suction Hose for Mercedes-Benz Image

Suction Hose

Mercedes-Benz 4478300615
Metris. With rear ac.
Not For Sale
4479060212 - : Fan Assembly for Mercedes-Benz Image

Fan Assembly

Mercedes-Benz 4479060212
With high perf ac.
Backordered
6422000500 - : Rear Bracket for Mercedes-Benz Image

Rear Bracket

Mercedes-Benz 6422000500
#2. With rear ac.
$96.95
MSRP $135.00
Save $38.05
28.2% Off
9068301315 - : Liquid Line for Mercedes-Benz Image

Liquid Line

Mercedes-Benz 906-830-13-15
Without rear ac, rear.
$66.85
MSRP $93.00
Save $26.15
28.1% Off
4478300515 - : Suction Hose for Mercedes-Benz Image

Suction Hose

Mercedes-Benz 4478300515
Metris. Without rear ac.
Not For Sale
2423401601 - : Electrical Wiring Harness for Mercedes-Benz Image

Electrical Wiring Harness

Mercedes-Benz 242-340-16-01
Fuse box to a/c compressor.
Backordered

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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.