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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.

7981003249 - : Tapping Screw for Mercedes-Benz Image

Tapping Screw

Mercedes-Benz 007981-003249
Operating unit bracket to heater case.
Backordered
221476053664 - : Holder for Mercedes-Benz Image

Holder

Mercedes-Benz 221-476-05-36-64
Bracket, fuel metering pump, stationary heater.
Backordered
2129001800 - : Control Unit for Mercedes-Benz Image

Control Unit

Mercedes-Benz 212-900-18-00
Seat heater for rear seat bench.
Backordered
2238310000 - : Air Rectification Grille for Mercedes-Benz Image

Air Rectification Grille

Mercedes-Benz 223-831-00-00
Airflow rectifier grille/PTC booster heater.
Backordered
5403614 - : Equipot Bonding Line for Mercedes-Benz Image

Equipot Bonding Line

Mercedes-Benz 000-540-36-14
Ground line from heater to body.
Backordered
2108100830 - : Ashtray for Mercedes-Benz Image

Ashtray

Mercedes-Benz 210-810-08-30
Used without additional heater ohne deckel.
Backordered
1158312894 - : Hose for Mercedes-Benz Image

Hose

Mercedes-Benz 115-831-28-94
Between water faucet and heater case.
Backordered
2129006102 - : Control Unit for Mercedes-Benz Image

Control Unit

Mercedes-Benz 212-900-61-02
Operating unit, heater and air cond.
Backordered
14083004549115 - : Nozzle for Mercedes-Benz Image

Nozzle

Mercedes-Benz 140-830-04-54-9115
At heater case in the rear.
Backordered
1268350098 - : Seal for Mercedes-Benz Image

Seal

Mercedes-Benz 126-835-00-98
Between fire wall and heater case.
Backordered
2018330010 - : Cover for Mercedes-Benz Image

Cover

Mercedes-Benz 201-833-00-10
At heater case;legroom flap control.
Backordered
1266890128 - : Strud for Mercedes-Benz Image

Strud

Mercedes-Benz 126-689-01-28
Between heater case and instrument panel.
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.