Buy OEM Mercedes-Benz A/C and Heating Parts
availability
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.
Hose Line
Mercedes-Benz
294-830-31-00-64
Heater to heat exchanger.
$46.80
MSRP $65.00
Save $18.20
28% Off 
Check Valve
Mercedes-Benz
126-800-00-78
Heater check valve. Instrument panel. Bracket to cup in engine compartment. Air conditioner case to partition panel. Light range...
$41.40
MSRP $58.00
Save $16.60
28.6% Off 
Clamp
Mercedes-Benz
000-995-24-20
Wire cable to heater case. Operating unit wire cable to legroom lever. At nozzle in the rear. Central air duct. Wire cable to blower....
$0.86
MSRP $1.20
Save $0.34
28.3% Off 
Window
Mercedes-Benz
094-990-32-01
Lateral guide to rear end floor. Bumper to cross member. Cable connector to foot operated parking brake. Bracket to heater case. Mud...
$4.10
MSRP $5.75
Save $1.65
28.7% Off 
Screw
Mercedes-Benz
000933-006123
SWITCH ON BLOWER CASE Diameter: 6mm Strength / hardness class: 8.8 Thread code letter: M Thread pitch: 1mm. CONDENSER TO RADIATOR...
$5.54
MSRP $7.50
Save $1.96
26.1% Off 
Lock Pillar Nut
Mercedes-Benz
913008006300
STRUT TO STIFFENING AND TO FRONT CROSS MEMBER Diameter: 6mm Thread code letter: M Thread pitch: 1mm. MOUNTING, HANDLE Diameter: 6mm...
$2.34
MSRP $3.20
Save $0.86
26.9% Off 
Clamp
Mercedes-Benz
000000-000667
20 - 32 MM. 23-30 MM Diameter: 20-32mm Material thickness: 1mm Width across flats: SW8. Between piping and circulation pump. 23-30 MM...
$3.39
MSRP $4.60
Save $1.21
26.3% Off Page
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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.