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.
Window
Mercedes-Benz
111-990-36-40
HEATER CASE TO FIRE WALL Diameter: 6mm Inside diameter: 6,4mm Outside diameter: 22mm Material thickness: 1mm. TAIL LAMP TO REAR BODY...
$7.87
MSRP $11.00
Save $3.13
28.5% Off 
Hose Clamp
Mercedes-Benz
000-995-50-10
HOSE AT LINE Diameter: 8mm Inside diameter: 8,5mm Outside diameter: 9,5mm Material thickness: 0,6mm. Sep. POINT D-PILLAR TO REAR PANEL...
$4.43
MSRP $6.00
Save $1.57
26.2% Off 
Core Bundle Sealing
Mercedes-Benz
000-540-57-15
Left/right power window motor m40/5. M40/6. 1.0-2.5 MM JPT/MCP2.8/HDK2.8 Leitungsquerschnitt Min/Max: 2,2-3,0mm2 Model 1: MCP Model 2:...
$1.76
MSRP $2.40
Save $0.64
26.7% Off Crimp Tml Pin Contact
Mercedes-Benz
034-545-65-28
Washer nozzle heater. 0.5-0.75 MM2 MQS Leitungsquerschnitt Min/Max: 0,5-0,75mm2 Oberflächenschutz PINs: Sn ELA: + Model 1: MQS Release...
$2.36
MSRP $3.20
Save $0.84
26.3% Off Clamp
Mercedes-Benz
003-997-57-90
Breather line to activated charcoal filter. 10x6 mm inside diameter: 10mm material thickness: 0,6mm. BETWEEN FUEL LINE AND HEATER UNIT....
$3.39
MSRP $4.60
Save $1.21
26.3% Off Hose Clamp
Mercedes-Benz
007-997-08-90
FUEL TANK TO HOSE. 9 MM - 9.5 MM Inside diameter: 9,5mm Outside diameter: 11mm Material thickness: 0,6mm. BREATHER LINE TO ACTIVATED...
$1.88
MSRP $2.60
Save $0.72
27.7% Off Seal
Mercedes-Benz
000-545-76-80
Fuel pump M3/3. 2.2-3.0 MM SLK2.8 Leitungsquerschnitt Min/Max: 2,2-3,0mm2 ELA: + Model 1: SLK Model 2: 2.8 Release tool: W220 589 01 99...
$5.84
MSRP $8.00
Save $2.16
27% Off Receptacle
Mercedes-Benz
014-545-82-26
HEADLAMP WIPER/WASHER PUMP M5/2. 1.5-2.5 MM2 MCP2.8 Leitungsquerschnitt Min/Max: 1,5-2,5mm2 Oberflächenschutz PINs: Ag ELA: + Model 1:...
$2.77
MSRP $3.80
Save $1.03
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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.