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.
Trim Molding
Mercedes-Benz
213-727-51-00
Door trim, rear door, left. Left door switch group. Seat heater,left.
$19.68
MSRP $27.00
Save $7.32
27.1% Off 
Plate
Mercedes-Benz
000-584-02-13
Independent heating. On fuel filler flap. In fuel filler flap. In fuel-tank flap. Auxiliary heating. To tank recess. To interior fuel...
$3.10
MSRP $4.20
Save $1.10
26.2% Off 
Electrical Wiring Harness
Mercedes-Benz
213-540-59-54
Windshield heater. Heated wind screen f1/6;f32/4 to n61. Windshield heating.
Valve
Mercedes-Benz
000-506-28-64
(3/2-way solenoid valve). Switchover valve, auxiliary heater. At bracket. Change-over valve.
Heating Line
Mercedes-Benz
253-506-08-00
Connecting point to heater. Additional water pump to switchover valve. Connecting point to connecting point.
Plug Holder
Mercedes-Benz
000-995-03-83
For sheet thickness 1 to 3 mm. Safety belt,top. To footwell cover. Plug to cable duct. Connector unit. Line attachment. Seat...
$2.46
MSRP $3.40
Save $0.94
27.6% Off 
Spacer
Mercedes-Benz
000-995-66-65
Bowden cable to heating feed hose. Compressor-to-condenser refrigerant line to side member. Oil pressure gauge line to speedometer drive...
$5.29
MSRP $7.25
Save $1.96
27% Off 
Control Unit
Mercedes-Benz
222-900-82-21
Rear seat heaters. Right seat. Rear seat, left. Armrest heating. Rear seat heating. Left driver's seat. Seat heater for rear seat bench....
$116.00
MSRP $170.00
Save $54.00
31.8% Off 
Double End Stud
Mercedes-Benz
000-991-59-08
Refrigerant line to refrigerant line. Connecting point mount. Separation point. Fastening, connecting point. Fastening at expansion...
$5.54
MSRP $7.50
Save $1.96
26.1% Off 
Plug
Mercedes-Benz
037-545-20-28
Rear-end window roller blind. 6 PIN SLK2.8 Model 1: SLK Model 2: 2.8 Slots: 6 Release tool: W220 589 01 99 62. TANK CONNECTOR X25/4. 6...
$5.10
MSRP $7.00
Save $1.90
27.1% Off 
Line Bracket
Mercedes-Benz
002-995-53-77
Brake line to front axle Diameter: 5mm Inside diameter: 3,2mm Outside diameter: 5,2mm. Brake line to frame Diameter: 5mm Inside diameter:...
$3.44
MSRP $4.70
Save $1.26
26.8% Off 
Switch Block
Mercedes-Benz
213-905-42-09
Operating module automatic air cond. Rear control panel. Air conditioning system in rear passenger compartment.
$169.86
MSRP $250.00
Save $80.14
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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.