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.
Sdm Module
Mercedes-Benz
906-900-58-01
Sprinter van. With side curtain. Without aux. heater.
$958.88
MSRP $1,410.00
Save $451.12
32% Off 
Air Duct
Mercedes-Benz
2028310946
Between heater case and left nozzle, on nozzle.
$18.45
MSRP $25.00
Save $6.55
26.2% Off 
Hose
Mercedes-Benz
124-832-00-88
Air guide. Between heater case and left nozzle.
$0.98
MSRP $1.40
Save $0.42
30% Off 
Cap
Mercedes-Benz
140-730-49-48
Switch for power windows and seat heater eukalyptus.
$40.58
MSRP $57.00
Save $16.42
28.8% Off 
Fitting
Mercedes-Benz
642-200-02-56
At timing case cover. Cooling water pre-heater.
$116.40
MSRP $162.00
Save $45.60
28.1% Off 
Clamp
Mercedes-Benz
126-988-51-78
Windshield heater feed. At central part below windshield.
$0.12
MSRP $0.20
Save $0.08
40% Off 
Clamp
Mercedes-Benz
005-988-28-78
Seat heater control to front seat backrest,bottom.
$2.21
MSRP $3.00
Save $0.79
26.3% Off 
Hose Line
Mercedes-Benz
223-830-79-03
Coolant pump to stationary heater or connecting point.
$43.80
MSRP $61.00
Save $17.20
28.2% Off 
Fastening Parts
Mercedes-Benz
253-990-00-99-64
Heater to holder. Stationary heater mount parts kit.
$19.68
MSRP $27.00
Save $7.32
27.1% Off 
Air Duct
Mercedes-Benz
2108313946
Between heater case and right nozzle, on nozzle.
$7.26
MSRP $10.00
Save $2.74
27.4% Off 
Condensation Drain Line
Mercedes-Benz
232-832-05-00
Air conditioner box/heater box right drain hose.
$14.15
MSRP $19.50
Save $5.35
27.4% Off 
Socket Nut
Mercedes-Benz
094-994-52-00
Bracket to heater case. Heater case to tunnel.
$5.29
MSRP $7.25
Save $1.96
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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.