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.
Heater Box
Mercedes-Benz
170-830-14-62
Air conditioner/tempmatic.
$54.00
MSRP $75.00
Save $21.00
28% Off 
Sealing Ring
Mercedes-Benz
013-997-42-45-64
Line to air conditioning system. 14X2 MM Diameter: 18mm Strength / hardness class: EPDM Inside diameter: 14mm Outside diameter: 18mm...
$4.18
MSRP $5.75
Save $1.57
27.3% Off 
Tapping Screw
Mercedes-Benz
000000-000528
Panelling to front panel 4,8x16. 4,8x16.
$1.76
MSRP $2.40
Save $0.64
26.7% Off 
Hexalobular Screw
Mercedes-Benz
910143008011
With heavy duty rear ac. 2.0L, gas.
$3.95
MSRP $5.50
Save $1.55
28.2% Off 
Cover
Mercedes-Benz
000-545-34-30
Operating unit of tempmatik/automatic air conditioner. Control module air conditioning.
$8.86
MSRP $12.00
Save $3.14
26.2% Off 
Plug
Mercedes-Benz
034-545-93-28
Control for electric suction-type fan. 7-pin. Control module,auxiliary fan 7 polig. 7-pin. Electric suction-type fan control module...
$11.07
MSRP $15.00
Save $3.93
26.2% Off 
Padding
Mercedes-Benz
170-910-16-16
Seat heater,left. Seat heater,right.
$103.37
MSRP $144.00
Save $40.63
28.2% Off 
Clamp
Mercedes-Benz
1089950520
Condensed water drain. Compressor-to-condenser refrigerant line to condenser. Starting cable to side member.
$3.47
MSRP $4.70
Save $1.23
26.2% Off 
Muffler
Mercedes-Benz
000-834-05-30-64
Exhaust guide from heater.
$98.40
MSRP $137.00
Save $38.60
28.2% Off 
Duct
Mercedes-Benz
1708310146
Between heater case and left side nozzle.
$15.99
MSRP $22.00
Save $6.01
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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.