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.
Refrigerant Line
Mercedes-Benz
297-830-46-03-64
Condenser to compressor.
$207.48
MSRP $304.00
Save $96.52
31.8% Off 
Clamp
Mercedes-Benz
004-997-30-90
Fastening, fuel hose to plastic line. 8 mm. Between fuel line and heater unit. 8 mm. Feed and return lines, breathing. 8 mm. Fuel line...
$4.27
MSRP $6.00
Save $1.73
28.8% Off 
Nut
Mercedes-Benz
107-545-00-72
Light switch to instrument panel. Light rotary switch. Operating unit. Central covering to heater case. Air-conditioner...
$2.74
MSRP $3.80
Save $1.06
27.9% Off Hose Line
Mercedes-Benz
294-830-31-00-64
Heater to heat exchanger.
$46.80
MSRP $65.00
Save $18.20
28% Off 
Nut
Mercedes-Benz
126-990-04-51
Hinge lever to cowl. Heater case to fire wall. Stop to interior part. Engine hood hinge to rear wheelhouse. Bumper on fender. Roller...
$10.21
MSRP $14.00
Save $3.79
27.1% 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 
Clamp
Mercedes-Benz
000000-000674
BRACKET TO HEATER UNIT Diameter: 70-90mm Material thickness: 1mm Width across flats: SW8. COLD-AIR SCOOP TO FENDER, RIGHT Diameter:...
$14.15
MSRP $19.50
Save $5.35
27.4% Off 
Tapping Screw
Mercedes-Benz
007981-003257
Air-blast nozzle to heater case diameter: 3,5mm thread code letter: c. (water deflector) on front panel pillar diameter: 3,5mm thread...
$1.11
MSRP $1.50
Save $0.39
26% Off 
Receptacle Housing
Mercedes-Benz
094-545-36-01
Plug socket 12v. Pass. Left rear reading lamp. 2-pin ff6.3 model 1: ff model 2: 6.3 slots: 2. Additional heater control unit. 2-pin ff6.3...
$3.85
MSRP $5.25
Save $1.40
26.7% 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 
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 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.