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.
Plug
Mercedes-Benz
012-545-67-28
Tail lamp cable harness plug-connection,12-pole. Inboard/heater-operation cable-harness plug-connection.
$16.61
MSRP $22.50
Save $5.89
26.2% Off 
Receptacle Housing
Mercedes-Benz
019-545-28-28
Driver's air bag control unit. 12-pin. Inboard/heater-operation cable-harness plug-connection. 12-pin.
$5.54
MSRP $7.50
Save $1.96
26.1% Off 
Bolt And Washer Assembly
Mercedes-Benz
914001-005002
To 140 470 01 47. Bracket to auxiliary blower m 5x12. Bracket to whelhouse flange. Additional blower to condenser.
$1.72
MSRP $2.40
Save $0.68
28.3% Off 
Screw
Mercedes-Benz
000-990-68-36
Front fender to wheelhouse. Front fender to front panel pillar. Bracket to heater case. Partition panel to side member and to front...
$2.34
MSRP $3.20
Save $0.86
26.9% 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 
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 
Screw
Mercedes-Benz
000-990-52-33
Housing to instrument panel. Strut to steering column jacket tube console and to inside central part. Evaporator to heater case. Bearing...
$1.97
MSRP $2.70
Save $0.73
27% Off 
Receptacle Housing
Mercedes-Benz
002-545-64-26
Additional heater control unit. 2-pin. Inside rearview mirror. 2-pin. Fold-away outside rearview mirror plug connection. 2-pin. Right...
$1.97
MSRP $2.70
Save $0.73
27% Off 
Receptacle Housing
Mercedes-Benz
019-545-29-28
Burglary alarm system control unit. Automatic air conditioner control unit ;14-pole. Seat adjustment control unit. Seat heater relay....
$8.00
MSRP $11.00
Save $3.00
27.3% Off 
Coupling, Mechanical
Mercedes-Benz
017-545-41-28
Seat heater feed-in. 21-pin model 1: spt / jpt model 2: 2.8 slots: 21. Rearview-mirror-memory/steeringcolumn-adjustment control unit...
$27.06
MSRP $37.00
Save $9.94
26.9% Off 
Adapter
Mercedes-Benz
013-545-89-28
Additional stop light. Front brake lining wear indicator plug-adapter. Seat heater feed-in. Seat adjuster feed-in. Independent heating....
$8.00
MSRP $11.00
Save $3.00
27.3% Off 
Tapping Screw
Mercedes-Benz
000000-000542
Bracket to heater case. N 14128 6,3X16-R Diameter: 6,3mm Thread code letter: R. Attachment cover left. Bracket with recirculating pump to...
$1.35
MSRP $1.90
Save $0.55
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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.