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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.

5402505 - : Electric Line for Mercedes-Benz Image

Electric Line

Mercedes-Benz 000-540-25-05
AIR CONDITIONING MULTIFUNCTION SENSOR B31/1. 0.5 MM2 MQS Leitungsquerschnitt Min/Max: 0,5mm2 Model 1: MQS Release tool: W220 589 01 99 60...
$5.78
MSRP $8.00
Save $2.22
27.8% Off
515455328 - : Plug for Mercedes-Benz Image

Plug

Mercedes-Benz 051-545-53-28
COMPRESSOR END. 3-PIN MLK1.2 Model 1: MLK Model 2: 1.2 Slots: 3 Release tool: W220 589 01 99 25. Compressor-side. 3-PIN MLK1.2 Model 1:...
$5.36
MSRP $7.50
Save $2.14
28.5% Off
9822826 - : Crimp Tml Socket Contact for Mercedes-Benz Image

Crimp Tml Socket Contact

Mercedes-Benz 000-982-28-26
Induction throttle valve abs susp. Y86/1. 0.22-0.35 MM2 MLK1.2S Leitungsquerschnitt Min/Max: 0,22-0,35mm2 Oberflächenschutz PINs: Ag ELA:...
$2.20
MSRP $3.00
Save $0.80
26.7% Off
PHP011 - : Mobile Device Holder for Mercedes-Benz Image

Mobile Device Holder

Mercedes-Benz PHP011
This mobile device holder easily mounts to the dash by clipping into your Sprinter HVAC vent. Holder fits most phones and MP3 players,...
$4.50
MSRP $5.00
Save $0.50
10% Off
325459828 - : Receptacle Housing for Mercedes-Benz Image

Receptacle Housing

Mercedes-Benz 032-545-98-28
Brake light switch S9/1. 4-PIN MQS Model 1: MQS Slots: 4 Release tool: W220 589 01 99 60. Malfunction indicator lamp aut. Air...
$3.11
MSRP $4.30
Save $1.19
27.7% Off
2478302300 - : Hose Line for Mercedes-Benz Image

Hose Line

Mercedes-Benz 247-830-23-00
Condensation drain.
$6.89
MSRP $9.50
Save $2.61
27.5% Off
2468302415 - : Refrigerant Line for Mercedes-Benz Image

Refrigerant Line

Mercedes-Benz 246-830-24-15
Condenser to expansion valve.
$105.60
MSRP $147.00
Save $41.40
28.2% Off
1778303202 - : Refrigerant Line for Mercedes-Benz Image

Refrigerant Line

Mercedes-Benz 177-830-32-02
Condenser to connecting point.
$110.40
MSRP $154.00
Save $43.60
28.3% Off
2218350293 - : Dampening for Mercedes-Benz Image

Dampening

Mercedes-Benz 2218350293
Heater case to fire wall. Fire wall decoupling. To evaporator housing. Heater box to firewall. Heater box/air conditioner box.
$5.17
MSRP $7.00
Save $1.83
26.1% Off
MBR458 - : C-Class Station Wagon, 2014, 1:18 for Mercedes-Benz Image

C-Class Station Wagon, 2014, 1:18

Mercedes-Benz MBR458
The all-new C-Class heralds a new chapter in the Mercedes-Benz success story. An interior with a high-class ambiance, touch pad and...
$76.50
MSRP $85.00
Save $8.50
10% Off
MBR046 - : C-Class 1:18 for Mercedes-Benz Image

C-Class 1:18

Mercedes-Benz MBR046
The all-new C-Class heralds a new chapter in the Mercedes-Benz success story. An interior with a high-class ambiance, touch pad and...
$89.10
MSRP $99.00
Save $9.90
10% Off
2048350364 - : Circulation Pump for Mercedes-Benz Image

Circulation Pump

Mercedes-Benz 204-835-03-64
Heating. Stationary heater.
$167.58
MSRP $246.00
Save $78.42
31.9% Off

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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.